Overview
The SN74LVC3G17DCUR is a triple Schmitt-trigger buffer integrated circuit produced by Texas Instruments. This device is designed for operation over a wide voltage range of 1.65 V to 5.5 V, making it versatile for various applications. It contains three independent buffers that perform the Boolean function Y = A, with the added benefit of Schmitt-trigger inputs which help in noise immunity by providing different input threshold levels for positive-going and negative-going signals.
The device is packaged in a VSSOP-8 (DCU) package, utilizing Texas Instruments' NanoFree™ package technology, which uses the die as the package, minimizing the overall size.
The SN74LVC3G17DCUR is fully specified for partial-power-down applications and features Ioff circuitry that disables the outputs to prevent damaging current backflow when the device is powered down.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| VCC Supply Voltage | Operating voltage range | 1.65 V to 5.5 V |
| Input Voltage | Maximum input voltage | Up to 5.5 V |
| Maximum Propagation Delay (tpd) | At VCC = 3.3 V | 5.4 ns |
| Low Power Consumption (ICC) | Maximum current consumption | 10 μA |
| Output Drive | At VCC = 3.3 V | ±24 mA |
| Output Ground Bounce (VOLP) | At VCC = 3.3 V, TA = 25°C | < 0.8 V |
| Output VOH Undershoot (VOHV) | At VCC = 3.3 V, TA = 25°C | > 2 V |
| ESD Protection | Human Body Model, Machine Model, Charged-Device Model | 2000 V, 200 V, 1000 V respectively |
| Package Type | VSSOP-8 | |
| Operating Temperature Range | –40°C to 125°C |
Key Features
- Available in Texas Instruments' NanoFree™ package, which minimizes package size by using the die as the package.
- Supports 5-V VCC operation.
- Inputs accept voltages up to 5.5 V.
- Low power consumption with a maximum ICC of 10 μA.
- ±24-mA output drive at 3.3 V.
- Typical output ground bounce (VOLP) < 0.8 V and output VOH undershoot (VOHV) > 2 V at VCC = 3.3 V, TA = 25°C.
- Ioff circuitry 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 standards (2000-V human-body model, 200-V machine model, 1000-V charged-device model).
Applications
The SN74LVC3G17DCUR is suitable for a variety of applications where noise immunity and low power consumption are critical. These include:
- General-purpose buffering in digital circuits.
- Signal conditioning and noise reduction due to its Schmitt-trigger inputs.
- Partial-power-down applications where the Ioff feature is beneficial.
- Designs requiring high output drive capability and low power consumption.
- Applications in industrial, automotive, and consumer electronics where robust ESD protection is necessary.
Q & A
- What is the operating voltage range of the SN74LVC3G17DCUR?
The operating voltage range is 1.65 V to 5.5 V.
- What type of package does the SN74LVC3G17DCUR come in?
The device is packaged in a VSSOP-8 (DCU) package.
- What is the maximum propagation delay (tpd) at 3.3 V?
The maximum propagation delay is 5.4 ns at 3.3 V.
- What is the maximum current consumption (ICC) of the device?
The maximum current consumption is 10 μA.
- What is the output drive capability at 3.3 V?
The output drive capability is ±24 mA at 3.3 V.
- Does the device support partial-power-down applications?
Yes, the device supports partial-power-down applications using Ioff circuitry.
- What level of ESD protection does the device offer?
The device offers ESD protection exceeding JESD 22 standards: 2000-V human-body model, 200-V machine model, and 1000-V charged-device model.
- What is the operating temperature range of the SN74LVC3G17DCUR?
The operating temperature range is –40°C to 125°C.
- How does the Schmitt-trigger input feature benefit the device?
The Schmitt-trigger input feature provides noise immunity by having different input threshold levels for positive-going and negative-going signals.
- What are some typical applications for the SN74LVC3G17DCUR?
Typical applications include general-purpose buffering, signal conditioning, partial-power-down applications, and designs requiring high output drive and low power consumption.
