M30626SPFP#U5C Renesas Electronics America, M30626SPFP#U5C Datasheet - Page 268

• Manufacturer Part Number: M30626SPFP#U5C
• Description: IC M16C/62P MCU ROMLESS 100QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/60r

Specifications of M30626SPFP#U5C

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 24MHz
• Connectivity: I²C, IEBus, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 50
• Program Memory Type: ROMless
• Ram Size: 31K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 26x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-QFP
• For Use With: 867-1000 - KIT QUICK START RENESAS 62PR0K33062PS001BE - R0K33062P STARTER KITR0K33062PS000BE - KIT EVAL STARTER FOR M16C/62PM3062PT3-CPE-3 - EMULATOR COMPACT M16C/62P/30P
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

M16C/62P Group (M16C/62P, M16C/62PT)
Rev.2.41
REJ09B0185-0241
19. D/A Converter
This is an 8-bit, R-2R type D/A converter. These are two independent D/A converters.
D/A conversion is performed by writing to the DAi register (i = 0 to 1). To output the result of conversion, set the
DAiE bit in the DACON register to “1” (output enabled). Before D/A conversion can be used, the corresponding port
direction bit must be cleared to “0” (input mode). Setting the DAiE bit to “1” removes a pull-up from the
corresponding port.
Output analog voltage (V) is determined by a set value (n : decimal) in the DAi register.
Table 19.1 lists the D/A Converter Performance. Figure 19.1 shows the D/A Converter Block Diagram. 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 Pin
Jan 10, 2006
D/A Converter Performance
D/A Converter Block Diagram
V = VREF X n/ 256 (n = 0 to 255)
Item
Data Bus Low-order
R-2R Resistor Ladder
R-2R Resistor Ladder
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DA0 Register
DA1 Register
VREF : reference voltage
R-2R method
8 bits
2 channels (DA0 and DA1)
DA0E Bit
DA1E Bit
Performance
0
1
1
0
DA0
DA1
19. D/A Converter