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CD74AC191E on a board, in 3D

CD74AC191E

Texas Instruments

-55℃~+125℃ 1.5V~5.5V 12.8ns@5V,50pF 4 68MHz 74AC Asynchronous Binary Counter Cascade counter、Synchronous counting、Asynchronous parallel load、Multi-mode counting Rising Edge Synchronous Up Counter、Down Counter DIP-16 Counters, Dividers

Extended
DatasheetJLCPCBLCSCti/CD74AC191E
Category
Counters, Dividers
Package
DIP-16
Pins
5

Overview

The CD74AC191E is a counters, Divider made by Texas Instruments in a DIP-16 package with 16 pins. -55℃~+125℃ 1.5V~5.5V 12.8ns@5V,50pF 4 68MHz 74AC Asynchronous Binary Counter Cascade counter、Synchronous counting、Asynchronous parallel load、Multi-mode counting Rising Edge Synchronous Up Counter、Down Counter DIP-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 C3827791).

Symbol

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

Footprint

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

Parameters

12
Count Rate
68MHz
Direction
Down Counter；Up Counter
Features
Asynchronous parallel load；Cascade counter；Synchronous counting；Multi-mode counting
Logic Type
Binary Counter
Operating Temperature
-55℃~+125℃
Propagation Delay
12.8ns@5V,50pF
Reset
Asynchronous
Resolution
4
Series
74AC
Timing
Synchronous
Trigger Type
Rising Edge
Voltage - Supply
1.5V~5.5V

Order codes

1

Pinout

16
The pins of the CD74AC191E
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 CD74AC191E?

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 CD74AC191E?

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

Where is the CD74AC191E datasheet?

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

Where can I order the CD74AC191E?

JLCPCB lists it as part C3827791, with 0 in stock; the sellers' links on this page open their listings.

What can replace the CD74AC191E?

Parts like it in the library: the CD4017BED by GREENMICRO, the CD4017CN by HGSEMI, the CD4518BE by HGSEMI and the CD4520BE by HGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8