R7FA2L1AB2DFM datasheet(79/114 Pages) RENESAS

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Note 1. Total time of four commands.

2.11.2

Data Flash Memory Characteristics

Table 2.57

Data flash characteristics (1)

Parameter

Symbol

Min

Typ

Max

Unit

Conditions

Reprogramming/erasure cycle*1

NDPEC

100000

1000000

—

Times

—

Data hold time

After 10000 times of NDPEC

tDDRP

20*2 *3

—

Year

Ta = +85°C

Ta = +105°C

After 100000 times of NDPEC

5*2 *3

—

Year

After 1000000 times of NDPEC

—

1*2 *3

—

Year

Ta = +25°C

Note 1. The reprogram/erase cycle is the number of erasure for each block. When the reprogram/erase cycle is n times (n = 100,000),

erasing can be performed n times for each block. For instance, when 1-byte programming is performed 1,024 times for different

addresses in 1-KB blocks, and then the entire block is erased, the reprogram/erase cycle is counted as one. However, programming

the same address for several times as one erasure is not enabled. (overwriting is prohibited.)

Note 2. Characteristics when using the flash memory programmer and the self-programming library provided by Renesas Electronics.

Note 3. This result is obtained from reliability testing.

Table 2.58

Data flash characteristics (2)

High-speed operating mode

Conditions: VCC = AVCC0 = 1.8 to 5.5 V

Parameter

Symbol

ICLK = 4 MHz

ICLK = 48 MHz

Unit

Min

Typ

Max

Min

Typ

Max

Programming time

1-byte

tDP1

—

404

—

321

µs

Erasure time

1-KB

tDE1K

—

8.8

280

—

6.1

224

Blank check time

1-byte

tDBC1

—

15.2

—

8.3

µs

1-KB

tDBC1K

—

1832

—

466

µs

Suspended time during erasing

tDSED

—

13.2

—

10.5

µs

Data flash STOP recovery time

tDSTOP

250

—

250

—

Note:

Does not include the time until each operation of the flash memory is started after instructions are executed by software.

Note:

The lower-limit frequency of ICLK is 1 MHz during programming or erasing the flash memory. When using ICLK at below 4 MHz, the

frequency can be set to 1 MHz, 2 MHz, or 3 MHz. A non-integer frequency such as 1.5 MHz cannot be set.

Note:

The frequency accuracy of ICLK must be ± 1.0% during programming or erasing the flash memory. Confirm the frequency accuracy

of the clock source.

Table 2.59

Data flash characteristics (3)

Middle-speed operating mode

Conditions: VCC = AVCC0 = 1.6 to 5.5 V

Parameter

Symbol

ICLK = 4 MHz

ICLK = 8 MHz*1

Unit

Min

Typ

Max

Min

Typ

Max

Programming time

1-byte

tDP1

—

404

—

356

µs

Erasure time

1-KB

tDE1K

—

8.8

280

—

7.3

248

Blank check time

1-byte

tDBC1

—

15.2

—

11.3

µs

1-KB

tDBC1K

—

1.84

—

1.06

Suspended time during erasing

tDSED

—

13.2

—

11.7

µs

Data flash STOP recovery time

tDSTOP

250

—

250

—

Note:

Does not include the time until each operation of the flash memory is started after instructions are executed by software.

Note:

The lower-limit frequency of ICLK is 1 MHz during programming or erasing the flash memory. When using ICLK at below 4 MHz, the

frequency can be set to 1 MHz, 2 MHz, or 3 MHz. A non-integer frequency such as 1.5 MHz cannot be set.

Note:

The frequency accuracy of ICLK must be ± 1.0% during programming or erasing the flash memory. Confirm the frequency accuracy

of the clock source.

Note 1. When 1.8 V ≤ VCC = AVCC0 ≤ 5.5 V

RA2L1 Datasheet

2. Electrical Characteristics

R01DS0385EJ0160 Rev.1.60

Oct 14, 2025

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