M74HC21T View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M74HC21T

DUAL 4-INPUT AND GATE

STMicroelectronics 

M74HC21

DUAL 4-INPUT AND GATE

s HIGH SPEED:

tPD = 11ns (TYP.) at VCC = 6V

s LOW POWER DISSIPATION:

ICC = 1µA(MAX.) at TA=25°C

s HIGH NOISE IMMUNITY:

VNIH = VNIL = 28 % VCC (MIN.)

s SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 4mA (MIN)

s BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s WIDE OPERATING VOLTAGE RANGE:

VCC (OPR) = 2V to 6V

s PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 21

DESCRIPTION

The M74HC21 is an high speed CMOS DUAL

4-INPUT AND GATE fabricated with silicon gate

C2MOS technology.

The internal circuit is composed of 3 stages

including buffer output, which enables high noise

immunity and stable output.

DIP

SOP

TSSOP

ORDER CODES

PACKAGE

TUBE

DIP

SOP

TSSOP

M74HC21B1R

M74HC21M1R

T&R

M74HC21RM13TR

M74HC21TTR

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

August 2001

1/8

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