R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 448

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#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: 27
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K 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: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 418 of 589
Figure 25.3
25.3.2
• SDADLY1 to SDADLY0 = 00b
• SDADLY1 to SDADLY0 = 01b
• SDADLY1 to SDADLY0 = 10b
The digital delay value for the SDA pin can be selected by bits SDADLY0 to SDADLY1 in the PINSR register.
Figure 25.3 shows the Operating Example of Digital Delay for SDA Pin.
(3 × f1 cycles)
(11 × f1 cycles)
(19 × f1 cycles)
SDADLY0 to SDADLY1: Bits in PINSR register
SDA
SDA
SDA
SCL
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)
25. I
2
C bus Interface