DS2223 Dallas Semiconducotr, DS2223 Datasheet - Page 8

• Manufacturer Part Number: DS2223
• Description: EconoRAM
• Manufacturer: Dallas Semiconducotr

DATA RETENTION TIME VS. CAPACITANCE Figure 11
Using Battery Backup
14 mA–Hr => 144 million transactions
DS2223/DS2224
080598 8/10
CAPACITANCE
( F)
DATA
PIN
10K
100
1K
10
0
0.1
1
2
DS2223
DS2224
10
TIME (hours)
100
3
1
1K
+
10K
Initial V
EVEREADY
NO. 321
CC
V
V
1.5V
CC
CC
Voltage
= 3.0
= 5.0