PCF2127 devices are "Not Recommended for New Designs", please use the replacement part PCA2131TF
The PCF2127 is a CMOS 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 PCF2127 has 512 bytes of general-purpose static RAM, a selectable I²C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function, a timestamp function, and many other features.
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Include 0 NRND
Part | Order | CAD Model | resolution | Interface | VDD (interface) | watchdog timer | Programmable alarm | countdown timer | Special features | VDD (clock) | leap year tracking | IDD (nA) | temperature compensation | AEC-Q100 compliant |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 sec to year | I2C, SPI | 1.8 to 4.2 | yes | yes | yes | 512Byte RAM | 1.8 to 4.2 | yes | 700 | yes | no | |||
1 sec to year | I2C, SPI | 1.8 to 4.2 | yes | yes | yes | 512Byte RAM | 1.8 to 4.2 | yes | 700 | yes | no |
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