UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 297

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

A/D converter
operation
is reset (0) by software.
operation, the conversion operation is initialized, and if the ADCS bit is set (1), conversion starts again from the
beginning.
A/D conversion operations are performed continuously until bit 7 (ADCS) of the A/D converter mode register (ADM)
If a write operation is performed to the analog input channel specification register (ADS) during an A/D conversion
Reset signal generation clears the A/D conversion result register (ADCR, ADCRH) to 0000H or 00H.
INTAD
ADCR
SAR
Undefined
Sampling
Sampling time
Figure 13-12. Basic Operation of A/D Converter
CHAPTER 13 A/D CONVERTER
User’s Manual U17554EJ4V0UD
Conversion time
A/D conversion
Conversion
result
Conversion
result
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