R5F21236KFP#U0 Renesas Electronics America, R5F21236KFP#U0 Datasheet - Page 435

• Manufacturer Part Number: R5F21236KFP#U0
• Description: IC R8C/23 MCU FLASH 48LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/23r

Specifications of R5F21236KFP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-LQFP
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
19.7
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Write to each bit (other than bit 6) in the ADCON0 register, each bit in the ADCON1 register, or the SMP bit
in the ADCON2 register when the A/D conversion stops (before a trigger occurs).
When the VCUT bit in the ADCON1 register is changed from 0 (VREF not connected) to 1 (VREF
connected), wait for at least 1 µs or longer before the A/D conversion starts.
When changing A/D operating mode, select an analog input pin again.
When using in one-shot mode. Ensure that the A/D conversion is completed and read the AD register. The IR
bit in the ADIC register or the ADST bit in the ADCON0 register can determine whether the A/D conversion
is completed.
When using the repeat mode, select the frequency of the A/D converter operating clock φAD or more for the
CPU clock during A/D conversion.
Do not select the fOCO-F for the φAD.
If setting the ADST bit in the ADCON0 register to 0 (A/D conversion stops) by a program and the A/D
conversion is forcibly terminated during the A/D conversion operation, the conversion result of the A/D
converter will be indeterminate. If the ADST bit is set to 0 by a program, do not use the value of AD register.
Connect 0.1 µF capacitor between the P4_2/VREF pin and AVSS pin.
Do not enter stop mode during A/D conversion.
Do not enter wait mode when the CM02 bit in the CM0 register is set to 1 (peripheral function clock stops in
wait mode) during A/D conversion.
Notes on A/D Converter
Page 413 of 501
19. A/D Converter