Datasheet

ST6200C/ST6201C/ST6203C
72/100
10.6 MEMORY CHARACTERISTICS
Subject to general operating conditions for V
DD
, f
OSC
, and T
A
unless otherwise specified.
10.6.1 RAM and Hardware Registers
10.6.2 EPROM Program Memory
Figure 49. EPROM Retention Time vs. Temperature
Notes:
1. Minimum V
DD
supply voltage without losing data stored in RAM (in STOP mode or under RESET) or in hardware reg-
isters (only in STOP mode). Guaranteed by construction, not tested in production.
2. Data based on reliability test results and monitored in production.
3. The data retention time increases when the T
A
decreases, see Figure 49.
Symbol Parameter Conditions Min Typ Max Unit
V
RM
Data retention
1)
0.7 V
Symbol Parameter Conditions Min Typ Max Unit
t
ret
Data retention
2)
T
A
=+55°C
3)
10 years
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120
Temperature [°C]
0.1
1
10
100
1000
10000
100000
Retention time [Years]
1