Overview
The SN74HC191D is a counters, Divider made by Texas Instruments in a SOIC-16 package with 16 pins. -40℃~+85℃ 1 24MHz 2V~6V 4 45ns Asynchronous Divide-by-2 Rising Edge Synchronous Up Counter、Down Counter SOIC-16 Counters, Dividers ROHS.
PCBKit's library has its KiCad symbol (74xx:74LS191, from KiCad's library) and its footprint (Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 981 are in stock at JLCPCB (part C484752).
Symbol
Footprint
Parameters
13- Count Rate
- 24MHz
- Direction
- Down Counter
- Features
- Multi-mode counting
- Logic Type
- Divide-by-2
- Number of Elements
- 1
- Operating Temperature
- -40℃~+85℃
- Propagation Delay
- 45ns
- Reset
- Asynchronous
- Resolution
- 4
- Series
- 74HC
- Timing
- Synchronous
- Trigger Type
- Rising Edge
- Voltage - Supply
- 2V~6V
Order codes
4- SN74HC191DLCSC C1547994
- SN74HC191DTLCSC C1879803
- SN74HC191DRG4LCSC C2675473
- SN74HC191DRLCSC C484752
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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Is there a KiCad symbol and footprint for the SN74HC191D?
Yes. The symbol is 74xx:74LS191 and the footprint Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SN74HC191D?
SOIC-16, with 16 pins. Its footprint is drawn on this page.
Where is the SN74HC191D datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74HC191D?
JLCPCB lists it as part C484752, with 981 in stock; the sellers' links on this page open their listings.
What can replace the SN74HC191D?
Parts like it in the library: the CD4017BM96 by Texas Instruments, the HEF4060BT by Nexperia, the MC14060BD by onsemi and the CD4060BDTR(XBLW) by XBLW. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
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