upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 345

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

Flash
memory
Electrical
specificati
ons ((T)
product,
(S)
product,
(R)
product,
(A)
product)
Electrical
specificati
ons
(target
values)
((T2)
product)
Function
FLAPHC,
FLAPLC: Flash
address pointer
H/L compare
registers
Shifting to self
programming
mode
Shifting to
normal mode
Byte write
Absolute
maximum
ratings
X1 oscillator
characteristics
A/D converter
Absolute
maximum
ratings
Allowable loss
Details of
Function
−
−
Be sure to clear bits 4 to 7 of flash address pointer H (FLAPH) and flash address
pointer H compare register (FLAPHC) to 0 before executing the self programming
command. If the value of these bits is 1 when executing the self programming
command.
Set the number of the block subject to a block erase, verify, or blank check (same
value as FLAPH) to FLAPHC.
Clear FLAPLC to 00H when a block erase is performed, and FFH when a blank
check is performed.
Be sure to perform the series of operations described above using the user
program at an address where data is not erased nor written.
If a write results in failure, erase the block once and write to it again.
For (A) products, the specifications are target values, and may change after
device evaluation.
Product quality may suffer if the absolute maximum rating is exceeded even
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
lines in the above figures to avoid an adverse effect from wiring capacitance.
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.
These specifications show target values, which may change after device
evaluation. The operating voltage range may also change.
Product quality may suffer if the absolute maximum rating is exceeded even
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 internal pull-up resistor, calculate and add the separate power
consumption.
• 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
• Always make the ground point of the oscillator capacitor the same potential as
• Do not ground the capacitor to a ground pattern through which a high current
• Do not fetch signals from the oscillator.
current flows.
V
flows.
SS
.
APPENDIX C LIST OF CAUTIONS
User’s Manual U16994EJ3V0UD
Cautions
232, 234,
235
p. 229
p. 229
p. 229
pp. 231,
p. 243
p. 277
p. 277
p. 278
p. 285
p. 289
p. 289
pp. 290,
302
Page
(13/14)
345