- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3859 > AT89C2051-24PC (Atmel)IC MICRO CTRL 24MHZ 20DIP PDF資料下載
參數(shù)資料
| 型號： | AT89C2051-24PC |
| 廠商： | Atmel |
| 文件頁數(shù)： | 13/19頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MICRO CTRL 24MHZ 20DIP |
| 標(biāo)準(zhǔn)包裝： | 18 |
| 系列： | 89C |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 24MHz |
| 連通性： | UART/USART |
| 外圍設(shè)備： | LED |
| 輸入/輸出數(shù)： | 15 |
| 程序存儲器容量： | 2KB（2K x 8） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 128 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 4 V ~ 6 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 20-DIP（0.300"，7.62mm） |
| 包裝： | 管件 |
3
0368H–MICRO–6/08
AT89C2051
4.
Pin Description
4.1
VCC
Supply voltage.
4.2
GND
Ground.
4.3
Port 1
The 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 gen-
eral-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 AT89C2051 as listed below:
Port 3 also receives some control signals for Flash programming and verification.
4.5
RST
Reset input. All I/O pins are reset to 1s as soon as RST goes high. Holding the RST pin high for
two machine cycles while the oscillator is running resets the device.
Each machine cycle takes 12 oscillator or clock cycles.
4.6
XTAL1
Input to the inverting oscillator amplifier and input to the internal clock operating circuit.
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)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT87F51-24PC | IC MICRO CTRL 24MHZ 40DIP |
| AT87F51-24JI | IC MICRO CTRL 24MHZ 44PLCC |
| AT87F51-24JC | IC MICRO CTRL 24MHZ 44PLCC |
| AT87F51-24AI | IC MICRO CTRL 24MHZ 44TQFP |
| ATTINY28V-1PI | IC AVR MCU 2K 1.2MHZ 1.8V 28DIP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT89C2051-24PI | 功能描述:8位微控制器 -MCU 20 PINS UART 2K - FLASH - 24MHZ RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| AT89C2051-24PU | 功能描述:8位微控制器 -MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| AT89C2051-24PU SL383 | 制造商:Atmel Corporation 功能描述:8051 MCU, 20 PINS, UART, 2K FL |
| AT89C2051-24SC | 功能描述:8位微控制器 -MCU 20 PINS UART 2K - FLASH - 24MHZ RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| AT89C2051-24SC SL383 | 制造商:Atmel Corporation 功能描述:MCU 8-bit AT89 80C51 CISC 2KB Flash 5V 20-Pin SOIC T/R |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。