Overview
The MC74AC273DWR2G, produced by onsemi, is an octal D-type flip-flop integrated circuit. This device features eight edge-triggered D flip-flops, each with individual D inputs and Q outputs. The common buffered Clock (CP) and Master Reset (MR) inputs allow for simultaneous loading and resetting of all flip-flops. This component is particularly useful in applications where true output only is required and the Clock and Master Reset are common to all storage elements.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| VCC (DC Supply Voltage) | −0.5 to +6.5 | V | Referenced to GND |
| VIN (DC Input Voltage) | −0.5 to VCC + 0.5 | V | Referenced to GND |
| VOUT (DC Output Voltage) | −0.5 to VCC + 0.5 | V | Referenced to GND |
| VIH (Minimum High Level Input Voltage) | 3.0 to 5.5 | V | VCC = 3.0 to 5.5 V |
| VIL (Maximum Low Level Input Voltage) | 0.9 to 1.65 | V | VCC = 3.0 to 5.5 V |
| VOH (Minimum High Level Output Voltage) | 2.99 to 5.49 | V | IOUT = −50 μA |
| tPHL (Propagation Delay Clock to Output) | 3.0 to 12.0 | ns | TA = −40°C to +85°C, CL = 50 pF |
| tPHL (Propagation Delay MR to Output) | 3.0 to 11.5 | ns | TA = −40°C to +85°C, CL = 50 pF |
| ts (Setup Time, HIGH or LOW − Data to CP) | 3.0 to 6.0 | ns | TA = −40°C to +85°C, CL = 50 pF |
| th (Hold Time, HIGH or LOW − Data to CP) | −2.5 to 2.0 | ns | TA = −40°C to +85°C, CL = 50 pF |
| tw (Clock Pulse Width − HIGH or LOW) | 2.5 to 4.5 | ns | TA = −40°C to +85°C, CL = 50 pF |
| fmax (Maximum Clock Frequency) | 125 MHz | MHz | VCC = 5.0 V, CL = 50 pF |
Key Features
- Ideal Buffer for MOS Microprocessor or Memory
- Eight Edge-Triggered D Flip-Flops
- Buffered Common Clock (CP)
- Buffered, Asynchronous Master Reset (MR)
- Outputs Source/Sink 24 mA
- ′ACT273 Has TTL Compatible Inputs
- Pb-Free Devices
Applications
The MC74AC273DWR2G is suitable for various digital circuit applications, including:
- MOS Microprocessor and Memory Systems
- Digital Storage and Register Applications
- Clock and Reset Management in Digital Circuits
- Buffering and Latching in Digital Systems
Q & A
- What is the MC74AC273DWR2G?
The MC74AC273DWR2G is an octal D-type flip-flop integrated circuit produced by onsemi.
- How many D flip-flops does the MC74AC273DWR2G contain?
The device contains eight edge-triggered D-type flip-flops.
- What is the function of the Master Reset (MR) input?
The Master Reset input forces all outputs to LOW independently of the Clock or Data inputs.
- What are the typical propagation delays for the MC74AC273DWR2G?
The propagation delays range from 3.0 to 12.0 ns for Clock to Output and 3.0 to 11.5 ns for MR to Output.
- What is the maximum clock frequency for the MC74AC273DWR2G?
The maximum clock frequency is 125 MHz at VCC = 5.0 V and CL = 50 pF.
- Is the MC74AC273DWR2G Pb-free?
- What are the input voltage levels for the MC74AC273DWR2G?
The minimum high level input voltage (VIH) is 3.0 to 5.5 V, and the maximum low level input voltage (VIL) is 0.9 to 1.65 V.
- What is the output current capability of the MC74AC273DWR2G?
The outputs can source/sink up to 24 mA.
- What are the typical operating temperatures for the MC74AC273DWR2G?
The device operates over a temperature range of −40°C to +85°C.
- What are the package options for the MC74AC273DWR2G?
The device is available in SOIC-20WB and TSSOP-20 packages.
