mc68hc68t1 Freescale Semiconductor, Inc, mc68hc68t1 Datasheet - Page 11

• Manufacturer Part Number: mc68hc68t1
• Description: Mc68hc68t1 Real-time Clock Plus Ram With Serial Interface
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA
V DD
NOTE: A 60 Hz, 10 V p–p sine–wave voltage is an acceptable signal to present at the LINE input pin.
0 V
MSB
INTERRUPT
REGISTER
CONTROL
INTERFACE
SERIAL
1
Figure 9. Software Power–Down Functional Diagram
REAL–TIME CLOCK
Figure 8. Power Sensing Functional Diagram
MC68HC68T1
V DD
CLKOUT
CPUR
XTAL in
XTAL out
LINE
MSB
V SYS
LSB
PSE
(STATUS REGISTER)
REAL–TIME CLOCK
POWER CONTROL
MC68HC68T1
TO SYSTEM
MISO
MOSI
V DD
1
V BATT
LSB
INT
OSC 1
RESET
MC68HC05C4
CPU
V DD
IRQ
MC68HC05C4
CPU
MC68HC68T1
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