Overview
The SN74LV164A, specifically the SN74LV164APWR, is an 8-bit parallel-out serial shift register designed and manufactured by Texas Instruments. This device is optimized for operation over a wide voltage range of 2 V to 5.5 V, making it versatile for various applications. It features a serial input and a parallel output, allowing for efficient data transfer and processing. The SN74LV164A is available in several package options, including SOIC, SSOP, TVSOP, SOP, TSSOP, VQFN, and WQFN, catering to different design requirements.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| VCC Operation | 2 V to 5.5 V | V | |
| Maximum tpd (Propagation Delay) | 10.5 ns | ns | VCC = 5 V |
| Typical VOLP (Output Ground Bounce) | < 0.8 V | V | VCC = 3.3 V, TA = 25°C |
| Typical VOHV (Output VOH Undershoot) | > 2.3 V | V | VCC = 3.3 V, TA = 25°C |
| Ioff (Partial Power-Down Mode) | Supports live insertion, partial power-down mode, and back-drive protection | ||
| Thermal Resistance (RθJA) | 92.6 to 138.7 °C/W | °C/W | Depending on package type |
| Operating Temperature Range | –40°C to 85°C (or 125°C for some packages) | °C |
Key Features
- VCC operation from 2 V to 5.5 V, allowing for use in a wide range of voltage environments.
- Maximum propagation delay of 10.5 ns at 5 V, ensuring high-speed data transfer.
- Low output ground bounce and VOH undershoot, minimizing signal distortion.
- Support for live insertion, partial power-down mode, and back-drive protection through Ioff circuitry.
- Mixed-mode voltage operation on all ports, enhancing flexibility in system design.
- Latch-up performance exceeding 250 mA per JESD 17, ensuring robust operation.
- Available in multiple package types (SOIC, SSOP, TVSOP, SOP, TSSOP, VQFN, WQFN) to suit various design needs.
Applications
- IP routers and enterprise switches for high-speed data processing.
- Access control and security systems, including access keypads and biometrics.
- Smart meters, particularly for power line communication.
Q & A
- What is the voltage range for the SN74LV164A?
The SN74LV164A operates over a voltage range of 2 V to 5.5 V.
- What is the maximum propagation delay of the SN74LV164A at 5 V?
The maximum propagation delay is 10.5 ns at 5 V.
- What is the typical output ground bounce at VCC = 3.3 V and TA = 25°C?
The typical output ground bounce is less than 0.8 V.
- Does the SN74LV164A support partial power-down mode?
- What are the available package types for the SN74LV164A?
The device is available in SOIC, SSOP, TVSOP, SOP, TSSOP, VQFN, and WQFN packages.
- What is the operating temperature range for the SN74LV164A?
The operating temperature range is –40°C to 85°C (or 125°C for some packages).
- What are some common applications of the SN74LV164A?
Common applications include IP routers, enterprise switches, access control and security systems, and smart meters.
- Does the SN74LV164A support mixed-mode voltage operation?
- What is the latch-up performance of the SN74LV164A?
The latch-up performance exceeds 250 mA per JESD 17.
- Where can I find detailed specifications and thermal metrics for the SN74LV164A?
Detailed specifications and thermal metrics can be found in the datasheet available on the Texas Instruments website and other authorized distributors.
