PCF8563T NXP Semiconductors, PCF8563T Datasheet - Page 10

• Manufacturer Part Number: PCF8563T
• Manufacturer: NXP Semiconductors

Specifications of PCF8563T

• Bus Type: Serial (2-Wire, I2C)
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Package Type: SO
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 1.8V
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 8
• Mounting: Surface Mount
• Date Format: DW:DM:M:Y
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
PCF8563
Product data sheet
8.4.2 Register Minutes
8.4.3 Register Hours
8.4.4 Register Days
8.4.5 Register Weekdays
The VL flag is intended to detect the situation when V
under battery operation. Should the oscillator stop or V
re-asserted, then the VL flag is set. This will indicate that the time may be corrupted.
Table 10.
Table 11.
Table 12.
[1]
Table 13.
Bit
7
6 to 4 MINUTES
3 to 0
Bit
7 to 6 -
5 to 4 HOURS
3 to 0
Bit
7 to 6 -
5 to 4 DAYS
3 to 0
Bit
7 to 3 -
2 to 0 WEEKDAYS
The PCF8563 compensates for leap years by adding a 29th day to February if the year counter contains a
value which is exactly divisible by 4, including the year 00.
Symbol
-
Symbol
Symbol
Symbol
Minutes - minutes register (address 03h) bit description
Hours - hours register (address 04h) bit description
Days - days register (address 05h) bit description
Weekdays - weekdays register (address 06h) bit description
[1]
All information provided in this document is subject to legal disclaimers.
Value
-
0 to 5
0 to 9
Value
-
0 to 2
0 to 9
Value
-
0 to 3
0 to 9
Rev. 7 — 23 July 2010
Value
-
0 to 6
Place value Description
-
ten’s place
unit place
Place value Description
-
ten’s place
unit place
Place value Description
-
ten’s place
unit place
Description
unused
actual weekday values, see
unused
actual minutes coded in BCD format
unused
actual hours coded in BCD format
unused
actual day coded in BCD format
DD
DD
is decreasing slowly, for example
reach V
Table 14
Real-time clock/calendar
low
before power is
PCF8563
© NXP B.V. 2010. All rights reserved.
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