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M74HCT258

QUAD 2 CHANNEL MULTIPLEXER (3-STATE, INVERTING)

STMicroelectronics 

M74HCT258

QUAD 2 CHANNEL MULTIPLEXER (3-STATE, INVERTING)

s HIGH SPEED :

tPD = 17 ns (TYP.) at VCC = 4.5V

s LOW POWER DISSIPATION:

ICC =4µA(MAX.) at TA=25°C

s COMPATIBLE WITH TTL OUTPUTS :

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

s SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 6mA (MIN)

s BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 258

DESCRIPTION

The M74HCT258 is an high speed CMOS QUAD

2 CHANNEL MULTIPLEXER (3-STATE)

fabricated with silicon gate C2MOS technology.

This IC is composed of an independent 2-channel

multiplexer with common SELECT and ENABLE

(OE) input.

The M74HCT258 is an inverting multiplexer.

When the ENABLE input is held ”High”, outputs of

DIP

SOP

TSSOP

ORDER CODES

PACKAGE

TUBE

T &R

DIP

SOP

TSSO P

M74HCT258B1R

M74HCT258M1R M74HCT258RM13TR

M74HCT258TTR

the IC become in a High-Impedance state. If

SELECT input is held low, ”A” data is selected,

when SELECT is high , ”B” data is chosen.

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

August 2001

1/10

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