UPD78F0513AGA-GAM-AX Renesas Electronics America, UPD78F0513AGA-GAM-AX Datasheet - Page 422

• Manufacturer Part Number: UPD78F0513AGA-GAM-AX
• Description: MCU 8BIT 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2r

Specifications of UPD78F0513AGA-GAM-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 41
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2
reset (0) by software.
operation, the conversion operation is initialized, and if the ADCS bit is set (1), conversion starts again from the beginning.
13.4.2 Input voltage and conversion results
conversion result (stored in the 10-bit A/D conversion result register (ADCR)) is shown by the following expression.
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
A/D converter
operation
A/D conversion operations are performed continuously until bit 7 (ADCS) of the A/D converter mode register (ADM) is
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.
The relationship between the analog input voltage input to the analog input pins (ANI0 to ANI7) and the theoretical A/D
or
where, INT( ):
Remark ANI0 to ANI3: 78K0/KB2
SAR = INT (
ADCR = SAR × 64
(
ADCR
INTAD
ADCR
64
SAR
V
AV
ADCR: A/D conversion result register (ADCR) value
SAR:
AIN
REF
− 0.5) ×
:
ANI0 to ANI5: 38-pin products of the 78K0/KC2
ANI0 to ANI7: Products other than above
Undefined
:
Sampling
AV
Function which returns integer part of value in parentheses
Analog input voltage
AV
Successive approximation register
V
Sampling time
AIN
REF
REF
AV
1024
× 1024 + 0.5)
REF
pin voltage
≤ V
AIN
Figure 13-11. Basic Operation of A/D Converter
< (
ADCR
64
+ 0.5) ×
AV
Conversion time
1024
REF
A/D conversion
CHAPTER 13 A/D CONVERTER
Conversion
result
Conversion
result
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