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| HD64F2638F20J Datasheet, PDF (842/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series | |||
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Section 21A ROM
(H8S/2636 Group)
H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Wait time:
x
Program-
ming/
erasing
possible
Wait time:
100 μs
Ï
VCC
tOSC1
Min. 0 μs
FWE
MD2 to MD0*1
RES
SWE bit
tMDS*3
SWE set
SWE cleared
Period during which flash memory access is prohibited
(x: Wait time after setting SWE bit)*2
Period during which flash memory can be programmed
(Execution of program in flash memory prohibited, and data reads other than verify operations
prohibited)
Notes: 1.
2.
3.
Except when switching modes, the level of the mode pins (MD2âMD0) must be fixed until power-
off by pulling the pins up or down.
See section 24.1.7, Flash Memory Characteristics.
Mode programming setup time tMDS (min.) = 200 ns
Figure 21A-19 Power-On/Off Timing (User Program Mode)
Page 792 of 1458
REJ09B0103-0800 Rev. 8.00
May 28, 2010
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