H8SSLASH2224 datasheet(972/1071 Pages) RENESAS

972 / 1071 page

Section 27 Electrical Characteristics

Rev. 5.00 Aug 08, 2006 page 886 of 982

REJ09B0054-0500

Item

Symbol Min

Typ

Max

Unit

Test

Conditions

Erase

Wait time after SWE1

bit setting*

tsswe



µs

Wait time after ESU1

bit setting*

tsesu

100



µs

Wait time after E1 bit

setting*

tse

100

Wait time after E1 bit

clear*

tce



µs

Wait time after ESU1

bit clear*

tcesu



µs

Wait time after EV1 bit

setting*

tsev



µs

Wait time after H'FF

dummy write*

tsevr



µs

Wait time after EV1 bit

clear*

tcev



µs

Wait time after SWE1

bit clear

tcswe

100



µs

Maximum erase

count*



100

Times

Notes: 1. Make each time setting in accordance with the program/program-verify flowchart or

erase/erase-verify flowchart.

2. Programming time per 128 bytes (Shows the total period for which the P1 bit in the

flash memory control register 1 (FLMCR1) is set. It does not include the program

verification time.)

3. Block erase time (Shows the total period for which the E1 bit in FLMCR1 is set. It does

not include the erase verification time.)

4. Maximum programming time value

tp (max) = Wait time after P1 bit setting (tsp)

× maximum program count (N)

(tsp30

+ tsp10) × 6 + (tsp200) × 994

5. Relationship among the maximum erase time (tE (max)), the wait time after E1 bit

setting (tse), and the maximum erase count (N) is shown below.

tE (max) = Wait time after E1 bit setting (tse)

× maximum erase count (N)

6. The minimum times that all characteristics after rewriting are guaranteed. (A range

between 1 and minimum value is guaranteed.)

7. The reference value at 25

°C. (Normally, it is a reference that rewriting is enabled up to

this value.)

8. Data hold characteristics when rewriting is performed within the range of specifications

including minimum value.

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