PCF2129AT/2,518 NXP Semiconductors, PCF2129AT/2,518 Datasheet - Page 12

• Manufacturer Part Number: PCF2129AT/2,518
• Description: Real Time Clock
• Manufacturer: NXP Semiconductors
• Series: PCF2129r

Specifications of PCF2129AT/2,518

• Rohs: yes
• Function: Clock, Calendar, Alarm, Watchdog, Timestamp
• Rtc Bus Interface: I2C, SPI
• Date Format: Binary
• Time Format: Binary
• Supply Voltage - Max: 4.2 V
• Supply Voltage - Min: 1.2 V
• Maximum Operating Temperature: + 60 C
• Minimum Operating Temperature: - 15 C
• Mounting Style: SMD/SMT
• Package / Case: SOP-20
• Battery Backup Switching: Yes
• Factory Pack Quantity: 2000

NXP Semiconductors
PCF2129AT
Product data sheet
Table 11.
[1]
[2]
[3]
COF[2:0]
000
001
010
011
100
101
110
111
[2][3]
Duty cycle definition: % HIGH-level time : % LOW-level time.
Default value.
The specified accuracy of the RTC can be only achieved with CLKOUT frequencies not equal to
32.768 kHz or if CLKOUT is disabled.
CLKOUT frequency selection
All information provided in this document is subject to legal disclaimers.
CLKOUT frequency (Hz)
32768
16384
8192
4096
2048
1024
1
CLKOUT = high-Z
Rev. 5 — 12 February 2013
Integrated RTC, TCXO and quartz crystal
Typical duty cycle
60 : 40 to 40 : 60
50 : 50
50 : 50
50 : 50
50 : 50
50 : 50
50 : 50
-
PCF2129AT
© NXP B.V. 2013. All rights reserved.
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