P54FCT240/74FCT240
OCTAL BUFFER/LINE DRIVER WITH
3-STATE OUTPUTS
FEATURES
Function, Pinout and Drive Compatible with the
FCT and F Logic
FCT-A speed at 5.1ns max (MIL)
Output levels compatible with TTL and CMOS
Edge-rate control circuitry for significantly im-
proved noise characteristics
ESD protection exceeds 2000V
Power-off disable feature
Matched rise and fall times
Fully compatible with TTL input and output logic
levels
48 mA sink current, 12 mA source current (MIL)
DESCRIPTIOn
The P54/74FCT240 is an inverting octal buffer and line
driver designed to be employed as memory address driv-
ers, clock drivers and bus-oriented transmitters/receivers.
The device provides speed and drive capabilities equivalent
to the fastest bipolar logic counterparts while reducing
power dissipation by using advanced CMOS technoloy.
The input and output voltage levels allow direct interface
with TTL, NMOS and CMOS devices without external
components.
FUnCTIOnAL BLOCk DIAgRAM
PIn COnFIgURATIOnS
DIP (D2)
LCC (L2)
Document #
LOGIC103
REV OR
Created December 2015
P54FCT240 / P74FCT240 - OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
MAxIMUM RATIngS
(1,2)
Sym
T
STG
T
A
V
CC
P
T
I
OUTPUT
V
IN
V
OUT
Parameter
Storage Temperature
Ambient Temperature Under
Bias
V
CC
Potentional to Ground
Power Dissipation
Current Applied to Output
Input Voltage
Voltage Applied to Output
Value
-65 to +150
-65 to +135
-0.5 to +7.0
0.5
120
-0.5 to +7.0
-0.5 to +7.0
Unit
°C
°C
V
W
mA
V
V
RECOMMEnDED OPERATIng COnDITIOnS
grade
Military
Industrial
Ambient Temp
-55°C to +125°C
0°C to +85°C
gnD
0V
0V
V
CC
5.0V ± 10%
5.0V ± 5%
CAPACITAnCES
Sym
C
IN
C
OUT
Parameter
(V
CC
= 5.0V, T
A
= 25°C, f = 1.0MHz)
Conditions
V
IN
= 0V
V
OUT
= 0V
Typ
6
8
Unit
pF
pF
Input Capacitance
Output Capacitance
DC ELECTRICAL CHARACTERISTICS
Sym
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
I
I
V
IC
V
H
I
CC
(Over Recommended Operating Temperature & Supply Voltage)
Parameter
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
High Impedance Output Current
Input HIGH Current
Clamp Diode Voltage
Input Hysteresis
Quiescent Power Supply Current
V
CC
= Max, V
IN
= GND or V
CC
V
CC
= Min, V
IN
= V
IH
or V
IL
V
OH
Output HIGH Voltage
V
CC
= Min, V
IN
= V
IH
or V
IL
V
OL
I
OS
∆I
CC
I
CCD
I
CCH
I
CCL
I
CLZ
Output LOW Voltage
Short Circuit Current
Quiescent Power Supply Current (TTL inputs)
Dynamic Power Supply Current
Quiescent supply current, outputs high
Quiescent supply current, outputs low
Quiescent supply current, outputs three-state
V
CC
= Min, V
IN
= V
IH
or V
IL
V
CC
= Max, V
O
= GND
V
CC
= Max, V
IN
= 3.4V, f
1
= 0, Outputs open
3
V
CC
= Max, One input toggling, 50% Duty cycle,
Outputs open,
OE
A
=
OE
B
= GND, OE
B
= V
CC
, V
IN
≤ 0.2V or V
IN
≥ V
CC
- 0.2V
OE
A
=
OE
B
=
GND
For all other inputs,
V
IN
= V
CC
or GND
OE
A
=
OE
B
= V
CC
For all other inputs,
V
IN
= V
CC
or GND
I
OH
=-6mA (MIL)
I
OH
=-8mA (IND)
I
OH
=-12mA (MIL)
I
OH
=-15mA (IND)
I
OL
= 48mA (MIL)
I
OL
= 64mA (IND)
-60
2.4
V
CC
= Max, V
I
= 2.7V
V
CC
= Max, V
I
= 0.5V
V
CC
= Max, V
O
= 2.7 V
V
CC
= Max, V
O
= 0.5 V
V
CC
= Max, V
I
= V
CC
(Max)
V
CC
= Min, I
IN
= -18mA
-0.7
200
0.01
4.3
1
Test Conditions
Min
2.0
Typ
Max
0.8
±1
±1
±1
±1
±1
-1.2
Unit
V
V
µA
µA
µA
µA
µA
V
mV
mA
V
2.4
4.0
V
0.3
-120
0.5
0.15
1.5
1.5
1.5
0.55
-225
2.0
0.25
V
mA
mA
mA/
mHz
mA
mA
mA
notes:
1. Operation beyond the limits set forth in the above table may impair
the useful life of the device. Unless otherwise noted, these limits are
over the operating free-air temperature range.
2. Unused inputs must always be connected to an appropriate logic
voltage level, preferably either V
CC
or ground.
3.
Per TTL driven input (V
IN
=3.4V); all other inputs at V
CC
or GND.
Document #
LOGIC103
REV OR
Page 2
P54FCT240 / P74FCT240 - OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
DC ELECTRICAL CHARACTERISTICS
(Over Operating Range)
Sym
Parameter
Test Conditions
V
CC
= Max,
Outputs open,
fi = 10MHz,
50% Duty cycle,
OE
A
=
OE
B
= GND,
One bit toggling
I
C
Total Power Supply Current
V
CC
= Max,
Outputs open,
fi = 2.5MHz,
50% Duty cycle,
OE
A
=
OE
B
= GND,
Eight bits toggling
V
IN
= V
CC
V
IN
= GND
V
IN
= 3.4V
3
6
V
IN
= V
CC
V
IN
= GND
V
IN
= 3.4V
V
IN
= GND
Min
Typ
1.5
Max
3.5
Unit
1.8
4.5
mA
V
IN
= GND
5
14
AC CHARACTERISTICS
(Over Operating Range for FCT240)
54/74FCT240
Sym
Parameter
Condition
Min
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation Delay
D
X
to O
X
Output Enable Time
C
L
= 50pF
R
L
= 500Ω
1.5
Ind
Max
6.5
Min
1.5
Mil
Max
7
Min
1.5
54/74FCT240A
Ind
Max
4.8
Min
1.5
Mil
Max
5.1
ns
Unit
1.5
8.0
1.5
8.5
1.5
6.2
1.5
6.5
ns
Output Disable Time
1.5
7.0
1.5
7.5
1.5
5.6
1.5
5.9
ns
Test
Open Drain
Disable Low
Enable Low
All Other Tests
Switch
Closed
Open
Document #
LOGIC103
REV OR
Page 3
P54FCT240 / P74FCT240 - OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
EnABLE/DISABLE TIMES
PROPAgATIOn DELAY
PIn DESCRIPTIOn
Pin names
OE
A
,
OE
B
Dxx
Oxx
Description
3-State Output Enable Inputs (Active LOW)
Inputs
Outputs
FUnCTIOn TABLE
Inputs
OE
A
L
L
H
H = High Voltage Level
X = Don't Care
L = Low Voltage Level
Z = High Impedance
Outputs
D
L
H
X
OE
B
L
L
H
240
H
L
Z
ORDERIng InFORMATIOn
Document #
LOGIC103
REV OR
Page 4
P54FCT240 / P74FCT240 - OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
Pkg #
# Pins
Symbol
A
b
b2
C
D
E
eA
e
L
Q
S1
Min
-
0.014
0.045
0.008
-
0.220
D2
20 (300 mil)
Max
0.200
0.026
0.065
0.018
1.060
0.310
SIDEBRAZED DUAL InLInE PACkAgE
0.300 BSC
0.100 BSC
0.125
0.015
0.005
0°
0.200
0.070
-
15°
α
Pkg #
# Pins
Symbol
A
A1
B1
D/E
D1/E1
D2/E2
D3/E3
e
h
j
L
L1
L2
ND
NE
Min
0.060
0.050
0.022
0.342
L2
20
Max
0.075
0.065
0.028
0.358
SQUARE LEADLESS CHIP CARRIER
0.200 BSC
0.100 BSC
-
0.358
0.050 BSC
0.040 REF
0.020 REF
0.045
0.045
0.075
5
5
0.055
0.055
0.095
Document #
LOGIC103
REV OR
Page 5
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