M74HC253
DESCRIPTION
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
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP SOP TSSOP
M74HC253B1R M74HC253M1R
T&R
M74HC253RM13TR M74HC253TTR
(n G) can be used to inhibit the data output; the output of M74HC253 is a high impedance while the strobe input is held high. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
1/11
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 mon Data Select Inputs
Data Inputs From Source 1
3 State Multiplexer...
