1
IDT29FCT520AT/BT/CT/DT
MULTILEVEL PIPELINE REGISTER
EXTENDED COMMERCIAL TEMPERATURE RANGE
NOVEMBER 1999
1999 Integrated Device Technology, Inc.
DSC-4215/4
c
IDT29FCT520AT/BT/CT/DT
EXTENDED COMMERCIAL TEMPERATURE RANGE
MULTILEVEL
PIPELINE REGISTER
DESCRIPTION:
The 29FCT520T contains four 8-bit positive edge-triggered registers.
These may be operated as a dual 2-level or as a single 4-level pipeline.
A single 8-bit input is provided and any of the four registers is available at
the 8-bit, 3-state output.
These devices are ideal for high speed burst writes and reads in
processor/memory applications.
FUNCTIONAL BLOCK DIAGRAM
FEATURES:
-
A, B, C and D speed grades
-
Low input and output leakage
1 A (max.)
-
Extended commercial range of 40C to +85C
-
CMOS power levels
-
True TTL input and output compatibility
V
OH
= 3.3V (typ.)
V
OL
= 0.3V (typ.)
-
High drive outputs (-15mA I
OH
, 48mA I
OL
)
-
Meets or exceeds JEDEC standard 18 specifications
-
Available in PDIP, SOIC, SSOP, and QSOP packages
M UX
O C TAL RE G . B1
O C TAL RE G . B2
O C TAL RE G . A2
O C TAL RE G . A1
M U X
O E
Y
0
- Y
7
8
REG ISTER
CONTRO L
CLK
I
0
, I
1
1
2
S
0
, S
1
2
D
0
- D
7
8
2
EXTENDED COMMERCIAL TEMPERATURE RANGE
IDT29FCT520AT/BT/CT/DT
MULTILEVEL PIPELINE REGISTER
PIN CONFIGURATION
PDIP/ SOIC/ SSOP/ QSOP
TOP VIEW
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Rating
Max.
Unit
V
TERM(2)
Terminal Voltage with Respect to GND
0.5 to +7
V
V
TERM(3)
Terminal Voltage with Respect to GND
0.5 to V
CC
+0.5
V
T
STG
Storage Temperature
65 to +150
C
I
OUT
DC Output Current
65 to +120
mA
8T-link
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM
RATINGS may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at these or
any other conditions above those indicated in the operational sections
of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect reliability. No
terminal voltage may exceed Vcc by +0.5V unless otherwise noted.
2. Inputs and Vcc terminals only.
3. Outputs and I/O terminals only.
CAPACITANCE (T
A
= +25
O
C, f = 1.0MHz)
Symbol
Parameter
(1)
Conditions
Typ.
Max.
Unit
C
IN
Input Capacitance
V
IN
= 0V
6
10
pF
C
OUT
Output Capacitance
V
OUT
= 0V
8
12
pF
8T-link
NOTE:
1. This parameter is measured at characterization but not tested.
5
6
7
8
9
10
11
12
GND
1
2
3
4
24
23
22
21
20
19
18
17
Vcc
16
15
14
13
P24-1
SO24-2
SO24-7
SO24-8
S
0
S
1
Y
0
Y
1
Y
2
Y
3
Y
4
Y
5
OE
I
0
I
1
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
CLK
Y
6
Y
7
PIN DESCRIPTION
Pin Names
Description
Dn
Register Input Port
CLK
Clock Input. Enter data into registers on LOW-to-HIGH
transitions.
I
0
, I
1
Instruction Inputs. See Figure 1 and Instruction Control
tables.
S
0
, S
1
Multiplexer Select. Inputs either register A
1
, A
2
, B
1
, or B
2
data to be available at the Output Port.
OE
Output Enable for 3-State Output Port
Yn
Register Output Port
REGISTER SELECTION
S
0
S
1
Register
0
0
B
2
0
1
B
1
1
0
A
2
1
1
A
1
3
IDT29FCT520AT/BT/CT/DT
MULTILEVEL PIPELINE REGISTER
EXTENDED COMMERCIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: T
A
= -40C to +85C, V
CC
= 5.0V 5%
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
V
IH
Input HIGH Level
Guaranteed Logic HIGH Level
2
--
--
V
V
IL
Input LOW Level
Guaranteed Logic LOW Level
--
--
0.8
V
I
IH
Input HIGH Current
(4)
V
CC
= Max.
V
I
= 2.7V
--
--
1
A
I
IL
Input LOW Current
(4)
V
I
= 0.5V
--
--
1
I
OZH
High Impedance Output Current
(4)
V
CC
= Max.
V
O
= 2.7V
--
--
1
A
I
OZL
V
O
= 0.5V
--
--
1
I
I
Input HIGH Current
(4)
V
CC
= Max., V
I
= V
CC
(Max.)
--
--
1
A
V
IK
Clamp Diode Voltage
V
CC
= Min., I
IN
= 18mA
--
0.7
1.2
V
I
OS
Short Circuit Current
V
CC
= Max.
(3)
, V
O
= GND
60
120
225
mA
V
OH
Output HIGH Voltage
V
CC
= Min.
I
OH
= 8mA
2.4
3.3
--
V
V
IN
= V
IH
or V
IL
I
OH
= 15mA
2
3
--
V
OL
Output LOW Voltage
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OH
= 48mA
--
0.3
0.5
V
V
H
Input Hysteresis
--
--
200
--
mV
I
CC
Quiescent Power Supply Current
V
CC
= Max., V
IN
=
GND or
V
CC
--
0.01
1
A
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25C ambient.
3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.
4. The test limit for this parameter is 5
A at T
A
= -55C.
A
1
A
2
B
1
B
2
A
1
A
2
B
1
B
2
I = 2
I = 1
A
1
A
2
B
1
B
2
I = 0
DUAL 2-LEVEL
SINGLE 4-LEVEL
Figure 1. Data Loading in 2-Level Operation
NOTE:
1. I = 3 for hold.
4
EXTENDED COMMERCIAL TEMPERATURE RANGE
IDT29FCT520AT/BT/CT/DT
MULTILEVEL PIPELINE REGISTER
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25C ambient.
3. Per TTL driven input (V
IN
= 3.4V). All other inputs at V
CC
or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the I
CC
formula. These limits are guaranteed but not tested.
6. I
C
= I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
I
CC
D
H
N
T
+ I
CCD
(f
CP/
2 + f
i
N
i
)
I
CC
= Quiescent Current
I
CC
= Power Supply Current for a TTL High Input (V
IN
= 3.4V)
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
f
i
= Input Frequency
N
i
= Number of Inputs at f
i
All currents are in milliamps and all frequencies are in megahertz.
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
I
CC
Quiescent Power Supply Current
TTL Inputs HIGH
V
CC
= Max.
V
IN
= 3.4V
(3)
--
0.5
2
mA
I
CCD
Dynamic Power Supply Current
(4)
V
CC
= Max., Outputs Open
OE = GND
One Input Toggling
50% Duty Cycle
V
IN
= V
CC
V
IN
= GND
--
0.15
0.25
mA/
MHz
I
C
Total Power Supply Current
(6)
V
CC
= Max., Outputs Open
f
CP
= 10MHz
50% Duty Cycle
OE = GND
V
IN
= V
CC
V
IN
= GND
--
1.5
3.5
mA
One Bit Toggling
at fi = 5MHz
50% Duty Cycle
V
IN
= 3.4V
V
IN
= GND
--
2
5.5
V
CC
= Max., Outputs Open
f
CP
= 10MHz
50% Duty Cycle
OE = GND
V
IN
= V
CC
V
IN
= GND
--
3.8
7.3
(5)
Eight Bits Toggling
at fi = 2.5MHz
50% Duty Cycle
V
IN
= 3.4V
V
IN
= GND
--
6
16.3
(5)
5
IDT29FCT520AT/BT/CT/DT
MULTILEVEL PIPELINE REGISTER
EXTENDED COMMERCIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
FCT520AT
FCT520BT
FCT520CT
FCT520DT
Symbol
Parameter
Condition
(1)
Min
.
(2)
Max
.
Min
.
(2)
Max
.
Min
.
(2)
Max
.
Min
.
(2)
Max
.
Unit
t
PHL
t
PLH
Propagation Delay
CLK to Yn
C
L
= 50pF
R
L
= 500
2
14
2
7.5
2
6
2
5.2
ns
t
PHL
t
PLH
Propagation Delay
S
0
or S
1
to Yn
2
13
2
7.5
2
6
2
4.8
ns
t
SU
Set-up Time, HIGH or LOW
Dn to CLK
5
--
2.5
--
2.5
--
1.5
--
ns
t
H
Hold Time, HIGH or LOW
Dn to CLK
2
--
2
--
2
--
1
--
ns
t
SU
Set-up Time, HIGH or LOW
I
0
or I
1
to CLK
5
--
4
--
4
--
2
--
ns
t
H
Hold Time, HIGH or LOW
I
0
or I
1
to CLK
2
--
2
--
2
--
1
--
ns
t
PHZ
t
PLZ
Output Disable Time
1.5
12
1.5
7
1.5
6
1.5
4.8
ns
t
PZH
t
PZL
Output Enable Time
1.5
15
1.5
7.5
1.5
6
1.5
4
ns
t
W
Clock Pulse Width
HIGH or LOW
7
--
5.5
--
5.5
--
3
--
ns
NOTES:
1. See Test Curcuits and Waveforms.
2. Minimum values are guaranteed but not tested on Propagation Delays.
6
EXTENDED COMMERCIAL TEMPERATURE RANGE
IDT29FCT520AT/BT/CT/DT
MULTILEVEL PIPELINE REGISTER
Pulse
Generator
R
T
D.U.T.
V
CC
V
IN
C
L
V
OUT
50pF
500
500
7.0V
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
DATA
IN PU T
TIM IN G
IN PU T
ASYN CH R ON OUS C ON TROL
PRES ET
CLEAR
ETC.
SYNC HRO N OU S CON TRO L
t
SU
t
H
t
REM
t
SU
t
H
HIGH-LOW -HIGH
PULSE
LO W -H IGH -LOW
PULSE
t
W
1.5V
1.5V
SAM E PHASE
IN PU T TR ANSITION
3V
1.5V
0V
1.5V
V
OH
t
PLH
OU TPUT
OPPOSITE P HASE
IN PU T TR ANSITION
3V
1.5V
0V
t
PLH
t
PH L
t
PH L
V
OL
CO NTR OL
IN PU T
3V
1.5V
0V
3.5V
0V
OU TPUT
NO RM A LLY
LO W
OU TPUT
NO RM A LLY
HIGH
SW ITC H
CLOSE D
SW ITC H
OPEN
V
OL
0.3V
0.3V
t
PLZ
t
PZL
t
PZH
t
PHZ
3.5V
0V
1.5V
1.5V
ENAB LE
DISA BLE
V
OH
PRES ET
CLEAR
CLOC K ENABLE
ETC.
O ctal lin k
O ctal lin k
O ctal lin k
O ctal lin k
O ctal lin k
TEST CIRCUITS AND WAVEFORMS
PROPAGATION DELAY
TEST CIRCUITS FOR ALL OUTPUTS
ENABLE AND DISABLE TIMES
SET-UP, HOLD, AND RELEASE TIMES
PULSE WIDTH
SWITCH POSITION
Test
Switch
Open Drain
Disable Low
Closed
Enable Low
All Other Tests
Open
8-link
DEFINITIONS:
C
L
= Load capacitance: includes jig and probe capacitance.
R
T
= Termination resistance: should be equal to Z
OUT
of the Pulse
Generator.
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control Disable-
HIGH
2. Pulse Generator for All Pulses: Rate
1.0MHz; t
F
2.5ns; t
R
2.5ns
7
IDT29FCT520AT/BT/CT/DT
MULTILEVEL PIPELINE REGISTER
EXTENDED COMMERCIAL TEMPERATURE RANGE
CORPORATE HEADQUARTERS
for SALES:
2975 Stender Way
800-345-7015 or 408-727-6116
Santa Clara, CA 95054
fax: 408-492-8674
www.idt.com*
*To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
ORDERING INFORMATION
Blank
Com m ercial
P
SO
PY
Q
Plastic DIP (P24-1)
Small Outline IC (SO24-2)
Shrink Sm all Outline Package (SO24-7)
Quarter-size Small Outline Package (SO24-8)
520AT
520BT
520CT
520DT
M ultilevel Pipeline Register
XXXXX
Device Type
X
Package
X
FCT
Process
Tem perature
Range
29
-40C to +85C
XX
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