3069RF-ZTAT Datasheet, PDF(762/1003 Page) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

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3069RF-ZTAT Datasheet, PDF (762/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

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21.2.6 Flash Memory Characteristics

Table 21.20 shows the flash memory characteristics.

Table 21.20 Flash Memory Characteristics

Conditions: VCC = AVCC = 4.5 V to 5.5 V, VSS = AVSS = 0 V,

Ta = 0Â°C to +85Â°C (operating temperature range for programming/erasing :

Wide-range specifications)

Item

Symbol Min Typ Max Unit

Notes

Programming time*1 *2 *4

tP

â

3

30 ms/

128 bytes

Erase time*1 *2 *4

tE

â

80

800 ms/4k

blocks

â

500 5000 ms/32k

blocks

â

1000 10000 ms/64k

blocks

Programming time (total)*1 *2 *4

Î£tP

â

10

30

s/512k Ta = 25Â°C,

bytes all "0"

Erase time (total)*1 *2 *4

Î£tE

â

10

30

s/512k Ta = 25Â°C

bytes

Programming and erase time (total)*1 *2 *4

Î£tPE

â

20

60

s/512k

T = 25Â°C

a

bytes

Reprogramming count

NWEC

100*3 â

â

Data retention time*4

tDRP

10

â

â

Notes: 1. Programming and erase time depend on the data size.

times

year

2. Programming and erase time excluded the data transfer time.

3. It is the number of times of min. which guarantees all the characteristics after

reprogramming. (A guarantee is the range of a 1-min. value.)

4. It is the characteristic when reprogramming is performed by specification within the

limits including a min. value.

Rev. 5.0, 09/04, page 740 of 978

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