HD64F3437TF16 Datasheet, PDF (11/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

Item
Programming
mode timing
Prewrite
processing
Programming
processing
EBR register
configuration
Memory map
(block
configuration)
Dual-Power-Supply Model:
H8/3437F
RES
tMDS
MD₀
MD₁
V_PP
Min 0 µs
12 V
12 V
tMDS: 4tcyc (min.)
Required before erasing
Block corresponding to programming
address must be set in EBR1/EBR2
registers before programming
EBR1, EBR2
SB0 (128 bytes)
SB1 (128 bytes)
SB2 (128 bytes)
SB3 (128 bytes)
SB4 (512 bytes)
SB5 (1 kbyte)
SB6 (1 kbyte)
SB7 (1 kbyte)
LB0 (4 kbytes)
LB1(8 kbytes)
60 kbytes
Single-Power-Supply Model:
H8/3437F S-Mask Model
RES
tMDS
MD₁,
MD₁
P9₂,
P9₁,
P9₀
Not required
tMDS: 4tcyc (min.)
Settings at left not required
EBR2
EB0 (1 kbyte)
EB1 (1 kbyte)
EB2 (1 kbyte)
EB3 (1 kbyte)
EB4 (24 kbytes)
60 kbytes
LB2 (8 kbytes)
LB3 (8 kbytes)
LB4 (8 kbytes)
EB5 (16 kbytes)
Reset during
operation
LB5 (8 kbytes)
LB6 (12 kbytes)
EB6 (12 kbytes)
LB7 (2 kbytes)
EB7 (2 kbytes)
Drive RES pin low for at least 10
system clock cycles (10ø). (RES pulse
width t_RESW = min. 10t_cyc)
Drive RES pin low for at least 20
system clock cycles (20ø). (RES pulse
width t_RESW = min. 20t_cyc)