R5F212D8SNFP#U0 Renesas Electronics America, R5F212D8SNFP#U0 Datasheet - Page 503

• Manufacturer Part Number: R5F212D8SNFP#U0
• Description: IC R8C/2D MCU FLASH 64KB 80-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/2Dr

Specifications of R5F212D8SNFP#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: 71
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 20x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 80-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/2C Group, R8C/2D Group
Rev.2.00
REJ09B0339-0200
18.1
Figure 18.5
Figure 18.6
18.1.1
18.1.2
18.1.3
Without Sample & Hold
Without Sample & Hold
Sample and hold
Sample and hold
With Sample & Hold
With Sample & Hold
The analog input shares pins P0_0 to P0_7, P1_0 to P1_3, and P7_0 to P7_7 in AN0 to AN19. When using the
ANi (i = 0 to 19) pin as input, set the corresponding port direction bit to 0 (input mode).
After changing the A/D operating mode, select an analog input pin again.
When the SMP bit in the ADCON2 register is set to 1 (sample and hold function enabled), the A/D conversion
rate per pin increases. The sample and hold function is available in all operating modes. Start A/D conversion
after selecting whether the sample and hold circuit is to be used or not.
Figure 18.5 shows a Timing Diagram of A/D Conversion.
Figure 18.6 shows the A/D Conversion Cycles.
Common Items for Multiple Modes
Dec 05, 2007
A/D Conversion Mode
disabled
enabled
A/D Conversion Cycles
Input/Output Pins
Sample and Hold
Timing Diagram of A/D Conversion
A/D Conversion Cycles
Page 480 of 585
Sampling time
Sampling time
4ø AD cycles
4ø AD cycles
Conversion time of 1st bit
Conversion time of 1st bit
10 bits
10 bits
8 bits
8 bits
Conversion
49φAD
59φAD
28φAD
33φAD
Time
Comparison
Comparison
time
time
Conversion time at the 1st bit
Sampling
4φAD
4φAD
4φAD
4φAD
Time
2.5ø AD cycles
Sampling time
Comparison
2nd bit
time
Comparison
2.0φAD
2.0φAD
2.5φAD
2.5φAD
* Repeat until conversion ends
Time
2nd bit
Comparison
Comparison
time
time
Conversion time at the 2nd
Sampling
2.5φAD
2.5φAD
0.0φAD
0.0φAD
Time
bit and the follows
2.5ø AD cycles
* Repeat until conversion ends
Sampling time
Comparison
time
Comparison
2.5φAD
2.5φAD
2.5φAD
2.5φAD
Time
Comparison
time
18. A/D Converter
End process
End process
8.0φAD
8.0φAD
4.0φAD
4.0φAD