參數(shù)資料
型號: MC68HC68
廠商: Motorola, Inc.
英文描述: Real-Time Clock plus RAM with Serial Interface
中文描述: 實時時鐘加RAM的串行接口
文件頁數(shù): 11/26頁
文件大?。?/td> 342K
代理商: MC68HC68
MC68HC68T1
MOTOROLA
11
VDD
0 V
VDD
XTALin
XTALout
LINE
MSB
LSB
1
REAL–TIME CLOCK
MC68HC68T1
INT
VDD
IRQ
MC68HC05C4
CPU
NOTE: A 60 Hz, 10 V p–p sine–wave voltage is an acceptable signal to present at the LINE input pin.
Figure 8. Power Sensing Functional Diagram
(STATUS REGISTER)
INTERRUPT
CONTROL
REGISTER
MSB
LSB
1
REAL–TIME CLOCK
MC68HC68T1
VDD
RESET
MC68HC05C4
CPU
OSC 1
CPUR
VSYS
SERIAL
INTERFACE
CLKOUT
PSE
MISO
MOSI
TO SYSTEM
POWER CONTROL
Figure 9. Software Power–Down Functional Diagram
VBATT
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