PCA2125TS/1,112 NXP Semiconductors, PCA2125TS/1,112 Datasheet - Page 9

• Manufacturer Part Number: PCA2125TS/1,112
• Description: IC CMOS RTC/CALENDAR 14-TSSOP
• Manufacturer: NXP Semiconductors
• Type: Clock/Calendar/Alarmr

Specifications of PCA2125TS/1,112

• Package / Case: 14-TSSOP
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 1.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Function: Clock, Calendar
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.3 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: OM6292 - DEMO BOARD PCA2125 RTC
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 935283386112; PCA2125TS/1; PCA2125TS/1

NXP Semiconductors
PCA2125_1
Product data sheet
Table 12.
[1]
Table 13.
Table 14.
[1]
Table 15.
Table 16.
Bit
6, 7
5 to 0
Bit
3 to 7
2 to 0
Day
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Bit
5 to 7
4 to 0
Month
January
February
March
April
May
June
July
August
September
The RTC compensates for leap years by adding a 29th day to February if the year counter contains a value
which is exactly divisible by 4, including the year 00.
The weekday assignments can be re-defined by the user.
[1]
Symbol
-
MONTHS[4:0]
Symbol
-
DAYS[5:0]
Symbol
-
WEEKDAYS[2:0]
Register Days (address 05h) bit description
Register Weekdays (address 06h) bit description
Weekday assignments
Register Months (address 07h) bit description
Month assignments
Bit 7
Bit 7
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Rev. 01 — 28 July 2008
Bit 6
Bit 6
Value
0
01 to 12
Double-digit
Double-digit
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Value
0
01 to 31
Value
0
0 to 6
Bit 5
Bit 5
Description
unused
this register holds the current month value coded in BCD
format; see
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Description
unused
this register holds the current day value coded in BCD
format
Description
unused
this register holds the current weekday value; see
Table 14
Bit 4
Bit 4
[1]
X
X
X
X
X
X
X
0
0
0
0
0
0
0
0
0
Table 16
Bit 3
Bit 3
X
X
X
X
X
X
X
0
0
0
0
0
0
0
1
1
SPI Real-time clock/calendar
Bit 2
Bit 2
0
0
0
0
1
1
1
0
0
0
1
1
1
1
0
0
Digit
Digit
PCA2125
© NXP B.V. 2008. All rights reserved.
Bit 1
Bit 1
0
0
1
1
0
0
1
0
1
1
0
0
1
1
0
0
Bit 0
Bit 0
9 of 36
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1