CD74HCT191E
Texas InstrumentsExtended
-55℃~+125℃ 1 27ns@4.5V,50pF 30MHz 4.5V~5.5V 74HCT Asynchronous Cascade counter、Synchronous counting、Asynchronous parallel load、Multi-mode counting Divide-by-2 Rising Edge Synchronous Up Counter、Down Counter PDIP-16 Counters, Dividers ROHS
- Part id
- ti/CD74HCT191E
- Category
- Counters, Dividers
- Package
- PDIP-16
- Pins
- 16
- In stock
- 0 at JLCPCB (C1548001)
Overview
The CD74HCT191E is a counters, Divider made by Texas Instruments in a PDIP-16 package with 16 pins. -55℃~+125℃ 1 27ns@4.5V,50pF 30MHz 4.5V~5.5V 74HCT Asynchronous Cascade counter、Synchronous counting、Asynchronous parallel load、Multi-mode counting Divide-by-2 Rising Edge Synchronous Up Counter、Down Counter PDIP-16 Counters, Dividers ROHS.
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 C1548001).
Symbol
Footprint
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | P1 | Input |
| 2 | Q1 | Output |
| 3 | Q0 | Output |
| 4 | Ce | Input |
| 5 | D/U | Input |
| 6 | Q2 | Output |
| 7 | Q3 | Output |
| 8 | GND | Power in |
| 9 | P3 | Input |
| 10 | P2 | Input |
| 11 | Pl | Input |
| 12 | Tc | Output |
| 13 | Rc | Output |
| 14 | Cp | Input |
| 15 | P0 | Input |
| 16 | VCC | Power in |
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Questions
Is there a KiCad symbol and footprint for the CD74HCT191E?
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 CD74HCT191E?
PDIP-16, with 16 pins. Its footprint is drawn on this page.
Where is the CD74HCT191E datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the CD74HCT191E?
JLCPCB lists it as part C1548001, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CD74HCT191E?
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.