UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 524
UPD78F0537DGA(T)-9EV-A
Manufacturer Part Number
UPD78F0537DGA(T)-9EV-A
Description
8BIT MCU, 128K FLASH, 7KB RAM, SMD
Manufacturer
NEC
Datasheet
1.UPD78F0535GBT-UEU-A.pdf
(773 pages)
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
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(b) Release by reset signal generation
When the reset signal is generated, HALT mode is released, and then, as in the case with a normal reset
operation, the program is executed after branching to the reset vector address.
Remark f
Internal high-speed
Subsystem clock
(XT1 oscillation)
(X1 oscillation)
Status of CPU
oscillation clock
system clock
Status of CPU
Reset signal
Status of CPU
High-speed
Reset signal
Reset signal
X
: X1 clock oscillation frequency
(2) When internal high-speed oscillation clock is used as CPU clock
(1) When high-speed system clock is used as CPU clock
Normal operation
(internal high-speed
(subsystem clock)
Normal operation
Normal operation
system clock)
oscillation clock)
(high-speed
(3) When subsystem clock is used as CPU clock
Figure 21-4. HALT Mode Release by Reset
instruction
CHAPTER 21 STANDBY FUNCTION
Oscillates
instruction
Oscillates
HALT
instruction
Oscillates
HALT
HALT
User’s Manual U17260EJ6V0UD
HALT mode
HALT mode
HALT mode
Oscillation
Starting X1 oscillation is
Oscillation
stopped
period
Reset
stopped
specified by software.
Oscillation
period
Reset
stopped
period
Reset
accuracy stabilization
Wait for oscillation
(11 to 45 s)
Oscillation
processing
Starting XT1 oscillation is
(11 to 45 s)
stopped
processing
(86 to 361 s)
Reset
Oscillation
(11 to 45 s)
processing
specified by software.
Reset
stopped
Reset
µ
µ
µ
Oscillation stabilization time
Normal operation mode
(internal high-speed
µ
(internal high-speed
Oscillates
(internal high-speed
oscillation clock)
Oscillates
Normal operation
Normal operation
oscillation clock)
oscillation clock)
(2
Oscillates
11
/f
X
to 2
16
/f
X
)
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