PCF2127AT/2Y NXP Semiconductors, PCF2127AT/2Y Datasheet - Page 44

• Manufacturer Part Number: PCF2127AT/2Y
• Description: Real Time Clock Integrated RTC TCXO quartz crystal
• Manufacturer: NXP Semiconductors
• Series: PCF2127ATr

Specifications of PCF2127AT/2Y

• Rohs: yes
• Function: Clock, Calendar, Temperature
• Rtc Bus Interface: I2C
• Date Format: DW
• Time Format: HH
• Rtc Memory Size: 512 B
• Supply Voltage - Max: 4.2 V
• Supply Voltage - Min: 1.8 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-163-1
• Battery Backup Switching: Yes

NXP Semiconductors
PCF2127AT
Product data sheet
8.12.3.4 Register Hour_timestp
8.12.3.5 Register Day_timestp
8.12.3.6 Register Mon_timestp
8.12.3.7 Register Year_timestp
Table 49.
[1]
Table 50.
Table 51.
Table 52.
Bit
5
4
3 to 0
24 hour mode
5 to 4 HOUR_TIMESTP
3 to 0
Bit
Bit
Bit
7 to 6 -
12 hour mode
7 to 6 -
5 to 4 DAY_TIMESTP
3 to 0
7 to 5 -
4
3 to 0
7 to 4 YEAR_TIMESTP
3 to 0
Hour mode is set by the bit 12_24 in register Control_1.
Symbol
AMPM
HOUR_TIMESTP
Symbol
Symbol
MONTH_TIMESTP
Symbol
Hour_timestp - hour timestamp register (address 15h) bit description
Day_timestp - day timestamp register (address 16h) bit description
Mon_timestp - month timestamp register (address 17h) bit description
Year_timestp - year timestamp register (address 18h) bit description
[1]
[1]
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 28 January 2013
Value
-
0
1
0 to 1
0 to 9
0 to 2
0 to 9
Value
-
0 to 3
0 to 9
Value
-
0 to 1
0 to 9
Value
0 to 9
0 to 9
Place value Description
-
-
-
ten’s place
unit place
ten’s place
unit place
Place value Description
-
ten’s place
unit place
Place value Description
-
ten’s place
unit place
Place value Description
ten’s place
unit place
Integrated RTC, TCXO and quartz crystal
unused
indicates AM
indicates PM
hour timestamp information coded in BCD
format when in 12 hour mode
hour timestamp information coded in BCD
format when in 24 hour mode
unused
day timestamp information coded in BCD
format
unused
month timestamp information coded in
BCD format
year timestamp information coded in BCD
format
PCF2127AT
© NXP B.V. 2013. All rights reserved.
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