R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 630

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

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: -

R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 597 of 723
Figure 28.5
Figure 28.6
Note:
Note:
1. The conversion result for an open circuit varies with external circuits. Careful evaluation should be
1. The conversion result for an open circuit varies with external circuits. Careful evaluation should be
performed before using this function.
Open
Open
performed before using this function.
Selected)
Selected)
A/D Open-Circuit Detection Example on AVCC Side (Precharge before Conversion
A/D Open-Circuit Detection Example on AVSS Side (Discharge before Conversion
External circuit
External circuit
example
example
R
R
(1)
(1)
C
C
Analog input
Analog input
i = 0 to 11
i = 0 to 11
ANi
ANi
ADDDAEN
ADDDAEN
Precharge
Discharge
Chopper amp
Chopper amp
OFF
OFF
capacitor
capacitor
ON
ON
control signal
control signal
control signal
control signal
Precharge
Precharge
Discharge
Discharge
28. A/D Converter