R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 208

• Manufacturer Part Number: R5F21162SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/16r

Specifications of R5F21162SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 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: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/16 Group, R8C/17 Group
Rev.2.10
REJ09B0169-0210
17.5
Figure 17.9
Table 17.18
NOTES:
Ports P1, P3_3 to P3_5,
P3_7, P4_5
Ports P4_6, P4_7
AVCC, VREF
RESET
Table 17.18 lists the Unassigned Pin Handling. Figure 17.9 show the Unassigned Pin Handling.
1. When setting these ports to output mode and leaving them open, they remain input mode until they
2. Connect these unassigned pins to the microcomputer using the shortest wire length (within 2 cm)
3. When power-on reset function is used.
are switched to output mode by a program. The voltage level of these pins may be indeterminate
and the power current may increase while the ports remain input mode.
The content of the direction registers may change due to noise or out of control caused by noise. In
order to enhance program reliability, set the direction registers periodically by a program.
as possible.
Unassigned Pin Handling
Jan 19, 2006
(3)
Pin Name
Unassigned Pin Handling
Unassigned Pin Handling
Page 193 of 254
NOTES:
• After setting to input mode, connect every pin to VSS via a resistor (pull-
• After setting to output mode, leave these pins open.
Connect to VCC via a resistor (pull-up)
Connect to VCC
Connect to VCC via a resistor (pull-up)
1. When power-on reset function is used.
Port P1, P3_3 to P3_5,
down) or connect every pin to VCC via a resistor (pull-up).
Microcomputer
P3_7, P4_5
Port P4_6, P4_7
(Output mode)
AVCC/VREF
(Input mode)
(Input mode)
RESET
:
:
(1)
Connection
Open
:
:
(2)
(2)
17. Programmable I/O Ports
(1, 2)
(2)