PCF2123BS/1,512 NXP Semiconductors, PCF2123BS/1,512 Datasheet - Page 3

• Manufacturer Part Number: PCF2123BS/1,512
• Description: IC CLOCK HVQFN16
• Manufacturer: NXP Semiconductors
• Type: Clock/Calendar/Alarmr

Specifications of PCF2123BS/1,512

• Package / Case: 16-VQFN Exposed Pad, 16-HVQFN, 16-SQFN, 16-DHVQFN
• 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
• Function: Clock, Calendar, Alarm, Watchdog
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.1 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: SPI
• Supply Current: 250 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-5051-5; 935286382512

NXP Semiconductors
6. Block diagram
PCF2123
Product data sheet
Fig 1.
OSCO
TEST
OSCI
SDO
V
SCL
V
SDI
CE
DD
SS
Block diagram of PCF2123
R
C
C
pd
OSCO
OSCI
OSCILLATOR
INTERFACE
POWER ON
32.768 kHz
MONITOR
WATCH
RESET
DOG
SPI
PCF2123
DIVIDER
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 22 December 2010
0Dh
0Eh
0Ah
0Bh
0Ch
0Fh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
OFFSET FUNCTION
ALARM FUNCTION
TIMER FUNCTION
Countdown_timer
CONTROL
Offset_register
Weekday_alarm
Minute_alarm
Timer_clkout
Hour_alarm
TIME
Day_alarm
Weekdays
Control_1
Control_2
Seconds
Minutes
Months
Hours
Years
Days
CLOCK OUT
SPI Real time clock/calendar
INTERRUPT
013aaa223
PCF2123
© NXP B.V. 2010. All rights reserved.
CLKOE
CLKOUT
INT
3 of 61