Siemens S5-135U/155U - Page 231

5-91
System Manual
C79000-G8576-C199-06
Current consumption
(at 5 V)
140 mA max.
Backup current 13 mA typ.
Backup voltage/
UCMOS
2.7 V to 3.6 V
Submodule battery Lithium button cell 3 V/200 mAh Type CR 2430
(LF-1/2W) from VARTA
Backup time 1 year min. at 25
o
C
Access time t
ACC
150 ns
Submodules with
Battery Backup
CPUs, Memor
y
Cards, Memor
y
Submodules, Interface Submodules