器件名称:
54AC11027
功能描述:
TRIPLE 3-INPUT POSITIVE-NOR GATES
文件大小:
67.29KB 共5页
简 介:
54AC11027, 74AC11027 TRIPLE 3-INPUT POSITIVE-NOR GATES SCAS019A – JULY 1987 – REVISED APRIL 1993 Flow-Through Architecture Optimizes PCB Layout Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise EPIC (Enhanced-Performance Implanted CMOS) 1-m Process 500-mA Typical Latch-Up Immunity at 125°C Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs 54AC11027 . . . J PACKAGE 74AC11027 . . . D OR N PACKAGE (TOP VIEW) 1A 1Y 2Y GND GND 3Y 3C 3B 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1B 1C 2A VCC VCC 2B 2C 3A description These devices contain three independent 3-input NOR gates. They perform the Boolean functions Y = A + B + C or Y = A S B S C in positive logic. The 54AC11027 is characterized for operation over the full military temperature range of – 55°C to 125°C. The 74AC11027 is characterized for operation from – 40°C to 85°C. FUNCTION TABLE (each gate) INPUTS A H X X L B X H X L C X X H L OUTPUT Y L L L H 54AC11027 . . . FK PACKAGE (TOP VIEW) 1C 1B NC 1A 1Y 4 5 6 7 8 3 2 1 20 19 18 17 16 15 14 9 10 11 12 13 2A VCC NC VCC 2B 2C 3A NC 3B 3C NC – No internal connection logic symbol 1A 1B 1C 2A 2B 2C 3A 3B 3C 1 16 15 14 11 10 9 8 7 6 3Y 3 2Y ≥1 2 1Y logic diagram (positive logic) 1 16 15 14 11 10 9 8 7 1A 1B 1C 2A 2B 2C 3A 3B 3C 2Y GND NC GND 3Y 2 1Y 3 2Y 6 3Y This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown ar……
