R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 641

MCU 1KB FLASH 32K ROM 48-LQFP

R5F21346CNFP#U0

Manufacturer Part Number
R5F21346CNFP#U0
Description
MCU 1KB FLASH 32K ROM 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/34Cr
Datasheet

Specifications of R5F21346CNFP#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
43
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

Available stocks

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Price
Company:
Part Number:
R5F21346CNFP#U0
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Company:
Part Number:
R5F21346CNFP#U0
Manufacturer:
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R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 608 of 723
29. D/A Converter
The D/A converters are 8-bit R-2R type units. There are two independent D/A converters.
29.1
Figure 29.1
Table 29.1
D/A conversion method
Resolution
Analog output pins
D/A conversion is performed by writing a value 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, set the corresponding bits
PD0_6 and PD0_7 in the PD0 register to 0 (input mode) and the PU01 bit in the PUR0 register to 0 (not pulled up).
The output analog voltage (V) is determined by the setting value n (n: decimal) of the DAi register.
Table 29.1 lists the D/A Converter Specifications. Figure 29.1 shows the D/A Converter Block Diagram and Figure
29.2 shows the D/A Converter Equivalent Circuit.
Overview
D/A Converter Specifications
D/A Converter Block Diagram
V = Vref × n/ 256 (n = 0 to 255)
Item
R-2R resistor ladder
R-2R resistor ladder
DA0 register
DA1 register
Vref: Reference voltage
R-2R method
8 bits
2 (DA0 and DA1)
DA0E bit
DA1E bit
Performance
0
1
0
1
DA0
DA1
29. D/A Converter

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