Overview
The SN74LV165A, produced by Texas Instruments, is a parallel-load, 8-bit shift register designed for operation within a voltage range of 2 V to 5.5 V. This device is part of the 74LV series and is fabricated using CMOS technology, which ensures low power consumption and high speed. The SN74LV165A features a clock-inhibit function and a complemented serial output, QH, allowing for flexible data shifting and loading. It is suitable for various applications requiring serial-to-parallel or parallel-to-serial data conversion.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC Operation Range | 2 V to 5.5 V | V |
| Maximum Propagation Delay (tpd) at 5 V | 10.5 ns | ns |
| Maximum Operating Temperature | 125°C | °C |
| Minimum Operating Temperature | -40°C | °C |
| Number of Bits | 8 | - |
| Package Type | SOIC, TSSOP, VQFN | - |
| Number of Pins | 16 | - |
| Logic Function | Shift Register, OR Gate | - |
| RoHS Compliance | Yes | - |
Key Features
- VCC operation range of 2 V to 5.5 V, allowing for mixed-mode voltage operation on all ports.
- Maximum propagation delay of 10.5 ns at 5 V, ensuring high-speed data transfer.
- Clock-inhibit function and complemented serial output, QH, for flexible data shifting and loading.
- Support for partial-power-down mode operation using Ioff circuitry, which disables the outputs to prevent damaging current backflow.
- Latch-up performance exceeds 250 mA per JESD 17, enhancing reliability.
- Parallel-in access to each stage enabled by a low level at the shift/load (SH/LD) input.
Applications
The SN74LV165A is versatile and can be used in various applications, including:
- Increasing the number of inputs on a microcontroller by converting serial data to parallel data.
- Data transmission and reception in serial communication systems.
- Buffering and storing data in digital systems.
- Implementing shift register functions in digital circuits.
Q & A
- What is the voltage operation range of the SN74LV165A?
The SN74LV165A operates within a voltage range of 2 V to 5.5 V.
- What is the maximum propagation delay at 5 V for the SN74LV165A?
The maximum propagation delay at 5 V is 10.5 ns.
- Does the SN74LV165A support partial-power-down mode operation?
Yes, the SN74LV165A supports partial-power-down mode operation using Ioff circuitry.
- What is the latch-up performance of the SN74LV165A?
The latch-up performance exceeds 250 mA per JESD 17.
- How is clocking accomplished in the SN74LV165A?
Clocking is accomplished by a low-to-high transition of the clock (CLK) input while SH/LD is held high and clock inhibit (CLK INH) is held low.
- What is the purpose of the shift/load (SH/LD) input in the SN74LV165A?
The shift/load (SH/LD) input enables parallel-in access to each stage when held low.
- Is the SN74LV165A RoHS compliant?
Yes, the SN74LV165A is RoHS compliant.
- What are the common package types for the SN74LV165A?
The common package types include SOIC, TSSOP, and VQFN.
- How many pins does the SN74LV165A have?
The SN74LV165A has 16 pins.
- What is the logic function of the SN74LV165A?
The logic function includes shift register and OR gate operations.
