UPD78F9500MA-CAC-A Datasheet, PDF (338/342 Pages) Renesas Technology Corp – 8-Bit Single-Chip Microcontrollers

Function
Details of
Function
APPENDIX D LIST OF CAUTIONS
Cautions
(15/15)
Page
On-chip
debug
function
Connecting
QB-MINI2 to
78K0S/KU1+
Electrical
specifica-
tions
For the case
where QB-
MINI2 is used
for debugging
and debugging
of INTP1 pin is
performed only
with real
machine
Absolute
maximum
ratings
X1 oscillator
characteristics
(μPD78F920x
only)
A/D converter
(μPD78F920x
only)
Recom-
−
mended
soldering
conditions
The 78K0S/KU1+ has an on-chip debug function, which is provided for
development and evaluation. Do not use the on-chip debug function in products
designated for mass production, because the guaranteed number of rewritable
times of the flash memory may be exceeded when this function is used, and
product reliability therefore cannot be guaranteed. NEC Electronics is not liable
for problems occurring when the on-chip debug function is used.
p. 280
The constants described in the circuit connection example are reference values. If p. 280
you perform flash programming aiming at mass production, thoroughly evaluate
whether the specifications of the target device are satisfied.
If debugging is performed with a real machine running, without using QB-MINI2,
write the user program using the QB-Programmer. Programs downloaded by the
debugger include the monitor program, and such a program malfunctions if it is
not controlled via QB-MINI2.
p. 282
Product quality may suffer if the absolute maximum rating is exceeded even
p. 294
momentarily for any parameter. That is, the absolute maximum ratings are rated
values at which the product is on the verge of suffering physical damage, and
therefore the product must be used under conditions that ensure that the absolute
maximum ratings are not exceeded.
When using the X1 oscillator, wire as follows in the area enclosed by the broken p. 295
lines in the above figures to avoid an adverse effect from wiring capacitance.
• Keep the wiring length as short as possible.
• Do not cross the wiring with the other signal lines.
• Do not route the wiring near a signal line through which a high fluctuating
current flows.
• Always make the ground point of the oscillator capacitor the same potential as
VSS.
• Do not ground the capacitor to a ground pattern through which a high current
flows.
• Do not fetch signals from the oscillator.
The conversion accuracy may be degraded if the level of a port that is not used
for A/D conversion is changed during A/D conversion.
p. 304
For soldering methods and conditions other than those recommended below,
contact an NEC Electronics sales representative.
Do not use different soldering methods together (except for partial heating).
p. 309
p. 309
336
User’s Manual U18172EJ3V0UD