Integrated Circuits (ICs)

SN74128N

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Texas Instruments

SINGLE 4-INPUT, 4.75-V TO 5.25-V BIPOLAR NOR GATE

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DocumentsLine Drivers datasheet

Integrated Circuits (ICs)

SN74128N

Active

Texas Instruments

SINGLE 4-INPUT, 4.75-V TO 5.25-V BIPOLAR NOR GATE

Deep-Dive with AI

DocumentsLine Drivers datasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	SN74128N

Current - Output High, Low [custom]	42.4 mA
Current - Output High, Low [custom]	48 mA
Current - Quiescent (Max) [Max]	21 mA
Input Logic Level - Low	0.8 V
Logic Type	NOR Gate
Max Propagation Delay @ V, Max CL	18 ns
Mounting Type	Through Hole
Number of Circuits	4
Number of Inputs	2
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	14-DIP
Package / Case [x]	0.3 "
Package / Case [y]	7.62 mm
Voltage - Supply [Max]	5.25 V
Voltage - Supply [Min]	4.75 V

SN74128 Series

Single 4-input, 4.75-V to 5.25-V bipolar NOR gate

Part	Package / Case	Package / Case [y]	Package / Case [x]	Number of Inputs	Voltage - Supply [Min]	Voltage - Supply [Max]	Input Logic Level - Low	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Mounting Type	Current - Quiescent (Max) [Max]	Max Propagation Delay @ V, Max CL	Operating Temperature [Max]	Operating Temperature [Min]	Number of Circuits	Logic Type	Supplier Device Package
Texas Instruments SN74128NS
Texas Instruments SN74128N	14-DIP	7.62 mm	0.3 "	2	4.75 V	5.25 V	0.8 V	42.4 mA	48 mA	Through Hole	21 mA	18 ns	70 °C	0 °C	4	NOR Gate
Texas Instruments SN74128NSR	14-SOIC	5.3 mm	0.209 "	2	4.75 V	5.25 V	0.8 V	42.4 mA	48 mA	Surface Mount		18 ns	70 °C	0 °C	4	NOR Gate	14-SO
Texas Instruments SN74128D	14-SOIC	3.9 mm	0.154 in	2	4.75 V	5.25 V	0.8 V	42.4 mA	48 mA	Surface Mount		18 ns	70 °C	0 °C	4	NOR Gate

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 3.37
		10	$ 3.02
		25	$ 2.86
		100	$ 2.48
		250	$ 2.35
		500	$ 2.11
		1000	$ 1.78
		2500	$ 1.69
		5000	$ 1.63
Newark	Each	1	$ 4.18
		10	$ 3.93
		25	$ 3.72
		50	$ 3.56
		100	$ 3.41
		250	$ 3.24
		500	$ 3.18
Texas Instruments	TUBE	1	$ 2.92
		100	$ 2.56
		250	$ 1.80
		1000	$ 1.45

Description

General part information

SN74128 Series

These devices contain four independent 2-input-NOR line drivers. They perform the Boolean function Y = A + B\ or Y = A\ · B\. The SN54128 is designed to drive 75 ohm lines. The SN74128 is designed to drive 50 ohm lines.

The SN54128 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74128 is characterized for operation from 0°C to 70°C.

Documents

Technical documentation and resources

Line Drivers datasheet

Data sheet