SN54/74LS37 QUAD 2-INPUT NAND BUFFER
QUAD 2-INPUT NAND BUFFER VCC 14
1
LOW POWER SCHOTTKY 13
2
12
11
3
4
10
5
9
6
8
J SUFFIX CERAMIC CASE 632-08
7 14
GND
1
N SUFFIX PLASTIC CASE 646-06
14 1
14 1
D SUFFIX SOIC CASE 751A-02
ORDERING INFORMATION SN54LSXXJ SN74LSXXN SN74LSXXD
Ceramic Plastic SOIC
GUARANTEED OPERATING RANGES Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54 74
4.5 4.75
5.0 5.0
5.5 5.25
V
TA
Operating Ambient Temperature Range
54 74
– 55 0
25 25
125 70
°C
IOH
Output Current — High
54, 74
– 1.2
mA
IOL
Output Current — Low
54 74
12 24
mA
FAST AND LS TTL DATA 5-1
SN54/74LS37 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits S b l Symbol VIH
Input HIGH Voltage
VIL
Input LOW Voltage
VIK
Input Clamp Diode Voltage
VOH
Output HIGH Voltage
VOL
Output LOW Voltage
IIH
Input HIGH Current
IIL
Input LOW Current
IOS
Short Circuit Current (Note 1)
ICC
Min
P Parameter
Typ
Max
2.0 54
0.7
74
0.8 – 0.65
– 1.5
U i Unit
T Test C Conditions di i
V
Guaranteed Input HIGH Voltage for All Inputs
V
Guaranteed Input p LOW Voltage g for All Inputs
V
VCC = MIN, IIN = – 18 mA
54
2.5
3.5
V
74
2.7
3.5
V
VCC = MIN,, IOH = MAX,, VIN = VIH or VIL per Truth Table
54, 74
0.25
0.4
V
IOL = 12 mA
74
0.35
0.5
V
IOL = 24 mA
VCC = VCC MIN, VIN = VIL or VIH per Truth Table
20
µA
VCC = MAX, VIN = 2.7 V
0.1
mA
VCC = MAX, VIN = 7.0 V
– 0.4
mA
VCC = MAX, VIN = 0.4 V
–130
mA
VCC = MAX
Power Supply Current Total, Output HIGH
2.0
mA
VCC = MAX
Total, Output LOW
12
– 30
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (TA = 25°C) Limits S b l Symbol
P Parameter
Min
Typ
Max
U i Unit
T Test C Conditions di i VCC = 5.0 V,, RL = 667 Ω CL = 45 pF
tPLH
Turn-Off Delay, Input to Output
12
24
ns
tPHL
Turn-On Delay, Input to Output
12
24
ns
FAST AND LS TTL DATA 5-2