R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 579

• 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 546 of 723
Figure 26.3
26.3.2
• SDADLY1 to SDADLY0 = 00b
• SDADLY1 to SDADLY0 = 01b
• SDADLY1 to SDADLY0 = 10b
(3 × f1 cycles)
(11 × f1 cycles)
(19 × f1 cycles)
SDADLY0 to SDADLY1: Bits in PINSR register
SDA
SDA
SDA
SCL
The digital delay value for the SDA pin can be selected by bits SDADLY0 to SDADLY1 in the PINSR register.
Figure 26.3 shows the Operating Example of Digital Delay for SDA Pin.
SDA Pin Digital Delay Selection
Operating Example of Digital Delay for SDA Pin
3 × f1 cycles
11 × f1 cycles
19 × f1 cycles
20 µ s (Transfer Rate = 50 kHz)
300 ns (f1 = 10 MHz)
1.1 µ s (f1 = 10 MHz)
0.95 µ s (f1 = 20 MHz)
26. I
2
C bus Interface