R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 37

• 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
REJ03B0117-0300
Figure 5.5
4-Wire Bus Communication Mode, Slave, CPHS = 1
4-Wire Bus Communication Mode, Slave, CPHS = 0
Feb 29, 2008
SSCK (input)
SSCK (input)
SSI (output)
SSO (input)
(CPOS = 1)
(CPOS = 0)
SCS (input)
SSCK (input)
SSCK (input)
SSI (output)
SSO (input)
(CPOS = 1)
(CPOS = 0)
I/O Timing of Clock Synchronous Serial I/O with Chip Select (Slave)
SCS (input)
CPHS, CPOS: Bits in SSMR register
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t
SA
V
IH
V
t
IH
LEAD
or V
V
or V
IH
t
OH
V
SA
or V
IH
OH
t
LEAD
or V
OH
t
t
LO
t
t
SU
SU
OH
HI
t
LO
t
t
HI
t
LO
HI
t
H
t
H
t
t
LO
HI
t
FALL
t
SUCYC
t
SUCYC
t
FALL
t
OD
t
OD
t
RISE
t
RISE
t
LAG
5. Electrical Characteristics
t
OR
t
LAG
t
OR