UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 410

• Manufacturer Part Number: UPD78F1506GF-GAT-AX
• Description: MCU 16BIT 78K0R/LX3 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Lx3r

Specifications of UPD78F1506GF-GAT-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 78
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0R/Lx3
10.4.2 Input voltage and conversion results
theoretical A/D conversion result (stored in the 12-bit A/D conversion result register (ADCR)) is shown by the following
expression.
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
The relationship between the analog input voltage input to the analog input pins (ANI0 to ANI10, ANI15) and the
or
where, INT( ):
Figure 10-15 shows the relationship between the analog input voltage and the A/D conversion result.
Remark 78K0R/LF3:
ADCR = INT (
(ADCR − 0.5) ×
V
AV
ADCR: 12-bit A/D conversion result register (ADCR) value
AIN
REF
:
78K0R/LG3, 78K0R/LH3: ANI0-ANI10, ANI15
Figure 10-15. Relationship Between Analog Input Voltage and A/D Conversion Result
:
A/D conversion
Function which returns integer part of value in parentheses
Analog input voltage
Reference voltage of A/D converter
AV
V
AV
AIN
4096
REF
REF
result
× 4096 + 0.5)
≤ V
4095
4094
4093
AIN
SAR
< (ADCR + 0.5) ×
3
2
1
0
8192
ANI0-ANI6, ANI15
1
4096
1
8192
3
4096
AV
4096
2
REF
8192
5
Input voltage/AV
4096
3
8187
8192
REF
4094
4096
8189
8192
CHAPTER 10 A/D CONVERTER
4095
4096
8191
8192
ADCR
1
0FFFH
0FFEH
0FFDH
0003H
0002H
0001H
0000H
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