Overview
The MC74AC273DW, produced by Onsemi, is an octal D flip-flop integrated circuit. This device features eight edge-triggered D-type flip-flops, each with individual D inputs and Q outputs. The flip-flops are controlled by a common buffered Clock (CP) and Master Reset (MR) input, allowing for simultaneous loading and resetting of all flip-flops. This makes the device particularly useful in applications where synchronized data storage and retrieval are necessary.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | −0.5 to +6.5 | V |
| DC Input Voltage (VIN) | −0.5 to VCC + 0.5 | V |
| DC Output Voltage (VOUT) | −0.5 to VCC + 0.5 | V |
| Minimum High Level Input Voltage (VIH) | 2.1 to 3.85 | V |
| Maximum Low Level Input Voltage (VIL) | 0.9 to 1.65 | V |
| Minimum High Level Output Voltage (VOH) | 2.9 to 5.49 | V |
| DC Output Sink/Source Current (IOUT) | ±50 | mA |
| Storage Temperature Range (TSTG) | −65 to +150 | °C |
| Lead Temperature (TL) | 260 | °C |
| Junction Temperature Under Bias (TJ) | 140 | °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.
- Outputs source/sink 24 mA.
- The ′ACT273 version has TTL compatible inputs.
- Pb-free devices.
Applications
The MC74AC273DW is suitable for various applications where synchronized data storage and retrieval are critical. These include:
- MOS microprocessor and memory systems.
- Digital logic circuits requiring edge-triggered flip-flops.
- Systems needing common clock and reset signals for multiple storage elements.
Q & A
- What is the MC74AC273DW?
The MC74AC273DW is an octal D flip-flop integrated circuit with eight edge-triggered D-type flip-flops.
- What are the key inputs and outputs of the MC74AC273DW?
The device has individual D inputs and Q outputs, a common buffered Clock (CP) input, and a Master Reset (MR) input.
- How does the Master Reset (MR) input function?
The MR input forces all outputs to LOW independently of the Clock or Data inputs when it is at a LOW voltage level.
- What are the typical applications of the MC74AC273DW?
It is used in MOS microprocessor and memory systems, digital logic circuits, and systems requiring common clock and reset signals.
- What is the maximum DC supply voltage for the MC74AC273DW?
The maximum DC supply voltage (VCC) is +6.5 V.
- What is the storage temperature range for the MC74AC273DW?
The storage temperature range is −65 to +150 °C.
- Does the MC74AC273DW have TTL compatible inputs?
The ′ACT273 version of the device has TTL compatible inputs.
- What is the maximum output current for the MC74AC273DW?
The device can source or sink up to 50 mA per output pin.
- Is the MC74AC273DW a Pb-free device?
- What package types are available for the MC74AC273DW?
The device is available in SOIC-20W and TSSOP-20 packages.
