參數資料
型號： AT80C51RD2-RLTUM
廠商： Atmel
文件頁數： 34/81頁
文件大?。?/td> 0K
描述： IC 8051 MCU 5V SPI 20MHZ 44-VQFP
標準包裝： 800
系列： 80C
核心處理器： 8051
芯體尺寸： 8-位
速度： 40MHz
連通性： UART/USART
外圍設備： POR，PWM，WDT
輸入/輸出數： 32
程序存儲器類型： ROMless
RAM 容量： 1K x 8
電壓 - 電源 (Vcc/Vdd)： 4.5 V ~ 5.5 V
振蕩器型： 內部
工作溫度： -40°C ~ 85°C
封裝/外殼： 44-LQFP
包裝： 托盤
4
4113D–8051–01/09
AT80C51RD2
Table 3-1.
Pin Description
Mnemonic
Pin Number
Type
Name and Function
DIL
PLCC44
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
CC or VSS 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 EPROM 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 T89C51RB2/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
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
7
8
2
I/O
P1.6: Input/Output
I/O
CEX3: Capture/Compare External I/O for PCA module 3
8
9
3
I/O
P1.7: Input/Output:
I/O
CEX4: Capture/Compare External I/O for PCA module 4
XTAL1
19
21
15
I
Crystal 1: Input to the inverting oscillator amplifier and input to the internal clock
generator circuits.
XTAL2
18
20
14
O
Crystal 2: Output from the inverting oscillator amplifier
相關PDF資料
PDF描述
AT89S52-24JU IC MCU 8K FLASH 24MHZ 44-PLCC
AT89S52-24PU IC MCU 8K FLASH 24MHZ 40-DIP
200875-1 CONN FIXED JACKSCREW FMLE W/HDWR
202174-4 CONN GUIDE SKT CORNER 104CF POS
202173-1 CONN GUIDE PIN CORNER 104CF POS
相關代理商/技術參數
參數描述
AT80C51RD2-SLRUM 功能描述:8位微控制器 -MCU MCU 8-Bit HI Perform ROMless 3-5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT
AT80C51RD2-SLSCM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Microcontroller
AT80C51RD2-SLSIL 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller
AT80C51RD2-SLSIM 功能描述:IC MCU 8051 5V SPI 20MHZ 44-PLCC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:80C 標準包裝:9 系列:87C 核心處理器:8051 芯體尺寸:8-位 速度:40/20MHz 連通性:UART/USART 外圍設備:POR，WDT 輸入/輸出數:32 程序存儲器容量:32KB（32K x 8） 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數據轉換器:- 振蕩器型:內部 工作溫度:0°C ~ 70°C 封裝/外殼:40-DIP（0.600"，15.24mm） 包裝:管件
AT80C51RD2-SLSUL 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數量 廠商 批號 封裝
添加更多采購

我的聯系方式

*
*
*