Overview
The MC74HC273ADTR2G, produced by onsemi, is a high-performance silicon-gate CMOS octal D flip-flop with common clock and reset inputs. This device is part of the HC and HCT series, known for their compatibility with various logic families and high noise immunity. The MC74HC273A and MC74HCT273A are identical in pinout to the LS273 and are designed to interface with CMOS, NMOS, and TTL outputs, making them versatile components in digital circuit design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 2.0 - 6.0 (HC), 4.5 - 5.5 (HCT) | V |
| Operating Free-Air Temperature | -55 to +125 | °C |
| Maximum Clock Frequency (50% Duty Cycle) | Up to 35 MHz (HC), Up to 30 MHz (HCT) | MHz |
| Propagation Delay, Clock to Q | 25 - 220 ns (depending on VCC) | ns |
| Input Leakage Current | ±1.0 µA | µA |
| Quiescent Supply Current (per Package) | Up to 160 µA | µA |
| Output Drive Capability | Up to 10 LSTTL loads | |
| Package Type | TSSOP-20 |
Key Features
- High noise immunity characteristic of CMOS devices.
- Output drive capability to directly interface with CMOS, NMOS, and TTL.
- Operating voltage range: 2.0 to 6.0 V for HC and 4.5 to 5.5 V for HCT.
- Low input current: 1.0 µA.
- Asynchronous active-low reset.
- In compliance with JEDEC Standard No. 7A.
- Pb-free, halogen-free, and RoHS compliant.
- AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements.
Applications
The MC74HC273ADTR2G is suitable for a wide range of digital circuit applications, including:
- Sequential logic circuits.
- Data storage and transfer.
- Level conversion between different logic families (TTL to CMOS, NMOS to CMOS).
- Automotive and industrial control systems.
- High-speed digital systems requiring low power consumption and high noise immunity.
Q & A
- What is the operating voltage range for the MC74HC273A and MC74HCT273A?
The operating voltage range for the MC74HC273A is 2.0 to 6.0 V, and for the MC74HCT273A, it is 4.5 to 5.5 V.
- What is the maximum clock frequency for these devices?
The maximum clock frequency for the MC74HC273A is up to 35 MHz, and for the MC74HCT273A, it is up to 30 MHz.
- How many D flip-flops are included in the MC74HC273A/HCT273A?
The device includes eight D flip-flops with common clock and reset inputs.
- What is the propagation delay from clock to Q?
The propagation delay from clock to Q ranges from 25 to 220 ns, depending on the VCC voltage.
- Are these devices RoHS compliant?
- What is the input leakage current of these devices?
The input leakage current is ±1.0 µA.
- Can these devices be used for level conversion?
- What is the quiescent supply current for these devices?
The quiescent supply current is up to 160 µA per package.
- Are these devices suitable for automotive applications?
- What is the package type for the MC74HC273ADTR2G?
The package type is TSSOP-20.
