74AHC273 Datasheet – Octal D-type Flip-flop ( PDF )

Part Number: 74AHC273

Function: Octal D-type flip-flop with reset; positive-edge trigger

Package: SO, TSSOP 20, DHVQFN20 Pin Type

Manufacturer: NXP Semiconductors.

Image and Pinouts:

74AHC273 datasheet



The device is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7-A. The 74AHC273, 74AHCT273 has eight edge-triggered, D-type flip-flops with individual D inputs and Q outputs.

The common clock (CP) and master reset (MR) inputs, load and reset (clear) all flip-flops simultaneously. The state of each D input, one set-up time before the LOW-to-HIGH clock transition, is transferred to the corresponding output (Qn) of the flip-flop.

All outputs will be forced LOW, independent of clock or data inputs, by a LOW on theMR input. The device is useful for applications where only the true output is required and the clock and master reset are common to all storage elements.


1. Balanced propagation delays

2. All inputs have Schmitt-trigger actions

3. Inputs accept voltages higher than VCC

4. Ideal buffer for MOS microcontroller or memory

5. Common clock and master reset


Other data sheets are available within the file:

74AHC273BQ, 74AHC273D, 74AHC273PW, 74AHCT273

74AHC273 Datasheet PDF Download

74AHC273 pdf