Specification	CD74HC27E

Current - Output High, Low [custom]	5.2 mA
Current - Output High, Low [custom]	5.2 mA
Input Logic Level - High [Max]	4.2 V
Input Logic Level - High [Min]	1.5 V
Input Logic Level - Low [Max]	1.8 V
Input Logic Level - Low [Min]	0.5 V
Logic Type	NOR Gate
Max Propagation Delay @ V, Max CL	16 ns
Mounting Type	Through Hole
Number of Circuits	3
Number of Inputs	3
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-55 °C
Package / Case	14-DIP
Package / Case [x]	0.3 "
Package / Case [y]	7.62 mm
Voltage - Supply [Max]	6 V
Voltage - Supply [Min]	2 V

CD74HC27 Series

3-ch, 3-input, 2-V to 6-V 5.2 mA drive strength NOR gate

Part	Max Propagation Delay @ V, Max CL	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Input Logic Level - Low [Max]	Input Logic Level - Low [Min]	Logic Type	Input Logic Level - High [Min]	Input Logic Level - High [Max]	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Package / Case [x]	Package / Case [y]	Package / Case	Number of Inputs	Number of Circuits	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Package / Case	Package / Case
Texas Instruments SN74HC27D	15 ns	Surface Mount	85 °C	-40 °C	1.8 V	0.5 V	NOR Gate	1.5 V	4.2 V	5.2 mA	5.2 mA	0.154 in	3.9 mm	14-SOIC	3	3	2 V	6 V
Texas Instruments SN74HC27NS	15 ns	Surface Mount	85 °C	-40 °C	1.8 V	0.5 V	NOR Gate	1.5 V	4.2 V	5.2 mA	5.2 mA	0.209 "	5.3 mm	14-SOIC	3	3	2 V	6 V	14-SO
Texas Instruments SN74HC27DR	15 ns	Surface Mount	85 °C	-40 °C	1.8 V	0.5 V	NOR Gate	1.5 V	4.2 V	5.2 mA	5.2 mA	0.154 in	3.9 mm	14-SOIC	3	3	2 V	6 V
Texas Instruments SN74HC27NSR	15 ns	Surface Mount	85 °C	-40 °C	1.8 V	0.5 V	NOR Gate	1.5 V	4.2 V	5.2 mA	5.2 mA	0.209 "	5.3 mm	14-SOIC	3	3	2 V	6 V	14-SO
Texas Instruments CD74HC27E	16 ns	Through Hole	125 °C	-55 °C	1.8 V	0.5 V	NOR Gate	1.5 V	4.2 V	5.2 mA	5.2 mA	0.3 "	7.62 mm	14-DIP	3	3	2 V	6 V
Texas Instruments SN74HC27DBR	15 ns	Surface Mount	85 °C	-40 °C	1.8 V	0.5 V	NOR Gate	1.5 V	4.2 V	5.2 mA	5.2 mA			14-SSOP	3	3	2 V	6 V	14-SSOP	5.3 mm	0.209 "
Texas Instruments CD74HC27MT	16 ns	Surface Mount	125 °C	-55 °C	1.8 V	0.5 V	NOR Gate	1.5 V	4.2 V	5.2 mA	5.2 mA	0.154 in	3.9 mm	14-SOIC	3	3	2 V	6 V
Texas Instruments CD74HC27M96	16 ns	Surface Mount	125 °C	-55 °C	1.8 V	0.5 V	NOR Gate	1.5 V	4.2 V	5.2 mA	5.2 mA	0.154 in	3.9 mm	14-SOIC	3	3	2 V	6 V

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	$ 0.73
		10	$ 0.64
		25	$ 0.60
		100	$ 0.49
		250	$ 0.46
		500	$ 0.39
		1000	$ 0.31
		2500	$ 0.28
		5000	$ 0.26
Texas Instruments	TUBE	1	$ 0.61
		100	$ 0.41
		250	$ 0.32
		1000	$ 0.21

Description

General part information

CD74HC27 Series

This device contains three independent 3-input NOR gates. Each gate performs the Boolean function Y =A + B + Cin positive logic.

Documents

Technical documentation and resources

CD74HC27E

Deep-Dive with AI

CD74HC27E

Deep-Dive with AI

Technical Specifications

CD74HC27 Series

Pricing

Description

CD74HC27 Series

Documents

Signal Switch Data Book (Rev. A)

Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc

Input and Output Characteristics of Digital Integrated Circuits

Implications of Slow or Floating CMOS Inputs (Rev. E)

TI IBIS File Creation, Validation, and Distribution Processes

Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)

Logic Guide (Rev. AB)

Semiconductor Packing Material Electrostatic Discharge (ESD) Protection

Designing With Logic (Rev. C)

Live Insertion

CMOS Power Consumption and CPD Calculation (Rev. B)

LOGIC Pocket Data Book (Rev. B)

CDx4HC27 Triple 3-Input NOR Gates datasheet (Rev. D)

SN54/74HCT CMOS Logic Family Applications and Restrictions

CD74HC27 Series