74AC158 데이터 시트보기 (PDF) - STMicroelectronics

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74AC158

QUAD 2 CHANNEL MULTIPLEXER (INV.)

STMicroelectronics 

74AC158

QUAD 2 CHANNEL MULTIPLEXER (INV.)

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

s LOW POWER DISSIPATION:

ICC = 8 µA (MAX.) at TA = 25 oC

s HIGH NOISE IMMUNITY:

VNIH = VNIL = 28% VCC (MIN.)

s 50Ω 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 158

s IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The AC158 is an high-speed CMOS QUAD

2-CHANNEL MULTIPLEXER (INVERTING)

fabricated with sub-micron silicon gate and

double-layer metal wiring C2MOS technology. It is

ideal for low power applications maintaining high

speed operation similar to equivalent Bipolar

Schottky TTL.

PRELIMINARY DATA

B

M

(Plastic Package)

(Micro Package)

ORDER CODES :

74AC158B

74AC158M

It consists of four 2-input digital multiplexers with

common select and strobe inputs. It is an

inverting multiplexer. When the STROBE input is

held high selection of data is inhibit and all the

outputs become high. The SELECT decoding

determines whether the A or B inputs get routed

to their corresponding Y outputs.

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

May 1997

1/9

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