NXP PCF2129T/2,518, Real Time Clock 128 bit Real Time Clock D:W:M:Y, 16-Pin SO-16 Surface

This image is representative of the product range

View all Real Time Clocks
Bulk discount available

Subtotal (1 pack of 5 units)*

PHP1,517.04

(exc. VAT)

PHP1,699.085

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • Plus 625 unit(s) shipping from February 23, 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per Unit
Per Pack*
5 - 45PHP303.408PHP1,517.04
50 - 95PHP297.314PHP1,486.57
100 - 245PHP291.434PHP1,457.17
250 - 495PHP285.556PHP1,427.78
500 +PHP279.898PHP1,399.49

*price indicative

Packaging Options:
RS Stock No.:
219-4635
Mfr. Part No.:
PCF2129T/2,518
Manufacturer:
NXP
Find similar products by selecting one or more attributes.
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-16

Pin Count

16

Minimum Operating Temperature

-40°C

RTC Memory Size

128bit

Maximum Operating Temperature

85°C

Series

PCF2129

Length

12.8mm

Width

7.5 mm

Height

2.65mm

Standards/Approvals

No

Minimum Supply Voltage

1.8V

Maximum Supply Voltage

4.2V

Automotive Standard

No

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