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参数资料
型号： AT89C51RC2-3CSIM
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, PDIP40
封装： PLASTIC, DIP-40
文件页数： 9/125页
文件大小： 1528K
代理商： AT89C51RC2-3CSIM
9
AT89C51RB2/RC2
4180B
–
8051
–
04/03
Table 12.
Pin Description for 40 - 44 Pin Packages
Mnemonic
Pin Number
Type
Name and Function
DIL
LCC
VQFP44 1.4
V
SS
20
22
16
I
Ground
: 0V reference
V
CC
40
44
38
I
Power Supply
: This is the power supply voltage for normal, idle and power-down
operation
P0.0 - P0.7
39 - 32
43 - 36
37 - 30
I/O
Port 0
: Port 0 is an open-drain, bi-directional I/O port. Port 0 pins that have 1s
written to them float and can be used as high impedance inputs. Port 0 must be
polarized to V
or V
in order to prevent any parasitic current consumption. Port 0
is also the multiplexed low-order address and data bus during access to external
program and data memory. In this application, it uses strong internal pull-up when
emitting 1s. Port 0 also inputs the code Bytes during Flash programming. External
pull-ups are required during program verification during which P0 outputs the code
Bytes.
P1.0 - P1.7
1 - 8
2 - 9
40 - 44
1 - 3
I/O
Port 1
: Port 1 is an 8-bit bi-directional I/O port with internal pull-ups. Port 1 pins that
have 1s written to them are pulled high by the internal pull-ups and can be used as
inputs. As inputs, Port 1 pins that are externally pulled low will source current
because of the internal pull-ups. Port 1 also receives the low-order address Byte
during memory programming and verification.
Alternate functions for AT89C51RB2/RC2
Port 1 include:
1
2
40
I/O
P1.0
: Input/Output
I/O
T2 (P1.0):
Timer/Counter 2 external count input/Clockout
2
3
41
I/O
P1.1:
Input/Output
I
T2EX:
Timer/Counter 2 Reload/Capture/Direction Control
I
SS:
SPI Slave Select
3
4
42
I/O
P1.2:
Input/Output
I
ECI:
External Clock for the PCA
4
5
43
I/O
P1.3:
Input/Output
I/O
CEX0:
Capture/Compare External I/O for PCA Module 0
5
6
44
I/O
P1.4:
Input/Output
I/O
CEX1:
Capture/Compare External I/O for PCA Module 1
6
7
1
I/O
P1.5:
Input/Output
I/O
CEX2:
Capture/Compare External I/O for PCA Module 2
I/O
MISO:
SPI Master Input Slave Output line
When SPI is in master mode, MISO receives data from the slave peripheral. When
SPI is in slave mode, MISO outputs data to the master controller.
7
8
2
I/O
P1.6
: Input/Output
I/O
CEX3:
Capture/Compare External I/O for PCA Module 3
I/O
SCK:
SPI Serial Clock
SCK outputs clock to the slave peripheral
8
9
3
I/O
P1.7
: Input/Output:
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相关代理商/技术参数
参数描述
AT89C51RC2-3CSUM 功能描述:8位微控制器 -MCU 32kB 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
AT89C51RC-24AC 功能描述:8位微控制器 -MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 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
AT89C51RC-24AI 功能描述:8位微控制器 -MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 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
AT89C51RC-24AU 功能描述:8位微控制器 -MCU 32K FLASH 4.0 TO 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
AT89C51RC-24JC 功能描述:8位微控制器 -MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 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
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