參數(shù)資料
型號(hào): R5F21248SNXXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52
封裝: 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52
文件頁數(shù): 56/61頁
文件大小: 529K
代理商: R5F21248SNXXXFP
R8C/24 Group, R8C/25 Group
1. Overview
Rev.3.00
Feb 29, 2008
Page 4 of 51
REJ03B0117-0300
1.3
Block Diagram
Figure 1.1
Block Diagram
R8C/Tiny Series CPU core
A/D converter
(10 bits
× 12 channels)
System clock
generation circuit
XIN-XOUT
High-speed on-chip oscillator
Low-speed on-chip oscillator
XCIN-XCOUT
UART or
clock synchronous serial I/O
(8 bits
× 2 channels)
Memory
Watchdog timer
(15 bits)
ROM(1)
RAM(2)
Multiplier
R0H
R0L
R1H
R2
R3
R1L
A0
A1
FB
SB
USP
ISP
INTB
PC
FLG
I/O ports
NOTES:
1. ROM size varies with MCU type.
2. RAM size varies with MCU type.
I2C bus interface or clock synchronous
serial I/O with chip select
(8 bits
× 1 channel)
8
Port P1
6
Port P3
3
Port P4
8
Port P0
8
Port P2
8
Port P6
LIN module
(1 channel)
Timers
Timer RA (8 bits)
Timer RB (8 bits)
Timer RD
(16 bits
× 2 channels)
Timer RE (8 bits)
Peripheral functions
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