UPD78F1201MC-CAB-AX Renesas Electronics America, UPD78F1201MC-CAB-AX Datasheet - Page 594

• Manufacturer Part Number: UPD78F1201MC-CAB-AX
• Description: MCU 16BIT 78K0R/LX3 30-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1201MC-CAB-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

12.4.2 Input voltage and conversion results
theoretical A/D conversion result (stored in the 10-bit A/D conversion result register (ADCR)) is shown by the following
expression.
592
The relationship between the analog input voltage input to the analog input pins (ANI0 to ANI11, PGAI) and the
or
where, INT( ):
Figure 12-14 shows the relationship between the analog input voltage and the A/D conversion result.
SAR = INT (
ADCR = SAR × 64
(
Remarks
ADCR
64
V
AV
ADCR: A/D conversion result register (ADCR) value
SAR:
AIN
Figure 12-14. Relationship Between Analog Input Voltage and A/D Conversion Result
REF
− 0.5) ×
:
:
A/D conversion result
ANI0 to ANI5
ANI0 to ANI7
ANI0 to ANI9
ANI0 to ANI10 : 48-pin products of 78K0R/IC3, and 78K0R/ID3
ANI0 to ANI11 : 78K0R/IE3
AV
Function which returns integer part of value in parentheses
Analog input voltage
AV
Successive approximation register
V
AIN
REF
REF
AV
1024
× 1024 + 0.5)
REF
pin voltage
≤ V
AIN
: 78K0R/IB3
: 38-pin products of 78K0R/IC3
: 44-pin products of 78K0R/IC3
< (
1023
1022
1021
ADCR
64
SAR
3
2
1
0
CHAPTER 12 A/D CONVERTER
2048
User’s Manual U19678EJ1V1UD
+ 0.5) ×
1
1024
1
2048
AV
3
1024
1024
REF
2
2048
5
Input voltage/AV
1024
3
2043
2048
REF
1022
1024
2045
2048
1023
1024
2047
2048
ADCR
1
FFC0H
FF80H
FF40H
00C0H
0080H
0040H
0000H