STM32F722IC datasheet(144/229 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F722xx STM32F723xx

144/229

DS11853 Rev 6

tME

Mass erase time

Program/erase parallelism

(PSIZE) = x 8

7718

9883

Program/erase parallelism

(PSIZE) = x 16

4869

6379

Program/erase parallelism

(PSIZE) = x 32

3503

5180

Vprog

Programming voltage

32-bit program operation

2.7

3.6

16-bit program operation

2.1

3.6

8-bit program operation

1.7

3.6

1. Guaranteed by characterization results.

2. The maximum programming time is measured after 10 K erase operations.

Table 54. Flash memory programming with VPP

Symbol

Parameter

Conditions

Min(1)

Typ

Max(1)

1. Guaranteed by design.

Unit

tprog

Double word programming

TA = 0 to +40 °C

VDD = 3.3 V

VPP = 8.5 V

-16

100(2)

2. The maximum programming time is measured after 10 K erase operations.

µs

tERASE16KB Sector (16 KB) erase time

180

tERASE128KB Sector (128 KB) erase time

900

tERASE64KB Sector (64 KB) erase time

450

tME

Mass erase time

6.9

Vprog

Programming voltage

2.7

3.6

VPP

VPP voltage range

IPP

Minimum current sunk on

the VPP pin

-10

tVPP(3)

3. VPP should only be connected during programming/erasing.

Cumulative time during

which VPP is applied

hour

Table 55. Flash memory endurance and data retention

Symbol

Parameter

Conditions(1)

Value

Unit

Min(2)

NEND

Endurance

TA = –40 to +85 °C (6 suffix versions)

TA = –40 to +105 °C (7 suffix versions)

kcycles

tRET

Data retention

1 kcycle(3) at TA = 85 °C

Years

1 kcycle(3) at TA = 105 °C

10 kcycles(3) at TA = 55 °C

Table 53. Flash memory programming (continued)

Symbol

Parameter

Conditions

Min(1)

Typ

Max(1) Unit

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