UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 83
UPD78F9222MC(T)-5A4-A
Manufacturer Part Number
UPD78F9222MC(T)-5A4-A
Description
8BIT MCU, 4K FLASH, 256B RAM, 78F9222
Manufacturer
NEC
Datasheet
1.UPD78F9222MCT-5A4-A.pdf
(414 pages)
Specifications of UPD78F9222MC(T)-5A4-A
Controller Family/series
UPD78
No. Of I/o's
17
Ram Memory Size
256Byte
Cpu Speed
10MHz
No. Of Timers
4
No. Of
RoHS Compliant
Core Size
8bit
Program Memory Size
4KB
Oscillator Type
External, Internal
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Quantity:
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Part Number:
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Note The clock source of the watchdog timer (WDT) is selected from f
refer to CHAPTER 9 WATCHDOG TIMER.
Clock source of
WDT is selected
by software
LSRSTOP = 1
Figure 5-14. Status Transition of Low-Speed Internal Oscillation
Note
Can be stopped
oscillator can be stopped
Low-speed internal
Low-speed internal
oscillator stops
CHAPTER 5 CLOCK GENERATORS
User’s Manual U16898EJ5V0UD
LSRSTOP = 0
if low-speed internal oscillator
can be stopped or not
Select by option byte
power-on-clear
Reset by
application
Power
V
DD
> 2.1 V (TYP.)
oscillator cannot be stopped
Low-speed internal
X
Cannot be stopped
or f
RL
, or it may be stopped. For details,
Reset signal
Clock source of
WDT is fixed to f
RL
83
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