PCF2123BS/1,518 NXP Semiconductors, PCF2123BS/1,518 Datasheet - Page 3
![no-image](/images/manufacturer_photos/0/4/487/nxp_semiconductors_sml.jpg)
PCF2123BS/1,518
Manufacturer Part Number
PCF2123BS/1,518
Description
IC RTC/CALENDAR SPI BUS 16HVQFN
Manufacturer
NXP Semiconductors
Type
Clock/Calendar/Alarmr
Datasheet
1.PCF2123TS1118.pdf
(61 pages)
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
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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
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