UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 529

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

• When AMPH = 0
• When AMPH = 1
• When AMPH = 0
Standby release signal
Standby release signal
Standby release signal
(external clock input)
Note
Remark The broken lines indicate the case when the interrupt request that has released the standby mode
Internal high-speed
Internal high-speed
oscillation clock
oscillation clock
Status of CPU
(2) When high-speed system clock (external clock input) is used as CPU clock (2/2)
Status of CPU
Status of CPU
system clock
The wait time is as follows:
High-speed
• When vectored interrupt servicing is carried out:
• When vectored interrupt servicing is not carried out:
is acknowledged.
Figure 21-6. STOP Mode Release by Interrupt Request Generation (2/2)
(3) When internal high-speed oscillation clock is used as CPU clock
(internal high-speed
Normal operation
(internal high-speed
Normal operation
Normal operation
oscillation clock)
system clock)
oscillation clock)
(high-speed
Oscillates
Oscillates
Oscillates
CHAPTER 21 STANDBY FUNCTION
instruction
instruction
instruction
STOP
STOP
STOP
User’s Manual U17260EJ6V0UD
Oscillation stopped
Oscillation stopped
Oscillation stopped
STOP mode
STOP mode
STOP mode
Interrupt
request
Interrupt
Interrupt
request
request
(4.06 to 16.12 s)
Supply of the CPU
clock is stopped
Wait
Wait
accuracy stabilization
accuracy stabilization
Wait for oscillation
Wait for oscillation
Note
Note
(86 to 361 s)
(86 to 361 s)
8 or 9 clocks
2 or 3 clocks
µ
(internal high-speed
Normal operation
oscillation clock)
Normal operation
Oscillates
system clock)
Wait
Oscillates
(high-speed
µ
Oscillates
µ
Note
(internal high-speed
Normal operation
oscillation clock)
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