PCA8565BS/1-T NXP Semiconductors, PCA8565BS/1-T Datasheet - Page 8

• Manufacturer Part Number: PCA8565BS/1-T
• Description: Real Time Clock AUTOMOTIVE CLOCK/CAL
• Manufacturer: NXP Semiconductors

Specifications of PCA8565BS/1-T

• Bus Type: Serial (2-Wire, I2C)
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 1.8V
• Operating Temperature (min): -40C
• Pin Count: 10
• Mounting: Surface Mount
• Date Format: DW:DM:M:Y
• Time Format: HH:MM:SS
• Mounting Style: SMD/SMT
• Package / Case: HVSON
• Lead Free Status / RoHS Status: Compliant
• Other names: PCA8565BS/1,118

NXP Semiconductors
PCA8565_2
Product data sheet
9.3 Reset
9.4 Time and date registers
The PCA8565 includes an internal reset circuit which is active whenever the oscillator is
stopped. In the reset state the I
other registers are set according to
Table 7.
[1]
The majority of the registers are coded in the BCD format to simplify application use.
Table 8.
[1]
[2]
Address Register name
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
Bit
7
6 to 4 SECONDS 0 to 5
3 to 0
Registers labeled ‘x’ are undefined at power-on and unchanged by subsequent resets.
Start-up value.
Values shown in decimal.
Symbol
VL
Control_1
Control_2
Seconds
Minutes
Hours
Days
Weekdays
Months_century
Years
Minute_alarm
Hour_alarm
Day_alarm
Weekday_alarm
CLKOUT_control
Timer_control
Timer
Register reset values
Register Seconds (address 02h) bits description
Value
0
1
0 to 9
[1]
Rev. 02 — 16 June 2009
[2]
[2]
Place value Description
-
-
ten’s place
unit place
Bit
7
0
x
1
1
x
x
x
x
x
1
1
1
1
1
0
x
2
[1]
C-bus logic is initialized including the address pointer. All
Table
6
0
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
clock integrity is guaranteed
integrity of the clock information is not guaranteed
actual seconds coded in BCD format
7.
5
0
0
x
x
x
x
x
x
x
x
x
x
x
x
x
x
4
0
0
x
x
x
x
x
x
x
x
x
x
x
x
x
x
3
1
0
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Real time clock/calendar
2
0
0
x
x
x
x
x
x
x
x
x
x
x
x
x
x
PCA8565
© NXP B.V. 2009. All rights reserved.
1
0
0
x
x
x
x
x
x
x
x
x
x
x
0
1
x
x
x
0
0
0
0
x
x
x
x
x
x
x
x
x
1
x
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