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PCF2123 数据表(PDF) 3 Page - NXP Semiconductors

部件名 PCF2123
功能描述  SPI Real time clock/calendar Time keeping application
PDF  63 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

PCF2123 数据表(HTML) 3 Page - NXP Semiconductors

  PCF2123 Datasheet HTML 1Page - NXP Semiconductors PCF2123 Datasheet HTML 2Page - NXP Semiconductors PCF2123 Datasheet HTML 3Page - NXP Semiconductors PCF2123 Datasheet HTML 4Page - NXP Semiconductors PCF2123 Datasheet HTML 5Page - NXP Semiconductors PCF2123 Datasheet HTML 6Page - NXP Semiconductors PCF2123 Datasheet HTML 7Page - NXP Semiconductors PCF2123 Datasheet HTML 8Page - NXP Semiconductors PCF2123 Datasheet HTML 9Page - NXP Semiconductors Next Button
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PCF2123
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 27 April 2011
3 of 63
NXP Semiconductors
PCF2123
SPI Real time clock/calendar
6.
Block diagram
Fig 1.
Block diagram of PCF2123
013aaa223
PCF2123
OSCILLATOR
32.768 kHz
DIVIDER
CLOCK OUT
INTERRUPT
CLKOUT
CLKOE
INT
OFFSET FUNCTION
Offset_register
0Dh
MONITOR
POWER ON
RESET
WATCH
DOG
SPI
INTERFACE
OSCI
CE
SCL
SDI
SDO
OSCO
VDD
TEST
VSS
TIMER FUNCTION
Timer_clkout
0Eh
Countdown_timer
0Fh
CONTROL
Control_1
00h
Control_2
01h
TIME
Seconds
02h
Minutes
03h
Hours
04h
Days
05h
ALARM FUNCTION
Minute_alarm
09h
Hour_alarm
0Ah
Day_alarm
0Bh
Weekday_alarm
0Ch
Weekdays
06h
Months
07h
Years
08h
COSCI
COSCO
Rpd



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