PCF2129AT/1,512 NXP Semiconductors, PCF2129AT/1,512 Datasheet - Page 33

• Manufacturer Part Number: PCF2129AT/1,512
• Description: IC REAL TIME CLK/CALENDAR 20SOIC
• Manufacturer: NXP Semiconductors
• Type: Clock/Calendar/Alarmr

Specifications of PCF2129AT/1,512

• Package / Case: 20-SOIC (7.5mm Width)
• Date Format: YY-MM-DD-dd
• Time Format: HH:MM:SS (12/24 hr)
• Interface: I²C, SPI
• Voltage - Supply: 1.8 V ~ 4.2 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Function: Clock, Alarm, Watchdog, Timestamp
• 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
• Rtc Bus Interface: I2C, SPI
• Supply Current: 800 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4960-5; 935288599512

NXP Semiconductors
PCF2129A_2
Product data sheet
Table 34.
The following tables show what instruction must be sent to clear the appropriate flag.
Table 35.
[1]
Table 36.
[1]
Register
Control_2
Register
Control_2
Register
Control_2
The bits labeled as - have to be rewritten with the previous values.
The bits labeled as - have to be rewritten with the previous values.
Example values in register Control_2
Example to clear only AF (bit 4)
Example to clear only MSF (bit 7)
All information provided in this document is subject to legal disclaimers.
Bit
7
1
Bit
7
1
Bit
7
0
Rev. 02 — 7 May 2010
6
0
6
0
6
0
5
1
5
1
5
1
4
1
4
0
4
1
Integrated RTC, TCXO and quartz crystal
3
0
3
0
3
0
2
0
2
0
2
0
[1]
[1]
PCF2129A
© NXP B.V. 2010. All rights reserved.
1
0
1
0
1
0
[1]
[1]
0
0
0
0
0
0
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