R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 374

• 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 16.38
(master output)
(master output)
ICCR1 register
(slave output)
(slave output)
ICSR register
ICSR register
ICDRR register
ICDRS register
ICDRT register
TDRE bit in
TEND bit in
TRS bit in
by program
Processing
Feb 29, 2008
SDA
SDA
SCL
SCL
1
0
1
0
1
0
Operating Timing in Slave Transmit Mode (I
Data n
A
9
Page 355 of 485
b7
Data n
1
b6
2
(3) Set the TEND bit to 0
b5
3
b4
4
b3
5
b2
2
6
(4) Dummy read of ICDRR register
C bus Interface Mode) (2)
after setting TRS bit to 0
b1
Slave transmit mode
7
16. Clock Synchronous Serial Interface
b0
8
9
A
(5) Set TDRE bit to 0
Slave receive
mode