h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 811

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Notes: 1. Set the times according to the program/erase algorithms.
2. Programming time per 128 bytes (Shows the total period for which the P-bit in the flash
3. Block erase time (shows the total period for which the E-bit in FLMCR1 is set. It does
4. Maximum programming time (tP (max))
5. Maximum programming count (N) should be set according to the actual set value of (z1,
6. Maximum erase time (tE (max))
7. Maximum erase count (N) should be set according to the actual setting (z) to allow
8. Minimum number of times for which all characteristics are guaranteed after rewriting
9. Reference value for 25 C (as a guideline, rewriting should normally function up to this
10. Data retention characteristic when rewriting is performed within the specification range,
The number of times for writing n
1
7
memory control register (FLMCR1) is set. It does not include the programming
verification time.)
not include the erase verification time.)
tP (max) = (wait time after P-bit setting (z1) + (z3))
z2, z3) to allow programming within the maximum programming time (tP (max)). The
wait time after P-bit setting (z1, z2, z3) must be changed with the value of the number
of writing times (n) as follows.
tE (max) = Waiting time after E-bit setting (z)
erase within the maximum erase time (tE (max)).
(Guarantee range is 1 to minimum value).
value).
including the minimum value.
((N) – 6)
n
n
6
1000
z1 = 30 µs, z3 = 10 µs
z2 = 200 µs
Rev. 4.00 Jun 06, 2006 page 757 of 1004
Maximum erase count (N).
Section 25 Electrical Characteristics
6 + wait time after P-bit setting (z2)
REJ09B0301-0400