R7F100LLL3CFB datasheet(134/148 Pages) RENESAS

134 / 148 page

RL78/L23

2. Electrical Characteristics

R01DS0502EJ0110 Rev.1.10

Page 134 of 145

Oct 31, 2025

1. Code flash memory

Caution

The listed values do not include the time until the operations of the flash memory start following execution of an

instruction by software.

2. Data flash memory

Caution

The listed values do not include the time until the operations of the flash memory start following execution of an

instruction by software.

(TA = -40 to +105°C, 1.6 V ≤ VDD ≤ 5.5 V, VSS = 0 V)

Item

Symbols

fCLK = 1 MHz

fCLK = 2 MHz, 3 MHz

4 MHz ≤ fCLK < 8 MHz 8 MHz ≤ fCLK < 32 MHz

fCLK = 32 MHz

Unit

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Programming

time

4 bytes

tP4

—

74.7

656.5

—

51.0

464.6

—

41.7

384.8

—

37.1

346.2

—

34.2

321.9

µs

Erasure time

2 Kbytes tE2K

—

10.4

312.2

—

7.7

258.5

—

6.4

231.8

—

5.8

218.4

—

5.6

214.4

Blank checking

time

4 bytes

tBC4

—

38.4

—

19.2

—

13.1

—

10.2

—

8.3

µs

2 Kbytes tBC2K

—

2618.9

—

1309.5

—

658.3

—

332.8

—

234.1

µs

Time taken to forcibly stop

the erasure

tSED

—

18.0

—

14.0

—

12.0

—

11.0

—

10.3

µs

Security setting time

tAWSSAS

—

18.2

526.2

—

14.4

469.2

—

12.5

441.1

—

11.6

427.1

—

11.3

422.6

Time until programming

starts following

cancellation of the STOP

instruction

—

20—

—

20—

—

20—

—

20—

—

20—

—

µs

(TA = -40 to +105°C, 1.6 V ≤ VDD ≤ 5.5 V, VSS = 0 V)

Item

Symbols

fCLK = 1 MHz

fCLK = 2 MHz, 3 MHz

4 MHz ≤ fCLK < 8 MHz 8 MHz ≤ fCLK < 32 MHz

fCLK = 32 MHz

Unit

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Programming

time

1 byte

tP4

—

74.7

656.5

—

51.0

464.6

—

41.7

384.8

—

37.1

346.2

—

34.2

321.9

µs

Erasure time

256 bytes tE2K

—

7.8

259.2

—

6.4

232.0

—

5.8

218.5

—

5.5

211.8

—

5.4

209.7

Blank checking

time

1 byte

tBC4

—

38.4

—

19.2

—

13.1

—

10.2

—

8.3

µs

256 bytes tBC2K

—

1326.1

—

663.1

—

335.1

—

171.2

—

121.0

µs

Time taken to forcibly stop

the erasure

tSED

—

18.0

—

14.0

—

12.0

—

11.0

—

10.3

µs

Time until programming

starts following

cancellation of the STOP

instruction

—

20—

—

20—

—

20—

—

20—

—

20—

—

µs

Time until reading starts

following setting

DFLCTL.DFLEN to 1

—

0.25

—

0.25

—

0.25

—

0.25

—

0.25

—

µs

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