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NXP Semiconductors Electronic Components Datasheet

PCF85363A Datasheet

Tiny Real-Time Clock/calendar

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PCF85363A
Tiny Real-Time Clock/calendar with 64 byte RAM, alarm
function, battery switch-over time stamp input, and I2C-bus
Rev. 1 — 10 July 2014
Product data sheet
1. General description
The PCF85363A is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low
power consumption and with automatic switching to battery on main power loss. The RTC
can also be configured as a stop-watch (elapsed time counter). Three time log registers
triggered from battery switch-over as well as input driven events. Featuring clock output
and two independent interrupt signals, two alarms, I2C interface and quartz crystal
calibration, 64 byte battery backed-up RAM.
For a selection of NXP Real-Time Clocks, see Table 72 on page 86
2. Features and benefits
Provides year, month, day, weekday, hours, minutes, seconds and 100th seconds
based on a 32.768 kHz quartz crystal
Stop-watch mode for elapsed time counting. From 100th seconds to 999999 hours
Two independent alarms
Battery back-up circuit
WatchDog timer
Three timestamp registers
Two independent interrupt generators plus predefined interrupts at every second,
minute, or hour
64 byte battery backed-up RAM
Frequency adjustment via programmable offset register
Clock operating voltage: 0.9 V to 5.5 V
Low current; typical 0.28 A at VDD = 3.0 V and Tamb = 25 C
400 kHz two-line I2C-bus interface (at VDD = 1.8 V to 5.5 V)
Programmable clock output for peripheral devices (32.768 kHz, 16.384 kHz,
8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz)
Configurable oscillator circuit for a wide variety of quartzes: CL = 6 pF, CL = 7 pF, and
CL = 12.5 pF
3. Applications
Elapsed time counter
Printers and copiers
Network powered devices
Battery backed up systems
1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 23.


NXP Semiconductors Electronic Components Datasheet

PCF85363A Datasheet

Tiny Real-Time Clock/calendar

No Preview Available !

NXP Semiconductors
PCF85363A
Tiny RTC with 64 byte RAM, alarm, battery switch-over and I2C-bus
Digital voice recorders
Mobile equipment
Digital cameras
Data loggers
White goods
Accurate high duration timer
4. Ordering information
Table 1. Ordering information
Type number
Package
Name
Description
Version
PCF85363ATL
DFN2626-10 plastic thermal enhanced extremely thin SOT1197-1
small outline package; no leads;
10 terminals; body 2.6 2.6 0.5 mm
PCF85363ATT[1]
TSSOP8
plastic thin shrink small outline package; SOT505-1
8 leads; body width 3 mm
PCF85363ATT1[1]
TSSOP10
plastic thin shrink small outline package; SOT552-1
10 leads; body width 3 mm
[1] Under development.
4.1 Ordering options
Table 2. Ordering options
Product type number Orderable part number Sales item
(12NC)
Delivery form
PCF85363ATL/A
PCF85363ATL/AX
935304648115 tape and reel, 7 inch
PCF85363ATT/A
PCF85363ATT/AJ
935304751118 tape and reel, 13 inch
PCF85363ATT1/A
PCF85363ATT1/AJ
935304752118 tape and reel, 13 inch
IC
revision
1
1
1
5. Marking
Table 3. Marking codes
Product type number
PCF85363ATL/A
PCF85363ATT/A
PCF85363ATT1/A
Marking code
363A
363A
363A
PCF85363A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 10 July 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
2 of 96


Part Number PCF85363A
Description Tiny Real-Time Clock/calendar
Maker NXP
Total Page 30 Pages
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