ST7LITE20F2 STMicroelectronics, ST7LITE20F2 Datasheet - Page 17

• Manufacturer Part Number: ST7LITE20F2
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7LITE20F2

• 8 Kbytes Single Voltage Flash Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55˚C.
• Clock Sources: Internal 1% RC oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Wait and Slow, Auto Wake Up From Halt

DATA EEPROM (Cont’d)
Figure 8. Data E
Note: If a programming cycle is interrupted (by a reset action), the integrity of the data in memory is not
guaranteed.
E2LAT bit
E2PGM bit
DEFINITION
ROW
2
Byte 1
PROM Write Operation
Set by USER application
⇓ Row / Byte ⇒
Writing data latches
Byte 2
PHASE 1
...
N
0
1
Read operation impossible
Byte 32
0
1
Waiting E2PGM and E2LAT to fall
2
3
Programming cycle
...
PHASE 2
30 31
Nx20h...Nx20h+1Fh
Physical Address
00h...1Fh
20h...3Fh
Read operation possible
Cleared by hardware
ST7LITE2
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