Description
The 74HCT273D,653 is a high-speed, silicon-gate CMOS Octal D-Type Flip-Flop. It features eight independent D-type flip-flops with a common clock input and a common asynchronous master reset (clear) input. Data at the D inputs, which meets the setup and hold time requirements, is transferred to the Q outputs on the positive-going edge of the clock pulse. The asynchronous master reset allows for the immediate clearing of all eight outputs to a LOW level, independent of the clock signal.
As part of the HCT series, this device is engineered for TTL-compatible input levels, allowing it to interface directly with 5V TTL logic while retaining the low power consumption and high noise immunity of the CMOS logic family. This makes it an ideal component for register applications, bus buffering, and state machine design in complex digital systems. The SOIC-20 surface-mount package is optimized for space-efficient PCB layouts and reliable automated assembly.
Note: Product images are provided for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.
Features
- Octal (8) D-type flip-flop configuration
- Common positive-edge-triggered clock input
- Common asynchronous master reset (clear) input
- High-speed CMOS (HCT) technology
- TTL-compatible input threshold levels
- Wide operating voltage range (4.5V to 5.5V)
- Extended operating temperature range (-40°C to +125°C)
- Compact SOIC-20 SMD package
Benefits
- Highly efficient for 8-bit wide data register implementations
- Provides asynchronous control for rapid system initialization
- Seamless integration with standard TTL/CMOS mixed-logic environments
- High reliability in harsh industrial and automotive temperature conditions
- Space-saving footprint for high-density electronic designs
Applications
- 8-bit Parallel Data Buffering
- Sequential Logic and State Machines
- Data Bus Registers
- Microcontroller Peripheral Synchronization
- Industrial Automation Control Units
- Automotive Digital Electronics
- Embedded System Design
- Electronic Prototyping
Package Includes
- 1 x 74HCT273D,653 Octal D-Type Flip-Flop IC (SOIC-20 SMD)
Specifications
| Parameter | Specification |
|---|---|
| Product Name | 74HCT273D,653 |
| Device Type | Octal D-Type Flip-Flop with Master Reset |
| Logic Family | 74HCT |
| Trigger Type | Positive-edge |
| Operating Voltage | 4.5V to 5.5V |
| Operating Temperature | -40°C to +125°C |
| Package / Case | SOIC-20 (SMD) |
| Mounting Type | Surface Mount (SMD/SMT) |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 x 4 x 1 cm |










