SN54F157A

SN54F157A, SN74F157A QUADRUPLE 2ĆLINE TO 1ĆLINE DATA SELECTORS/MULTIPLEXERS ą SDFS053A − MARCH 1987 − REVISED OCTOBER 1993 Buffered Inputs and Outputs Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs description The ′F157A is a quadruple 2-input data selector/multiplexer featuring a common strobe (G) input. When the strobe is high, all outputs are low. When the strobe is low, a 4-bit word is selected from one of two sources and is routed to the four outputs. The ′F157A provides true data. The SN54F157A is characterized for operation over the full military temperature range of − 55°C to 125°C. The SN74F157A is characterized for operation from 0°C to 70°C. FUNCTION TABLE INPUTS G A /B A OUTPUT B Y H X X X L L L L X L SN54F157A . . . J PACKAGE SN74F157A . . . D OR N PACKAGE (TOP VIEW) A /B 1 1A 2 1B 3 1Y 4 2A 5 2B 6 2Y 7 GND 8 16 VCC 15 G 14 4A 13 4B 12 4Y 11 3A 10 3B 9 3Y SN54F157A . . . FK PACKAGE (TOP VIEW) VCC G NC A/B 1A 1B 3 2 1 20 19 4 18 4A 1Y 5 17 4B NC 6 16 NC 2A 7 15 4Y 2B 8 14 3A 9 10 11 12 13 3B 3Y NC GND 2Y L L H X H L H X L L L H X H H NC − No internal connection PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright  1993, Texas Instruments...