UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 153

• Manufacturer Part Number: UPD78F9222MC(T)-5A4-A
• Description: 8BIT MCU, 4K FLASH, 256B RAM, 78F9222
• Manufacturer: NEC

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

Figure 9-4. Status Transition Diagram When “Low-Speed Internal Oscillator Cannot Be Stopped”
HALT instruction
Is Selected by Option Byte
WDTE = “ACH”
Clear WDT counter.
WDT count continues.
HALT
WDT clock: f
Overflow time: 4.27 ms to 546.13 ms (MAX.)
WDT count continues.
CHAPTER 9 WATCHDOG TIMER
WDT clock: f
Overflow time: 546.13 ms (MAX.)
Interrupt
User’s Manual U16898EJ5V0UD
RL
STOP instruction
Reset
RL
WDT clock is fixed to f
Select overflow time (settable only once).
WDT count continues.
STOP
Interrupt
RL
.
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