s-8426a Seiko Instruments Inc., s-8426a Datasheet - Page 15

• Manufacturer Part Number: s-8426a
• Description: Battery Backup Switching Ic
• Manufacturer: Seiko Instruments Inc.

Rev.1.0
Application Circuits
1. When Using Timer Micro controllers for Backup to display
6 V
_00
3 V
Main
1 kΩ
CPU
VCC
0.1 µF
10 µF
10 µF
RESET
INT
+
+
100 kΩ
VRO
VBAT
VIN
Figure 18 Application Circuit 1
S-8426A
VOUT
Series
VSS
Seiko Instruments Inc.
PREEND
RESET
10 µF
CS
Address data
100 kΩ
+
BATTERY BACKUP SWITCHING IC
PREEND
100 kΩ
CS
RESET
in the primary CPU
microcontroller
VCC
Timer
S-8426A Series
15