# AB1805-T3 (Component)
## Description
Real Time Clock (RTC) IC Clock/Calendar 256B I²C, 2-Wire Serial 16-VFQFN Exposed Pad
#Timer #RTC
#commonpartslibrary
## Component Details
- **Owner:** vasyl
- **Created:** 12/10/2021
- **Last Updated:** 1/23/2023
- **Visibility:** Public
- **Manufacturer Part Number:** AB1805-T3
- **Datasheet URL:** https://abracon.com/Precisiontiming/AB18X5-RTC.pdf
- **Part Type:** Integrated Circuit
- **Manufacturer Name:** Abracon LLC
## 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/ab1805-t3/abracon.html?utm_currency=USD®ion=nac) | $0.262 | 885 |
| [Digi-Key](https://www.digikey.com/en/products/detail/abracon-llc/AB1805-T3/3661496) | $2.19 | 16K |
| [LCSC](https://www.lcsc.com/product-detail/C2649355.html) | $2.3485 | 2.3K |
| [Mouser](https://www.mouser.com/ProductDetail/ABRACON/AB1805-T3?qs=CdqkW%252BVHFkEByOMIiZnWiA%3D%3D) | $1.97 | 14K |
| [Verical](https://www.verical.com/pd/abracon-real-time-clock-AB1805-T3-1999228?utm_currency=USD) | N/A | N/A |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Abracon
- **MPN:** AB1805-T3
- **Mount Type:** Wire
- **Pin Count:** 17
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | ~RST | |
| 2 | WDI | |
| 3 | ~EXTR | |
| 4 | ~IRQ2 | |
| 5 | VBAT | |
| 6 | SDA | |
| 7 | SCL | |
| 8 | CLKOUT/~IRQ3 | |
| 9 | VSS | |
| 10 | EXTI | |
| 11 | FOUT/~IRQ | |
| 12 | ~TIRQ | |
| 13 | VCC | |
| 14 | AF | |
| 15 | XO | |
| 16 | XI | |
| 17 | VSS | |
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*Generated from [https://www.flux.ai/vasyl/ab1805-t3](https://www.flux.ai/vasyl/ab1805-t3)*