参数资料
型号: AT89C51RB2-RLTIL
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: 8-bit Microcontroller with 16K/ 32K Bytes Flash
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44
封装: VQFP-44
文件页数: 2/125页
文件大小: 1528K
代理商: AT89C51RB2-RLTIL
2
AT89C51RB2/RC2
4180B
8051
04/03
In addition, the AT89C51RB2/RC2 has a Programmable Counter Array, an XRAM of
1024 Bytes, a Hardware Watchdog Timer, a Keyboard Interface, an SPI Interface, a
more versatile serial channel that facilitates multiprocessor communication (EUART)
and a speed improvement mechanism (X2 mode).
The Pinout is the standard 40/44 pins of the C52.
The fully static design reduces system power consumption of the AT89C51RB2/RC2 by
allowing it to bring the clock frequency down to any value, even DC, without loss of data.
The AT89C51RB2/RC2 has 2 software-selectable modes of reduced activity and 8-bit
clock prescaler for further reduction in power consumption. In Idle mode, the CPU is fro-
zen while the peripherals and the interrupt system are still operating. In power-down
mode, the RAM is saved and all other functions are inoperative.
The added features of the AT89C51RB2/RC2 make it more powerful for applications
that need pulse width modulation, high speed I/O and counting capabilities such as
alarms, motor control, corded phones, and smart card readers.
Block Diagram
Figure 1.
Block Diagram
Notes:
1. Alternate function of Port 1.
2. Alternate function of Port 3.
Table 1.
Memory Size
Part Number
Flash (Bytes)
XRAM (Bytes)
TOTAL RAM
(Bytes)
I/O
AT89C51RB2
16K
1024
1280
32
AT89C51RC2
32K
1024
1280
32
Timer 0
Timer 1
INT
Ctrl
RAM
256x8
T
T
R
T
WR
RD
EA
PSEN
ALE/
XTAL2
XTAL1
EUART
+
BRG
CPU
I
I
(2)
(2)
C51
CORE
(2) (2)
(2) (2)
Port 0
P
Port 1 Port 2 Port 3
Parallel I/O Ports & Ext. Bus
P
P
P
XRAM
1Kx8
IB-bus
PCA
R
PROG
Watch
Dog
P
E
V
V
C
(2)
(2)
(1)
(1)
Timer2
T
T
(1)
(1)
Flash
32Kx8 or
16Kx8
Key
Board
ROM
2Kx8
Boot
SPI
M
M
S
(1) (1) (1)
S
(1)
相关PDF资料
PDF描述
AT89C51RC 8-bit Microcontroller with 32K Bytes Flash(带32k字节闪速存储器、8位微控制器)
AT89C51SND1C-7HTIL Single-Chip Flash Microcontroller with MP3 Decoder and Guman Interface
AT83SND1CXXX-DDV Single-Chip Flash Microcontroller with MP3 Decoder and Guman Interface
AT80C51SND1C-7HTIL Single-Chip Flash Microcontroller with MP3 Decoder and Guman Interface
AT80C51SND1C-DDV Single-Chip Flash Microcontroller with MP3 Decoder and Guman Interface
相关代理商/技术参数
参数描述
AT89C51RB2-RLTIM 功能描述:IC 8051 MCU FLASH 16K 44VQFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:89C 标准包装:9 系列:87C 核心处理器:8051 芯体尺寸:8-位 速度:40/20MHz 连通性:UART/USART 外围设备:POR,WDT 输入/输出数:32 程序存储器容量:32KB(32K x 8) 程序存储器类型:OTP EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:- 振荡器型:内部 工作温度:0°C ~ 70°C 封装/外壳:40-DIP(0.600",15.24mm) 包装:管件
AT89C51RB2-RLTUL 功能描述:8位微控制器 -MCU C51RB2 FLASH 3V 16k ind RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
AT89C51RB2-RLTUM 功能描述:8位微控制器 -MCU 16kB Flash 1280B RAM 2.7V-5.5V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
AT89C51RB2-SLRIL 功能描述:IC MCU FLASH 8051 16K 3V 44-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:89C 标准包装:1,500 系列:AVR® ATtiny 核心处理器:AVR 芯体尺寸:8-位 速度:16MHz 连通性:I²C,LIN,SPI,UART/USART,USI 外围设备:欠压检测/复位,POR,PWM,温度传感器,WDT 输入/输出数:16 程序存储器容量:8KB(4K x 16) 程序存储器类型:闪存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 11x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:20-SOIC(0.295",7.50mm 宽) 包装:带卷 (TR)
AT89C51RB2-SLRIM 功能描述:IC MCU FLASH 8051 16K 5V 44-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:89C 标准包装:1,500 系列:AVR® ATtiny 核心处理器:AVR 芯体尺寸:8-位 速度:16MHz 连通性:I²C,LIN,SPI,UART/USART,USI 外围设备:欠压检测/复位,POR,PWM,温度传感器,WDT 输入/输出数:16 程序存储器容量:8KB(4K x 16) 程序存储器类型:闪存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 11x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:20-SOIC(0.295",7.50mm 宽) 包装:带卷 (TR)