Renesas H8S Series Hardware Manual page 754

Table 22-22 Flash Memory Characteristics (HD64F2398F20T, HD64F2398TE20T)
= 5.0 V ± 10%, AV
Conditions: V
CC
T = 0 to +75°C (Programming/erasing operating temperature, regular specifications), T
a
(Programming/erasing operating temperature, wide-range specifications)
Item
Programming time*
Erase time*
Reprogramming count
Programming Wait time after SWE bit setting*
Erase
Notes: 1. Settings of each time must comply with algorithm of writing/erasing.
2. Writing time for 128 bytes: indicates the total period in which bit P of flash memory control register 1 (FLMCR1)
is set. Writing verification time is not included.
3. Erasing time for one block: indicates the period in which bit E of FLMCR1 is set. Erasing verification time is not
included.
4. Maximum writing time: t
Rev.6.00 Oct.28.2004 page 726 of 1016
REJ09B0138-0600H
= 5.0 V ± 10%, V
CC
1 2 4
* *
1 3 6
* *
Wait time after PSU bit setting*
Wait time after P bit setting*
Wait time after P bit clear*
Wait time after PSU bit clear*
Wait time after PV bit setting*
Wait time after H'FF dummy
1
write*
Wait time after PV bit clear*
Wait time after SWE bit clear*
Maximum programming
1 4
count*
*
Wait time after SWE bit
1
setting*
Wait time after ESU bit
1
setting*
Wait time after E bit setting*
Wait time after E bit clear*
Wait time after ESU bit clear*
Wait time after EV bit setting*
Wait time after H'FF dummy
1
write*
Wait time after EV bit clear*
Wait time after SWE bit clear*
Maximum erase count*
(max) = Σ wait time (z) after setting of bit P
P
= 4.5 V to AV
ref
Symbol Min
t —
P
t —
E
N —
WEC
1
x 1
1
y 50
1 4
* z (z1) —
(z2) —
(z3) —
α
1
5
β
1
5
γ
1
4
ε
2
η
1
2
θ
1
100
N —
x 1
y 100
1 6
z —
*
α
1
10
β
1
10
γ
1
20
ε
2
η
1
4
θ
1
100
1 6
* N —
, V = AV = 0V
CC SS SS
Typ Max Unit
10 200 ms/128
bytes
50 1000 ms/block
— 1000 Times
µs
— —
µs
— —
µ
— 30
µs
— 200
µs
— 10
µs
— —
µs
— —
µs
— —
µs
— —
µs
— —
µs
— —
5
— 1000* Times
µs
— —
µs
— —
— 10 ms
µs
— —
µs
— —
µs
— —
µs
— —
µs
— —
µs
— —
— 100 Times
= 0 to + 85°C
a
Test
Condition
s1 ≤ n ≤ 6
7 ≤ n ≤ 1000
Additional
program-
ming wait
Erase time
wait