MOTOROLA SN74LS126AM, SN74LS126AMEL, SN74LS126AML1, SN74LS126AMR1, SN74LS126AN Datasheet

SN74LS125A SN74LS126A

Quad 3-State Buffers

VCC			E			D					O			E				D		O
14		13				12					11			10				9		8

1				2					3					4				5		6		7
				D					O									D		O		GND
	E														E
										LS125A
VCC				E					D					O				E		D		O
14				13					12					11				10		9		8

1			2				3			4		5		6		7
E			D				O			E		D		O		GND

LS126A

TRUTH TABLES

			LS125A
	INPUTS
			D	OUTPUT
	E
	L		L	L
	L		H	H
H			X	(Z)

LS126A

INPUTS

E	D	OUTPUT
H	L	L
H	H	H
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
VCC	Supply Voltage	4.75	5.0	5.25	V
TA	Operating Ambient	0	25	70	°C
	Temperature Range
IOH	Output Current ± High			± 2.6	mA
IOL	Output Current ± Low			24	mA

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LOW

POWER

SCHOTTKY

14

1

PLASTIC

N SUFFIX

CASE 646

14

1

SOIC

D SUFFIX

CASE 751A

ORDERING INFORMATION

Device	Package	Shipping
SN74LS125AN	14 Pin DIP	2000 Units/Box
SN74LS125AD	14 Pin	2500/Tape & Reel
SN74LS126AN	14 Pin DIP	2000 Units/Box
SN74LS126AD	14 Pin	2500/Tape & Reel

Semiconductor Components Industries, LLC, 1999	1	Publication Order Number:
December, 1999 ± Rev. 6		SN74LS125A/D

SN74LS125A SN74LS126A

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				0.8	V	Guaranteed Input LOW Voltage for
							All Inputs
VIK	Input Clamp Diode Voltage			± 0.65	± 1.5	V	VCC = MIN, IIN = ± 18 mA
VOH	Output HIGH Voltage		2.4			V	VCC = MIN, IOH = MAX, VIN = VIH
							or VIL per Truth Table
				0.25	0.4	V	I = 12 mA	VCC = VCC MIN,
VOL	Output LOW Voltage						OL	VIN = VIL or VIH
				0.35	0.5	V	IOL = 24 mA
								per Truth Table
IOZH	Output Off Current HIGH				20	μA	VCC = MAX, VOUT = 2.4 V
IOZL	Output Off Current LOW				± 20	μA	VCC = MAX, VOUT = 0.4 V
IIH	Input HIGH Current				20	μA	VCC = MAX, VIN = 2.7 V
					0.1	mA	VCC = MAX, VIN = 7.0 V
IIL	Input LOW Current				± 0.4	mA	VCC = MAX, VIN = 0.4 V
IOS	Short Circuit Current (Note 1)		± 40		±225	mA	VCC = MAX
ICC	Power Supply Current	LS125A			20	mA	VCC = MAX	VIN = 0 V, VE = 4.5 V
		LS126A			22			VIN = 0 V, VE = 0 V

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
Symbol	Parameter		Min	Typ	Max	Unit	Test Conditions
tPLH		LS125A		9.0	15
tPLH	Propagation Delay,	LS126A		9.0	15	ns	Figure 2
tPHL	Data to Output	LS125A		7.0	18
tPHL		LS126A		8.0	18			VCC = 5.0 V
								CL = 45 pF
		LS125A		12	20
tPZH	Output Enable Time					ns	Figures 4, 5	RL = 667 Ω
	to HIGH Level	LS126A		16	25
tPZL	Output Enable Time	LS125A		15	25	ns	Figures 3, 5
	to LOW Level	LS126A		21	35
tPHZ	Output Disable Time	LS125A			20	ns	Figures 4, 5
	from HIGH Level	LS126A			25			VCC = 5.0 V
								CL = 5.0 pF
		LS125A			20
tPLZ	Output Disable Time					ns	FIgures 3, 5	RL = 667 Ω
	from LOW Level	LS126A			25

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