Overview
The SN74LV595APWRG3 is an 8-bit serial-in, parallel-out shift register with 3-state output registers, manufactured by Texas Instruments. This device is part of the SN74LV595A series and is packaged in a 16-pin TSSOP (PW) package. It operates over a wide voltage range of 2 V to 5.5 V, making it versatile for various applications. The device features separate clocks for both the shift and storage registers, along with a direct overriding clear input and a serial output for cascading. This allows for efficient data transfer and control in digital systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 2 | - | 5.5 | V |
| VIH High-Level Input Voltage | 0.7*VCC | - | - | V |
| VIL Low-Level Input Voltage | 0.3*VCC | - | - | V |
| IOH High-Level Output Current | -50 µA | -2 mA | -16 mA | A |
| IOL Low-Level Output Current | 50 µA | 2 mA | 16 mA | A |
| tpd Propagation Delay (SRCLK to QA-QH) | 6 ns | 11.9 ns | 14.5 ns | ns |
| Operating Temperature Range | -40°C | - | 125°C | °C |
Key Features
- Operates over a wide voltage range of 2 V to 5.5 V.
- Maximum propagation delay of 7.1 ns at 5 V.
- Typical output ground bounce less than 0.8 V at VCC = 3.3 V.
- Supports mixed-mode voltage operation on all ports.
- 8-bit serial-in, parallel-out shift register with direct clear input.
- Ioff supports live insertion, partial power-down mode, and back-drive protection.
- Separate clocks for shift and storage registers.
- 3-state output registers with output enable (OE) input.
Applications
- Output expansion in digital systems.
- LED matrix control.
- 7-segment display control.
Q & A
- What is the voltage range for the SN74LV595APWRG3?
The SN74LV595APWRG3 operates over a voltage range of 2 V to 5.5 V.
- What is the maximum propagation delay at 5 V?
The maximum propagation delay at 5 V is 7.1 ns.
- What is the typical output ground bounce at VCC = 3.3 V?
The typical output ground bounce at VCC = 3.3 V is less than 0.8 V.
- Does the device support mixed-mode voltage operation?
- What type of shift register does the SN74LV595APWRG3 contain?
The device contains an 8-bit serial-in, parallel-out shift register.
- What is the purpose of the SRCLR input?
The SRCLR input is a direct overriding clear input for the shift register.
- Can the device be used for LED matrix control?
- What is the significance of the OE (Output Enable) input?
The OE input controls the 3-state output registers; when high, all outputs except QH′ are in the high-impedance state.
- What is the operating temperature range of the SN74LV595APWRG3?
The operating temperature range is from -40°C to 125°C.
- Does the device support Ioff for power management?
