R5F21324ANSP#U1 Renesas Electronics America, R5F21324ANSP#U1 Datasheet - Page 116
R5F21324ANSP#U1
Manufacturer Part Number
R5F21324ANSP#U1
Description
MCU 1KB FLASH 16K ROM 20-LSSOP
Manufacturer
Renesas Electronics America
Series
R8C/3x/32Ar
Datasheet
1.R5F21322ANSPU1.pdf
(629 pages)
Specifications of R5F21324ANSP#U1
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, PWM, Voltage Detect, WDT
Number Of I /o
15
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
20-LSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Under development
R8C/32A Group
REJ09B0458-0020 Rev.0.20
Page 86 of 583
7.6
Figure 7.9
Table 7.26
Notes:
Ports P1, P3_3 to P3_5,
P3_7, P4_5 to P4_7
Port P4_2/VREF
RESET
Table 7.26 lists Unassigned Pin Handling. Figure 7.9 shows the 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
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
Pin Name
(3)
Preliminary specification
Specifications in this manual are tentative and subject to change.
Unassigned Pin Handling
Unassigned Pin Handling
• After setting to input mode, connect each pin to VSS via a resistor (pull-down)
• After setting to output mode, leave these pins open.
Connect to VCC
Connect to VCC via a pull-up resistor
Note:
or connect each pin to VCC via a resistor (pull-up).
Nov 05, 2008
1. When the power-on reset function is in use.
P3_3 to P3_5,
P4_5 to P4_7
Port P1,
P3_7,
MCU
Port P4_2/VREF
(Output mode)
(Input mode )
(Input mode)
RESET
:
:
(1)
Connection
Open
:
:
(2)
(2)
(1, 2)
7. I/O Ports
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