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MM74HC191N, in 3D

MM74HC191N

Texas Instruments

-40℃~+85℃ 1 22ns@6V,50pF 2V~6V 4 40MHz 600mW 74HC Asynchronous Divide-by-2 Programmable divide ratio、Cascade counter、Synchronous counting、Asynchronous parallel load、Multi-mode counting Rising Edge Synchronous Up Counter、Down Counter PDIP-16 Counters, Dividers

Extended
DatasheetJLCPCBLCSCti/MM74HC191N
Category
Counters, Dividers
Package
PDIP-16
Pins
5

Overview

The MM74HC191N is a counters, Divider made by Texas Instruments in a PDIP-16 package with 16 pins. -40℃~+85℃ 1 22ns@6V,50pF 2V~6V 4 40MHz 600mW 74HC Asynchronous Divide-by-2 Programmable divide ratio、Cascade counter、Synchronous counting、Asynchronous parallel load、Multi-mode counting Rising Edge Synchronous Up Counter、Down Counter PDIP-16 Counters, Dividers.

PCBKit's library has its KiCad symbol (74xx:74LS191, from KiCad's library) and its footprint (Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3828429).

Symbol

P11Q12Q03Ce4D/U5Q26Q37GND8P39P210Pl11Tc12Rc13Cp14P015VCC16
74xx:74LS191From KiCad's library

Footprint

12345678910111213141516
Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPadsFrom KiCad's library

Parameters

14
Count Rate
40MHz
Direction
Down Counter；Up Counter
Features
Programmable divide ratio；Asynchronous parallel load；Cascade counter；Synchronous counting；Multi-mode counting
Logic Type
Divide-by-2
Number of Elements
1
Operating Temperature
-40℃~+85℃
Power Dissipation
600mW
Propagation Delay
22ns@6V,50pF
Reset
Asynchronous
Resolution
4
Series
74HC
Timing
Synchronous
Trigger Type
Rising Edge
Voltage - Supply
2V~6V

Order codes

1

Pinout

16
The pins of the MM74HC191N
PinNameType
1P1Input
2Q1Output
3Q0Output
4CeInput
5D/UInput
6Q2Output
7Q3Output
8GNDPower in
9P3Input
10P2Input
11PlInput
12TcOutput
13RcOutput
14CpInput
15P0Input
16VCCPower in

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Questions

Is there a KiCad symbol and footprint for the MM74HC191N?

Yes. The symbol is 74xx:74LS191 and the footprint Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MM74HC191N?

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

Where is the MM74HC191N datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the MM74HC191N?

JLCPCB lists it as part C3828429, with 0 in stock; the sellers' links on this page open their listings.

What can replace the MM74HC191N?

Parts like it in the library: the CD4040BE by HGSEMI, the NTE74HC161 by NTE Electronics, the CD40192BCN by onsemi and the CD4020BCN by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.

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