
Rev.3.02
Apr 10, 2008
REJ03B0177-0302
38D2 Group
NOTE:
1. For detailed specifications, confirm the descriptions in the Datasheet.
Notes on Differences between QzROM and Flash Mem-
ory Versions
(1) The memory map, the writing modes and programming
circuits vary because of the differences in their internal
memories.
(2) The oscillation parameters of XIN-XOUT and XCIN-XCOUT
may vary.
(3) The QzROM version and the flash memory version MCUs
differ in their manufacturing processes, built-in ROM, and
layout patterns. Because of these differences, characteristic
values, operation margins, A/D conversion accuracy, noise
immunity, and noise radiation may vary within the specified
range of electrical characteristics.
(4) When switching from the flash memory version to the
QzROM version, implement system evaluations equivalent
to those implemented in the flash memory version.
(5) The both operations except the electrical characteristics are
same at the emulator (emulator MCU board: M38D29T-
RLFS).
Table 5
Differences between QzROM and flash memory versions
QzROM version
Flash memory version
Oscillation circuit at reset and at returning from stop mode
Main clock XIN or on-chip oscillator selectable
by OSCSEL pin
On-chip oscillator
Termination of OSCEL/CNVSS pin
OSCSEL = “H”
OSCSEL = “L”
CNVSS = “L”
Main clock oscillation at reset and at returning from
stop mode
Oscillation on
Stop
On-chip oscillator oscillation at reset and at returning
from stop mode
Stop
Oscillation on
System clock
φ oscillation at reset and at returning
from stop mode
f(XIN)/8
f(OCO)/32
Mounting of main clock oscillation circuit
Required
Optional
On-chip oscillator oscillation in low speed-mode
Stop
Stop by setting the on-chip
oscillator stop bit because it
is not stopped.
Writing “1” to on-chip oscillator stop bit in on-chip
oscillator mode
On-chip oscillator is stopped
On-chip oscillator is not
stopped
Reset input “L” pulse width
2
μs or more
2 ms or more
Absolute maximum rating: OSCSEL/CNVSS pin
0.3 to 8.0
0.3 to VCC + 0.3
Minimum operating power source voltage
1.8 V
2.7 V
A/D converter minimum operating power source voltage
2.0 V
2.7 V