SN74LS125A BUFFERS Datasheet

SN74LS125A Datasheet, PDF, Equivalent


Part Number

SN74LS125A

Description

QUAD 3-STATE BUFFERS

Manufacture

Motorola

Total Page 5 Pages
Datasheet
Download SN74LS125A Datasheet


SN74LS125A
QUAD 3-STATE BUFFERS
VCC E
DOE
DO
14 13 12 11 10 9
8
SN54/74LS125A
SN54/74LS126A
QUAD 3-STATE BUFFERS
LOW POWER SCHOTTKY
1234567
ED
OE
D O GND
LS125A
VCC E
DOE
DO
14 13 12 11 10 9
8
1234567
ED
OE
D O GND
LS126A
LS125A
TRUTH TABLES
LS126A
INPUTS
INPUTS
ED
OUTPUT
ED
OUTPUT
LL
LH
HX
L
H
(Z)
HL
HH
LX
L
H
(Z)
L = LOW Voltage Level
H = HIGH Voltage Level
X = Don’t Care
(Z) = High Impedance (off)
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA Operating Ambient Temperature Range
IOH Output Current — High
IOL Output Current — Low
54
74
54
74
54
74
54
74
14
1
J SUFFIX
CERAMIC
CASE 632-08
14
1
14
1
N SUFFIX
PLASTIC
CASE 646-06
D SUFFIX
SOIC
CASE 751A-02
ORDERING INFORMATION
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXD SOIC
Min Typ Max Unit
4.5 5.0 5.5
4.75 5.0 5.25
V
– 55 25 125 °C
0 25 70
– 1.0
– 2.6
mA
12 mA
24
FAST AND LS TTL DATA
5-207

SN74LS125A
SN54/74LS125A SN54/74LS126A
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL Input LOW Voltage
54
74
0.7 Guaranteed Input LOW Voltage for
0.8 V All Inputs
VIK
VOH
Input Clamp Diode Voltage
Output HIGH Voltage
54
74
– 0.65
– 1.5
2.4
2.4
V VCC = MIN, IIN = – 18 mA
V VCC = MIN, IOH = MAX, VIN = VIH
V or VIL per Truth Table
VOL
Output LOW Voltage
54, 74
74
0.25 0.4
0.35 0.5
V IOL = 12 mA VCC = VCC MIN,
VIN = VIL or VIH
V IOL = 24 mA per Truth Table
IOZH
IOZL
IIH
Output Off Current HIGH
Output Off Current LOW
Input HIGH Current
20
– 20
20
0.1
IIL Input LOW Current
IOS Short Circuit Current (Note 1)
– 40
LS125A
ICC Power Supply Current
LS126A
– 0.4
–225
20
22
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
µA VCC = MAX, VOUT = 2.4 V
µA VCC = MAX, VOUT = 0.4 V
µA VCC = MAX, VIN = 2.7 V
mA VCC = MAX, VIN = 7.0 V
mA VCC = MAX, VIN = 0.4 V
mA VCC = MAX
VIN = 0 V, VE = 4.5 V
mA VCC = MAX
VIN = 0 V, VE = 0 V
AC CHARACTERISTICS (TA = 25°C)
Symbol
tPLH
tPLH
tPHL
tPHL
tPZH
Parameter
Propagation Delay,
Data to Output
Output Enable Time
to HIGH Level
tPZL
Output Enable Time
to LOW Level
tPHZ
Output Disable Time
from HIGH Level
tPLZ
Output Disable Time
from LOW Level
LS125A
LS126A
LS125A
LS126A
LS125A
LS126A
LS125A
LS126A
LS125A
LS126A
LS125A
LS126A
Min
Limits
Typ
9.0
9.0
7.0
8.0
12
16
15
21
Max
15
15
18
18
20
25
25
35
20
25
20
25
Unit Test Conditions
ns Figure 2
ns Figures 4, 5
ns Figures 3, 5
ns Figures 4, 5
ns FIgures 3, 5
VCC = 5.0 V
CL = 45 pF
RL = 667
VCC = 5.0 V
CL = 5.0 pF
RL = 667
FAST AND LS TTL DATA
5-208


Features QUAD 3-STATE BUFFERS VCC E DOE DO 14 13 12 11 10 9 8 SN54/74LS125A SN54/7 4LS126A QUAD 3-STATE BUFFERS LOW POWER SCHOTTKY 1234567 ED OE D O GND LS1 25A VCC E DOE DO 14 13 12 11 10 9 8 1234567 ED OE D O GND LS126A LS 125A TRUTH TABLES LS126A INPUTS INPU TS ED OUTPUT ED OUTPUT LL LH HX L H (Z) HL HH LX L H (Z) L = LOW Volt age Level H = HIGH Voltage Level X = Do n’t Care (Z) = High Impedance (off) GUARANTEED OPERATING RANGES Symbol Pa rameter VCC Supply Voltage TA Operat ing Ambient Temperature Range IOH Outp ut Current — High IOL Output Current — Low 54 74 54 74 54 74 54 74 14 1 J SUFFIX CERAMIC CASE 632-08 14 1 14 1 N SUFFIX PLASTIC CASE 646-06 D SUFF IX SOIC CASE 751A-02 ORDERING INFORMAT ION SN54LSXXXJ Ceramic SN74LSXXXN Plast ic SN74LSXXXD SOIC Min Typ Max Unit 4 .5 5.0 5.5 4.75 5.0 5.25 V – 55 25 125 °C 0 25 70 – 1.0 – 2.6 mA 1 2 mA 24 FAST AND LS TTL DATA 5-207 SN 54/74LS125A • SN54/74LS126A DC CHARACTERISTICS OVER OPERATIN.
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