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MM74HC221ASJ on a board, in 3D

MM74HC221ASJ

onsemi

-40℃~+85℃ 2 22ns 2V~6V 5.2mA 5.2mA 74HC Monostable Reset input、Dual edge triggering Schmitt trigger SO-16P Monostable Multivibrators ROHS

Extended
DatasheetJLCPCBLCSConsemi/MM74HC221ASJ
Category
Monostable Multivibrators
Package
SO-16P
Pins
16

Overview

The MM74HC221ASJ is a monostable Multivibrator made by onsemi in a SO-16P package with 16 pins. -40℃~+85℃ 2 22ns 2V~6V 5.2mA 5.2mA 74HC Monostable Reset input、Dual edge triggering Schmitt trigger SO-16P Monostable Multivibrators ROHS.

PCBKit's library has its KiCad symbol (74xx:74LS221, from KiCad's library) and its footprint (EasyEDA_Cloud:SO-16_L10.2-W5.3-P1.27-LS7.8-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3234059).

Symbol

A1B2CLR3Q4Q13Cext14RCext15
74xx:74LS221From KiCad's library

Footprint

12345678910111213141516
EasyEDA_Cloud:SO-16_L10.2-W5.3-P1.27-LS7.8-BLFrom EasyEDA

Parameters

10
Current - Output High(IOH)
5.2mA
Current - Output Low(IOL)
5.2mA
Function
复位输入；双边沿触发
Input Type
Schmitt trigger
Logic Family
74HC
Logic Type
Monostable
Number Of Channels
2
Operating Temperature
-40℃~+85℃
Propagation Delay
22ns
Voltage - Supply
2V~6V

Order codes

1

Pinout

16
The pins of the MM74HC221ASJ
PinNameType
1AInput
2BInput
3CLRInput
4QOutput
5QOutput
6CextInput
7RCextInput
8GNDPower in
9AInput
10BInput
11CLRInput
12QOutput
13QOutput
14CextInput
15RCextInput
16VCCPower in

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Questions

Is there a KiCad symbol and footprint for the MM74HC221ASJ?

Yes. The symbol is 74xx:74LS221 and the footprint EasyEDA_Cloud:SO-16_L10.2-W5.3-P1.27-LS7.8-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MM74HC221ASJ?

SO-16P, with 16 pins. Its footprint is drawn on this page.

Where is the MM74HC221ASJ datasheet?

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

Where can I order the MM74HC221ASJ?

JLCPCB lists it as part C3234059, with 0 in stock; the sellers' links on this page open their listings.

What can replace the MM74HC221ASJ?

Parts like it in the library: the 74VHC123ASJ by onsemi, the 74VHC123ASJX by onsemi, the 74VHC221ASJ by onsemi and the MM74HC123ASJX by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

4