PCF2123BS/1,518 NXP Semiconductors, PCF2123BS/1,518 Datasheet - Page 31

• Manufacturer Part Number: PCF2123BS/1,518
• Description: IC RTC/CALENDAR SPI BUS 16HVQFN
• Manufacturer: NXP Semiconductors
• Type: Clock/Calendar/Alarmr

Specifications of PCF2123BS/1,518

• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 1.1 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-VQFN Exposed Pad, 16-HVQFN, 16-SQFN, 16-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 935286382518

NXP Semiconductors
PCF2123
Product data sheet
Table 38.
[1]
[2]
It is possible to monitor when correction pulses are applied. The correction interrupt
enable mode (bit CIE) will generate a
applied. In the case where multiple correction pulses are applied, a
pulse will be generated and repeated every
Correction is applied to the 1 Hz clock. Any timer or clock output using a frequency of 1 Hz
or below will also be affected by the correction pulses.
Correction value
+1 or 1
+2 or 2
+3 or 3
:
+59 or 59
+60 or 60
+61 or 61
+62 or 62
+63 or 63
64
Example is given in a time range from 2:00 to 2:59.
Correction INT pulses are
Correction pulses for course mode
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 22 December 2010
1

128
s wide. For multiple pulses they are repeated at
Hour:Minute
02:00
02:01 to
02:59
02:00
02:01
02:02 to
02:59
02:00
02:01
02:02
02:03 to
02:59
:
02:00 to
02:58
02:59
02:00 to
02:59
02:00 to
02:58
02:59
02:00 to
02:58
02:59
02:00 to
02:58
02:59
02:00 to
02:58
02:59
1

128
[1]
second pulse on INT for every correction
1

64
seconds.
SPI Real time clock/calendar
Correction pulses on INT per
minute
1
0
1
1
0
1
1
1
0
:
1
0
1
1
2
1
3
1
4
1
5
[2]
1
1


64
128
PCF2123
s interval.
© NXP B.V. 2010. All rights reserved.
second interrupt
31 of 61