R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 408

• 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
Figure 18.5
A/D Control Register 1
b7 b6 b5 b4
NOTES:
0 0 1
1.
2. When the VCUT bit is set to 1 (connected) from 0 (not connected), w ait for 1 µs or more before starting
If the ADCON1 register is rew ritten during A/D conversion, the conversion result is undefined.
A/D conversion.
Feb 29, 2008
b3 b2
0 0
ADCON1 Register in One-Shot Mode
b1 b0
0
Bit Symbol
ADCON1
(b2-b0)
(b6-b7)
Symbol
(1)
CKS1
VCUT
BITS
Page 389 of 485
—
—
Reserved bits
8/10-bit mode select bit
Frequency select bit 1
Vref connect bit
Reserved bits
Address
Bit Name
00D7h
(2)
Set to 0.
0 : 8-bit mode
1 : 10-bit mode
Refer to the description of the CKS0 bit in the
ADCON0 register function
1 : Vref connected
Set to 0.
After Reset
Function
00h
18. A/D Converter
RW
RW
RW
RW
RW
RW