HD64F2638F20J Datasheet, PDF (841/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 21A ROM
(H8S/2636 Group)
9. Before programming, check that the chip is correctly mounted in the PROM
programmer.
Overcurrent damage to the device can result if the index marks on the PROM programmer
socket, socket adapter, and chip are not correctly aligned.
10. Do not touch the socket adapter or chip during programming.
Touching either of these can cause contact faults and write errors.
Wait time:
x
Program-
ming/
erasing
possible
Wait time:
100 μs
φ
V_CC
FWE
t_OSC1
t_MDS^*3
Min. 0 μs
Min. 0 μs
MD2 to MD0^*1
RES
SWE bit
t_MDS^*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 (MD2–MD0) 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 t_MDS (min.) = 200 ns
Figure 21A-18 Power-On/Off Timing (Boot Mode)
REJ09B0103-0800 Rev. 8.00
May 28, 2010
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