M74HC154M1R datasheet(1/8 Pages) STMICROELECTRONICS

Il numero della parte	M74HC154M1R

Spiegazioni elettronici	4 TO 16 LINE DECODER/DEMULTIPLEXER

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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M74HC154

October 1993

4 TO 16 LINE DECODER/DEMULTIPLEXER

B1R

(Plastic Package)

ORDER CODES :

M74HC154B1R

M74HC154M1R

M1R

(Micro Package)

PIN CONNECTIONS (top view)

NC =

No Internal

Connection

DESCRIPTION

.

HIGH SPEED

.

tPD = 15 ns (TYP.) at VCC =5 V

.

LOW POWER DISSIPATION

ICC =4

µA (MAX.) at TA =25 °C

.

HIGH NOISE IMMUNITY

VNIH =VNIL =28 % VCC (MIN.)

.

OUTPUT DRIVE CAPABILITY

15 LSTTL LOADS

.

SYMMETRICAL OUTPUT IMPEDANCE

IOH =IOL = 4 mA (MIN.)

.

BALANCED PROPAGATION DELAYS

tPLH =tPHL

.

WIDE OPERATING VOLTAGE RANGE

VCC (OPR) = 2 V to 6 V

.

PIN AND FUNCTION COMPATIBLE

WITH 54/74LS154

The 74HC154 is a high speed CMOS 4 TO 16-LINE

DECODER/DEMULTIPLEXER fabricated in silicon

gate C

2MOS technology. It has the same high speed

performance of LSTTL combined with true CMOS low

power consumption.

A binary code applied to the four inputs (A to D) pro-

vides a low level at the selected one of sixteen outputs

excluding the other fifteen outputs, when both the

strobe inputs, G1 and G2, are held low. When either

strobe input is held high, the decording function is in-

hibited to keep all outputs high. The strobe function

makes it easy to expand the decoding lines through

cascading, and simplifies the design of address de-

coding circuits in memory control systems.

All inputs are equipped with protection circuits against

static discharge and transient excess voltage.

1/8

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