PCF8563
Real-time clock/calendar
Rev. 11 26 October 2015 Product data sheet
1. General description
1
The PCF8563 is a CMOS 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
2
I 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 Aat V = 3.0 V and T =25 C
DD amb
2
400 kHz two-wire I C-bus interface (at V = 1.8 V to 5.5 V)
DD
Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and
1Hz)
Alarm and timer functions
Integrated oscillator capacitor
Internal Power-On Reset (POR)
2
I 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.PCF8563
NXP Semiconductors
Real-time clock/calendar
4. Ordering information
Table 1. Ordering information
Type number Package
Name Description Version
PCF8563BS/4 HVSON10 plastic thermal enhanced very thin small outline SOT650-1
package; no leads; 10 terminals;
body 3 3 0.85 mm
PCF8563T/5 SO8 plastic small outline package; 8 leads; SOT96-1
body width 3.9 mm
[1]
PCF8563T/F4 SO8 plastic small outline package; 8 leads; SOT96-1
body width 3.9 mm
[2]
PCF8563TS/4 TSSOP8 plastic thin shrink small outline package; 8 leads; SOT505-1
body width 3 mm
PCF8563TS/5 TSSOP8 plastic thin shrink small outline package; 8 leads; SOT505-1
body width 3 mm
[1] Not recommended for new designs. Replacement part is PCF8563T/5.
[2] Not recommended for new designs. Replacement part is PCF8563TS/5.
5. Marking
Table 2. Marking codes
Type number Marking code
PCF8563BS/4 8563S
PCF8563T/5 PCF8563
PCF8563T/F4 8563T
PCF8563TS/4 8563
PCF8563TS/5 P8563
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