SPC584BX datasheet(76/142 Pages) STMICROELECTRONICS

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Electrical characteristics

SPC584Bx

76/142

DS11701 Rev 4

All the Flash operations require the presence of the system clock for internal

synchronization. About 50 synchronization cycles are needed: this means that the timings of

the previous table can be longer if a low frequency system clock is used.

Table 41. Flash memory life specification

Symbol

Characteristics(1) (2)

1. Program and erase cycles supported across specified temperature specifications.

2. It is recommended that the application enables the core cache memory.

Value

Unit

Min

Typ

NCER16K 16 KB CODE Flash endurance

—

100

— Kcycles

NCER32K 32 KB CODE Flash endurance

—

100

— Kcycles

NCER64K 64 KB CODE Flash endurance

—

100

— Kcycles

NCER128K 128 KB CODE Flash endurance

—

100

— Kcycles

NCER256K

256 KB CODE Flash endurance

—

100

— Kcycles

256 KB CODE Flash endurance(3)

3. 10K cycles on 4-256 KB blocks is not intended for production. Reduced reliability and degraded erase time

are possible.

—

100

— Kcycles

NDER16K 16 KB DATA EEPROM Flash endurance

250

—

— Kcycles

NDER16K 16 KB HSM DATA EEPROM Flash endurance

100

—

— Kcycles

tDR1k

Minimum data retention Blocks with 0 - 1,000 P/E

cycles

—

Years

tDR10k

Minimum data retention Blocks with 1,001 - 10,000

P/E cycles

—

Years

tDR100k

Minimum data retention Blocks with 10,001 - 100,000

P/E cycles

—

Years

tDR250k

Minimum data retention Blocks with 100,001 -

250,000 P/E cycles

—

Years

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