cdp68hc68t1 Intersil Corporation, cdp68hc68t1 Datasheet - Page 19

• Manufacturer Part Number: cdp68hc68t1
• Description: Cmos Serial Real-time Clock With Ram And Power Sense/control
• Manufacturer: Intersil Corporation

System Diagrams
0.047
20k
LINE
1k
AC
V
DD
RTC
CHARGE
REGULATOR
19
(Continued)
R
FIGURE 18. EXAMPLE OF A SYSTEM WITH A BATTERY BACKUP
0.1
POR
V
XTAL
LINE
BATT
100k
V
V
DD
SS
CDP68HC68T1
CPUR
V
CLK
OUT
PSE
SYS
INT
SPI
CE
NC
V
DD
3
RESET
IRQ
OSC1
PORT
SPI
CDP68HC05C4B
V
V
DD
SS
(EPS)
ENABLED
POWER
SUPPLY
October 29, 2007
FN1547.8