HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 523

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(4) Set H'FF as the PROM programmer buffer data for addresses H'F780 to H'1FFFF. The
H8/3437F PROM size is 60 kbytes. Addresses H'F780 to H'1FFFF always read H'FF, so if H'FF is
not specified as programmer data, a verify error will occur.
(5) Notes on applying, releasing, and shutting off the programming voltage (V
Note: In this section, the application, release, and shutting-off of V
Apply the programming voltage (V
V
To prevent unintended programming or erasing of flash memory, in these power-on and
power-off timings, the application, release, and shutting-off of V
microcontroller is in a stable operating condition as defined below.
Stable operating condition
CC
The V
Clock oscillation must be stabilized (the oscillation settling time must have elapsed), and
The microcontroller must be in the reset state, or in a state in which a reset has ended
If V
the rated voltage range (V
the flash memory may be programmed or erased by mistake. This can occur even if V
0 V. To prevent changes in the V
power supply is adequately decoupled with inserting bypass capacitors.
Note: * In the LH version, V
oscillation must not be stopped
When turning on V
(t
normally (reset has been released) and flash memory is not being accessed
Apply or release V
memory (when a program in on-chip RAM or external memory is executing). Flash
memory cannot be read normally at the instant when V
flash memory while V
For a reset during operation, apply or release V
for at least ten system clock cycles (10ø).
.
Application: A rise in voltage from V
Release:
Shut-off:
OSC1
PP
= 20 ms), and do not apply V
CC
is applied, released, or shut off while the microcontroller’s V
voltage must be stabilized within the rated voltage range (V
A drop in voltage from 12 V 0.6 V to V
No applied voltage (floating).
PP
CC
either in the reset state, or when the CPU is not accessing flash
power, hold the RES pin low during the oscillation settling time
PP
is being applied or released.
CC
= 2.7 to 5.5 V)*, since microcontroller operation is unstable,
CC
PP
CC
= 3.0 V to 5.5 V.
) after the rise of V
PP
power supply when V
until after this time.
CC
to 12 V 0.6 V.
PP
only after the RES pin has been held low
CC
, and release V
PP
CC
is applied or released. Do not read
PP
.
is applied, be sure that the
PP
PP
must take place when the
are defined as follows.
CC
CC
PP
voltage is not within
= 2.7 V to 5.5 V)*
before shutting off
PP
)
CC
491
=