Overview
The SN74HC273N3, produced by Texas Instruments, is an octal D-type flip-flop integrated circuit with a direct active low clear input. This device is part of the HC (High-Speed CMOS) logic family and is designed for high-speed applications. It contains eight flip-flops, each with a single-rail output and individual data input. The flip-flops are positive-edge-triggered, meaning the data at the input is transferred to the output on the positive-going edge of the clock pulse.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit |
|---|---|---|---|---|
| Operating Voltage Range | 2 | 6 | V | |
| Maximum ICC (Power Consumption) | 80 | µA | ||
| Maximum Input Current | 1 | µA | ||
| Output Drive | VCC = 5 V | ±4 | mA | |
| Maximum Clock Frequency | VCC = 2 V | 4 | MHz | |
| Maximum Clock Frequency | VCC = 4.5 V | 18 | MHz | |
| Maximum Clock Frequency | VCC = 6 V | 21 | MHz | |
| tPHL (CLR to Output) | VCC = 2 V | 240 | ns | |
| tPHL (CLR to Output) | VCC = 4.5 V | 48 | ns | |
| tPHL (CLR to Output) | VCC = 6 V | 41 | ns | |
| tpd (CLK to Output) | VCC = 2 V | 240 | ns | |
| tpd (CLK to Output) | VCC = 4.5 V | 48 | ns | |
| tpd (CLK to Output) | VCC = 6 V | 41 | ns | |
| Operating Temperature Range | -40 | 85 | °C |
Key Features
- Wide operating voltage range of 2 V to 6 V.
- Outputs can drive up to 10 LSTTL loads.
- Low power consumption with a maximum ICC of 80 µA.
- Typical propagation delay (tpd) of 12 ns.
- ±4 mA output drive at 5 V.
- Low input current of 1 µA maximum.
- Contains eight flip-flops with single-rail outputs and individual data inputs.
- Direct active low clear input.
- Positive-edge-triggered flip-flops.
Applications
- Buffer or storage registers.
- Shift registers.
- Pattern generators.
Q & A
- What is the operating voltage range of the SN74HC273N3?
The operating voltage range is from 2 V to 6 V.
- How many flip-flops does the SN74HC273N3 contain?
The device contains eight D-type flip-flops.
- What is the maximum power consumption of the SN74HC273N3?
The maximum power consumption (ICC) is 80 µA.
- What is the typical propagation delay of the SN74HC273N3?
The typical propagation delay (tpd) is 12 ns.
- Can the outputs of the SN74HC273N3 drive multiple LSTTL loads?
Yes, the outputs can drive up to 10 LSTTL loads.
- What is the maximum input current for the SN74HC273N3?
The maximum input current is 1 µA.
- What type of triggering does the SN74HC273N3 use?
The device uses positive-edge triggering.
- What is the operating temperature range of the SN74HC273N3?
The operating temperature range is from -40°C to 85°C.
- Does the SN74HC273N3 have a direct clear input?
Yes, it has a direct active low clear input.
- What are some common applications of the SN74HC273N3?
Common applications include buffer or storage registers, shift registers, and pattern generators.
