UPD78F9502MA-CAC-A NEC, UPD78F9502MA-CAC-A Datasheet - Page 112

• Manufacturer Part Number: UPD78F9502MA-CAC-A
• Description: 8BIT MCU, 4K FLASH, 128B RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F9502MA-CAC-A

• Controller Family/series: UPD78F
• No. Of I/o's: 8
• Ram Memory Size: 128Byte
• Cpu Speed: 10MHz
• No. Of Timers: 2
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

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(2) STOP mode release
Note Only when sets count clock to f
System clock
CPU clock
oscillation
Note The operation stop time is 17 s (MIN.), 34 s (TYP.), and 67 s (MAX.).
The STOP mode can be released by the following two sources.
Note The operation stop time is 17 s (MIN.), 34 s (TYP.), and 67 s (MAX.).
Remark The broken lines indicate the case when the interrupt request that has released the standby mode
(a) Release by unmasked interrupt request
When an unmasked interrupt request (8-bit timer H1, low-voltage detector, external interrupt request) is
generated, the STOP mode is released. After the oscillation stabilization time has elapsed, if interrupt
acknowledgment is enabled, vectored interrupt servicing is carried out. If interrupt acknowledgment is
disabled, the next address instruction is executed.
Standby release
System clock
STOP mode
CPU status
oscillation
is acknowledged.
STOP mode
signal
is released.
Figure 9-4. STOP Mode Release by Interrupt Request Generation
Figure 9-3. Operation Timing When STOP Mode Is Released
Oscillation
Operation
stops
Operation
mode
Note
instruction
STOP
.
RL
Preliminary User’s Manual U18681EJ1V0UD
CHAPTER 9 STANDBY FUNCTION
High-speed internal oscillation clock or external clock input
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7
STOP mode
Oscillation stops.
Interrupt
request
Operation
stops
Note
.
Operation mode
Oscillation