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H8S2668 Datasheet, PDF (647/667 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series
Section 21 Electrical Characteristics
21.1.6 Flash Memory Characteristics
Table 21.12 Flash Memory Characteristics
Conditions: VCC = 3.0 V to 3.6 V, AVCC = 3.0 V to 3.6 V, Vref = 3.0 V to AVCC,
VSS = AVSS = 0 V, Ta = 0°C to 75°C (program/erase operating temperature range:
regular specifications), Ta = 0°C to 85°C (program/erase operating temperature
range: wide-range specifications)
Item
Programming time*1 *2 *4
Erase time*1 *3 *6
Rewrite times
Data retention time*3
Programming Wait time after SWE bit
setting*1
Wait time after PSU bit
setting*1
Wait time after P bit
setting*1 *4
Wait time after P bit
clearing*1
Wait time after PSU bit
clearing*1
Wait time after PV bit
setting*1
Wait time after H'FF
dummy write*1
Wait time after PV bit
clearing*1
Wait time after SWE bit
clearing*1
Maximum number of
writes*1 *4
Symbol Min
Typ
Max
tP
—
10
200
tE
NWEC
tDRP
x
—
50
1000
100*1
10
1
10000*2 —
—
—
—
—
Test
Unit
Conditions
ms/
128 bytes
ms/
128 bytes
Times
Years
µs
y
50
—
—
µs
z z1 —
—
30
µs
z2 —
—
200
µs
z3 —
—
10
µs
α
5
—
—
µs
1≤n≤6
7 ≤ n ≤ 1000
Additional
program-ming
wait
β
5
—
—
µs
γ
4
—
—
µs
ε
2
—
—
µs
η
2
—
—
µs
θ
100
—
—
µs
N
—
—
1000*5 Times
Rev. 3.00 Feb 22, 2006 page 607 of 624
REJ09B0281-0300