HD64F3437TF16 Datasheet, PDF (10/752 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.

3. Differences in S-Mask Model
Table 2 shows the differences between the H8/3437F (dual-power-supply specification) and
H8/3437SF (single-power-supply specification).
Table 2 Differences between H8/3437F and H8/3437F S-Mask Model
Item
Dual-Power-Supply Model:
H8/3437F
Single-Power-Supply Model:
H8/3437F S-Mask Model
Program/
erase voltage
12 V must be applied from off-chip
V_PP (12.0 V ±0.6 V)
FV_PP (FWE)
pin function
Dual function as FV_PP power supply
and STBY function
12 V application not required
V_CC single-power-supply programming
V_CC (5.0 V ±10%)
No programming control pin
Programming
modes
• Writer mode
• On-board
 Boot mode
 User programming mode
(See section 21 for the use of these
modes)
Operating
•
modes allowing
on-board
•
programming ^•
Writer mode
Boot mode
User programming mode
(See section 21 for the use of these
modes)
On-board
programming
unit
1-byte-unit programming
32-byte-unit programming
Programming
with PROM
programmer
Select Hitachi stand-alone flash
memory HN28F101 setting
Special programming mode setting
required. Use of PROM programmer
that supports Hitachi microcomputer
device types with 64-kbyte on-chip flash
memory. (128-byte-unit fast page
programming)
Boot mode
setting
method
Reset release after MD₁ = FV_PP/STBY =
12 V application
Pin
MD₁ MD₀ P9₂ P9₁ P9₀
Setting level 0 0 1 1 1
Reset release after above pin settings
User program
mode setting
method
FV_PP = 12 V application
Control bits set by software