Specification	SN74LS27N

Current - Output High, Low [custom]	400 µA
Current - Output High, Low [custom]	8 mA
Input Logic Level - Low	0.8 V
Logic Type	NOR Gate
Max Propagation Delay @ V, Max CL	15 ns
Mounting Type	Through Hole
Number of Circuits	3
Number of Inputs	3
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

SN74LS27 Series

3-ch, 3-input, 4.75-V to 5.25-V bipolar NOR gates

Part	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Package / Case [x]	Package / Case [y]	Package / Case	Voltage - Supply [Min]	Voltage - Supply [Max]	Max Propagation Delay @ V, Max CL	Number of Inputs	Mounting Type	Number of Circuits	Operating Temperature [Max]	Logic Type	Input Logic Level - Low	Current - Quiescent (Max) [Max]	Supplier Device Package
Texas Instruments SN74LS27DE4	400 µA	8 mA	0.154 in	3.9 mm	14-SOIC	4.75 V	5.25 V	15 ns	3	Surface Mount	3	70 °C	NOR Gate	0.8 V
Texas Instruments SN74LS27NSR	400 µA	8 mA	0.209 "	5.3 mm	14-SOIC	4.75 V	5.25 V	15 ns	3	Surface Mount	3	70 °C	NOR Gate	0.8 V	4 mA	14-SO
Texas Instruments SN74LS27DRE4	400 µA	8 mA	0.154 in	3.9 mm	14-SOIC	4.75 V	5.25 V	15 ns	3	Surface Mount	3	70 °C	NOR Gate	0.8 V	4 mA
Texas Instruments SN74LS27N	400 µA	8 mA	0.3 "	7.62 mm	14-DIP	4.75 V	5.25 V	15 ns	3	Through Hole	3	70 °C	NOR Gate	0.8 V
Texas Instruments SN74LS27D	400 µA	8 mA	0.154 in	3.9 mm	14-SOIC	4.75 V	5.25 V	15 ns	3	Surface Mount	3	70 °C	NOR Gate	0.8 V	4 mA

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	$ 1.45
		10	$ 1.29
		25	$ 1.23
		100	$ 1.01
		250	$ 0.94
		500	$ 0.83
		1000	$ 0.66
		2500	$ 0.61
		5000	$ 0.58
LCSC	Piece	1	$ 1.48
		200	$ 0.57
		500	$ 0.55
		1000	$ 0.54
Texas Instruments	TUBE	1	$ 1.18
		100	$ 0.91
		250	$ 0.67
		1000	$ 0.48

Description

General part information

SN74LS27 Series

These devices contain three independent 3-input NOR gates.

The SN5427 and SN54LS27 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN7427 and SN74LS27 are characterized for operation from 0°C to 70°C.

These devices contain three independent 3-input NOR gates.

Documents

Technical documentation and resources

Triple 3-Input Positive-NOR Gates datasheet

Data sheet