# SN74LS191NSR (Component)
## Description
Counters / Dividers
SN74LS191NSR
SO-16_L10.2-W5.3-P1.27-LS7.8-BL-1
LCSC Part Number: C2867858
JLCPCB Part Class: undefined
Manufactured by TI(德州仪器)
## Component Details
- **Owner:** lcsc
- **Created:** 11/4/2024
- **Last Updated:** 11/4/2024
- **Visibility:** Public
- **Manufacturer Part Number:** SN74LS191NSR
- **LCSC Part Number:** C2867858
- **Package or Case Code:** SO-16_L10.2-W5.3-P1.27-LS7.8-BL-1
- **Manufacturer Name:** TI(德州仪器)
- **Part Type:** Counters / Dividers
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/sn74ls191nsr/texas-instruments.html?utm_currency=USD®ion=nac) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/C2867858.html) | $0.6612 | 0 |
| [Mouser](https://www.mouser.com/en/ProductDetail/Texas-Instruments/SN74LS191NSR?qs=SL3LIuy2dWywRfYmEPSpHA%3D%3D) | $1.28 | 3.2K |
| [Verical](https://www.verical.com/pd/texas-instruments-arithmetic---counter-shift-reg-SN74LS191NSR-878436?utm_currency=USD) | N/A | N/A |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Texas Instruments
- **MPN:** SN74LS191NSR
- **Mount Type:** PCB
- **Package / Case Code:** 16-SO
- **Pin Count:** 16
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | B | |
| 2 | QB | |
| 3 | QA | |
| 4 | ~{CTEN} | |
| 5 | D/~{U} | |
| 6 | QC | |
| 7 | QD | |
| 8 | GND | |
| 9 | D | |
| 10 | C | |
| 11 | ~{LOAD} | |
| 12 | MAX/MIN | |
| 13 | ~{RCO} | |
| 14 | CLK | |
| 15 | A | |
| 16 | VCC | |
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*Generated from [https://www.flux.ai/lcsc/sn74ls191nsr~xhnw](https://www.flux.ai/lcsc/sn74ls191nsr~xhnw)*