Housed in a tiny leadless package and available with a mix of advanced options, this
energy-efficient RTC lets you put full-featured timing functions in a very small space.
NXP RTC
PCF85063
Miniaturized, state-of-the-art RTC
KEY FEATURES
` Tiny leadless package with 0.5 mm pitch
` Standard SO8 and TSSOP8 packages for industrial
applications
` Time and date from seconds to years
` Electronic frequency tuning via command
` Supports interrupts every 30 or 60 seconds
` General-purpose RAM byte
` Clock out from 1 Hz to 32.768 kHz
` Oscillator option for low-power quartz (CL = 7 pF)
` Large voltage operating range (V
DD
= 0.9 to 5.5 V)
` Ideal for battery-powered operation (I
DD
= ~0.2 µA)
APPLICATIONS
` Inkjet and laser printers
` Self-care medical devices
` Digital still and video cameras
` Handheld and mobile devices
` Gaming, toys
` Industrial equipment
` Home automation
` Alarm systems
` Eco-friendly heating control
` Printers, copiers
The NXP PCF85063 offers precise timing in a small, low-power
format and is well suited for a wide range of applications.
It can be used to perform the standard functions of a real-
time clock (RTC), tracking the actual time and date or acting
as a reference timer. To support power management, the
PCF85063 can be used to wake the microcontroller from
hibernation mode, and in systems that use a PLL, it can serve
as a system reference clock for the PLL input. The PCF85063
can also be used as a Watchdog or countdown timer, or as
an activation timer to start measurements or initiate other
functions.
There are several versions available. The -TP version tracks
time and date and has an I
2
C Fast-mode (Fm) interface. It offers
electronic tuning and can be configured for a frequency output
or an interrupt every 30 or 60 seconds, and is housed in a tiny
HWSON-8 package that measures only 2 x 3 x 0.8 mm.
www.nxp.com
© 2014 NXP Semiconductors N.V.
All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The
information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and
may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof
does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Date of release: January 2014
Document order number: 9397 750 17502
Printed in the Netherlands
The -AT, -ATT, -ATL, and -BTL versions add an alarm facility, a
countdown timer, and a clock-out enable input pin.
The -BTL version replaces the I
2
C Fm interface with a 3-line SPI
interface.
DEMO BOARDS
The PCF85063 is supported by two demo boards. The
OM11059A is for versions that use the I
2
C-bus, and the
OM11059 is for the SPI-bus version. Both boards are shipped
ready to use, with a quartz. All the designer needs to do to
begin work is supply power and use the serial interface to
initiate communications.
PCF85063
CLKOUT
CLKOEOSCO
VDD
VSS
SDA
SCL
OSCI
INT
DIVIDER
32 kHz
OSCILLATOR
POWER-ON
RESET
l
2
C-BUS
INTERFACE
CLOCK OUT
INTERRUPT
CONTROL
REAL-TIME
CLOCK
SYSTEM
CONTROL
ALARM AND
TIMER
CONTROL
CLOCK
CALIBRATION
OFFSET
SPI-BUS
INTERFACE
SDIO
CE
(1)
(2)
(3)
(1)
(1) PCF85063ATL and PCF85063BTL only
(2) PCF85063ATL and PCF85063TP only
(3) PCF85063BTL only
PCF85063 block diagram
PCF85063 application
PCF85063 demo board SPI (OM11059)
PCF85063 demo board I
2
C (OM11059A)
Product number PCF85063AT PCF85063ATT PCF85063TP PCF85063ATL PCF8506BTL
Alarm facility X X - X X
Count down timer X X - X X
Clock –out enable Via command Via command Via command
Via command or input
pin
Via command or input
pin
I
2
C-bus (Fast-mode 400 kHz) X X X X -
SPI bus (3 lines, 7 MHz) - - - - X
Package SO8 TSSOP8
HWSON8
2 x 3 x 0.8 mm
DFN2626-10
2.6 x 2.6 x 0.5 mm
DFN2626-10
2.6 x 2.6 x 0.5 mm