MM74HCT273WM

onsemi

-40℃~+85℃ 37ns@5V,50pF 4.5V~5.5V 4.8mA 4.8mA 68MHz 6ns 6pF 74HCT Series 8uA Asynchronous D-Type Reset Rising Edge SOIC-20-300mil Flip Flops ROHS

Extended

Datasheetonsemi/MM74HCT273WM

Category: Flip Flops
Package: SOIC-20-300mil
Pins: 20

Overview

The MM74HCT273WM is a flip Flop made by onsemi in a SOIC-20-300mil package with 20 pins. -40℃~+85℃ 37ns@5V,50pF 4.5V~5.5V 4.8mA 4.8mA 68MHz 6ns 6pF 74HCT Series 8uA Asynchronous D-Type Reset Rising Edge SOIC-20-300mil Flip Flops ROHS.

PCBKit's library has its KiCad symbol (74xx:74HCT273, from KiCad's library) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. 25 are in stock at JLCPCB (part C906745).

Symbol

74xx:74HCT273From KiCad's library

Footprint

Package_SO:SOIC-20W_7.5x12.8mm_P1.27mmFrom KiCad's library

Parameters

Clock Frequency: 68MHz
Current - Output High(IOH): 4.8mA
Current - Output Low(IOL): 4.8mA
Function: Reset
Hold Time: 5ns
Input Capacitance: 6pF
Number of Bits per Element: 1
Number of Elements: 8
Operating Temperature: -40℃~+85℃
Propagation Delay: 37ns@5V,50pF
Quiescent Current: 8uA
Series: 74HCT Series
Setup Time: 6ns
Synchronous/Asynchronous: Asynchronous
Trigger Type: Rising Edge
Type: D-Type
Voltage - Supply: 4.5V~5.5V

Order codes

MM74HCT273WMLCSC C906745

Pinout

The pins of the MM74HCT273WM
Pin	Name	Type
1	Mr	Input
2	Q0	Output
3	D0	Input
4	D1	Input
5	Q1	Output
6	Q2	Output
7	D2	Input
8	D3	Input
9	Q3	Output
10	GND	Power in
11	Cp	Input
12	Q4	Output
13	D4	Input
14	D5	Input
15	Q5	Output
16	Q6	Output
17	D6	Input
18	D7	Input
19	Q7	Output
20	VCC	Power in

Show this part on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/parts/onsemi/MM74HCT273WM" title="MM74HCT273WM in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/parts/onsemi/MM74HCT273WM.jpg" alt="MM74HCT273WM" width="1200" height="900">

A picture that opens the part, for a README

[![MM74HCT273WM](https://pcbkit.io/embed/parts/onsemi/MM74HCT273WM.jpg?size=s)](https://pcbkit.io/parts/onsemi/MM74HCT273WM)

Questions

Is there a KiCad symbol and footprint for the MM74HCT273WM?

Yes. The symbol is 74xx:74HCT273 and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MM74HCT273WM?

SOIC-20-300mil, with 20 pins. Its footprint is drawn on this page.

Where is the MM74HCT273WM datasheet?

onsemi publishes it: the Datasheet link on this page opens it.

Where can I order the MM74HCT273WM?

JLCPCB lists it as part C906745, with 25 in stock; the sellers' links on this page open their listings.

What can replace the MM74HCT273WM?

Parts like it in the library: the MM74HCT273N by onsemi, the MM74HCT273MTC by onsemi, the MM74HCT273MTCX by onsemi and the MM74HCT273WMX by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.