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SN74ALVCH373 - 产品图解：
SN74ALVCH373-具有三态输出的八路透明 D 类锁存器
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TI产品 - SN74ALVCH373介绍

SN74ALVCH373 - 具有三态输出的八路透明 D 类锁存器

SN74ALVCH373是TI德州仪器公司的一款D类锁存器产品，SN74ALVCH373是具有三态输出的八路透明 D 类锁存器，本站介绍了SN74ALVCH373的封装应用图解、特点和优点、功能等，并给出了与SN74ALVCH373相关的TI元器件型号供参考。

SN74ALVCH373 - 具有三态输出的八路透明 D 类锁存器 - D类锁存器 - 触发器/锁存器/寄存器 - 德州仪器

产品描述

This octal transparent D-type latch is designed for 1.65-V to 3.6-V VCC operation.

The SN74ALVCH373 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the logic levels set up at the D inputs.

A buffered output-enable (OE)\ input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.

OE\ does not affect the internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

产品特性

  • Operates From 1.65 V to 3.6 V
  • Max tpd of 3.3 ns at 3.3 V
  • ±24-mA Output Drive at 3.3 V
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

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