74VHCT20AM datasheet(1/7 Pages) STMICROELECTRONICS

Il numero della parte	74VHCT20AM

Spiegazioni elettronici	DUAL 4-INPUT NAND GATE

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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74VHCT20A

DUAL 4-INPUT NAND GATE

PRELIMINARY DATA

February 2000

s

HIGH SPEED: tPD = 5 ns (TYP.) at VCC =5V

s

LOW POWER DISSIPATION:

ICC =2

µA (MAX.) at TA =25 oC

s

COMPATIBLE WITH TTL OUTPUTS:

VIH =2V (MIN), VIL = 0.8V (MAX)

s

POWER DOWN PROTECTION ON INPUTS &

OUTPUTS

s

SYMMETRICAL OUTPUT IMPEDANCE:

|IOH|=IOL = 8 mA (MIN)

s

BALANCED PROPAGATION DELAYS:

tPLH

≅ tPHL

s

OPERATING VOLTAGE RANGE:

VCC (OPR) = 4.5V to 5.5V

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 20

s

IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The 74VHCT20A is an advanced high-speed

CMOS DUAL 4-INPUT NAND GATE fabricated

with sub-micron silicon gate and double-layer

metal wiring C

2MOS technology.

The internal circuit is composed of 3 stages

including buffer output, which provide high noise

immunity and stable output.

Power down protection is provided on all inputs

and outputs and 0 to 7V can be accepted on

inputs with no regard to the supply voltage. This

device can be used to interface 5V to 3V.

All inputs

and

outputs are

equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

®

SOP

TSSOP

ORDER CODES

PACKAGE

T UBE

T & R

SOP

74VHCT20AM

74VHCT20AMTR

TSSOP

74VHCT20ATTR

1/7

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