STM8S007C8 datasheet(60/93 Pages) STMICROELECTRONICS

60 / 93 page

Electrical characteristics

STM8S007C8

60/93

DS8633 Rev 6

9.3.5

Memory characteristics

RAM and hardware registers

Flash program memory and data EEPROM

General conditions: TA = -40 to 85 °C.

Table 33. RAM and hardware registers

Symbol

Parameter

Conditions

Min

Unit

VRM

Data retention mode(1)

1. Minimum supply voltage without losing data stored in RAM (in halt mode or under reset) or in hardware

registers (only in halt mode). Guaranteed by design.

Halt mode (or reset)

VIT-max(2)

2. Refer to Table 17 on page 47 for the value of VIT-max.

Table 34. Flash program memory and data EEPROM

Symbol

Parameter

Conditions

Min(1)

1. Guaranteed by characterization results.

Typ

Max

Unit

VDD

Operating voltage

(all modes, execution/write/erase)

fCPU ≤ 16 MHz

2.95

5.5

tprog

Standard programming time (including

erase) for byte/word/block

(1 byte/4 bytes/128 bytes)

6.0

6.6

Fast programming time for 1 block

(128 bytes)

3.0

3.3

terase

Erase time for 1 block (128 bytes)

3.0

3.3

NRW

Erase/write cycles(2)

(program memory)

2. The physical granularity of the memory is 4 bytes, so cycling is performed on 4 bytes even when a

write/erase operation addresses a single byte.

TA = 85 °C

100

cycles

Erase/write cycles(2)

(data memory)

100 k

tRET

Data retention (program memory)

after 100 erase/write cycles at

TA = 85 °C

TRET = 55° C

years

Data retention (data memory) after

10 k erase/write cycles at TA = 85 °C

Data retention (data memory) after

100 k erase/write cycles at TA = 85 °C

TRET = 85° C

1.0

IDD

Supply current (Flash programming or

erasing for 1 to 128 bytes)

2.0

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