74AC240M(1997) 查看數據表（PDF） - STMicroelectronics

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74AC240M
(Rev.:1997)

OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (INVERTED)

STMicroelectronics 

74AC240

OCTAL BUS BUFFER

WITH 3 STATE OUTPUTS (INVERTED)

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 240

s IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The AC240 is an advanced CMOS OCTAL BUS

BUFFER (3-STATE) fabricated with sub-micron

silicon gate and double-layer metal wiring C2MOS

technology. It is ideal for low power applications

B

M

(Plastic Package)

(Micro Package)

ORDER CODES :

74AC240B

74AC240M

mantaining high speed operation similar to

equivalent Bipolar Schottky TTL.

G control output governs four BUS BUFFERs.

This device is designed to be used with 3 state

memory address drivers, etc.

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

April 1997

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