R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 409

• Manufacturer Part Number: R5F21257SNFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21257SNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• For Use With: R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
18.2
Table 18.3
Function
Start conditions
Stop condition
Interrupt request generation
timing
Input pin
Reading of result of A/D
converter
In repeat mode, the input voltage of one selected pin is A/D converted repeatedly.
Table 18.3 lists the Repeat Mode Specifications. Figures 18.6 and 18.7 show Registers ADCON0 and ADCON1 in
Repeat Mode.
Repeat Mode
Feb 29, 2008
Item
Repeat Mode Specifications
Page 390 of 485
The Input voltage of one pin selected by bits CH2 to CH0 and ADGSEL0 is
A/D converted repeatedly
• When the ADCAP bit is set to 0 (software trigger):
• When the ADCAP bit is set to 1 (starts in timer RD (complementary PWM
Set the ADST bit to 0
Not generated
Select one of AN0 to AN11
Read AD register
mode)):
Set the ADST bit to 1 (A/D conversion starts)
A compare match between registers TRD0 and TRDGRA0 or a TRD1
underflow is generated while the ADST bit is set to 1
Specification
18. A/D Converter