PCF8563PN NXP Semiconductors, PCF8563PN Datasheet - Page 33

• Manufacturer Part Number: PCF8563PN
• Description: Real Time Clock ULTRA LOW POWER CLOCK CALENDAR
• Manufacturer: NXP Semiconductors

Specifications of PCF8563PN

• Function: Clock, Calendar, Alarm, Timer Interrupt
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole
• Rtc Bus Interface: Serial
• Package / Case: PDIP-8
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PCF8563P/F4,112

NXP Semiconductors
PCF8563
Product data sheet
14.1.1 Method 1: fixed OSCI capacitor
14.1.2 Method 2: OSCI trimmer
14.1.3 Method 3: OSCO output
14.1 Quartz frequency adjustment
By evaluating the average capacitance necessary for the application layout, a fixed
capacitor can be used. The frequency is best measured via the 32.768 kHz signal
available after power-on at pin CLKOUT. The frequency tolerance depends on the quartz
crystal tolerance, the capacitor tolerance and the device-to-device tolerance (on average
±5 ppm). Average deviations of ±5 minutes per year can be easily achieved.
Using the 32.768 kHz signal available after power-on at pin CLKOUT, fast setting of a
trimmer is possible.
Direct measurement of OSCO out (accounting for test probe capacitance).
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 18 November 2010
Real-time clock/calendar
PCF8563
© NXP B.V. 2010. All rights reserved.
33 of 45