Overview
The SN74HC165N is an 8-bit parallel-load shift register produced by Texas Instruments. This device is designed to convert parallel data into a serial output, making it a versatile component in various digital circuits. It features a wide operating voltage range, low power consumption, and multiple input and output configurations, making it suitable for a range of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 2 V to 6 V | V |
| Output Drive Capability | Up to 10 LSTTL loads | |
| Maximum Power Consumption | 80 µA | µA |
| Typical Propagation Delay (tpd) | 13 ns | ns |
| Output Drive at 5 V | ±4 mA | mA |
| Maximum Input Current | 1 µA | µA |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | PDIP (16 pins) | |
| Package Dimensions | 6.60 mm × 18.92 mm | mm |
Key Features
- Wide Operating Voltage Range of 2 V to 6 V
- Outputs Can Drive Up to 10 LSTTL Loads
- Low Power Consumption, 80-µA Maximum
- Typical Propagation Delay (tpd) of 13 ns
- ±4-mA Output Drive at 5 V
- Low Input Current of 1 µA Maximum
- Complementary Outputs
- Direct Overriding Load (Data) Inputs
- Gated Clock Inputs
- Parallel-to-Serial Data Conversion
- Clock-Inhibit (CLK INH) Function
Applications
- Programmable Logic Controllers
- Appliances
- Video Display Systems
- Output Expanders
- Keyboards
Q & A
- What is the operating voltage range of the SN74HC165N?
The operating voltage range is from 2 V to 6 V.
- How many LSTTL loads can the outputs of the SN74HC165N drive?
The outputs can drive up to 10 LSTTL loads.
- What is the maximum power consumption of the SN74HC165N?
The maximum power consumption is 80 µA.
- What is the typical propagation delay (tpd) of the SN74HC165N?
The typical propagation delay is 13 ns.
- What is the output drive capability at 5 V for the SN74HC165N?
The output drive capability at 5 V is ±4 mA.
- What is the maximum input current for the SN74HC165N?
The maximum input current is 1 µA.
- Does the SN74HC165N have complementary outputs?
- What is the purpose of the clock-inhibit (CLK INH) function in the SN74HC165N?
The clock-inhibit function inhibits the clock, resulting in no change of the output.
- How does the parallel-to-serial data conversion work in the SN74HC165N?
The device loads all 8 bits simultaneously through parallel load inputs when SH/LD is low and shifts the data when CLK toggles.
- What are some common applications of the SN74HC165N?
Common applications include programmable logic controllers, appliances, video display systems, output expanders, and keyboards.
