HD64F38602R Datasheet, PDF (442/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 21 Electrical Characteristics
Item
Test
Symbol Condition
Values
Min. Typ. Max. Unit
Erase
Wait time after setting SWE bit*¹ x
1
— — µs
Wait time after setting ESU bit*¹
y
100 — — µs
Wait time after setting E bit*¹*⁶
z
10 — 100 ms
Wait time after clearing E bit*¹
α
10 — — µs
Wait time after clearing ESU bit*¹ β
10 — — µs
Wait time after setting EV bit*¹
γ
20 — — µs
Wait time after dummy write*¹
ε
2
— — µs
Wait time after clearing EV bit*¹
η
4
— — µs
Wait time after clearing SWE bit*¹ θ
100 — — µs
Maximum erasing count*¹*⁶*⁷
N
— — 120 Times
Notes: 1. Make the time settings in accordance with the programming/erasing algorithms.
2. The programming time for 128 bytes. (Indicates the total time for which the P bit in the
flash memory control register 1 (FLMCR1) is set. The programming-verifying time is
not included.)
3. The time required to erase one block. (Indicates the total time for which the E bit in the
flash memory control register 1 (FLMCR1) is set. The erasing-verifying time is not
included.)
4. Programming time maximum value (t_P (max.)) = wait time after setting P bit (z) ×
maximum programming count (N)
5. Set the maximum programming count (N) according to the actual set values of z1, z2,
and z3, so that it does not exceed the programming time maximum value (t (max.)).
P
The wait time after setting P bit (z1, z2) should be changed as follows according to the
value of the programming count (n).
Programming count (n)
1≤n≤6
z1 = 30 µs
7 ≤ n ≤ 1000 z2 = 200 µs
6. Erasing time maximum value (t (max.)) = wait time after setting E bit (z) × maximum
E
erasing count (N)
7. Set the maximum erasing count (N) according to the actual set value of (z), so that it
does not exceed the erasing time maximum value (t_E (max.)).
8. The minimum number of times in which all characteristics are guaranteed following
reprogramming. (The guarantee covers the range from 1 to the minimum value.)
9. Reference value at 25°C. (Guideline showing programming count over which
functioning will be retained under normal circumstances.)
10. Data retention characteristics within the range indicated in the specifications, including
the minimum programming count.
11. Applies to an operating voltage range when reading data of 2.7 to 3.6 V.
12. Applies to an operating voltage range when reading data of 1.8 to 3.6 V.
Rev. 3.00 May 15, 2007 Page 410 of 516
REJ09B0152-0300