UPD78F0535GB(T)-UEU-A NEC, UPD78F0535GB(T)-UEU-A Datasheet - Page 528
UPD78F0535GB(T)-UEU-A
Manufacturer Part Number
UPD78F0535GB(T)-UEU-A
Description
8BIT MCU, 60K FLASH, 3KB RAM, LQFP
Manufacturer
NEC
Datasheet
1.UPD78F0535GBT-UEU-A.pdf
(773 pages)
Specifications of UPD78F0535GB(T)-UEU-A
Controller Family/series
UPD78
No. Of I/o's
55
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
60KB
Oscillator Type
External, Internal
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• When AMPH = 1
The STOP mode can be released by the following two sources.
(a) Release by unmasked interrupt request
Standby release signal
Standby release signal
(external clock input)
When an unmasked interrupt request is generated, the STOP mode is released. If interrupt acknowledgment
is enabled, vectored interrupt servicing is carried out. If interrupt acknowledgment is disabled, the next
address instruction is executed.
Note
Remark The broken lines indicate the case when the interrupt request that has released the standby mode
(2) When high-speed system clock (external clock input) is used as CPU clock (1/2)
Status of CPU
(X1 oscillation)
system clock
Status of CPU
The wait time is as follows:
High-speed
system clock
High-speed
• When vectored interrupt servicing is carried out:
• When vectored interrupt servicing is not carried out:
is acknowledged.
(1) When high-speed system clock (X1 oscillation) is used as CPU clock
Figure 21-6. STOP Mode Release by Interrupt Request Generation (1/2)
Normal operation
Normal operation
system clock)
system clock)
(high-speed
Oscillates
(high-speed
Oscillates
instruction
CHAPTER 21 STANDBY FUNCTION
STOP
instruction
STOP
User’s Manual U17260EJ6V0UD
Oscillation stopped
STOP mode
Oscillation stopped
STOP mode
Interrupt
request
Interrupt
request
Oscillation stabilization time (set by OSTS)
Oscillation stabilization wait
Supply of the CPU
(160 external
clock is stopped
(HALT mode status)
clocks)
(set by OSTS)
Oscillates
8 or 9 clocks
2 or 3 clocks
Wait
Wait
Oscillates
Note
Normal operation
Normal operation
system clock)
system clock)
(high-speed
(high-speed
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