74AC20B datasheet(1/7 Pages) STMICROELECTRONICS

部件名	74AC20B

功能描述	DUAL 4-INPUT NAND GATE

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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74AC20

DUAL 4-INPUT NAND GATE

PRELIMINARY DATA

May 1997

s

HIGH SPEED: tPD = 4 ns (TYP.) at VCC =5V

s

LOW POWER DISSIPATION:

ICC =4

µA (MAX.) at TA =25 oC

s

HIGH NOISE IMMUNITY:

VNIH =VNIL = 28% VCC (MIN.)

s

50

Ω TRANSMISSION LINE DRIVING

CAPABILITY

s

SYMMETRICAL OUTPUT IMPEDANCE:

|IOH|= IOL =24 mA (MIN)

s

BALANCED PROPAGATION DELAYS:

tPLH

≅ tPHL

s

OPERATING VOLTAGE RANGE:

VCC (OPR) = 2V to 6V

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 20

s

IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The AC20 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. It is ideal for low

power

applications

mantaining

high

speed

operation similar to equivalent Bipolar Schottky

TTL.

The internal circuit is composed of 3 stages

including buffer output, which enables high noise

immunity and stable output.

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

ORDER CODES :

74AC20B

74AC20M

M

(Micro Package)

B

(Plastic Package)

1/7

类似零件编号 - 74AC20B

制造商	部件名	数据表	功能描述
Fairchild Semiconductor	74AC20	81Kb / 7P	Dual 4-Input NAND Gate
ON Semiconductor	74AC20	122Kb / 8P	Dual 4?묲nput NAND Gate October, 2006 ??Rev. 8
Fairchild Semiconductor	74AC20	99Kb / 7P	Dual 4-Input NAND Gate
STMicroelectronics	74AC20	201Kb / 8P	DUAL 4-INPUT NAND GATE Apr-2001
Fairchild Semiconductor	74AC20MTC	81Kb / 7P	Dual 4-Input NAND Gate

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类似说明 - 74AC20B

制造商	部件名	数据表	功能描述
Motorola, Inc	SN54LS22	121Kb / 4P	DUAL 4-INPUT NAND GATE
NXP Semiconductors	74ALS20A	85Kb / 7P	Dual 4-Input NAND gate 1996 Jul 01
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STMicroelectronics	74VHC20	51Kb / 7P	DUAL 4-INPUT NAND GATE Jun-1999
STMicroelectronics	M74HC20	172Kb / 8P	DUAL 4-INPUT NAND GATE Jul-2001
Fairchild Semiconductor	74AC20	81Kb / 7P	Dual 4-Input NAND Gate
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