R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 38

• 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 5 of 723
1.3
Figure 1.2
Figure 1.2 shows a Block Diagram.
I/O ports
Block Diagram
Peripheral functions
Block Diagram
(10 bits
Timer RC (16 bits × 1)
Timer RD (16 bits × 2)
Timer RA (8 bits × 1)
Timer RB (8 bits × 1)
Timer RE (8 bits × 1)
Watchdog timer
A/D converter
D/A converter
(8 bits
(14 bits)
×
Timers
12 channels)
Port P0
×
2)
8
Port P1
clock synchronous serial I/O
R8C CPU core
8
R0H
R1H
I
Comparator B
2
C bus or SSU
R2
R3
LIN module
(8 bits × 3)
(8 bits × 1)
FB
A0
A1
UART or
R1L
R0L
Port P2
8
Port P3
INTB
PC
SB
Notes:
USP
FLG
ISP
1. ROM size varies with MCU type.
2. RAM size varies with MCU type.
6
High-speed on-chip oscillator
Low-speed on-chip oscillator
Low-speed on-chip oscillator
System clock generation
Voltage detection circuit
for watchdog timer
XCIN-XCOUT
Port P4
XIN-XOUT
Memory
5
circuit
DTC
1
Multiplier
ROM
RAM
(1)
(2)
Port P6
8
1. Overview