MC74VHCT245A: Octal Bus Transceiver

The MC74VHCT245A is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. It is intended for two-way asynchronous communication between data buses. The direction of data transmission is determined by the level of the DIR input. The output enable pin (OE) can be used to disable the device, so that the buses are effectively isolated.

技术特性
  • High Speed: tPD = 4.0ns (Typ) at VCC = 5V
  • Low Power Dissipation: ICC = 4µA (Max) at TA = 25 C
  • High Noise Immunity: VNIH = VNIL = 28% VCC
  • Power Down Protection Provided on Inputs
  • Balanced Propagation Delays
  • Designed for 2V to 5.5V Operating Range
  • Low Noise: VOLP = 1.2V (Max)
  • Pin and Function Compatible with Other Standard Logic Families
  • Latchup Performance Exceeds 300mA
  • ESD Performance: HBM > 2000V; Machine Model > 200V
  • Chip Complexity: 308 FETs or 77 Equivalent Gates

    APPLICATION NOTES
  • Do not force a signal on an I/O pin when it is an active output, 
    damage may occur.
  • All floating (high impedance) input or I/O pins must be fixed by 
    means of pull up or pull down resistors or bus terminator ICs.
  • A parasitic diode is formed between the bus and VCC terminals. 
    Therefore, the VHC245 cannot be used to interface 5V to 3V systems 
    directly.
  • These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.
封装图 MARKING DIAGRAM

MC74VHCT245A 封装图

订购信息 Ordering Information
产品 状况 Compliance 具体说明 封装 MSL* 容器 预算价格 (1千个数量的单价)
类型 外形 类型 数量
MC74VHCT245ADTG Active
Pb-free
Halide free
Octal Bus Transceiver TSSOP-20 948E-02 1 Tube 75 $0.2667
MC74VHCT245ADTRG Active
Pb-free
Halide free
Octal Bus Transceiver TSSOP-20 948E-02 1 Tape and Reel 2500 $0.2667
MC74VHCT245ADWG Active
Pb-free
Halide free
Octal Bus Transceiver SOIC-20W 751D-05 3 Tube 38 $0.2667
MC74VHCT245ADWRG Active
Pb-free
Halide free
Octal Bus Transceiver SOIC-20W 751D-05 3 Tape and Reel 1000 $0.2667
MC74VHCT245AMELG Last Shipments 
Pb-free
Octal Bus Transceiver SOEIAJ-20 967-01 3 Tape and Reel 2000  
MC74VHCT245ADWR2 Consult Sales Office
Octal Bus Transceiver SOIC-20W 751D-05 1 Tape and Reel 1000  
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概述 文档编号/大小 版本
Octal Bus Transceiver MC74VHCT245A-D(417.0kB) 1