PCA8565BS: Real time clock/calendar ARCHIVED

Overview

Archived content is no longer updated and is made available for historical reference only.

The PCA8565 is a CMOS real time clock and calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage-low detector are also provided. All address and data are transferred serially via a two-line bidirectional I²C-bus. Maximum bus speed is 400 kbit/s. The built-in word address register is incremented automatically after each written or read data byte.

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Features

AEC-Q100 compliant (PCA8565TS) for automotive applications
Provides year, month, day, weekday, hours, minutes and seconds based on a 32.768 kHz quartz crystal
Clock operating voltage: 0.9 V to 5.5 V at room temperature
Extended operating temperature range: -40 °C to +125 °C
Low current; typical 0.65 μA at V_DD = 3.0 V and T_amb = 25 °C
400 kHz two-wire I²C-bus interface (at V_DD = 1.8 V to 5.5 V)
Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz and 1 Hz)
Alarm and timer functions
Internal power-on reset
I²C-bus target address: read A3h and write A2h
Open-drain interrupt pin
One integrated oscillator capacitor

Target Applications

Automotive
Industrial
Other applications that require a wide operating temperature range

MoreLess

Features

AEC-Q100 compliant (PCA8565TS) for automotive applications
Provides year, month, day, weekday, hours, minutes and seconds based on a 32.768 kHz quartz crystal
Clock operating voltage: 0.9 V to 5.5 V at room temperature
Extended operating temperature range: -40 °C to +125 °C
Low current; typical 0.65 μA at V_DD = 3.0 V and T_amb = 25 °C
400 kHz two-wire I²C-bus interface (at V_DD = 1.8 V to 5.5 V)
Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz and 1 Hz)
Alarm and timer functions
Internal power-on reset
I²C-bus target address: read A3h and write A2h
Open-drain interrupt pin
One integrated oscillator capacitor

Target Applications

Automotive
Industrial
Other applications that require a wide operating temperature range

Data Sheets

Application Notes

sot650-1_3d

sot650-1_3d

sot650-1_3d

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