UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 314

• 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

(7) 8-bit A/D conversion result register (ADCRH)
(8) Controller
(9) AV
(10) AV
(11) A/D converter mode register (ADM)
(12) A/D port configuration register (ADPC)
(13) Analog input channel specification register (ADS)
(14) Port mode register 2 (PM2)
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Caution When data is read from ADCR and ADCRH, a wait cycle is generated. Do not read data from
The A/D conversion result is loaded from the successive approximation register to this register each time A/D
conversion is completed, and the ADCRH register stores the higher 8 bits of the A/D conversion result.
This circuit controls the conversion time of an input analog signal that is to be converted into a digital signal, as
well as starting and stopping of the conversion operation. When A/D conversion has been completed, this
controller generates INTAD.
This pin inputs an analog power/reference voltage to the A/D converter. Make this pin the same potential as the
V
The signal input to ANI0 to ANI7 is converted into a digital signal, based on the voltage applied across AV
AV
This is the ground potential pin of the A/D converter. Always use this pin at the same potential as that of the V
pin even when the A/D converter is not used.
This register is used to set the conversion time of the analog input signal to be converted, and to start or stop the
conversion operation.
This register switches the ANI0/P20 to ANI7/P27 pins to analog input of A/D converter or digital I/O of port.
This register is used to specify the port that inputs the analog voltage to be converted into a digital signal.
This register switches the ANI0/P20 to ANI7/P27 pins to input or output.
DD
SS
REF
SS
pin when port 2 is used as a digital port.
.
pin
pin
ADCR and ADCRH when the CPU is operating on the subsystem clock and the peripheral
hardware clock is stopped. For details, see CHAPTER 35 CAUTIONS FOR WAIT.
CHAPTER 13 A/D CONVERTER
User’s Manual U17260EJ6V0UD
REF
and
SS