- 您现在的位置：买卖IC网 > PDF目录223426 > AT89S2051-24PC (ATMEL CORP) 8-bit Microcontroller with 2K/4K Bytes Flash PDF资料下载
参数资料
| 型号： | AT89S2051-24PC |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-bit Microcontroller with 2K/4K Bytes Flash |
| 中文描述： | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP20 |
| 封装： | 0.300 INCH, MS-001AD, PLASTIC, DIP-20 |
| 文件页数： | 23/46页 |
| 文件大小： | 1051K |
| 代理商： | AT89S2051-24PC |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页当前第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页
3
3390D–MICRO–3/07
AT89S2051/S4051
4.
Pin Description
4.1
VCC
Supply voltage.
4.2
GND
Ground.
4.3
Port 1
Port 1 is an 8-bit bi-directional I/O port. Port pins P1.2 to P1.7 provide internal pull-ups. P1.0 and
P1.1 require external pull-ups. P1.0 and P1.1 also serve as the positive input (AIN0) and the
negative input (AIN1), respectively, of the on-chip precision analog comparator. The Port 1 out-
put buffers can sink 20 mA and can drive LED displays directly. When 1s are written to Port 1
pins, they can be used as inputs. When pins P1.2 to P1.7 are used as inputs and are externally
pulled low, they will source current (I
IL) because of the internal pull-ups.
Port 1 also receives code data during Flash programming and verification.
4.4
Port 3
Port 3 pins P3.0 to P3.5, P3.7 are seven bi-directional I/O pins with internal pull-ups.
P3.6 is hard-wired as an input to the output of the on-chip comparator and is not accessible as a
general-purpose I/O pin. The Port 3 output buffers can sink 20 mA. When 1s are written to Port
3 pins they are pulled high by the internal pull-ups and can be used as inputs. As inputs, Port 3
pins that are externally being pulled low will source current (I
IL) because of the pull-ups.
Port 3 also serves the functions of various special features of the AT89S2051/S4051 as listed
below:
Port 3 also receives some control signals for Flash programming and verification.
Port Pin
Alternate Functions
P1.5
MOSI (Master data output, slave data input pin for ISP channel)
P1.6
MISO (Master data input, slave data output pin for ISP channel)
P1.7
SCK (Master clock output, slave clock input pin for ISP channel)
Port Pin
Alternate Functions
P3.0
RXD (serial input port)
P3.1
TXD (serial output port)
P3.2
INT0 (external interrupt 0)
P3.3
INT1 (external interrupt 1)
P3.4
T0 (timer 0 external input)
P3.5
T1 (timer 1 external input)/ PWM output
相关PDF资料 |
PDF描述 |
|---|---|
| AT89S2051-24PI | 8-bit Microcontroller with 2K/4K Bytes Flash |
| AT89S2051-24SC | 8-bit Microcontroller with 2K/4K Bytes Flash |
| AT89S2051-24SI | 8-bit Microcontroller with 2K/4K Bytes Flash |
| AT89S2051-24PU | 8-bit Microcontroller with 2K/4K Bytes Flash |
| AT89S2051-24SU | 8-bit Microcontroller with 2K/4K Bytes Flash |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT89S2051-24PU | 功能描述:8位微控制器 -MCU 2K FLSH 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 |
| AT89S2051-24SU | 功能描述:8位微控制器 -MCU 2K FLASH 24MHZ SOIC 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 |
| AT89S2051W-16PI | 功能描述:8位微控制器 -MCU Microcontroller 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 |
| AT89S2051W-16SI | 功能描述:8位微控制器 -MCU Microcontroller 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 |
| AT89S4051-24PU | 功能描述:8位微控制器 -MCU 4K FLASH 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 |
发布紧急采购，3分钟左右您将得到回复。