R5F21257SDFP#U0 Renesas Electronics America, R5F21257SDFP#U0 Datasheet - Page 371

• Manufacturer Part Number: R5F21257SDFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21257SDFP#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: -40°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 16.36
ICCR1 register
(master output)
(master output)
(slave output)
ICSR register
ICDRR register
ICDRS register
RCVD bit in
RDRF bit in
by program
Processing
Feb 29, 2008
SDA
SDA
SCL
1
0
1
0
Operating Timing in Master Receive Mode (I
Data n-1
A
9
(5) Set RCVD bit to 1 before
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Data n-1
reading ICDRR register
b7
1
b6
2
b5
3
b4
4
(6) Stop condition
generation
b3
5
b2
6
2
C bus Interface Mode) (2)
b1
7
(7) Read ICDRR register before
16. Clock Synchronous Serial Interface
setting RCVD bit to 0
Data n
b0
8
A/A
Data n
9
(8) Set to slave receive mode