PCA8565
Real time clock/calendar
Rev. 4 — 5 December 2014
Product data sheet
1. General description
The PCA8565 is a CMOS1 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.
For a selection of NXP Real-Time Clocks, see Table 36 on page 40
2. Features and benefits
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 A at VDD = 3.0 V and Tamb = 25 C
400 kHz two-wire I2C-bus interface (at VDD = 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 slave address: read A3h and write A2h
Open-drain interrupt pin
One integrated oscillator capacitor
3. Applications
Automotive
Industrial
Other applications that require a wide operating temperature range
1.
The definition of the abbreviations and acronyms used in this data sheet can be found in Section 22.
PCA8565
NXP Semiconductors
Real time clock/calendar
4. Ordering information
Table 1.
Ordering information
Type number
Package
PCA8565TS
Name
Description
Version
TSSOP8
plastic thin shrink small outline package; 8 leads;
body width 3 mm
SOT505-1
4.1 Ordering options
Table 2.
Ordering options
Product type number
Orderable part number Sales item
(12NC)
Delivery form
IC
revision
PCA8565TS/1
PCA8565TS/1,118
935272132118
tape and reel, 13 inch
1
PCA8565TS/S410/1
PCA8565TS/S410/1,5
935273247518
tape and reel, 13 inch, dry pack
1
5. Marking
Table 3.
PCA8565
Product data sheet
Marking codes
Type number
Marking code
PCA8565TS
8565
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 5 December 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
2 of 48
PCA8565
NXP Semiconductors
Real time clock/calendar
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