Overview
The SN74LVC1G123DCURE4, produced by Texas Instruments, is a single retriggerable monostable multivibrator. This device is designed to operate over a wide voltage range of 1.65V to 5.5V, making it versatile for various applications. It features Schmitt-trigger inputs, which are beneficial for handling slow input transition rates. The multivibrator supports edge triggering from both active-high and active-low gated logic inputs and can produce output pulses with durations controlled by external resistance and capacitance values. It also includes a clear input to terminate the output pulse early and supports glitch-free power-up reset on all outputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC Supply Voltage | 1.65 to 5.5 | V |
| Input Voltage | -0.5 to 6.5 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Propagation Delay (tpd) at 3.3V | 8 | ns |
| Output Drive (IOL/IOH) | 32/-32 | mA |
| Package Type | VSSOP (DCU) | |
| Number of Pins | 8 | |
| ESD Protection | 2000V Human-Body Model, 200V Machine Model, 1000V Charged-Device Model |
Key Features
- Supports 5V VCC operation and accepts inputs up to 5.5V
- 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 input to terminate the 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
- Available in the Texas Instruments NanoFree™ package
Applications
- AV Receivers
- Blu-ray Players and Home Theaters
- DVD Recorders and Players
- Desktop PCs or Notebook PCs
- Digital Radio and Internet Radio Players
- Digital Video Cameras (DVC)
- Embedded PCs
- GPS: Personal Navigation Devices
- Mobile Internet Devices
- Network Attached Storage (NAS)
- Personal Digital Assistant (PDA)
- Server PSU
- Solid-State Drive (SSD): Client and Enterprise
- Video Analytics Servers
- Wireless Headsets, Keyboards, and Mice
- Switch debounce circuits
Q & A
- What is the operating voltage range of the SN74LVC1G123?
The SN74LVC1G123 operates over a voltage range of 1.65V to 5.5V.
- What type of inputs does the SN74LVC1G123 have?
The device features Schmitt-trigger inputs on A and B.
- How is the output pulse duration controlled in the SN74LVC1G123?
The output pulse duration is controlled by selecting external resistance and capacitance values.
- What is the maximum propagation delay at 3.3V?
The maximum propagation delay at 3.3V is 8 ns.
- Does the SN74LVC1G123 support glitch-free power-up reset?
Yes, the device supports glitch-free power-up reset on all outputs.
- What is the purpose of the clear input in the SN74LVC1G123?
The clear input can be used to terminate the output pulse early.
- What are some common applications of the SN74LVC1G123?
Common applications include AV receivers, Blu-ray players, DVD recorders, desktop PCs, and switch debounce circuits.
- What is the package type of the SN74LVC1G123DCURE4?
The package type is VSSOP (DCU) with 8 pins.
- Does the SN74LVC1G123 support live insertion and partial-power-down mode?
Yes, it supports live insertion, partial-power-down mode, and back-drive protection through the Ioff feature.
- What is the ESD protection level of the SN74LVC1G123?
The device has ESD protection exceeding 2000V Human-Body Model, 200V Machine Model, and 1000V Charged-Device Model.
