PCF8563
Real-time clock/calendar
Rev. 11 — 26 October 2015
Product data sheet
1. General description
The PCF8563 is a CMOS
1
Real-Time Clock (RTC) and calendar optimized for low power
consumption. A programmable clock output, interrupt output, and voltage-low detector are
also provided. All addresses and data are transferred serially via a two-line bidirectional
I
2
C-bus. Maximum bus speed is 400 kbit/s. The register address is incremented
automatically after each written or read data byte.
2. Features and benefits
Provides year, month, day, weekday, hours, minutes, and seconds based on a
32.768 kHz quartz crystal
Century flag
Clock operating voltage: 1.0 V to 5.5 V at room temperature
Low backup current; typical 0.25
A
at V
DD
= 3.0 V and T
amb
= 25
C
400 kHz two-wire I
2
C-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
Integrated oscillator capacitor
Internal Power-On Reset (POR)
I
2
C-bus slave address: read A3h and write A2h
Open-drain interrupt pin
3. Applications
Mobile telephones
Portable instruments
Electronic metering
Battery powered products
1.
The definition of the abbreviations and acronyms used in this data sheet can be found in
Section 18.
NXP Semiconductors
PCF8563
Real-time clock/calendar
4. Ordering information
Table 1.
Ordering information
Package
Name
PCF8563BS/4
Description
Version
SOT650-1
HVSON10 plastic thermal enhanced very thin small outline
package; no leads; 10 terminals;
body 3
3
0.85 mm
SO8
SO8
TSSOP8
TSSOP8
plastic small outline package; 8 leads;
body width 3.9 mm
plastic small outline package; 8 leads;
body width 3.9 mm
plastic thin shrink small outline package; 8 leads;
body width 3 mm
plastic thin shrink small outline package; 8 leads;
body width 3 mm
Type number
PCF8563T/5
PCF8563T/F4
[1]
PCF8563TS/4
[2]
PCF8563TS/5
[1]
[2]
SOT96-1
SOT96-1
SOT505-1
SOT505-1
Not recommended for new designs. Replacement part is PCF8563T/5.
Not recommended for new designs. Replacement part is PCF8563TS/5.
5. Marking
Table 2.
Marking codes
Marking code
8563S
PCF8563
8563T
8563
P8563
Type number
PCF8563BS/4
PCF8563T/5
PCF8563T/F4
PCF8563TS/4
PCF8563TS/5
PCF8563
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 11 — 26 October 2015
2 of 45
NXP Semiconductors
PCF8563
Real-time clock/calendar
6. Block diagram
OSCI
OSCILLATOR
32.768 kHz
OSCO
MONITOR
00
(1)
DIVIDER
CLOCK OUT
CLKOUT
CONTROL
CONTROL_STATUS_1
CONTROL_STATUS_2
CLKOUT_CONTROL
01
0D
POWER ON
RESET
TIME
02
03
V
DD
V
SS
04
05
06
07
WATCH
DOG
08
VL_SECONDS
MINUTES
HOURS
DAYS
WEEKDAYS
CENTURY_MONTHS
YEARS
ALARM FUNCTION
09
0A
SDA
SCL
I
2
C-BUS
INTERFACE
0B
0C
MINUTE_ALARM
HOUR_ALARM
DAY_ALARM
WEEKDAY_ALARM
INTERRUPT
TIMER FUNCTION
INT
PCF8563
0E
0F
TIMER_CONTROL
TIMER
001aah658
(1) C
OSCO
; values see
Table 30.
Fig 1.
Block diagram of PCF8563
PCF8563
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 11 — 26 October 2015
3 of 45
NXP Semiconductors
PCF8563
Real-time clock/calendar
7. Pinning information
7.1 Pinning
terminal 1
index area
OSCI
OSCO
n.c.
INT
V
SS
1
2
3
4
5
10 n.c.
9
V
DD
CLKOUT
SCL
SDA
OSCI
OSCO
INT
V
SS
1
2
8
7
V
DD
CLKOUT
SCL
SDA
PCF8563BS
8
7
6
PCF8563T
3
4
001aaf975
6
5
001aaf981
Transparent top view
For mechanical details, see
Figure 29.
Top view. For mechanical details, see
Figure 30.
Fig 2.
Pin configuration for HVSON10
(PCF8563BS)
Fig 3.
Pin configuration for SO8
(PCF8563T)
OSCI
OSCO
INT
V
SS
1
2
3
4
001aaf976
8
7
V
DD
CLKOUT
SCL
SDA
PCF8563TS
6
5
Top view. For mechanical details, see
Figure 31.
Fig 4.
Pin configuration for TSSOP8 (PCF8563TS)
PCF8563
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 11 — 26 October 2015
4 of 45
NXP Semiconductors
PCF8563
Real-time clock/calendar
7.2 Pin description
Table 3.
Symbol
OSCI
OSCO
INT
V
SS
SDA
SCL
CLKOUT
V
DD
n.c.
[1]
Pin description
Pin
SO8, TSSOP8
1
2
3
4
5
6
7
8
-
HVSON10
1
2
4
5
[1]
6
7
8
9
3, 10
oscillator input
oscillator output
interrupt output (open-drain; active LOW)
ground
serial data input and output
serial clock input
clock output, open-drain
supply voltage
not connected; do not connect and do not
use as feed through
Description
The die paddle (exposed pad) is connected to V
SS
through high ohmic (non-conductive) silicon attach and
should be electrically isolated. It is good engineering practice to solder the exposed pad to an electrically
isolated PCB copper pad for better heat transfer but it is not required as the RTC doesn’t consume much
power. In no case should traces be run under the package exposed pad.
PCF8563
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 11 — 26 October 2015
5 of 45
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