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单稳态多谐振荡器
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可配置和可编程逻辑 IC
单稳态多谐振荡器

SN74LV123A

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数据表

SN74LV123A

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产品详情

Number of channels 2 Supply voltage (min) (V) 2 Supply voltage (max) (V) 5.5 Technology family LV-A Input type Schmitt-Trigger Output type Push-Pull Supply current (µA) 20 IOL (max) (mA) 12 IOH (max) (mA) -12 Features Balanced outputs, High speed (tpd 10-50ns), Over-voltage tolerant inputs, Partial power down (Ioff), Retriggerable Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 2 Supply voltage (min) (V) 2 Supply voltage (max) (V) 5.5 Technology family LV-A Input type Schmitt-Trigger Output type Push-Pull Supply current (µA) 20 IOL (max) (mA) 12 IOH (max) (mA) -12 Features Balanced outputs, High speed (tpd 10-50ns), Over-voltage tolerant inputs, Partial power down (Ioff), Retriggerable Operating temperature range (°C) -40 to 125 Rating Catalog
SOIC (D) 16 59.4 mm² 9.9 x 6 SOP (NS) 16 79.56 mm² 10.2 x 7.8 SSOP (DB) 16 48.36 mm² 6.2 x 7.8 TSSOP (PW) 16 32 mm² 5 x 6.4 TVSOP (DGV) 16 23.04 mm² 3.6 x 6.4 VQFN (RGY) 16 14 mm² 4 x 3.5
  • 2-V to 5.5-V VCC Operation
  • Maximum tpd of 11 ns at 5 V
  • Typical VOLP (Output Ground Bounce)
    < 0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
    > 2.3 V at VCC = 3.3 V, TA = 25°C
  • Support Mixed-Mode Voltage Operation on
    All Ports
  • Schmitt-Trigger Circuitry on A, B, and CLR Inputs
    for Slow Input Transition Rates
  • Edge Triggered From Active-High or
    Active-Low Gated Logic Inputs
  • Ioff Supports Partial-Power-Down Mode Operation
  • Retriggerable for Very Long Output Pulses,
    up to 100% Duty Cycle
  • Overriding Clear Terminates Output Pulse
  • Glitch-Free Power-Up Reset on Outputs
  • Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class 11
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • 2-V to 5.5-V VCC Operation
  • Maximum tpd of 11 ns at 5 V
  • Typical VOLP (Output Ground Bounce)
    < 0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
    > 2.3 V at VCC = 3.3 V, TA = 25°C
  • Support Mixed-Mode Voltage Operation on
    All Ports
  • Schmitt-Trigger Circuitry on A, B, and CLR Inputs
    for Slow Input Transition Rates
  • Edge Triggered From Active-High or
    Active-Low Gated Logic Inputs
  • Ioff Supports Partial-Power-Down Mode Operation
  • Retriggerable for Very Long Output Pulses,
    up to 100% Duty Cycle
  • Overriding Clear Terminates Output Pulse
  • Glitch-Free Power-Up Reset on Outputs
  • Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class 11
  • 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 ’LV123A devices are dual retriggerable monostable multivibrators designed for 2-V to 5.5-V VCC operation.

These edge-triggered multivibrators feature output pulse-duration control by three methods. In the first method, the A input is low, and the B input goes high. In the second method, the B input is high, and the A input goes low. In the third method, the A input is low, the B input is high, and the clear (CLR) input goes high.

The output pulse duration is programmable by selecting external resistance and capacitance values. The external timing capacitor must be connected between Cext and Rext/Cext (positive) and an external resistor connected between Rext/Cext and VCC. To obtain variable pulse durations, connect an external variable resistance between Rext/Cext and VCC. The output pulse duration also can be reduced by taking CLR low.

The ’LV123A devices are dual retriggerable monostable multivibrators designed for 2-V to 5.5-V VCC operation.

These edge-triggered multivibrators feature output pulse-duration control by three methods. In the first method, the A input is low, and the B input goes high. In the second method, the B input is high, and the A input goes low. In the third method, the A input is low, the B input is high, and the clear (CLR) input goes high.

The output pulse duration is programmable by selecting external resistance and capacitance values. The external timing capacitor must be connected between Cext and Rext/Cext (positive) and an external resistor connected between Rext/Cext and VCC. To obtain variable pulse durations, connect an external variable resistance between Rext/Cext and VCC. The output pulse duration also can be reduced by taking CLR low.
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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 SNx4LV123A Dual Retriggerable Monostable Multivibrators With Schmitt-Trigger Inputs 数据表 (Rev. Q) PDF | HTML 2015年 8月 31日
产品概述 使用离散逻辑的可配置定时复位 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2023年 5月 15日
应用手册 具有响应检测和系统复位功能的控制器 PDF | HTML 英语版 PDF | HTML 2023年 3月 22日
应用手册 使用 SN74LVC1G123 单稳多谐振荡器进行设计 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2021年 7月 20日
选择指南 Logic Guide (Rev. AB) 2017年 6月 12日
选择指南 逻辑器件指南 2014 (Rev. AA) 最新英语版本 (Rev.AB) 2014年 11月 17日

设计和开发

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评估板

14-24-LOGIC-EVM — 采用 14 引脚至 24 引脚 D、DB、DGV、DW、DYY、NS 和 PW 封装的逻辑产品通用评估模块

14-24-LOGIC-EVM 评估模块 (EVM) 设计用于支持采用 14 引脚至 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
英语版 (Rev.B): PDF | HTML
从分销商处购买
评估板

14-24-NL-LOGIC-EVM — 采用 14 引脚至 24 引脚无引线封装的逻辑产品通用评估模块

14-24-EVM 是一款灵活的评估模块 (EVM)，旨在支持具有 14 引脚至 24 引脚 BQA、BQB、RGY、RSV、RJW 或 RHL 封装的任何逻辑或转换器件。

用户指南: PDF | HTML
英语版 (Rev.A): PDF | HTML
从分销商处购买
仿真模型

HSPICE Model for SN74LV123A

SCLJ019.ZIP (111 KB) - HSpice Model
下载
仿真模型

SN74LV123A IBIS Model (Rev. A)

SCEM125A.ZIP (21 KB) - IBIS Model
下载
仿真模型

SN74LV123A PSpice Model (Rev. C)

SCEM569C.ZIP (384 KB) - PSpice Model
下载
封装 引脚 CAD 符号、封装和 3D 模型
SOIC (D) 16 Ultra Librarian
SOP (NS) 16 Ultra Librarian
SSOP (DB) 16 Ultra Librarian
TSSOP (PW) 16 Ultra Librarian
TVSOP (DGV) 16 Ultra Librarian
VQFN (RGY) 16 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

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
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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