R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 682

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

Specifications of R5F21346CNFP#U0

• 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: 43
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 649 of 723
Figure 31.17
Table 31.7
I: Input
VCC, VSS
RESET
P4_6/XIN
P4_7/XOUT
P4_3/XCIN
P4_4/XCOUT
P0_0 to P0_7
P1_0 to P1_3,
P1_6, P1_7
P2_0 to P2_7
P3_0 and P3_1,
P3_3 to P3_5, P3_7
P4_2/VREF, P4_5
MODE
P1_4
P1_5
Pin
Notes:
Data output
O: Output
Data input
1. In this example, modes are switched between single-chip mode and standard serial I/O mode
2. When operating with the on-chip oscillator clock, it is not necessary to connect an oscillation
Pin Functions (Flash Memory Standard Serial I/O Mode 2)
Pin Handling in Standard Serial I/O Mode 2
Refer to Appendix Figure 2.1 Connection Example with M16C Flash Starter (M3A-0806).
by controlling the MODE input with a switch.
circuit.
User reset signal
Power supply input
Reset input
P4_6 input/clock input
P4_7 input/clock output I/O
P4_3 input/clock input
P4_4 input/clock output I/O
Input port P0
Input port P1
Input port P2
Input port P3
Input port P4
MODE
TXD output
RXD input
I/O: Input and output
Name
TXD
RXD
RESET
Connect an oscillator
I/O
I/O Input a “L” level signal.
O Serial data output pin
I
I
I
I
I
I
I
I
I
XIN
Apply the guaranteed programming and erasure
voltage to the VCC pin and 0 V to the VSS pin.
Reset input pin
Connect a ceramic resonator or crystal oscillator
between pins XIN and XOUT.
Connect a crystal oscillator between pins XCIN and
XCOUT.
Input a “H” or “L” level signal or leave open.
Input a “H” or “L” level signal or leave open.
Input a “H” or “L” level signal or leave open.
Input a “H” or “L” level signal or leave open.
Input a “H” or “L” level signal or leave open.
Serial data input pin
MCU
XOUT
MODE
AVSS
AVCC
VSS
VCC
(2)
Description
31. Flash Memory