HA13614FH

Combo (Spindle & VCM) Driver

ADE-207-246D (Z)

Preliminary

5th Edition

October 1998

Description

This COMBO driver for HDD application consists of sensorless spindle driver and BTL type VCM driver.

"PWM soft switching function" for low power dissipation and less commutation acoustic noise at the same
time is implemented by using the IPIC* process.

Note:

I

ntelligent

ower

Features

PWM soft switching drive

Small surface mount package: FP-48T

Low thermal resistance: 30

C/W with 4 layer multi glass-epoxy board

Low output on resistance

Spindle

1.2

Typ

VCM

1.4

Typ

TTL compatible input level (with 3.3 V logic interface)

High precision reference voltage output (for 3.3 V power supply)

Functions

16 bit serial port

2.0 A Max/3-phase spindle motor driver with PWM soft switch function

1.5 A Max BTL VCM driver with low crossover distortion

PWMDAC for VCM drive current control

Power off brake function for spindle motor

Auto retract with constant output voltage

Booster

Internal Protector (OTSD, LVI)

Precision power monitor

OP amplifier

HA13614FH

Pin Description

Pin No.

Pin Name

Function

OP1OUT

Output of OP amp. 1

OP1IN()

Inverted input of OP amp. 1

OP2IN(+)

Non-inverted input of OP amp. 2

Vss

Power supply for +5 V

OP2OUT

Output of OP amp. 2

External time costant connection terminal for phase compensation of VCM
driver

VCMPS

Current sensing terminal for VCM driver

VCMN

Output of VCM driver (Inverted output of VCMP)

Current sensing terminal for VCM driver (differential input for VCMPS)

VCMIN

Input of VCM driver (differential input for VREF)

VCMP

Output of VCM driver (inverted output of VCMN)

VCMSLC

External capacitor connection terminal for stabilizing internal reference
voltage of VCM driver

RETPOW

Power supply terminal of retract driver

RETSET

Output voltage set up terminal of retract driver

BC1

External capacitor connection terminal for pumping of booster

BC2

Vpsv

+12 V power supply for VCM driver

VBST

Output of booster circuit

BRKDLY

Time constance set up terminal of delayed brake

U-phase output of spindle motor driver

V-phase output of spindle motor driver

RNF

Current sensing terminal for spindle motor driver

BRK

External capacitor connection terminal for power off brake

LVI2

Resistor connection terminal for set up the threshold of +3.3 V power monitor

Center tap connection terminal for spindle motor

ISENSE

Input of PWM comparator

W-phase output of spindle motor driver

Vpss

+12 V power supply for spindle motor driver

FLTOUT

PWMDAC output for current control of spindle motor driver

VpsOUT

Output of power supply switch

VpsIN

Input of power supply switch (+12 V)

NFLT

Output of pre-filter for B-EMF sensing (capacitor connection terminal)

UFLT

HA13614FH

Pin Description (cont)

Pin No.

Pin Name

Function

SPNCTL

PWMDAC input for current control of spindle motor driver

PHASE

Toggle signal output for zero-crossing timing of B-EMF

COMM

Commutation signal input for spindle motor driver during synchronous driving

CLK

Master clock input of commutation logic circuit

SCLK

Clock input of serial port for data strobe

SEENAB

Enable signal input of serial port

DATA

Data signal input of serial port

12VGOOD

Output of power monitor for +12 V power supply (open drain)

VIPWML

PWMDAC input for current control of VCM driver

VIPWMH

VREF

Output of internal reference voltage

DACOUT

PWMDAC output for current control of VCM driver

DELAY

Capacitor connection terminal for set up the power on reset time

LVI1

Resistor connection terminal for set up the threshold of +12 V power monitor

POR

Output of power on reset signal

TAB

GND

Ground of this IC

HA13614FH

Block Diagram

128

CLK

BRK

BRAKE

POR

OTSD

UFLT

C101

C112

C116

C102

B-EMF

Amps

Brake

control

Retract

driver

Spindle

driver

CLK

MASK

OP Amp.1

OP Amp.2

B-EMF

PWMOUT

SPN
GAIN

EXTCOM

Commutation

logic

STANDBY

SPNENAB
EXTCOM
BRAKE
VCMENAB
SOFTSW
TEST
SPNGAIN

Serial

input

RESET

VCM

driver

VCMENAB

BST

Vps Vss

BST

Selector

Vref(=5.3V)

BIAS

Booster

CLK

TEST

1.4V ref.

VREF

C104

FLTOUT

C103

Input

filter

Power

monitor2

Vss

Power

monitor1

NFLT

VIPWMH

PWM

decoder

VIPWML

DACOUT

COMM

PHASE

SPNCTL

(TESTOUT)

OP1OUT

OP2IN(+)

OP2OUT

VCMIN

SCLK

DATA

SEENAB

OP1IN(

)

C111

VpsIN

VpsOUT

Vpss

BRKDLY

Vss

Vss (+5V)

Vps (+12V)

Vps

(+12V)

Vdd
(+3.3V)

Vss (+5V)

C113

Current

control

(PWM)

VCMP

VCMSLC

VCMN

Vpsv

RETPOW

ISENSE

RETSET

VBST

RNF

VCMPS

12VGOOD
(Open Drain)

POR

(L: RESET)

C114

C110

R106

C115

R105

R109

C107

R103

LVI1

LVI2

R101

R107

R102

R108

DELAY

C105

C117

BC1

BC2

TAB

POR

delay

POW DWN

R104 C108

C106

Vss (+5V)

R110

C109

OTSD

HA13614FH

Serial Port

Construction

Serial

port

SEENAB

SCLK

DATA

Note: When

POR

= Low, internal RESET signal becomes High and when RESET = High,

all bit of serial port are set up default value as shown in table 2.

D0 to D15

to each block

RESET *

Figure 1 Construction of Serial Port

Table 1

Truth Table of Internal RESET Signal

I n p u t

O u t p u t

N o t e

POR

RESET

Low

High

Open

Low

Note:

1. When +5 V or +3.3 V power supply goes to Low, then

POR

= Low.

POR

output is able to construct the wired logic with external signal.

Input Data

D15 D14 D13 D12 D11 D10 D9

MSB

LSB

Figure 2 Input Data

The serial port is required the 16 bits data (D0 to D15). When the data length is less than 16 bits, the
internal register will not be up dated. And when the data length is more than 16 bits, this register will take
later 16 bits and ignore the faster bit.

HA13614FH

Bit Assingnment

Table 2

Bit Assingnment of Serial Port

B i t

Symbol

1 (= High)

0 (= Low)

D e f a u l t

N o t e

STANDBY

Active

Stand by

VCMENAB

VCM enable

VCM disable

SPNENAB

Spindle enable

Spindle disable

BRAKE

Brake enable

Brake disable

SENSEN

B-EMF sense enable

B-EMF sense disable

VARCNT

Variable count

Normal count

EXTCOM

External commutation

Internal commutation

SRCTL1

High slew rate

Low slew rate

SRCTL2

Commutation time select (See table 4)

SRCTL3

D10

OFFTIME1

Off time select of PWM drive (See table 5)

D11

OFFTIME2

D12

SPNGAIN

High gain

Low gain

D13

RETRACT

Retract

Not retract

D14

TEST1

For testing

D15

TEST2

Note:

1. The priority of operation for each bit is as shown in table 3.

2. This bit is using for start up of spindle motor. Please refer to the application note explained

about start up of spindle motor.

3. The slew rate during every commutation of spindle motor is selectable by using this bit. Please

select the suitable value of this bit for your motor.

4. This bit is used for setting up the commutation time (refer to figure 9) of spindle motor as shown

in table 4.

5. This bit is used for setting up the off time at PWM driving of spindle motor as shown in table 5.

6. The gain of current control for spindle motor is selectable by using this bit. Please select the

suitable value of this bit for your motor.

7. This bit will be used in fabrication test. Please set up D15 = "0" normally.

SPNCTL terminal (pin 35) is using for output terminal in the case of "1" for testing. Then please

do not input signal into pin 35 from outside.

HA13614FH

Table 3

Truth Table

Input

Driver Output

OTSD

12VGOOD

STAND BY

SPNENAB

BRAKE

RETRACT

VCMENAB

Spindle
Driver

VCM
Driver

Retract
Driver

Power
Switch

Enable

Low

Braking

Cut off

Disable

Low

Braking

Cut off

Disable

High

Low

Braking

Cut off

Disable

High

Cut off

Disable

High

Braking

Cut off

Disable

High

Cut off

Disable

High

Cut off

Disable

High

Braking

Cut off

Disable

High

Cut off

Disable

High

Cut off

Disable

High

Braking

Cut off

Disable

High

Cut off

Note:

1. The 12VGOOD terminal is open drain output type. The 12VGOOD signal output is determined by

the power monitor output for 12 V power supply,

POR

output and OTSD signal as shown in the

table below.

12 V Supply

POR

O T S D

1 2 V G O O D

Cut off

Low

Enable

Low

Normal

High

Disable

High

2. The symbol "

" means "Don't care".

Table 4

Commutation Time

SRCTL2

SRCTL3

Commutation Time (s)

(128 / fclk)

No slew rate control

Note: The "fclk" is the frequency on pin "CLK". (Recommendation: 20 MHz)

HA13614FH

Commutation Timing of the Spindle motor

B-EMF

PHASE
(EXTCOM=1)

PHASE
(EXTCOM=0)
*1

tspndly

tsrctl

commutation

time

Note: 1.

OUTPUT

Vpss

Vpss/2

GND

B-EMF

PWM

In the case of external commutation mode (EXTCOM=1), the signal PHASE will toggle at every B-
EMF zero-crossing, and selected the internal commutation mode (EXTCOM=0), the PHASE will
have the same period as B-EMF of the spindle motor.
This is delay time by pre-LPF of the B-EMF amplifier. This delay time can be adjust by the value
of external filter capacitor C101, C102. To get the maximum driving efficiency of the spindle
motor, these capacitor value should be chosen as equation (17) in the "External components"
section.
The slew rate of every commutation timing is controllable by changing the SRCTL1, SRCTL2 and
SRCTL3 in the serial port.

Figure 9 Commutation Timing of the Spindle motor

HA13614FH

Application

MPU

BRK

BRKDLY

VpsOUT

UFLT

NFLT

FLTOUT

C112

VpsIN

C116

C101

12VGOOD

PHASE

SPNCTL

HA13614FH

OP2IN(+)

COMM

OP1IN(

)

OP1OUT

Vss

CLK

SCLK

DATA

SEENAB

VIPWMH

VIPWML

C102

C103

VREF

OP2OUT

VCMIN

DACOUT

to MPU

Vss
(+5V)

Vps
(+12V)

Vss

Vdd
(+3.3V)

POR

C104

C113

R103

R106

R105

C105

DELAY

C110

C111

C114

R101

R110

R109

R102

R107

R108

C117

TAB

Vpss

RNF

ISENSE

RETPOW

Vpsv

C115

VCMSLC

RETSET

LVI2

VCMP

VCMPS

VCMN

LVI1

BC1

BC2

VBST

RNF

C109

C107

R104 C108

C106

HA13614FH

External Components

Parts No.

Recommendation
V a l u e

P u r p o s e

N o t e

R101

Set up threshold of power monitor for Vps

R102

R103

5.6 k

Pull up for POR terminal

R104

Gain dumping for VCM driver

R105

Set up output voltage of retract driver for pin VCMP

R106

R107

Set up threshold of power monitor for Vdd

R108

R109

Set up time constance of delayed brake

R110

5.6 k

Pull up for 12VGOOD terminal

Filter constant of LPF

Rnf

0.33

Current sensing for spindle motor

0.47

Current sensing for VCM

C101, C102

Pre-filter of B-EMF amplifier

C103

Filter of PWMDAC for current control of spindle motor

C104

0.1

Filter of internal reference output

C105

0.1

Set up delay time of

POR

signal

C106

0.22

Boost up of power supply

C107

2.2

Stabilizing boost up voltage

C108

Gain dumping for VCM driver

C109

0. 1

Stabilizing reference voltage of VCM driver

C110

0.1

By passing of power supply

C111

0.1

C112

Keeping brake function

C113

0.1

By passing of power supply

C114

0.1

C115

Stabilizing output voltage of retract driver for pin VCMP

C116

Set up time constance of delayed brake

C117

0.1

Stabilizing LVI2 terminal

Filter constant of LPF

HA13614FH

Notes: 1. The operation threshold voltage of Vps or Vdd is determined by resistor R101, R102 or R107,

R108 as follows.

12VGOOD
(for Vps)

POR

(for Vdd)

Vdwn

Vup

Vps

· for Vps

R101
R102

Vup(Vps) = (Vsd1 + Vhys3)

1 +

[V]

Recovery
voltage

(1)

R101
R102

Vdwn(Vps) = Vsd1

1 +

[V]

Cut off
voltage

(2)

where, Vsd1 : Operating voltage of the power monitor [V] (refer to Electrical Charasteristics)

Vhys3 : Hysteresis voltage of the power monitor [V] (refer to Electrical Charasteristics)

· for Vdd

R107
R108

Vup(Vdd) = (Vsd1 + Vhys4)

1 +

[V]

Recovery
voltage

(1)'

R107
R108

Vdwn(Vdd) = Vsd1

1 +

[V]

Cut off
voltage

(2)'

where, Vhys4 : Hysteresis voltage of the power monitor [V] (refer to Electrical Charasteristics)

2. The relation between PWMDAC input VIPWMH, VIPWML for VCM driver current control and VCM

driver input (VCMIN VREF) is determined by following equation. (refer to below figure)

VCMIN

VREF =

(64

DPWMH + DPWML)

3.2

6.4

6500

(3)

where, VREF

: Internal reference voltage [V] (refer to Electrical Charasteristics)

DPWMH

: Duty of input signal on terminal VIPWMH [%]

DPWML

: Duty of input signal on terminal VIPWML [%]

VREF

VREF
5.3V

VIPWMH

VIPWML

DACOUT

R1L

VCMIN

to VCM driver

VREF

5.3V

5.3

3.2V

R1H

OP2IN(+)

OPAmp.2

GND

OP2OUT

VCMIN

R5/R4=0.604

R1=R1L//R1H//R0

=740

3. The 3rd order LPF at next stage of PWMDAC is characterized by internal OP amp. and capacitor

C1, C2, C3 and resistor R2, R3. These components value are determined by following equations.

C1 =

[F]

(4)

HA13614FH

C3 = 220

[F]

(5)

C2 =

[F]

1
2

k + 1

(6)

R2 =

[

]

k + 1

(7)

R3 = R2

[

]

(8)

k =

= 0.604

R5
R4

(9)

where, f c

: Cut off frequency of 3rd order LPF [Hz]

: Output resistance of PWMDAC [

] (refer to Electrical Characteristics)

4. The driving current of VCM Ivcm is determined by following equation.

Ivcm =

Gvcm

[A]

Vvcmin

VREF

(10)

where, Vvcmin : Input voltage on terminal VCMIN (pin 10) [V]

Gvcm

: Transfer function of VCM driver [dB] (refer to Electrical Characteristics)

5. Capacitor C108 and resistor R104 are useful to dump the gain peaking of VCM driver. These

components also determine the gain band width of VCM driver BW1 which should be chosen less
than 10 kHz, as follows.

R104 =

]

BW1

Lvcm

(11)

C108 =

[F]

Lvcm

+ R

R104

(12)

where, R

: Coil resistance of VCM [

]

Lvcm

: Coil inductance of VCM [H]

6. Retract current Iret is determined by following equation.

R105
R106

0.7

1 +

Vretsat

Iret =

[A]

+ R

(13)

Vretsat : Output saturation voltage of retract driver [V]

(refer to Electrical Characteristics)

7. The relation between duty of input signal on terminal SPCNTL (pin 34) and output current of

spindle motor driver Ispn is as follows.

Ispn =

duty

[A]

Vref

Voff1

Rnf

(14)

Vref

: Reference voltage of current control amplifier [V]

Vref = Vref2 (@SPNGAIN = 1)

Vref = Vref3 (@SPNGAIN = 0)

Voff1

: Offset voltage of current control amplifier [V]
(refer to Electrical Characteristics)

HA13614FH

8. The delay time of the power monitor for start up is as follows.

tpor = 140

C105

[ms]

(15)

9. The cut off frequency fcpwm of the filter for current control input of the spindle motor is as

follows.

fcpwm =

[Hz]

20k

C103

(16)

10. To get the maximum driving efficiency for spindle motor, the capacitor C101, C102 should be

chosen as following equation.

C101 = 0.8

C102

(17-1)

C102 =

[F]

tan(

/6)

13k

fbemf

(17-2)

fbemf

: Back EMF frequency at standard rotation speed of the spindle motor [Hz]

where, please set the value of C101, C102 so that C101 < C102 can be kept including the

accuracy of the absolute value to assure the stability of motor starting and speed lock state.

11. To stabilize output voltage od retract driver, the capacitor C115 should be chosen as following

equation. Please chose same values for C115.

C115 =

(R105 // R106)

[F]

(18)

12. Time t

BRKDLY

of the delayed brake of V, W phase for retract is determined by resistor R109 and

capacitor C112, C116 as following equation.

C116

R109

C116
C112

1 +

BRKDLY

ln 1

C116
C112

1 +

Vthb

BRK0

[s]

(19)

where, Vthb

: Threshold voltage that output MOS transistor of spindle motor driver is
operated.

BRK0

= Vpss 0.7 [V]

Vpss

: +12 V power supply for spindle motor driver

and, please select capacitor C112 and C116 that the ratio of C112/C116 is more than 3 times,

because the last voltage of BRK and BRKDLY terminals falls if the value of C116 is big for C112,
and effect of brake goes down.

HA13614FH

Absolute Maximum Ratings

I t e m

Symbol

Rating

Unit

N o t e

Power supply

Vss

6.0

Vpss

Vpsv

Spindle current

Ispn

2.0

VCM current

Ivcm

1.5

Input voltage

Vin

0.33 to Vss +1.0

Power dissipation

5.0

Junction temperature

150

Storage temperature

Tstg

55 to +125

Notes: 1. Operating voltage range is 4.25 V to 5.5 V. If power supply voltage exceed this operating range

in actual application, the reliability of this IC can not be guaranteed.

2. Operating voltage range is 10.2 V to 13.8 V.

3. ASO (Area of Safety Operation) of each output transistor is shown in figure 10.

Operating locus must be within the ASO.

4. Applied to CLK, COMM, SPNCTL, VIPWMH, VIPWML,

SCLK

, DATA and

SEENAB

5. Thermal resistance

j-a

C/W (Using 4 layer glass epoxy board)

6. Operating junction temperature range is 0

C to +125

t = 1 ms
t = 10 ms
t = 100 ms

0.10

10 15

100

1.0

2.0

t = 1 ms
t = 10 ms
t = 100 ms

0.10

VDS (V)

IDS (A)

VDS (V)

100

1.0

1.5

for Spindle motor driver

for VCM driver

Figure 10 ASO of Output Transistor

HA13614FH

Electrical Characteristics (Ta = 25

C, Vss = 5 V, Vpss = Vpsv = 12 V)

Item

Symbol

Min

Typ

Max

Unit

Test Conditions

Applicable
Pins

Note

Supply current

Iss0

2.0

3.4

Stand by,
fclk=20MHz

Vss

Iss1

3.2

4.2

fclk=20MHz

Ips0

1.6

2.4

Stand by

Vpss & Vpsv

Ips1

Power
switch

Output on
resistance

Ron0

0.2

0.3

VpsIN
VpsOUT

Output
leacage
current

Icer0

VpsOUT=15V,
VpsIN=0V,
Vss=0V,
Vpss=Vpsv=0V

Logic
input

Input low
current

Iil1

Vil=0V

CLK,
COMM,

Input high
current

Iih1

Vih1=5V

SCLK

DATA,

Input low
voltage

Vil1

0.8

SEENAB

VIPWMH,

Input high
voltage

Vih1

2.0

VIPWML,
SPNCTL

Clock
frequency

fclk

MHz

Logic
output1

Output high
voltage

Voh1

4.6

Ioh=1mA

PHASE

Output low
voltage

Vol1

0.4

Iol=2mA

Logic
output2

Output
leakage
current

Icer1

Vo=5.5V

POR

12VGOOD

Output low
voltage

Vol2

0.4

Iol=2mA

HA13614FH

Electrical Characteristics (Ta = 25

C, Vss = 5 V, Vpss = Vpsv = 12 V) (cont)

Item

Symbol

Min

Typ

Max

Unit

Test Conditions

Applicable
Pins

Note

Spindle
motor
driver

Output on
resistance

Ron1

1.2

1.5

1.5A

U, V, W

On resistance
during braking

Ron2

3.0

Io=0.4A,
BRK=3V

Output
leakage
current

Icer3

Vo=15V

Output clamp
diode forward
voltage

0.9

1.2

If=0.5A

Output MOS
operating
threshold
voltage

Vthb

Ron=(Ron/2)

Leakage
current on
brake terminal

Icer4

0.6

Vpsv=GND,
Vo=8V

BRK,
BRKDLY

Input filter &
current control
amp.

Vref2

490

10%

SPNGAIN=1,
SPNCTL=Vss

ISENSE,
FLTOUT

Vref3

250

10%

SPNGAIN=0,
SPNCTL=Vss

Current
control amp.
offset voltage

Voff1

SPNCTL=GND

B-EMF
amp.

Input offset
voltage

Voff2

Synchronous drive

U, V, W,
UFLT,
NFLT

Voff3

B-EMF sens drive

Input
hysteresis
voltage

Vhys1

110

mVp-p

Synchronous drive

Vhys2

mVp-p

B-EMF sens drive

HA13614FH

Electrical Characteristics (Ta = 25

C, Vss = 5 V, Vpss = Vpsv = 12 V) (cont)

Item

Symbol

Min

Typ

Max

Unit

Test Conditions

Applicable
Pins

Note

VCM
driver

Output on
resistance

Ron2

1.4

1.8

1.0A

VCMP,
VCMN

Output
leakage
current

Icer5

Vo=15V

Output
quiescent
voltage

Vpsv/2

=0.47

, R

=10

L=2mH,
R104=1.6M

C108=120pF

Transfer gain

Gvcm

VCMPS, Rs

Gain band
width

BW1

kHz

Input
resistance

Rin

30%

VCMIN

PWM
DAC

Input
minimum
pulse width

Tpwm

VIPWMH,
VIPWML

Output
resistance

740

30%

FLTOUT

Output voltage

Vo1

0.4

10%

VIPWMH=High,
VIPWML=High

VCMPS, Rs

Vo2

0.4

10%

VIPWMH=Low,
VIPWML=Low

Output offset
voltage

Voff4

Gain ratio

Rat

Rat=VIPWMH/
VIPWML

Reference
voltage

Vref

5.3

Io=

1mA

VREF

Retract
driver

Retract driver
output voltage

Vretout

1.0

Vpss=6.0V,
R105=13k

R106=33k

=10

, R

=0.47

VCMP

VCMN output
saturation
voltage

Vretsat

0.1

0.2

0.4

VCMN

HA13614FH

Electrical Characteristics (Ta = 25

C, Vss = 5 V, Vpss = Vpsv = 12 V) (cont)

Item

Symbol

Min

Typ

Max

Unit

Test Conditions

Applicable
Pins

Note

Power
monitor

Operating
voltage

Vsd1

1.415

LVI1, LVI2

Hysteresis

Vhys3

LVI1

Vhys4

LVI2

Cut off voltage

Vsd2

4.1

Vss

Recovery
voltage

Vrec

4.4

POR delay
time

tpor

C105=0.1

POR

OP
amp.1

Output
resistance

Rout2

Shorted between
OP1OUT and
OP1IN()

OP1OUT

Output
maximum
current

Iomax1

Output voltage
deviation

Vdev

1.415

Input bias
current

IB1

OP1IN()

Gain band
width

BW2

1.0

MHz

OP1OUT

OTSD

Operating
temperature

Tsd

125

150

Hysteresis

Thys

Note:

1. Specified by sum of supply current to Vpss and Vpsv terminal.

2. Specified by sum of saturation voltage and lower saturation voltage.

3. Specified by differential voltage on both side of R

at shorting between DACOUT and OP2IN(+),

and between OP2OUT and VCMIN, respectively.

4. Guaranteed by design.

5. The 12VGOOD terminal is open drain output type.

Cautions

1. Hitachi neither warrants nor grants licenses of any rights of Hitachi's or any third party's patent,

copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party's rights, including
intellectual property rights, in connection with use of the information contained in this document.

2. Products and product specifications may be subject to change without notice. Confirm that you have

received the latest product standards or specifications before final design, purchase or use.

3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,

contact Hitachi's sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.

4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly

for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-
safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.

5. This product is not designed to be radiation resistant.

6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without

written approval from Hitachi.

7. Contact Hitachi's sales office for any questions regarding this document or Hitachi semiconductor

products.

Hitachi, Ltd.

Semiconductor & Integrated Circuits.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109

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Singapore 049318
Tel: 535-2100
Fax: 535-1533

URL

NorthAmerica

: http:semiconductor.hitachi.com/

Europe

: http://www.hitachi-eu.com/hel/ecg

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: http://www.has.hitachi.com.sg/grp3/sicd/index.htm

Asia (Taiwan)

: http://www.hitachi.com.tw/E/Product/SICD_Frame.htm

Asia (HongKong)

: http://www.hitachi.com.hk/eng/bo/grp3/index.htm

Japan

: http://www.hitachi.co.jp/Sicd/indx.htm

Hitachi Asia Ltd.
Taipei Branch Office
3F, Hung Kuo Building. No.167,
Tun-Hwa North Road, Taipei (105)
Tel: <886> (2) 2718-3666
Fax: <886> (2) 2718-8180

Hitachi Asia (Hong Kong) Ltd.
Group III (Electronic Components)
7/F., North Tower, World Finance Centre,
Harbour City, Canton Road, Tsim Sha Tsui,
Kowloon, Hong Kong
Tel: <852> (2) 735 9218
Fax: <852> (2) 730 0281
Telex: 40815 HITEC HX

Hitachi Europe Ltd.
Electronic Components Group.
Whitebrook Park
Lower Cookham Road
Maidenhead
Berkshire SL6 8YA, United Kingdom
Tel: <44> (1628) 585000
Fax: <44> (1628) 778322

Hitachi Europe GmbH
Electronic components Group
Dornacher Stra§e 3
D-85622 Feldkirchen, Munich
Germany
Tel: <49> (89) 9 9180-0
Fax: <49> (89) 9 29 30 00

Hitachi Semiconductor
(America) Inc.
179 East Tasman Drive,
San Jose,CA 95134
Tel: <1> (408) 433-1990
Fax: <1>(408) 433-0223

For further information write to:

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