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触发器、锁存器和寄存器
D 型锁存器

SN74LV573AT

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具有三态输出的八路透明 D 级锁存器

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数据表

SN74LV573AT

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产品详情

Number of channels 8 Technology family LV-AT Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type TTL-Compatible CMOS Output type 3-State Clock frequency (max) (MHz) 70 IOL (max) (mA) 16 IOH (max) (mA) -16 Supply current (max) (µA) 20 Features Balanced outputs, Flow-through pinout, High speed (tpd 10-50ns), Partial power down (Ioff) Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 8 Technology family LV-AT Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type TTL-Compatible CMOS Output type 3-State Clock frequency (max) (MHz) 70 IOL (max) (mA) 16 IOH (max) (mA) -16 Supply current (max) (µA) 20 Features Balanced outputs, Flow-through pinout, High speed (tpd 10-50ns), Partial power down (Ioff) Operating temperature range (°C) -40 to 85 Rating Catalog
SOIC (DW) 20 131.84 mm² 12.8 x 10.3 TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • Inputs Are TTL-Voltage Compatible
  • 4.5-V to 5.5-V VCC Operation
  • Typical tpd = 5.1 ns at 5 V
  • Typical VOLP (Output Ground Bounce)
    <0.8 V at VCC = 5 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
    >2.3 V at VCC = 5 V, TA = 25°C
  • Supports Mixed-Mode Voltage Operation on All Ports
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • Inputs Are TTL-Voltage Compatible
  • 4.5-V to 5.5-V VCC Operation
  • Typical tpd = 5.1 ns at 5 V
  • Typical VOLP (Output Ground Bounce)
    <0.8 V at VCC = 5 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
    >2.3 V at VCC = 5 V, TA = 25°C
  • Supports Mixed-Mode Voltage Operation on All Ports
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

The SN74LV573AT is an octal transparent D-type latch. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is low, the Q outputs are latched at the logic levels of 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) 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.

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

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.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The SN74LV573AT is an octal transparent D-type latch. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is low, the Q outputs are latched at the logic levels of 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) 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.

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

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.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
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类型 项目标题 下载最新的英语版本 日期
* 数据表 SN74LV573AT 数据表 (Rev. C) 2005年 8月 2日
应用手册 Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 2022年 12月 15日

设计和开发

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评估板

14-24-LOGIC-EVM — 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM

该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。

用户指南: PDF | HTML
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14-24-NL-LOGIC-EVM — 通用 14 至 24 引脚无铅封装评估模块

Flexible EVM designed to support any logic or translation device that has a BQA, BQB, RGY (14-24 pin), RSV, RJW, or RHL package.
用户指南: PDF | HTML
下载英文版本 (Rev.A): PDF | HTML
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仿真模型

SN74LV573AT IBIS Model

SCEM455.ZIP (16 KB) - IBIS Model
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封装 引脚数 下载
SOIC (DW) 20 了解详情
TSSOP (PW) 20 了解详情
应遵守 TI 的评估模块标准条款与条件.

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

支持与培训

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