PCF2123TS/1.118 NXP Semiconductors, PCF2123TS/1.118 Datasheet - Page 11

• Manufacturer Part Number: PCF2123TS/1.118
• Manufacturer: NXP Semiconductors

Specifications of PCF2123TS/1.118

• Bus Type: Serial (3-Wire, SPI)
• Package Type: TSSOP
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Mounting: Surface Mount
• Date Format: DW:DM:M:Y
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
PCF2123
Product data sheet
Table 6.
Bits labeled as - are not implemented. Bits labeled as X are undefined at power-on and unchanged
by subsequent resets.
Address Register name
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
Control_1
Control_2
Seconds
Minutes
Hours
Days
Weekdays
Months
Years
Minute_alarm
Hour_alarm
Day_alarm
Weekday_alarm
Offset_register
Timer_clkout
Countdown_timer
Register reset values
All information provided in this document is subject to legal disclaimers.
Rev. 03 — 5 October 2010
Bit
7
0
0
1
-
-
-
-
-
X
1
1
1
1
0
-
X
6
0
0
X
X
-
-
-
-
X
X
-
-
-
0
0
X
5
0
0
X
X
X
X
-
-
X
X
X
X
-
0
0
X
4
0
0
X
X
X
X
-
X
X
X
X
X
-
0
0
X
SPI Real time clock/calendar
3
0
0
X
X
X
X
-
X
X
X
X
X
-
0
0
X
2
0
0
X
X
X
X
X
X
X
X
X
X
X
0
-
X
PCF2123
© NXP B.V. 2010. All rights reserved.
1
0
0
X
X
X
X
X
X
X
X
X
X
X
0
1
X
0
0
0
X
X
X
X
X
X
X
X
X
X
X
0
1
X
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