Rev.6.00 Oct.28.2004 page 767
of 1016
REJ09B0138-0600H
Item
Symbol Min
Typ
Max
Unit
Test
Condition
Programming Wait time after SWE bit
setting
*
1
x
10
—
—
µ
s
Wait time after PSU bit
setting
*
1
y
50
—
—
µ
s
Wait time after P bit
setting
*
1
*
4
z
150
—
200
µ
s
Wait time after P bit clear
*
1
α
10
—
—
µ
s
Wait time after PSU bit
clear
*
1
β
10
—
—
µ
s
Wait time after PV bit
setting
*
1
γ
4
—
—
µ
s
Wait time after H'FF dummy
write
*
1
ε
2
—
—
µ
s
Wait time after PV bit clear
*
1
η
4
—
—
µ
s
Maximum programming
count
*
1
*
4
N
—
—
1000
*
5
Times
Z = 200
µ
s
Erase
Wait time after SWE bit
setting
*
1
x
10
—
—
µ
s
Wait time after ESU bit
setting
*
1
y
200
—
—
µ
s
Wait time after E bit
setting
*
1
*
6
z
5
—
10
ms
Wait time after E bit clear
*
1
α
10
—
—
µ
s
Wait time after ESU bit
clear
*
1
β
10
—
—
µ
s
Wait time after EV bit
setting
*
1
γ
20
—
—
µ
s
Wait time after H'FF dummy
write
*
1
ε
2
—
—
µ
s
Wait time after EV bit clear
*
1
η
5
—
—
µ
s
Maximum erase count
*
1
*
6
N
120
—
240
Times
Notes: 1. Set the times according to the program/erase algorithms.
2. Programming time per 32 bytes (Shows the total time the flash memory control register (FLMCR) is set. It does
not include the programming verification time.)
3. Block erase time (Shows the period the E bit in FLMCR is set. It does not include the erase verification time.)
4. Maximum programming time
(t
p
(max)=wait time after P-bit setting (Z)
×
maximum programming count (N))
5. Number of times when the wait time after P bit setting (z) = 200
µ
s.
The maximum number of writes (N) should be set according to the actual set value of z so as not to exceed the
maximum programming time (t
P
(max)).
6. For the maximum erase time (t
E
(max)), the following relationship applies between the wait time after E bit setting
(z) and the maximum number of erases (N):
t
E
(max) = Wait time after E bit setting (z)
×
maximum number of erases (N)
The values of z and N should be set so as to satisfy the above formula.
Examples: When z = 5 [ms], N = 240 times
When z = 10 [ms], N = 120 times
Содержание ZTAT H8S/2357F
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