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Multivibrator one-shots

SN74LVC1G123

現行

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產品規格表

SN74LVC1G123

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 5.5 Technology family LVC Input type Schmitt-Trigger Output type Push-Pull Supply current (µA) 20 IOL (max) (mA) 32 IOH (max) (mA) -32 Features Balanced outputs, High speed (tpd 10-50ns), Over-voltage tolerant inputs, Partial power down (Ioff) Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 1 Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 5.5 Technology family LVC Input type Schmitt-Trigger Output type Push-Pull Supply current (µA) 20 IOL (max) (mA) 32 IOH (max) (mA) -32 Features Balanced outputs, High speed (tpd 10-50ns), Over-voltage tolerant inputs, Partial power down (Ioff) Operating temperature range (°C) -40 to 125 Rating Catalog
DSBGA (YZP) 8 2.8125 mm² 2.25 x 1.25 SSOP (DCT) 8 11.8 mm² 2.95 x 4 VSSOP (DCU) 8 6.2 mm² 2 x 3.1
  • Available in the Texas Instruments
    NanoFree™ Package
  • Supports 5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 8 ns at 3.3 V
  • Supports Mixed-Mode Voltage Operation on
    All Ports
  • Supports Down Translation to VCC
  • Schmitt-Trigger Circuitry on A and B Inputs for
    Slow Input Transition Rates
  • Edge Triggered From Active-High or Active-Low
     Gated Logic Inputs
  • Retriggerable for Very Long Output Pulses, Up to
    100% Duty Cycle
  • Overriding Clear Terminates Output Pulse
  • Glitch-Free Power-Up Reset on Outputs
  • Ioff Supports Live Insertion, Partial-Power-Down
    Mode, and Back-Drive Protection
  • 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)
  • Available in the Texas Instruments
    NanoFree™ Package
  • Supports 5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 8 ns at 3.3 V
  • Supports Mixed-Mode Voltage Operation on
    All Ports
  • Supports Down Translation to VCC
  • Schmitt-Trigger Circuitry on A and B Inputs for
    Slow Input Transition Rates
  • Edge Triggered From Active-High or Active-Low
     Gated Logic Inputs
  • Retriggerable for Very Long Output Pulses, Up to
    100% Duty Cycle
  • Overriding Clear Terminates Output Pulse
  • Glitch-Free Power-Up Reset on Outputs
  • Ioff Supports Live Insertion, Partial-Power-Down
    Mode, and Back-Drive Protection
  • 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)

The SN74LVC1G123 device is a single retriggerable monostable multivibrator designed for 1.65-V to 5.5-V VCC operation.

This monostable multivibrator features 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 programmed 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.

Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse. The A and B inputs have Schmitt triggers with sufficient hysteresis to handle slow input transition rates with jitter-free triggering at the outputs.

The SN74LVC1G123 device is a single retriggerable monostable multivibrator designed for 1.65-V to 5.5-V VCC operation.

This monostable multivibrator features 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 programmed 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.

Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse. The A and B inputs have Schmitt triggers with sufficient hysteresis to handle slow input transition rates with jitter-free triggering at the outputs.
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類型 標題 日期
* Data sheet SN74LVC1G123 Single Retriggerable Monostable Multivibrator With Schmitt-Trigger Inputs datasheet (Rev. D) PDF | HTML 2015年 6月 22日
Product overview Configurable Timed Reset Using Discrete Logic (Rev. A) PDF | HTML 2023年 5月 2日
Application note The Davies Sinusoidal Generator PDF | HTML 2022年 10月 31日
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 2021年 7月 26日
Application note Designing With the SN74LVC1G123 Monostable Multivibrator (Rev. A) PDF | HTML 2020年 3月 13日
Selection guide Little Logic Guide 2018 (Rev. G) 2018年 7月 6日
Selection guide Logic Guide (Rev. AB) 2017年 6月 12日
Application note How to Select Little Logic (Rev. A) 2016年 7月 26日
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015年 12月 2日
User guide LOGIC Pocket Data Book (Rev. B) 2007年 1月 16日
Product overview Design Summary for WCSP Little Logic (Rev. B) 2004年 11月 4日
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004年 7月 8日
Application note Selecting the Right Level Translation Solution (Rev. A) 2004年 6月 22日
User guide Signal Switch Data Book (Rev. A) 2003年 11月 14日
Application note Use of the CMOS Unbuffered Inverter in Oscillator Circuits 2003年 11月 6日
User guide LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B) 2002年 12月 18日
Application note Texas Instruments Little Logic Application Report 2002年 11月 1日
Application note TI IBIS File Creation, Validation, and Distribution Processes 2002年 8月 29日
More literature Standard Linear & Logic for PCs, Servers & Motherboards 2002年 6月 13日
Application note 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) 2002年 5月 22日
Application note Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices 2002年 5月 10日
More literature STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS 2002年 3月 27日
Application note Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices 1997年 12月 1日
Application note Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 1997年 8月 1日
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 1997年 6月 1日
Application note LVC Characterization Information 1996年 12月 1日
Application note Input and Output Characteristics of Digital Integrated Circuits 1996年 10月 1日
Application note Live Insertion 1996年 10月 1日
Design guide Low-Voltage Logic (LVC) Designer's Guide 1996年 9月 1日
Application note Understanding Advanced Bus-Interface Products Design Guide 1996年 5月 1日

設計與開發

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開發板

5-8-LOGIC-EVM — 適用於 5 針腳至 8 針腳 DCK、DCT、DCU、DRL 和 DBV 封裝的通用邏輯評估模組

靈活的 EVM 旨在支援任何針腳數為 5 至 8 支且採用 DCK、DCT、DCU、DRL 或 DBV 封裝的裝置。
使用指南: PDF
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模擬型號

HSPICE Model for SN74LVC1G123

SCEJ262.ZIP (98 KB) - HSpice Model
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模擬型號

SN74LVC1G123 IBIS Model

SCEM427.ZIP (45 KB) - IBIS Model
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參考設計

TIDA-060008 — 用於將 RS-232 訊號轉換爲 RS-485 訊號的參考設計

This reference design provides a circuit of converting RS-232 signaling to RS-485 signaling. This allows for long-distance communication, since the range supported by RS-232 is normally less than 50 feet while the range for RS-485's can exceed 1000 feet. The design implements bidirectional (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDEP0056 — 在 BeagleBone Black 上使用 PRU-ICSS 進行熱感列印的參考設計

The Programmable Realtime Unit – Industrial Communications Sub-System (PRU-ICSS) is a versatile component of the AM335x SoC that enables real-time, deterministic, fast GPIO control, even when running a non-deterministic operating system. This reference design provides a concrete use case and (...)
Design guide: PDF
電路圖: PDF
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