NXP PCF2129AT/2,518, Real Time Clock 128 bit Real Time Clock D:W:M:Y, 20-Pin SO-20 Surface
- RS Stock No.:
- 219-4633
- Mfr. Part No.:
- PCF2129AT/2,518
- Brand:
- NXP
Bulk discount available
View bulk pricing optionsSubtotal (1 pack of 5 units)*
£20.75
(exc. VAT)
£24.90
(inc. VAT)
FREE delivery for orders over £60.00
In Stock
- Plus 1,875 unit(s) shipping from 01 June 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Pack* |
|---|---|---|
| 5 - 45 | £4.15 | £20.75 |
| 50 - 95 | £4.068 | £20.34 |
| 100 - 245 | £3.984 | £19.92 |
| 250 - 995 | £3.906 | £19.53 |
| 1000 + | £3.828 | £19.14 |
*price indicative
- RS Stock No.:
- 219-4633
- Mfr. Part No.:
- PCF2129AT/2,518
- Brand:
- NXP
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | NXP | |
| Product Type | Real Time Clock | |
| Date Format | D:W:M:Y | |
| Time Format | SS:MM:HH | |
| Sub Type | Real Time Clock | |
| Mount Type | Surface | |
| Package Type | SO-20 | |
| Pin Count | 20 | |
| Minimum Operating Temperature | -40°C | |
| RTC Memory Size | 128bit | |
| Maximum Operating Temperature | 85°C | |
| Standards/Approvals | No | |
| Length | 12.8mm | |
| Series | PCF2129 | |
| Height | 2.65mm | |
| Maximum Supply Voltage | 4.2V | |
| Automotive Standard | No | |
| Minimum Supply Voltage | 1.8V | |
| Select all | ||
|---|---|---|
Brand NXP | ||
Product Type Real Time Clock | ||
Date Format D:W:M:Y | ||
Time Format SS:MM:HH | ||
Sub Type Real Time Clock | ||
Mount Type Surface | ||
Package Type SO-20 | ||
Pin Count 20 | ||
Minimum Operating Temperature -40°C | ||
RTC Memory Size 128bit | ||
Maximum Operating Temperature 85°C | ||
Standards/Approvals No | ||
Length 12.8mm | ||
Series PCF2129 | ||
Height 2.65mm | ||
Maximum Supply Voltage 4.2V | ||
Automotive Standard No | ||
Minimum Supply Voltage 1.8V | ||
The NXP PCF2129 is a CMOS1 real time clock (RTC) and calendar with an integrated temperature compensated crystal (Xtal) oscillator (TCXO) and a 32.768 kHz quartz crystal optimized for very high accuracy and very low power consumption. The PCF2129 has a selectable I2C bus or SPI bus, a backup battery switch over circuit, a programmable watchdog function, a timestamp function, and many other features.
Battery backed output voltage
Battery low detection function
Related links
- NXP 20-Pin SO-20 Surface
- NXP PCF2129T/2 Real Time Clock 128 bit Real Time Clock D:W:M:Y, 16-Pin SO-16 Surface
- NXP 16-Pin SO-16 Surface
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- NXP 14-Pin TSSOP Surface
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