R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 406

• 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
18.1
Table 18.2
Function
Start condition
Stop condition
Interrupt request generation
timing
Input pin
Reading of A/D conversion
result
In one-shot mode, the input voltage of one selected pin is A/D converted once.
Table 18.2 lists the One-Shot Mode Specifications. Figures 18.4 and 18.5 show Registers ADCON0 and ADCON1
in One-Shot Mode.
One-Shot Mode
Feb 29, 2008
Item
One-Shot Mode Specifications
Page 387 of 485
The input voltage of one pin selected by bits CH2 to CH0 and ADGSEL0 is
A/D converted once
• When the ADCAP bit is set to 0 (software trigger):
• When the ADCAP bit is set to 1 (starts in timer RD (complementary PWM
• A/D conversion completes (when the ADCAP bit is set to 0 (software
• Set the ADST bit to 0
A/D conversion completes
Select one of AN0 to AN11
Read AD register
mode):
trigger) ADST bit is set to 0)
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