NXP PCF2129AT/2,518, Real Time Clock (RTC), 128 bit, 128 bit RAM, 20, 20-Pin SO20, SO20

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Subtotal 50 units (supplied on a continuous strip)*

£203.40

(exc. VAT)

£244.10

(inc. VAT)

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  • 2,025 unit(s) ready to ship
  • Plus 999,997,970 unit(s) shipping from 11 November 2026
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Units
Per unit
50 - 95£4.068
100 - 245£3.984
250 - 995£3.906
1000 +£3.828

*price indicative

Packaging Options:
RS Stock No.:
219-4633P
Mfr. Part No.:
PCF2129AT/2,518
Brand:
NXP
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Brand

NXP

User RAM

128 bit, 128 bit

Package Type

SO20, SO20

Pin Count

20, 20

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

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