HD64F36049 datasheet(472/562 Pages) RENESAS

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Section 23 Electrical Characteristics

Rev. 3.00 Mar. 15, 2006 Page 440 of 526

REJ09B0060-0300

Test

Values

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Erasing

Wait time after SWE

bit setting*



µs

Wait time after ESU

bit setting*

100



µs

Wait time after E bit setting*

1*6 z



100

Wait time after E bit clear*



µs

Wait time after ESU bit clear*



µs

Wait time after EV bit setting*



µs

Wait time after dummy write*



µs

Wait time after EV bit clear*



µs

Wait time after SWE bit clear*

100



µs

Maximum erase count *

1*6*7



120

Times

Notes: 1. Make the time settings in accordance with the program/erase algorithms.

2. The programming time for 128 bytes. (Indicates the total time for which the P bit in the

flash memory control register 1 (FLMCR1) is set. The program-verify time is not

included.)

3. The time required to erase one block. (Indicates the time for which the E bit in the flash

memory control register 1 (FLMCR1) is set. The erase-verify time is not included.)

4. Maximum programming time (t

P (max.)) = wait time after P bit setting (z) × maximum

programming count (N)

5. Set the maximum programming count (N) according to the actual set values of z1, z2,

and z3, so that it does not exceed the maximum programming time (t

P (max.)). The wait

time after P bit setting (z1, z2) should be changed as follows according to the value of

the programming count (n).

Programming count (n)

≤ n ≤ 6

z1 = 30 µs

≤ n ≤ 1000 z2 = 200 µs

6. Maximum erase time (t

E (max.)) = wait time after E bit setting (z) × maximum erase

count (N)

7. Set the maximum erase count (N) according to the actual set value of (z), so that it

does not exceed the maximum erase time (t

E (max.)).

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