Overview
The SN74HC165PWRG3 is an 8-bit parallel-load shift register produced by Texas Instruments. This component is part of the SN74HC165 series, which is designed for use in a variety of digital logic applications. The device features parallel loading, serial shifting, and complementary serial outputs, making it versatile for data conversion and transmission tasks.
The SN74HC165PWRG3 is packaged in a TSSOP (Thin Shrink Small Outline Package) with 16 pins, ensuring compact integration into modern electronic designs. It operates over a wide range of supply voltages from 2 V to 6 V, making it compatible with various system requirements.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC | 2 | 6 | V | ||
| VOH (VCC = 4.5 V, IOH = -4 mA) | 3.98 | 4.3 | V | ||
| VOL (VCC = 4.5 V, IOL = 4 mA) | 0.17 | 0.26 | V | ||
| II (VCC = 6 V, VI = VCC or 0) | ±0.1 | ±100 nA | nA | ||
| ICC (VCC = 6 V, IO = 0) | 8 | 160 | µA | ||
| Ci (VCC = 2 V to 6 V) | 3 | 10 | pF | ||
| tpd (CLK to QH or QH', VCC = 4.5 V, CL = 50 pF) | 15 | 30 | ns | ||
| fmax (Clock frequency, VCC = 4.5 V) | 31 | 50 | MHz |
Key Features
- Parallel-to-Serial Data Conversion: The SN74HC165 allows for parallel loading of data through eight individual direct data inputs (A-H) and serial shifting of the data.
- Complementary Serial Outputs: The device features a complementary serial output (QH and QH') for flexibility in output connections.
- Clock-Inhibit Function: The clock-inhibit (CLK INH) function allows for control over the clocking process, enabling or disabling the clock input.
- Low Input Current: The device has a low input current of 1 µA maximum, reducing power consumption.
- High Output Drive: The SN74HC165 provides a high output drive capability of ±4 mA at 5 V.
- Wide Operating Voltage Range: Operates from 2 V to 6 V, making it suitable for various system designs.
Applications
- Programmable Logic Controllers: Used in PLCs for data processing and transmission.
- Appliances: Integrated into various household and industrial appliances for digital control.
- Video Display Systems: Utilized in video display systems for data conversion and transmission.
- Output Expanders: Used to expand the output capabilities of other digital systems.
- Keyboards and Other Input Devices: Employed in keyboard and other input device circuits for data handling.
Q & A
- What is the primary function of the SN74HC165PWRG3?
The primary function is to convert parallel data into serial data and shift it out through a serial output.
- What is the operating voltage range of the SN74HC165PWRG3?
The device operates from 2 V to 6 V.
- What is the maximum clock frequency for the SN74HC165PWRG3 at 4.5 V?
The maximum clock frequency is 50 MHz at 4.5 V.
- What is the typical propagation delay from CLK to QH or QH' at 4.5 V?
The typical propagation delay is 30 ns at 4.5 V.
- Does the SN74HC165PWRG3 have complementary serial outputs?
Yes, it features complementary serial outputs (QH and QH').
- What is the input current of the SN74HC165PWRG3?
The input current is 1 µA maximum.
- What are some common applications of the SN74HC165PWRG3?
Common applications include programmable logic controllers, appliances, video display systems, output expanders, and keyboards.
- What package type is the SN74HC165PWRG3 available in?
The SN74HC165PWRG3 is available in a TSSOP (Thin Shrink Small Outline Package) with 16 pins.
- Does the SN74HC165PWRG3 have a clock-inhibit function?
Yes, it features a clock-inhibit (CLK INH) function.
- What is the output drive capability of the SN74HC165PWRG3 at 5 V?
The output drive capability is ±4 mA at 5 V.
