參數(shù)資料
型號(hào): PCF8593
廠商: NXP SEMICONDUCTORS
元件分類: XO, clock
英文描述: Low power clock/calendar(低功耗時(shí)鐘/日歷)
中文描述: REAL TIME CLOCK
文件頁數(shù): 6/28頁
文件大?。?/td> 197K
代理商: PCF8593
1997 Mar 25
6
Philips Semiconductors
Product specification
Low power clock/calendar
PCF8593
Fig.3 Control/status register.
handbook, full pagewidth
memory location 00
timer flag
(50% duty factor
seconds flag if alarm
enable bit is 0)
alarm flag
(50% duty factor
minutes flag if alarm
enable bit is 0)
alarm enable bit:
0 alarm disabled: flags toggle
alarm control register disabled
(memory locations 08 to 0F
can be treated as RAM)
1 enable Alarm Control register
(memory location 08 is the
Alarm Control register)
mask flag:
0 read locations 05 to 06
unmasked
1 read date and month count
directly
function mode :
00 clock mode 32.768 kHz
01 clock mode 50 Hz
10 event-counter mode
11 test modes
hold last count flag :
0 count
1 store and hold last count in
capture latches
stop counting flag :
0 count pulses
1 stop counting, reset divider
7
6
5
4
3
2
1
0
MSB
LSB
MBD810
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