Datasheet

ManualsBrandsUnbranded ManualsLogic ICsLogic IC - Buffer, driver SN 74 LS 126 DIP 14

5-1

FAST AND LS TTL DATA

QUAD 3-STATE BUFFERS

LS125A

14 13 12 11 10 9

123456

GND

E DOE DO

DOE

LS126A

14 13 12 11 10 9

123456

GND

EDOE DO

DOED OE

TRUTH TABLES

LS125A LS126A

INPUTS INPUTS

E D OUTPUT E D OUTPUT

L L L H L L

L H H H H H

H X (Z) L X (Z)

L = LOW Voltage Level

H = HIGH Voltage Level

X = Don’t Care

(Z) = High Impedance (off)

GUARANTEED OPERATING RANGES

Symbol Parameter Min Typ Max Unit

Supply Voltage 54

4.5

4.75

5.0

5.5

5.25

Operating Ambient Temperature Range 54

–55

125

°C

Output Current — High 54

–1.0

–2.6

Output Current — Low 54

SN54/74LS125A

SN54/74LS126A

QUAD 3-STATE BUFFERS

LOW POWER SCHOTTKY

ORDERING INFORMATION

SN54LSXXXJ Ceramic

SN74LSXXXN Plastic

SN74LSXXXD SOIC

J SUFFIX

CERAMIC

CASE 632-08

N SUFFIX

PLASTIC

CASE 646-06

D SUFFIX

SOIC

CASE 751A-02

Summary of content (3 pages)

PAGE 1
SN54/74LS125A SN54/74LS126A QUAD 3-STATE BUFFERS VCC E D O E D O 14 13 12 11 10 9 8 QUAD 3-STATE BUFFERS LOW POWER SCHOTTKY 1 2 3 E D O 4 5 6 7 E D O GND LS125A J SUFFIX CERAMIC CASE 632-08 VCC E D O E D O 14 13 12 11 10 9 8 14 1 N SUFFIX PLASTIC CASE 646-06 14 1 1 2 3 4 5 6 7 E D O E D O GND LS126A 14 1 D SUFFIX SOIC CASE 751A-02 TRUTH TABLES LS125A LS126A INPUTS ORDERING INFORMATION INPUTS E D OUTPUT E D OUTPUT L L H L H X L H (
PAGE 2
SN54/74LS125A • SN54/74LS126A DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits S b l Symbol Min P Parameter VIH Input HIGH Voltage VIL Input LOW Voltage VIK Input Clamp Diode Voltage VOH Output HIGH Voltage VOL Output LOW Voltage IOZH IOZL IIH Input HIGH Current IIL Input LOW Current IOS Short Circuit Current (Note 1) ICC Power Supply Current Typ Max 2.0 54 0.7 74 0.8 – 0.65 – 1.
PAGE 3
SN54/74LS125A • SN54/74LS126A VIN VOUT 1.3 V VIN 1.3 V tPLH tPHL 1.3 V 1.3 V 1.3 V 1.3 V tPHL VOUT 1.3 V Figure 1 1.3 V Figure 2 VE VE 1.3 V 1.3 V 1.3 V VE 1.3 V VE tPZL VOUT tPLH tPLZ ≈ 1.3 V 1.3 V tPHZ tPZH 1.3 V VOUT VOL 0.5 V 0.5 V Figure 3 Figure 4 VCC RL SW1 TO OUTPUT UNDER TEST 5 kΩ CL SW2 Figure 5 SWITCH POSITIONS SYMBOL SW1 SW2 tPZH Open Closed tPZL Closed Open tPLZ Closed Closed tPHZ Closed Closed FAST AND LS TTL DATA 5-3 > VOH ≈ 1.