ST7MC1xx/ST7MC2xx
12.6 MEMORY CHARACTERISTICS
12.6.1 RAM and Hardware Registers
Symbol
Parameter
VRM Data retention mode 1)
Conditions
Halt mode (or RESET)
Min
Typ
Max
Unit
1.6
V
12.6.2 FLASH Memory
DUAL VOLTAGE HDFLASH MEMORY
Symbol
Parameter
Conditions
Min 2)
Typ
Max 2) Unit
fCPU
VPP
IPP
Operating frequency
Programming voltage 3)
VPP current4) 5)
Read mode
0
Write / Erase mode
1
4.5V ≤VDD ≤5.5V
11.4
Read (VPP=12V)
Write / Erase
8
MHz
8
12.6
V
200
µA
30
mA
tVPP
Internal VPP stabilization time
tRET
Data retention
NRW
TPROG
TERASE
Write erase cycles
Programming or erasing tempera-
ture range
TA=85°C
TA=105°C
TA=125°C
TA=25°C
10
40
15
7
100
-40
25
μs
years
cycles
85
°C
Notes:
1. Minimum VDD supply voltage without losing data stored in RAM (in Halt mode or under RESET) or in hardware registers
(only in Halt mode). Not tested in production.
2. Data based on characterization results, not tested in production.
3. VPP must be applied only during the programming or erasing operation and not permanently for reliability reasons.
4. Data based on simulation results, not tested in production
5. In Write/Erase mode the IDD supply current consumption is the same as in Run mode (section 12.4.1 on page 252)
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