PCF2129AT/1,512 NXP Semiconductors, PCF2129AT/1,512 Datasheet - Page 11

• 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
8.2.3 Register Control_3
Table 7.
[1]
[2]
Bit
7 to 5 PWRMNG[2:0]
4
3
2
1
0
Values see
Default value.
Symbol
BTSE
BF
BLF
BIE
BLIE
Control_3 - control and status register 3 (address 02h) bit description
Table
All information provided in this document is subject to legal disclaimers.
13.
Value
[1]
0
1
0
1
0
1
0
1
0
1
Rev. 02 — 7 May 2010
[2]
[2]
[2]
[2]
[2]
Description
control of the battery switch-over, battery low
detection, and extra power fail detection
functions
no timestamp when battery switch-over
occurs
time-stamped when battery switch-over
occurs
no battery switch-over interrupt generated
flag set when battery switch-over occurs;
battery status ok;
battery status low;
no interrupt generated from the battery
flag (BF)
interrupt generated when BF is set
no interrupt generated from battery low
flag (BLF)
interrupt generated when BLF is set
flag must be cleared to clear interrupt
no battery low interrupt generated
flag cannot be cleared using the interface
Integrated RTC, TCXO and quartz crystal
PCF2129A
© NXP B.V. 2010. All rights reserved.
Reference
Section 8.5
Section 8.11.4
Section 8.5.1
Section 8.5.3
Section 8.12.6
Section 8.12.7
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