R5F212B7SNFP#U0 Renesas Electronics America, R5F212B7SNFP#U0 Datasheet - Page 509

• Manufacturer Part Number: R5F212B7SNFP#U0
• Description: IC R8C/2B MCU FLASH 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/2Br

Specifications of R5F212B7SNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 55
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: R0K5212D8S001BE - KIT STARTER FOR R8C/2DR0K5212D8S000BE - KIT DEV FOR R8C/2D
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/2A Group, R8C/2B Group
Rev.2.00
REJ09B0324-0200
19. D/A Converter
The D/A converters are 8-bit R-2R type units. There are two independent D/A converters.
D/A conversion is performed by writing to the DAi register (i = 0 or 1). To output the conversion result, set the DAiE
bit in the DACON register to 1 (output enabled). Before using D/A conversion, the corresponding port direction bit
must be set to 0 (input mode). Setting the DAiE bit to 1 removes the pull-up from the corresponding port.
The output analog voltage (V) is determined by the setting value n (n: decimal) of the DAi register.
Table 19.1 lists the D/A Converter Specifications. Figure 19.1 shows the Block Diagram of D/A Converter. Figure
19.2 shows the D/A converter related registers. Figure 19.3 shows the D/A Converter Equivalent Circuit.
Figure 19.1
Table 19.1
D/A conversion method
Resolution
Analog output pins
Nov 26, 2007
D/A Converter Specifications
Block Diagram of D/A Converter
V = Vref × n/ 256 (n = 0 to 255)
Item
R-2R resistor ladder
R-2R resistor ladder
Page 487 of 580
DA0 register
DA1 register
Vref: Reference voltage
R-2R method
8 bits
2 (DA0 and DA1)
DA1E bit
DA0E bit
Performance
0
1
1
0
DA0
DA1
19. D/A Converter