Overview
The SN74HCT273APWR is a high-speed, octal D-type flip-flop integrated circuit produced by Texas Instruments. This device is part of the 74HCT series, which is compatible with TTL (Transistor-Transistor Logic) voltage levels. It features a common enable input and a direct clear input, making it versatile for various digital logic applications. The SN74HCT273 is positive-edge-triggered, meaning the data at the input is transferred to the output on the rising edge of the clock pulse.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5 | 5.5 | V |
| High-Level Input Voltage (VIH) | 2 | 2 | 2 | V |
| Low-Level Input Voltage (VIL) | 0.8 | 0.8 | 0.8 | V |
| Operating Temperature Range (TA) | -40 | - | 85 | °C |
| Propagation Delay Time (tpd) | 12 | 29 | 42 | ns |
| Output Drive Current | - | - | ±4mA | A |
| Maximum ICC (Low Power Consumption) | - | - | 80µA | A |
| Maximum Input Current | - | - | 1µA | A |
Key Features
- Operating voltage range of 4.5V to 5.5V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, maximum ICC of 80µA
- Typical propagation delay time (tpd) of 12ns to 42ns
- ±4mA output drive at 5V
- Low input current of 1µA maximum
- Inputs are TTL-voltage compatible
- Contains eight D-type flip-flops with a common enable input and direct clear input
Applications
- Buffer or storage registers
- Shift registers
- Pattern generators
Q & A
- What is the operating voltage range of the SN74HCT273?
The operating voltage range is from 4.5V to 5.5V.
- How many D-type flip-flops does the SN74HCT273 contain?
The device contains eight D-type flip-flops.
- What is the typical propagation delay time (tpd) of the SN74HCT273?
The typical propagation delay time ranges from 12ns to 42ns.
- What is the maximum output drive current of the SN74HCT273?
The maximum output drive current is ±4mA at 5V.
- Is the SN74HCT273 compatible with TTL voltage levels?
- What is the purpose of the direct clear input in the SN74HCT273?
The direct clear input allows for immediate clearing of all flip-flops without the need for a latched clock.
- What are some common applications of the SN74HCT273?
- What is the maximum operating temperature of the SN74HCT273?
- How many LSTTL loads can the outputs of the SN74HCT273 drive?
- What is the maximum input current of the SN74HCT273?
