R5F21238JFP#U0 Renesas Electronics America, R5F21238JFP#U0 Datasheet - Page 325

• Manufacturer Part Number: R5F21238JFP#U0
• Description: IC R8C/23 MCU FLASH 64K 48LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/23r

Specifications of R5F21238JFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 16.10
(“L” when clock stops)
(“H” when clock stops)
(“H” when clock stops)
(“L” when clock stops)
• When SSUMS bit = 0 (clock synchronous communication mode), CPHS bit = 0 (data change at odd
• When SSUMS bit = 1 (4-wire bus communication mode) and CPHS bit = 0 (data change at odd edge)
• When SSUMS bit = 1 (4-wire bus communication mode), CPHS bit = 1 (data download at odd edge)
edge) and CPOS bit = 0 (“H” when clock stops)
CPOS = 1
CPOS = 1
SSO, SSI
CPOS = 0
SSO, SSI
CPOS = 0
Association between Transfer Clock Polarity, Phase, and Transfer Data
SSO, SSI
SCS
SCS
SSCK
SSCK
SSCK
SSCK
SSCK
CPHS and CPOS: bits in SSMR register, SSUMS: Bits in SSMR2 register
Page 303 of 501
b0
b0
b0
b1
b1
b1
b2
b2
b2
b3
b3
b3
b4
b4
b4
16. Clock Synchronous Serial Interface
b5
b5
b5
b6
b6
b6
b7
b7
b7