MILITARY AND COMMERCIAL TEMPERATURE RANGES
AUGUST 1996
1996 Integrated Device Technology, Inc.
5.1
DSC4226/9
1
Integrated Device Technology, Inc.
DESCRIPTION:
The FCT16240T/AT/CT/ET and FCT162240T/AT/CT/ET
16-bit buffer/line drivers are built using advanced
dual metal
CMOS technology. These high-speed, low-power devices
offer bus/backplane interface capability with improved packing
density. The flow-through organization of signal pins simplifies
layout. The three-state controls are designed to operate these
devices in a Quad-Nibble, Dual-Byte or single 16-bit word
mode. All inputs are designed with hysteresis for improved
noise margin.
The FCT16240T/AT/CT/ET are ideally suited for driving
high capacitance loads and low-impedance backplanes. The
output buffers are designed with power off disable capability
to allow "live insertion" of boards when used as backplane
drivers.
The FCT162240T/AT/CT/ET have balanced output drive
with current limiting resistors. This offers low ground bounce,
minimal undershoot, and controlled output fall times reduc-
ing the need for external series terminating resistors. The
FCT162240T/AT/CT/ET are plug-in replacements for
FCT16240T/AT/CT/ET and 54/74ABT16240 for on-board in-
terface applications.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST CMOS 16-BIT
BUFFER/LINE DRIVER
FUNCTIONAL BLOCK DIAGRAM
1
OE
1
A
1
1
A
2
1
A
3
1
A
4
1
Y
1
1
Y
2
1
Y
3
1
Y
4
2
OE
2
A
1
2
A
2
2
A
3
2
A
4
2
Y
1
2
Y
2
2
Y
3
2
Y
4
2541 drw 01
3
OE
3
A
1
3
A
2
3
A
3
3
A
4
3
Y
1
3
Y
2
3
Y
3
3
Y
4
4
OE
4
A
1
4
A
2
4
A
3
4
A
4
4
Y
1
4
Y
2
4
Y
3
4
Y
4
2541 drw 02
IDT54/74FCT16240T/AT/CT/ET
IDT54/74FCT162240T/AT/CT/ET
FEATURES:
Common features:
0.5 MICRON CMOS Technology
High-speed, low-power CMOS replacement for
ABT functions
Typical t
SK
(o) (Output Skew) < 250ps
Low input and output leakage
1
A (max.)
ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
Packages include 25 mil pitch SSOP, 19.6 mil pitch
TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack
Extended commercial range of -40
C to +85
C
V
CC
= 5V
10%
Features for FCT16240T/AT/CT/ET:
High drive outputs (-32mA I
OH
, 64mA I
OL
)
Power off disable outputs permit "live insertion"
Typical V
OLP
(Output Ground Bounce) < 1.0V at
V
CC
= 5V, T
A
= 25
C
Features for FCT162240T/AT/CT/ET:
Balanced Output Drivers:
24mA (commercial),
16mA (military)
Reduced system switching noise
Typical V
OLP
(Output Ground Bounce) < 0.6V at
V
CC
= 5V,T
A
= 25
C
IDT54/74FCT16240T/AT/CT/ET,162240T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
5.1
2
PIN CONFIGURATIONS
2541 drw 03
1
A
1
1
A
2
GND
1
A
3
1
A
4
V
CC
2
A
1
2
A
2
2
A
3
2
A
4
3
A
1
3
A
2
3
A
3
3
A
4
V
CC
4
A
1
4
A
3
4
A
4
4
A
2
GND
GND
GND
2
OE
3
OE
39
29
30
31
32
33
34
35
36
37
38
25
26
27
28
48
47
41
42
43
44
45
46
40
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
11
21
22
23
24
SSOP/
TSSOP/TVSOP
TOP VIEW
SO48-1
SO48-2
SO48-3
GND
1
OE
GND
V
CC
GND
4
OE
4
Y
4
4
Y
3
4
Y
2
4
Y
1
3
Y
4
3
Y
3
3
Y
2
3
Y
1
2
Y
4
2
Y
2
2
Y
1
1
Y
4
1
Y
3
1
Y
1
1
Y
2
V
CC
GND
2
Y
3
1
A
1
1
A
2
GND
1
A
3
1
A
4
V
CC
2
A
1
2
A
2
2
A
3
2
A
4
3
A
1
3
A
2
3
A
3
3
A
4
V
CC
4
A
1
4
A
3
4
A
4
4
A
2
GND
GND
GND
2
OE
3
OE
39
29
30
31
32
33
34
35
36
37
38
25
26
27
28
48
47
41
42
43
44
45
46
40
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
11
21
22
23
24
2541drw 04
CERPACK
TOP VIEW
E48-1
GND
1
OE
GND
V
CC
GND
4
OE
4
Y
4
4
Y
3
4
Y
2
4
Y
1
3
Y
4
3
Y
3
3
Y
2
3
Y
1
2
Y
4
2
Y
2
2
Y
1
1
Y
4
1
Y
3
1
Y
1
1
Y
2
V
CC
GND
2
Y
3
IDT54/74FCT16240T/AT/CT/ET,162240T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
5.1
3
ABSOLUTE MAXIMUM RATINGS
(1)
CAPACITANCE
(T
A
= +25
C, f = 1.0MHz)
FUNCTION TABLE
(1)
PIN DESCRIPTION
2541 lnk 04
2541 tbl 01
NOTE:
1. H = HIGH Voltage Level
X = Don't Care
L = LOW Voltage Level
Z = High Impedance
2541 tbl 02
Symbol
Parameter
(1)
Conditions
Typ.
Max.
Unit
C
IN
Input
Capacitance
V
IN
= 0V
3.5
6.0
pF
C
OUT
Output
Capacitance
V
OUT
= 0V
3.5
8.0
pF
Pin Names
Description
x
OE
3State Output Enable Inputs (Active LOW)
xAx
Data Inputs
x
Y
x
3-State Outputs
Inputs
Outputs
x
OE
OE
xAx
x
Y
Y
x
L
L
H
L
H
L
H
X
Z
NOTE:
1. This parameter is measured at characterization but not tested.
Symbol
Description
Max.
Unit
V
TERM(2)
Terminal Voltage with Respect to
GND
0.5 to +7.0
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
60 to +120 mA
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.
2. All device terminals except FCT162XXXT Output and I/O terminals.
3. Output and I/O terminals for FCT162XXXT.
2541 lnk 03
IDT54/74FCT16240T/AT/CT/ET,162240T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
5.1
4
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: T
A
= 40
C to +85
C, V
CC
= 5.0V
10%; Military: T
A
= 55
C to +125
C, V
CC
= 5.0V
10%
OUTPUT DRIVE CHARACTERISTICS FOR FCT162240T
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 Vcc = 5.0V, +25
C ambient.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. Duration of the condition can not exceed one second.
5. The test limit for this parameter is
5
A at T
A
= 55
C.
2541 lnk 07
2541 lnk 06
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
I
ODL
Output LOW Current
V
CC
= 5V, V
IN
= V
IH
or
V
IL,
V
OUT
= 1.5V
(3)
60
115
200
mA
I
ODH
Output HIGH Current
V
CC
= 5V, V
IN
= V
IH
or V
IL,
V
OUT
= 1.5V
(3)
60
115
200
mA
V
OH
Output HIGH Voltage
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OH
= 16mA MIL.
I
OH
= 24mA COM'L.
2.4
3.3
--
V
V
OL
Output LOW Voltage
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OL
= 16mA MIL.
I
OL
= 24mA COM'L.
--
0.3
0.55
V
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
V
IH
Input HIGH Level
Guaranteed Logic HIGH Level
2.0
--
--
V
V
IL
Input LOW Level
Guaranteed Logic LOW Level
--
--
0.8
V
I
I H
Input HIGH Current (Input pins)
(5)
V
CC
= Max.
V
I
= V
CC
--
--
1
A
Input HIGH Current (I/O pins)
(5)
--
--
1
I
I L
Input LOW Current (Input pins)
(5)
V
I
= GND
--
--
1
Input LOW Current (I/O pins)
(5)
--
--
1
I
OZH
High Impedance Output Current
V
CC
= Max.
V
O
= 2.7V
--
--
1
A
I
OZL
(3-State Output pins)
(5)
V
O
= 0.5V
--
--
1
V
IK
Clamp Diode Voltage
V
CC
= Min., I
IN
= 18mA
--
0.7
1.2
V
I
OS
Short Circuit Current
V
CC
= Max., V
O
= GND
(3)
80
140
225
mA
V
H
Input Hysteresis
--
--
100
--
mV
I
CCL
I
CCH
I
CCZ
Quiescent Power Supply Current
V
CC
= Max., V
IN
= GND or V
CC
--
5
500
A
2541 lnk 05
OUTPUT DRIVE CHARACTERISTICS FOR FCT16240T
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
I
O
Output Drive Current
V
CC
= Max., V
O
= 2.5V
(3)
50
--
180
mA
V
OH
Output HIGH Voltage
V
CC
= Min.
I
OH
= 3mA
2.5
3.5
--
V
V
IN
= V
IH
or V
IL
I
OH
= 12mA MIL.
I
OH
= 15mA COM'L.
2.4
3.5
--
V
I
OH
= 24mA MIL.
I
OH
= 32mA COM'L.
(4)
2.0
3.0
--
V
V
OL
Output LOW Voltage
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OL
= 48mA MIL.
I
OL
= 64mA COM'L.
--
0.2
0.55
V
I
OFF
Input/Output Power Off Leakage
(5)
V
CC
= 0V, V
IN
or V
O
4.5V
--
--
1
A
IDT54/74FCT16240T/AT/CT/ET,162240T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
5.1
5
POWER SUPPLY CHARACTERISTICS
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, +25
C 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
N
CP
/2 + f
i
N
i
)
I
CC
= Quiescent Current (I
CCL
,
I
CCH
and I
CCZ
)
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)
N
CP
= Number of Clock Inputs at f
CP
f
i
= Input Frequency
N
i
= Number of Inputs at f
i
2541 tbl 08
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
1.5
mA
I
CCD
Dynamic Power Supply
Current
(4)
V
CC
= Max.
Outputs Open
x
OE
= GND
One Input Toggling
50% Duty Cycle
V
IN
= V
CC
V
IN
= GND
--
60
100
A/
MHz
I
C
Total Power Supply Current
(6)
V
CC
= Max.
Outputs Open
fi = 10MHz
V
IN
= V
CC
V
IN
= GND
--
0.6
1.5
mA
50% Duty Cycle
x
OE
= GND
One Bit Toggling
V
IN
= 3.4V
V
IN
= GND
--
0.9
2.3
V
CC
= Max.
Outputs Open
fi = 2.5MHz
V
IN
= V
CC
V
IN
= GND
--
2.4
4.5
(5)
50% Duty Cycle
x
OE
= GND
Sixteen Bits Toggling
V
IN
= 3.4V
V
IN
= GND
--
6.4
16.5
(5)
IDT54/74FCT16240T/AT/CT/ET,162240T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
5.1
6
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
NOTES:
2541 tbl 09
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
FCT16240CT/162240CT
FCT16240ET/162240ET
Com'l.
Mil.
Com'l.
Mil.
Symbol
Parameter
Condition
(1)
Min.
(2)
Max.
Min.
(2)
Max.
Min.
(2)
Max.
Min.
(2)
Max.
Unit
t
PLH
t
PHL
Propagation Delay
xAx to x
Y
x
C
L
= 50pF
R
L
= 500
1.5
4.3
1.5
4.7
1.5
3.2
--
--
ns
t
PZH
t
PZL
Output Enable Time
1.5
5.8
1.5
6.5
1.5
4.4
--
--
ns
t
PHZ
t
PLZ
Output Disable Time
1.5
5.2
1.5
5.7
1.5
3.6
--
--
ns
t
SK
(o) Output Skew
(3)
--
0.5
--
0.5
--
0.5
--
--
ns
FCT16240T/162240T
FCT16240AT/162240AT
Com'l.
Mil.
Com'l.
Mil.
Symbol
Parameter
Condition
(1)
Min.
(2)
Max.
Min.
(2)
Max.
Min.
(2)
Max.
Min.
(2)
Max.
Unit
t
PLH
t
PHL
Propagation Delay
xAx to x
Y
x
C
L
= 50pF
R
L
= 500
1.5
8.0
1.5
9.0
1.5
4.8
1.5
5.1
ns
t
PZH
t
PZL
Output Enable Time
1.5
10.0
1.5
10.5
1.5
6.2
1.5
6.5
ns
t
PHZ
t
PLZ
Output Disable Time
1.5
9.5
1.5
10.0
1.5
5.6
1.5
5.9
ns
t
SK
(o) Output Skew
(3)
--
0.5
--
0.5
--
0.5
--
0.5
ns
IDT54/74FCT16240T/AT/CT/ET,162240T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
5.1
7
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
INPUT
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
t
SU
t
H
t
REM
t
SU
t
H
HIGH-LOW-HIGH
PULSE
LOW-HIGH-LOW
PULSE
t
W
1.5V
1.5V
SAME PHASE
INPUT TRANSITION
3V
1.5V
0V
1.5V
V
OH
t
PLH
OUTPUT
OPPOSITE PHASE
INPUT TRANSITION
3V
1.5V
0V
t
PLH
t
PHL
t
PHL
V
OL
CONTROL
INPUT
3V
1.5V
0V
3.5V
0V
OUTPUT
NORMALLY
LOW
OUTPUT
NORMALLY
HIGH
SWITCH
CLOSED
SWITCH
OPEN
V
OL
0.3V
0.3V
t
PLZ
t
PZL
t
PZH
t
PHZ
3.5V
0V
1.5V
1.5V
ENABLE
DISABLE
V
OH
PRESET
CLEAR
CLOCK ENABLE
ETC.
DEFINITIONS:
C
L
=
Load capacitance: includes jig and probe capacitance.
R
T
=
Termination resistance: should be equal to Z
OUT
of the Pulse
Generator.
ENABLE AND DISABLE TIMES
PROPAGATION DELAY
SET-UP, HOLD AND RELEASE TIMES
PULSE WIDTH
SWITCH POSITION
TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS
2541 lnk 10
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
2541 drw 09
2541 drw 07
2541 drw 05
2541 drw 06
2541 drw 08
Test
Switch
Disable Low
Enable Low
Closed
All Other Tests
Open
Open Drain
IDT54/74FCT16240T/AT/CT/ET,162240T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
5.1
8
ORDERING INFORMATION
IDT XX
Temp. Range
XXXX
Device Type
X
Package
X
Process
Blank
B
PV
PA
PF
E
16240T
16240AT
16240CT
16240ET
162240T
162240AT
162240CT
162240ET
Commercial
MIL-STD-883, Class B
Shrink Small Outline Package (SO48-1)
Thin Shrink Small Outline Package (SO48-2)
Thin Very Small Outline Package (SO48-3)
CERPACK (E48-1)
Inverting 16-Bit Buffer/Line Driver
54
74
55
C to +125
C
40
C to +85
C
FCT
2541 drw 10
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