R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 473

• Manufacturer Part Number: R5F21324CNSP#U0
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Cr

Specifications of R5F21324CNSP#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: 15
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 444 of 573
Figure 27.1
Timer RC trigger
Software trigger
ADTRG
Do not set.
VREF
AVSS
On-chip reference voltage
fOCO-F
Block Diagram of A/D Converter
f1
ADSTBY = 0
ADSTBY = 1
ADCAP1 to ADCAP0
Note:
CKS0 to CKS2, ADCAP0 to ADCAP1: Bits in ADMOD register
CH0 to CH2, SCAN0 to SCAN1, ADGSEL0 to ADGSEL1: Bits in ADINSEL register
ADEX0, ADSTBY, ADDDAEN, ADDDAEL: Bits in ADCON1 register
OCVREFAN: Bit in OCVREFCR register
= 00b
= 01b
= 10b
= 11b
ADDDAEL
(OCVREF)
1. When on-chip reference voltage is used as analog input, first set the ADEX0
P1_2/AN10
P1_3/AN11
bit to 1 (on-chip reference voltage selected) and then set the OCVREFAN bit to
1 (on-chip reference voltage and analog input are connected).
When on-chip reference voltage is not used as analog input, first set the
OCVREFAN bit to 0 (on-chip reference voltage and analog input are cut off)
and then set the ADEX0 bit to 0 (extended analog input pin not selected).
CKS2 = 0
P1_0/AN8
P1_1/AN9
CKS2 = 1
fAD
OCVREFAN = 0
OCVREFAN = 1
Trigger
(Note 1)
1/2
Analog circuit
CH2 to CH0 = 000b
CH2 to CH0 = 001b
CH2 to CH0 = 010b
CH2 to CH0 = 011b
AD0 register
AD1 register
AD2 register
AD3 register
AD4 register
AD5 register
AD6 register
AD7 register
Data bus
Successive conversion
register
1/2
1/2
ADGSEL1 to ADGSEL0
ADDDAEN=0
ADDDAEN=1
ADGSEL1 to ADGSEL0
= 00b
= 01b
= 10b
= 11b
CH2 to CH0
CKS1 to CKS0
ADEX0 = 0
ADEX0 = 1
= 01b
SCAN1 to SCAN0
Decoder
= 11b
Vref
Vin
φAD
27. A/D Converter
Comparator