74AC11157

ą 74AC11157 QUADRUPLE 2ĆLINE TO 1ĆLINE DATA SELECTOR/MULTIPLEXER ą SCAS183 − D2957, JULY 1989 − REVISED APRIL 1993 Flow-Through Architecture Optimizes PCB Layout Center-Pin VCC and GND Pin Configurations Minimize High-Speed Switching Noise EPIC (Enhanced-Performance Implanted CMOS) 1-µm Process 500-mA Typical Latch-Up Immunity at 125°C Package Options Include Plastic Small-Outline Packages and Standard Plastic 300-mil DIPs description DW OR N PACKAGE (TOP VIEW) A/B 1Y 2Y GND GND GND GND 3Y 4Y G 1 2 3 4 5 6 7 8 9 10 20 1A 19 1B 18 2A 17 2B 16 VCC 15 VCC 14 3A 13 3B 12 4A 11 4B This data selector/multiplexer contains inverters and drivers to supply full data selection to the four output gates. A separate strobe (G) input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The 74AC11157 provides true data. The 74AC11157 is characterized for operation from −40°C to 85°C. FUNCTION TABLE INPUTS OUTPUT G A/B A B Y HXXX L LLLX L L LHX H L HX L L LHXH H logic symbol† 10 G 1 A/B 20 1A 19 1B 18 2A 17 2B 14 3A 13 3B 12 4A 11 4B EN G1 1 MUX 1 2 1Y 3 2Y 8 3Y 9 4Y logic diagram (positive logic) 20 1A 19 1B 18 2A 17 2B 14 3A 13 3B 12 4A 11 4B 10 G 1 A/B 2 1Y 3 2Y 8 3Y 9 4Y † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. EPIC is a trademark of Texas Instruments Incorporated. PRODUCTION DATA information is current as of publication date. Products conform to specifications ...