R5F21348UNFP datasheet(7/95 Pages) RENESAS

Part #	R5F21348UNFP

Description	The R8C/34U Group, R8C/34K Group of single-chip MCUs incorporates the R8C CPU core,

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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R8C/34U Group, R8C/34K Group

1. Overview

R01DS0113EJ0110 Rev.1.10

Page 7 of 91

Jun 15, 2011

1.3

Block Diagram

Figure 1.3 and Figure 1.4 show a Block Diagram of Each Group.

Figure 1.3

Block Diagram of R8C/34U Group

R8C CPU core

Memory

ROM (1)

RAM (2)

Multiplier

R0H

R0L

R1H

R2

R3

R1L

A0

A1

FB

SB

USP

ISP

INTB

PC

FLG

I/O ports

System clock generation

circuit

XIN-XOUT

High-speed on-chip oscillator

Low-speed on-chip oscillator

PLL frequency synthesizer

Timers

Timer RA (8 bits

× 1)

Timer RB (8 bits

× 1)

Timer RC (16 bits

× 1)

Timer RF (16 bits

× 1)

UART or

clock synchronous serial I/O

(8 bits

× 4)

I2C bus or SSU

(8 bits

× 1)

Peripheral functions

Watchdog timer

(14 bits)

Comparator B

Voltage detection circuit

DTC

Low-speed on-chip oscillator

for watchdog timer

8

Port P0

8

Port P1

5

Port P3

USB FIFO

(448 bytes)

USB Function

(USB2.0 Full speed)

4

Port P6

2

Port P7

4

Port P8

Port P4

5

Notes:

1. ROM size varies with MCU type.

2. RAM size varies with MCU type.

A/D converter

(10 bits

× 12 channels)

LIN module

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R5F21348UNFP Datasheet(PDF) 7 Page - Renesas Technology Corp

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