R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 566

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

Specifications of R5F21346CNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 43
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 533 of 723
Figure 26.1
Table 26.2
SDA
SCL
SCL
SDA
Pin Name
I
Pin Configuration of I
2
C bus interface Block Diagram
canceller
P3_5
P3_7
canceller
Output
control
Noise
Output
control
Noise
Assigned Pin
2
C bus Interface
check circuit
check circuit
Arbitration
Bus state
Clock I/O pin
Data I/O pin
Transmit/receive
control circuit
ICDRR register
ICDRT register
ICDRS register
ICIER register
Function
Address comparison
Interrupt generation
Transfer clock
ICCR1 register
ICCR2 register
ICMR register
ICSR register
SAR register
generation
circuit
circuit
circuit
(TXI, TEI, RXI, STPI, NAKI)
f1
26. I
Interrupt request
2
C bus Interface