Texas Instruments 74ACT11257
The 74ACT11257 is designed to multiplex signals from 4-bit data sources to four output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at a high logic level. The 74ACT11257 is characterized for operation from −40°C to 85°C.- Min Voltage : 4.5V
- Max Voltage : 5.5V
- Channels : 4
- Max Operating Temp : 85°C
- Min Operating Temp : -40°C
Source:
Octopart
74ACT11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS053B − JANUARY 1989 − REVISED APRIL 1996 D Inputs Are TTL-Voltage Compatible D 3-State Outputs Interface Directly With System Bus D Flow-Through Architecture Optimizes PCB Layout D Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise D EPICt (Enhanced-Performance Implanted CMOS) 1-mm Process D 500-mA Typical Latch-Up Immunity at 125°C D Provides Bus Interface From Multiple Sources in High-Performance Systems D Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages, and Standard Plastic 300-mil DIPs (N) DB, DW, OR N PACKAGE (TOP VIEW) A /B 1 1Y 2 2Y 3 GND 4 GND 5 GND 6 GND 7 3Y 8 4Y 9 OE 10 20 1A 19 1B 18 2A 17 2B 16 VCC 15 VCC 14 3A 13 3B 12 4A 11 4B description FUNCTION TABLE INPUTS SELECT OE A/B DATA A B OUTPUT Y H X X X Z L L L X L L L H X H L H X L L L H X H H Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.