器件名称: 54ACT11021
功能描述: DUAL 4-INPUT POSITIVE-AND GATES
文件大小: 68.39KB 共5页
简 介:54ACT11021, 74ACT11021 DUAL 4-INPUT POSITIVE-AND GATES
SCAS012B – D2957, JULY 1987 – REVISED APRIL 1993
Inputs Are TTL-Voltage Compatible Flow-Through Architecture Optimizes PCB Layout Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise EPIC t (Enhanced-Performance Implanted CMOS) 1-mm Process 500-mA Typical Latch-Up Immunity at 125°C Package Options Include Plastic SmallOutline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs
54ACT11021 . . . J PACKAGE 74ACT11021 . . . D OR N PACKAGE (TOP VIEW)
1B 1A 1Y GND 2Y 2D 2C
1 2 3 4 5 6 7
14 13 12 11 10 9 8
NC 1C 1D VCC 2A 2B NC
These devices contain two independent 4-input AND gates. They perform the Boolean functions Y = ASBSCSD or Y = A + B + C + D in positive logic. The 54ACT11021 is characterized for operation over the full military temperature range of – 55°C to 125°C. The 74ACT11021 is characterized for operation from – 40°C to 85°C.
FUNCTION TABLE (each gate) INPUTS A H L X X X B H X L X X C H X X L X D H X X X L OUTPUT Y H L L L L
NC NC 1B NC 1A
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
1C 1D NC V CC 2A 2B NC NC NC 2C
NC – No internal connection
description
54ACT11021 . . . FK PACKAGE (TOP VIEW)
logic diagram (positive logic)
1A 1B 1C 1D 2A 2B 2C 2D 3 1Y
1Y GND NC 2Y 2D
1Y 2Y 5 2Y
Copyright 1993, Texas Instruments Incorporated
logic symbol
1A 1B 1C 1D 2A 2B 2C 2D 2 1 13 12 10 9 7 6 &
This symbol is in accordance with ANSI/IEEE Std 91-1984 ……
