器件名称: 74VHCT240AMTC
功能描述: Octal Buffer/Line Driver with 3-STATE Outputs
文件大小: 85.59KB 共7页
简 介:74ACT11240 OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
SCAS210A – MAY 1987 – REVISED APRIL 1996
D D D D D D
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 Small-Outline (DW) and Shrink Small-Outline (DB) Packages, and Standard Plastic 300-mil DIPs (NT)
DB, DW, OR NT PACKAGE (TOP VIEW)
1Y1 1Y2 1Y3 1Y4 GND GND GND GND 2Y1 2Y2 2Y3 2Y4
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
1OE 1A1 1A2 1A3 1A4 VCC VCC 2A1 2A2 2A3 2A4 2OE
description
This octal buffer or line driver is designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. This device provides inverting outputs and symmetrical active-low output-enable (OE) inputs. This device features high fan-out and improved fan-in. The 74ACT11240 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE (each buffer) INPUTS OE L L H A H L X OUTPUT Y L H Z
logic symbol
1OE 1A1 1A2 1A3 1A4 24 23 22 21 20 EN 1 1 2 3 4 1Y1 1Y2 1Y3 1Y4 2OE 2A1 2A2 2A3 2A4 13 17 16 15 14 EN 1 9 10 11 12 2Y1 2Y2 2Y3 2Y4
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Please be aware that an important notice concerning availability, standard warrant……
