HD64F3670 RENESAS [Renesas Technology Corp], HD64F3670 Datasheet - Page 256

• Manufacturer Part Number: HD64F3670
• Description: Hitachi Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Notes: 1. Make the time settings in accordance with the program/erase algorithms.
Rev. 2.0, 03/02, page 232 of 298
Item
Erase
2. The programming time for 128 bytes. (Indicates the total time for which the P bit in flash
3. The time required to erase one block. (Indicates the time for which the E bit in flash
4. Programming time maximum value (t
5. Set the maximum programming count (N) according to the actual set values of z1, z2,
6. Erase time maximum value (t
7. Set the maximum maximum erase count (N) according to the actual set value of (z), so
Programming count (n)
memory control register 1 (FLMCR1) is set. The program-verify time is not included.)
memory control register 1 (FLMCR1) is set. The erase-verify time is not included.)
maximum programming count (N)
and z3, so that it does not exceed the programming time maximum value (t
The wait time after P bit setting (z1, z2) should be changed as follows according to the
value of the programming count (n).
count (N)
that it does not exceed the erase time maximum value (t
Wait time after SWE
bit setting*
Wait time after ESU
bit 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 dummy write*
Wait time after EV bit clear*
Wait time after SWE
bit clear*
Maximum erase count*
1
7
n
n
1
*
1
6
1
1
1
6
1000
z1 = 30 µs
z2 = 200 µs
1
*
6
*
1
7
1
1
1
E
Symbol
x
y
z
N
(max)) = wait time after E bit setting (z)
P
(MAX)) = wait time after P bit setting (z)
Test
Condition
Min
1
100
10
10
10
20
2
4
100
—
E
(max)).
Typ
—
—
—
—
—
—
—
—
—
—
Max
—
—
100
—
—
—
—
—
—
120
maximum erase
P
(MAX)).
Unit
µs
µs
ms
µs
µs
µs
µs
µs
µs
Times