PCF2131 | Nano-Power Highly Accurate Real Time Clock | NXP Semiconductors

Nano-Power Highly Accurate RTC with Integrated Quartz Crystal

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Block Diagram

PCF2131

PCF2131 Block Diagram

Features

Nano-Power Device

  • Clock operating voltage from 1.2 V to 5.5 V
  • Supply current of 64 nA @ VDD = 3.3 V (typical)

Highly Accurate Real Timing

  • ±3 ppm from -40 °C to +85 °C (typical)
  • ±8 ppm from -40 °C to +85 °C (worst)

Integrated Quartz Crystal and Oscillator

  • 32.768 kHz quartz crystal
  • Temperature compensated crystal oscillator (TCXO)

Battery Back Up Supported

  • Battery backup input pin and switch-over circuitry
  • Battery backed output voltage
  • Battery low detection function

Timestamp and Interrupt Functionality

  • 4x Time stamp inputs with independent registers
  • 2x Interrupt pin with selectable interrupt source

Multiple Interfaces Supported

  • I²C-bus support (400 kHz fast-mode)
  • SPI-bus (maximum speed 6.5 Mbit/s)

Calendar Capabilities

  • Provide year, month, day, weekday, hours, minutes, seconds and 1/100 seconds
  • Leap year correction

Buy/Parametrics

1 result

Include 0 NRND

Order

CAD Model

Status

RTC Type

Accuracy (Typ) (+/- ppm)

Supply Voltage [Min to Max] (V)

Low Supply Current (μA)

Communication protocol

Battery Back Up

Watchdog timer

Programmable alarm

Countdown Timer

Tamper Input

Interrupt Output

Integrated Temperature Compensation

AEC-Q100 compliant

Package Type

Package Dimensions (LxWxZ (mm))

Operating Temperature (Min-Max) (℃)

Budgetary Price excluding tax

Active

Module

3

1.2 to 5.5

0.06

SPI

Yes

Y

Y

N

4

2

Y

N

HLSON16

4.5 x 3.5 x 1.45

-40 to 85

1K @ US$1.19

Documentation

Quick reference to our documentation types

3 documents

Compact List

Design Files

Hardware

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1-5 of 6 hardware offerings

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Software

Quick reference to our software types.

2 software files

  • BSPs and Device Drivers

    PCF2131 Real-Time Clock Driver with Demo App (SDK)

  • BSPs and Device Drivers

    PCF2131 Real-Time Clock - Application Code Hub

Note: For better experience, software downloads are recommended on desktop.

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