Overview
The CD74HCT165M96 is an 8-bit parallel or serial-in shift register produced by Texas Instruments. This component is part of the 74HCT series, known for its high-speed CMOS logic. It features buffered inputs, asynchronous parallel load, and complementary serial outputs, making it versatile for various digital circuit applications. The device operates within a wide temperature range of -55°C to 125°C and supports both parallel and serial data input modes, allowing for flexible integration into different system designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 4.5 to 5.5 | V |
| Operating Temperature Range | -55 to 125 | ℃ |
| Input Voltage Range | 0 to VCC | V |
| High Level Input Voltage (VIH) | 2 | V |
| Low Level Input Voltage (VIL) | 0.8 | V |
| High Level Output Voltage (VOH) at IOH = -20 μA | 4.4 | V |
| Low Level Output Voltage (VOL) at IOL = 20 μA | 0.1 | V |
| Maximum Clock Pulse Frequency | 27 | MHz |
| Propagation Delay (CLK to QH or Q̄H) | 13 to 50 | ns |
| Package Type | 16-SOIC (0.154", 3.90mm Width) | |
| Mounting Type | Surface Mount |
Key Features
- Buffered inputs for improved signal integrity.
- Asynchronous parallel load capability, allowing data to be loaded into the register without clock synchronization.
- Complementary serial outputs (QH and Q̄H) available from the last stage.
- Fanout capability: standard outputs can drive up to 10 LSTTL loads, and bus driver outputs can drive up to 15 LSTTL loads.
- Wide operating temperature range: -55°C to 125°C.
- High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V.
- Direct LSTTL input logic compatibility.
- CMOS input compatibility with low input current (II ≤ 1 μA at VOL, VOH).
- Significant power reduction compared to LSTTL logic ICs.
Applications
The CD74HCT165M96 is suitable for a variety of applications, including:
- Parallel-to-serial data conversion in digital systems.
- Serial data transmission and reception in communication systems.
- Data storage and retrieval in digital circuits.
- Control and monitoring systems requiring serial data handling.
- Embedded systems and microcontroller interfaces.
Q & A
- What is the primary function of the CD74HCT165M96?
The CD74HCT165M96 is an 8-bit parallel or serial-in shift register, capable of converting parallel data to serial data or handling serial data input.
- What is the operating voltage range of the CD74HCT165M96?
The operating voltage range is 4.5V to 5.5V.
- What is the temperature range for the CD74HCT165M96?
The device operates within a temperature range of -55°C to 125°C.
- What types of outputs does the CD74HCT165M96 provide?
The device provides complementary serial outputs (QH and Q̄H) from the last stage.
- How many LSTTL loads can the standard outputs drive?
The standard outputs can drive up to 10 LSTTL loads.
- What is the maximum clock pulse frequency for the CD74HCT165M96?
The maximum clock pulse frequency is 27 MHz.
- What is the propagation delay from CLK to QH or Q̄H?
The propagation delay ranges from 13 to 50 ns depending on the operating conditions.
- What package type is the CD74HCT165M96 available in?
The device is available in a 16-SOIC package.
- Is the CD74HCT165M96 compatible with LSTTL input logic?
Yes, it has direct LSTTL input logic compatibility.
- What is the input current characteristic of the CD74HCT165M96?
The input current is very low, with II ≤ 1 μA at VOL, VOH.
