R5F21256SNFP#U0 Renesas Electronics America, R5F21256SNFP#U0 Datasheet - Page 321
R5F21256SNFP#U0
Manufacturer Part Number
R5F21256SNFP#U0
Description
IC R8C MCU FLASH 32K 52LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/25r
Datasheets
1.R5F211A2SPU0.pdf
(300 pages)
2.R5F21246SDFPU0.pdf
(61 pages)
3.R5F21246SDFPU0.pdf
(527 pages)
Specifications of R5F21256SNFP#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
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K 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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21256SNFP#U0R5F21256SNFP#ES
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 15.11
• Example of receive timing when transfer data is 8 bits long (parity disabled, one stop bit)
UiBRG output
UiC1 register
RE bit
RXDi
Transfer clock
UiC1 register
RI bit
SiRIC register
IR bit
Feb 29, 2008
Receive Timing Example in UART Mode
The above timing diagram applies when the register bits are set as follows:
• UiMR register PRYE bit = 0 (parity disabled)
• UiMR register STPS bit = 0 (1 stop bit)
i = 0 or 1
1
0
1
0
1
0
Reception triggered when transfer clock
is generated by falling edge of start bit
Page 302 of 485
Start bit
Determined to be “L” Receive data taken in
D0
Set to 0 when interrupt request is accepted, or set by a program
D1
Transferred from UARTi receive
register to UiRB register
D7
Stop bit
15. Serial Interface
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