Overview
The MC74ACT273NG is an octal D-type flip-flop integrated circuit produced by ON Semiconductor. This device features eight edge-triggered D-type flip-flops, each with individual D inputs and Q outputs. It includes a common buffered Clock (CP) and an asynchronous Master Reset (MR) input, which allows all flip-flops to be reset simultaneously. This component is particularly useful in applications requiring synchronized data storage and retrieval, such as in digital logic circuits, microprocessor systems, and memory interfaces.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| DC Supply Voltage (VCC) | −0.5 to +6.5 | V | Referenced to GND |
| DC Input Voltage (VIN) | −0.5 to VCC +0.5 | V | Referenced to GND |
| Maximum Clock Frequency | 200 MHz | MHz | At VCC = 5.0 V, CL = 50 pF |
| Propagation Delay Clock to Output | 3.0 to 11.0 ns | ns | At VCC = 5.0 V, CL = 50 pF |
| Setup Time, Data to CP | 4.5 ns | ns | At VCC = 5.0 V |
| Hold Time, Data to CP | −2.5 to 2.0 ns | ns | At VCC = 5.0 V |
| Output Sink/Source Current | ±50 mA | mA | |
| Storage Temperature Range | −65 to +150 °C | °C |
Key Features
- Ideal buffer for MOS microprocessor or memory applications
- Eight edge-triggered D-type flip-flops with individual D inputs and Q outputs
- Buffered common Clock (CP) input
- Buffered, asynchronous Master Reset (MR) input
- TTL compatible inputs for the MC74ACT273 version
- Outputs source/sink 24 mA
- Pb-free devices
Applications
The MC74ACT273NG is suitable for various digital logic and memory applications, including:
- Microprocessor systems where synchronized data storage is required
- Memory interfaces and data buffers
- Digital logic circuits requiring edge-triggered flip-flops
- Any system needing asynchronous reset capabilities
Q & A
- What is the maximum clock frequency of the MC74ACT273NG?
The maximum clock frequency is 200 MHz at VCC = 5.0 V and CL = 50 pF.
- What is the propagation delay from clock to output?
The propagation delay from clock to output ranges from 3.0 to 11.0 ns at VCC = 5.0 V and CL = 50 pF.
- What is the setup time for the data input relative to the clock pulse?
The setup time is 4.5 ns at VCC = 5.0 V.
- What is the hold time for the data input relative to the clock pulse?
The hold time is −2.5 to 2.0 ns at VCC = 5.0 V.
- What is the maximum output sink/source current?
The maximum output sink/source current is ±50 mA.
- Is the MC74ACT273NG Pb-free?
- What are the package options for the MC74ACT273NG?
The device is available in SOIC-20WB and TSSOP-20 packages.
- What is the storage temperature range for the MC74ACT273NG?
The storage temperature range is −65 to +150 °C.
- Does the MC74ACT273NG have TTL compatible inputs?
- What is the function of the Master Reset (MR) input?
The Master Reset (MR) input resets all flip-flops to a LOW state when it is set to a LOW voltage level, regardless of the clock or data inputs).
