Overview
The 74HCT273DB,112 is an octal D-type flip-flop with reset, produced by Nexperia USA Inc. This integrated circuit is part of the 74HCT family, which is known for its compatibility with TTL (Transistor-Transistor Logic) levels. The device features positive-edge triggered D-type flip-flops, making it suitable for a variety of digital logic applications.
The 74HCT273DB,112 is packaged in a 20-pin SSOP (Shrink Small Outline Package) and is designed to operate over a wide supply voltage range from 4.5 V to 5.5 V. It includes clock (CP) and master reset (MR) inputs, allowing for precise control over the flip-flop states.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SSOP20 (SOT339-1) | - |
| Supply Voltage Range | 4.5 V to 5.5 V | V |
| Logic Family | TTL | - |
| Propagation Delay (CP to Qn) | 16 to 45 ns (VCC = 4.5 V to 5.5 V) | ns |
| Propagation Delay (MR to Qn) | 23 to 51 ns (VCC = 4.5 V to 5.5 V) | ns |
| Operating Temperature Range | -40°C to +125°C | °C |
| Noise Immunity | High | - |
| Latch-up Performance | Exceeds 100 mA per JESD 78 Class II Level B | - |
Key Features
- Positive-Edge Triggered D-Type Flip-Flops: The device assumes the state of the D inputs on the LOW-to-HIGH clock transition.
- Master Reset Input: A LOW on the MR input forces the outputs LOW, independent of clock and data inputs.
- Wide Supply Voltage Range: Operates from 4.5 V to 5.5 V, making it versatile for various applications.
- High Noise Immunity: Ensures reliable operation in noisy environments.
- Low Power Dissipation: CMOS technology reduces power consumption.
- Compliance with JEDEC Standards: Meets JESD8C standards for 2.7 V to 3.6 V.
- Input Clamp Diodes: Allows the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Applications
- Digital Logic Circuits: Suitable for use in digital counters, shift registers, and other sequential logic circuits.
- Memory and Storage Systems: Can be used in memory address decoding and data storage applications.
- Communication Systems: Useful in synchronization and timing circuits in communication systems.
- Industrial Control Systems: Employed in control and monitoring systems that require precise timing and sequencing.
Q & A
- What is the package type of the 74HCT273DB,112?
The 74HCT273DB,112 is packaged in a 20-pin SSOP (Shrink Small Outline Package), specifically SOT339-1.
- What is the supply voltage range for the 74HCT273DB,112?
The device operates over a supply voltage range from 4.5 V to 5.5 V.
- What type of logic family does the 74HCT273DB,112 belong to?
The 74HCT273DB,112 belongs to the TTL (Transistor-Transistor Logic) family.
- What is the propagation delay for the clock to output transition?
The propagation delay from clock (CP) to output (Qn) is between 16 ns and 45 ns for VCC = 4.5 V to 5.5 V.
- How does the master reset input function?
A LOW on the master reset (MR) input forces the outputs LOW, independent of the clock and data inputs.
- What is the operating temperature range of the 74HCT273DB,112?
The device operates over a temperature range from -40°C to +125°C.
- Does the 74HCT273DB,112 have high noise immunity?
Yes, the device has high noise immunity, ensuring reliable operation in noisy environments.
- Is the 74HCT273DB,112 compliant with any specific standards?
Yes, it complies with JEDEC standards, specifically JESD8C for 2.7 V to 3.6 V.
- What is the purpose of the input clamp diodes in the 74HCT273DB,112?
The input clamp diodes enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
- Is the 74HCT273DB,112 still in production?
No, the 74HCT273DB,112 is listed as obsolete and is no longer manufactured.
