R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 55
![IC R8C MCU FLASH 4K 20SSOP](/photos/12/35/123585/r5f211b1sp_u0_sml.jpg)
R5F211B1SP#U0
Manufacturer Part Number
R5F211B1SP#U0
Description
IC R8C MCU FLASH 4K 20SSOP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/1Br
Datasheets
1.R5F211A2SPU0.pdf
(51 pages)
2.R5F211A2SPU0.pdf
(300 pages)
3.R5F211A2SPU0.pdf
(341 pages)
Specifications of R5F211B1SP#U0
Core Processor
R8C
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
13
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
384 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
20-SSOP
For Use With
R0K5211B4S001BE - KIT STARTER FOR R8C/18191A1BR0K5211B4S000BE - KIT DEV EVALUATION R8C/1BR0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
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R8C/1A Group, R8C/1B Group
Rev.1.30
REJ09B0252-0130
5.5
Figure 5.11
Table 5.18
NOTES:
Ports P1, P3_3 to P3_5,
P3_7, P4_5
Ports P4_6, P4_7
Port P4_2/VREF
RESET
Table 5.18 lists Unassigned Pin Handling. Figure 5.11 shows Unassigned Pin Handling.
1. If these ports are set to output mode and left open, they remain in input mode until they are switched
2. Connect these unassigned pins to the MCU using the shortest wire length (2 cm or less) possible.
3. When the power-on reset function is in use.
to output mode by a program. The voltage level of these pins may be undefined and the power
supply current may increase while the ports remain in input mode.
The content of the direction registers may change due to noise or program runaway caused by
noise. In order to enhance program reliability, the program should periodically repeat the setting of
the direction registers.
Unassigned Pin Handling
Dec 08, 2006
(3)
Pin Name
Unassigned Pin Handling
Unassigned Pin Handling
Page 37 of 315
NOTE:
• After setting to input mode, connect each pin to VSS via a resistor (pull-
• After setting to output mode, leave these pins open.
Connect to VCC via a pull-up resistor
Connect to VCC
Connect to VCC via a pull-up resistor
1. When the power-on reset function is in use.
Port P1, P3_3 to P3_5,
down) or connect each pin to VCC via a resistor (pull-up).
P3_7, P4_5
MCU
Port P4_6, P4_7
Port P4_2/VREF
(Output mode)
(Input mode)
(Input mode)
RESET
:
:
(1)
Connection
Open
:
:
(2)
(2)
5. Programmable I/O Ports
(1, 2)
(2)
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