Overview
The SN74HC273, produced by Texas Instruments, is a high-speed CMOS octal D-type flip-flop device. It is part of the 74HC series, known for its low power consumption and high-speed operation. This device is particularly useful in digital circuits where data storage and clocked operations are required. The SN74HC273 features eight flip-flops with individual data inputs and a direct active low clear input, making it versatile for various digital applications.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Operating Voltage Range | 2 | 6 | V | |
| Maximum ICC (Power Consumption) | 80 | µA | ||
| Typical tpd (Propagation Delay) | 12 | ns | ||
| Output Drive at 5 V | ±4 | mA | ||
| Maximum Input Current | 1 | µA | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Clock Frequency at VCC=4.5V | 21 | MHz | ||
| Setup Time Before CLK↑ | 25 | ns | ||
| Hold Time, Data After CLK↑ | 0 | ns |
Key Features
- Wide operating voltage range of 2 V to 6 V.
- Low power consumption with a maximum ICC of 80 µA.
- Typical propagation delay (tpd) of 12 ns.
- Outputs can drive up to 10 LSTTL loads.
- Direct active low clear input.
- Individual data input to each flip-flop.
- Low input current of 1 µA maximum.
- High-speed operation with balanced outputs.
Applications
- Buffer or storage registers.
- Shift registers.
- Pattern generators.
Q & A
- What is the operating voltage range of the SN74HC273? The operating voltage range is from 2 V to 6 V.
- What is the maximum power consumption of the SN74HC273? The maximum power consumption (ICC) is 80 µA.
- What is the typical propagation delay of the SN74HC273? The typical propagation delay (tpd) is 12 ns.
- How many LSTTL loads can the outputs of the SN74HC273 drive? The outputs can drive up to 10 LSTTL loads.
- Does the SN74HC273 have a clear input? Yes, it has a direct active low clear input.
- What is the maximum input current of the SN74HC273? The maximum input current is 1 µA.
- What are some common applications of the SN74HC273? Common applications include buffer or storage registers, shift registers, and pattern generators.
- What is the operating temperature range of the SN74HC273? The operating temperature range is from -40°C to 85°C.
- How many flip-flops does the SN74HC273 contain? The SN74HC273 contains eight flip-flops.
- What is the clock frequency at VCC=4.5V for the SN74HC273? The clock frequency at VCC=4.5V is up to 21 MHz.
