M74HC253 - STMicroelectronics

M74HC253 DUAL 4-CHANNEL MULTIPLEXER

The M74HC253 is an high speed CMOS DUAL 4 CHANNEL MULTIPLEXER fabricated with silicon gate C2MOS technology. Each of these data (1C0-1C3, 2C0-2C3) is selected by the two address inputs A and B. Separate strobe inputs (1G, 2G) are provided for each of the two four-line sections. The strobe input DIP SOP TSSOP ORDER CODES PACKAGE TUBE DIP SOP TSSOP M74.

Features

ts against static discharge and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/11 M74HC253 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1, 15 14, 2 6, 5, 4, 3 7, 9 10, 11, 12, 13 8 16 SYMBOL NAME AND FUNCTION 1G, 2G A, B 1C0 to 1C3 1Y, 2Y 2C0 to 2C3 GND VCC Output Enable Inputs Common Data Select Inputs Data Inputs From Source 1 3 State Multiplexer Outputs Data Inputs From Source 2 Ground (0V) Positive Supply Voltage TRUTH TABLE SELECT INPUTS DATA INPUTS STROBE OUTPUT Y B A C0 C1 C2 C3 G X X X X X X H Z L L L X X X .