Overview
The SN74LVC1G123DCUT is a single retriggerable monostable multivibrator designed and manufactured by Texas Instruments. This device is part of the LVC (Low-Voltage CMOS) family and is optimized for 1.65-V to 5.5-V VCC operation. It features output pulse-duration control through various input configurations and is suitable for a wide range of applications requiring precise timing and pulse generation.
The device is available in several package options, including SSOP, VSSOP, and DSBGA, making it versatile for different design requirements. The NanoFree™ package technology used in this device is a significant advancement in IC packaging, utilizing the die as the package itself.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Operating Voltage | 1.65 | 5.5 | V | |
| Input Voltage | 0 | 5.5 | V | |
| Low-level Input Voltage (VIL) | 0.35 × VCC | 0.7 × VCC | V | |
| High-level Output Current (IOH) | -4 | -32 | mA | |
| Low-level Output Current (IOL) | 4 | 32 | mA | |
| Propagation Delay Time (tpd) | 6 | 58 | ns | |
| Operating Free-Air Temperature | -40 | 125 | °C | |
| External Timing Resistance (Rext) | 1 | 5 | kΩ |
Key Features
- Retriggerable Monostable Multivibrator: The device can be triggered by either a low-to-high transition on the B input or a high-to-low transition on the A input, with the ability to retrigger the output pulse.
- Pulse Duration Control: The output pulse duration is programmable using external resistance and capacitance values.
- Schmitt Trigger Inputs: A and B inputs have Schmitt triggers with sufficient hysteresis to handle slow input transition rates and provide jitter-free triggering.
- Clear Input (CLR): The CLR input can be used to terminate the output pulse early or override the A or B inputs.
- Mixed-Mode Voltage Operation: Supports mixed-mode voltage operation on all ports, allowing inputs up to 5.5 V.
- Glitch-Free Power-Up Reset: Ensures all outputs are in a defined state during power-up.
- Ioff Support: Live insertion, partial-power-down mode, and back-drive protection are supported.
- Latch-Up Performance: Exceeds 100 mA per JESD 78, Class II.
Applications
- DVD Recorders and Players: For timing and pulse generation in multimedia devices.
- Desktop PCs and Notebook PCs: In power management and timing circuits.
- Digital Radio and Internet Radio Players: For signal processing and timing.
- Digital Video Cameras (DVC): In camera control and timing circuits.
- Embedded PCs: For various timing and control functions.
- GPS: Personal Navigation Devices: In navigation and timing systems.
- Mobile Internet Devices: For power management and timing.
- Network Attached Storage (NAS): In storage and retrieval timing.
- Personal Digital Assistant (PDA): For various control and timing functions.
- Server PSU: In power supply timing and control.
- Solid-State Drive (SSD): Client and enterprise SSD applications.
- Video Analytics Servers: For timing and signal processing.
- Wireless Headsets, Keyboards, and Mice: In wireless device control and timing.
Q & A
- What is the operating voltage range of the SN74LVC1G123DCUT?
The operating voltage range is from 1.65 V to 5.5 V.
- How is the output pulse duration controlled in the SN74LVC1G123DCUT?
The output pulse duration is controlled by selecting external resistance and capacitance values connected to the Rext/Cext and Cext pins.
- What is the function of the CLR input in the SN74LVC1G123DCUT?
The CLR input can be used to terminate the output pulse early or override the A or B inputs.
- What types of inputs does the SN74LVC1G123DCUT have?
The device has Schmitt trigger inputs on A and B, which handle slow input transition rates with jitter-free triggering.
- What are the package options available for the SN74LVC1G123DCUT?
The device is available in SSOP, VSSOP, and DSBGA packages.
- What is the maximum propagation delay time (tpd) at 3.3 V?
The maximum propagation delay time (tpd) at 3.3 V is 8 ns.
- Does the SN74LVC1G123DCUT support mixed-mode voltage operation?
Yes, it supports mixed-mode voltage operation on all ports, allowing inputs up to 5.5 V.
- What is the operating free-air temperature range of the SN74LVC1G123DCUT?
The operating free-air temperature range is from -40°C to 125°C.
- Can the SN74LVC1G123DCUT be used in partial-power-down applications?
Yes, it is fully specified for partial-power-down applications using Ioff circuitry.
- What is the significance of the NanoFree™ package technology used in the SN74LVC1G123DCUT?
The NanoFree™ package technology uses the die as the package itself, which is a major breakthrough in IC packaging concepts.
