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参数资料
型号： AT89C51ID2-SLRUM
厂商： Atmel
文件页数： 13/157页
文件大小： 0K
描述： IC 8051 MCU 64K FLASH 44-PLCC
产品培训模块： MCU Product Line Introduction
标准包装： 500
系列： 89C
核心处理器： 8051
芯体尺寸： 8-位
速度： 60MHz
连通性： I²C，SPI，UART/USART
外围设备： POR，PWM，WDT
输入/输出数： 34
程序存储器容量： 64KB（64K x 8）
程序存储器类型： 闪存
EEPROM 大小： 2K x 8
RAM 容量： 2K x 8
电压 - 电源 (Vcc/Vdd)： 2.7 V ~ 5.5 V
振荡器型： 外部
工作温度： -40°C ~ 85°C
封装/外壳： 44-LCC（J 形引线）
包装： 标准包装
其它名称： AT89C51ID2-SLRUMDKR
11
AT89C51ID2
4289C–8051–11/05
Table 15. Pin Description
Mnemonic
Pin Number
Type
Name and Function
PLCC44
VQFP44
V
SS
22
16
I
Ground: 0V reference
V
CC
44
38
I
Power Supply: This is the power supply voltage for normal, idle and power-down opera-
tion
P0.0 - P0.7
43 - 36
37 - 30
I/O
Port 0: Port 0 is an open-drain, bidirectional 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
V
SS 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 verifica-
tion during which P0 outputs the code bytes.
P1.0 - P1.7
2 - 9
40 - 44
1 - 3
I/O
Port 1: Port 1 is an 8-bit bidirectional 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 AT89C51ID2 Port 1 include:
2
40
I/O
P1.0: Input/Output
I/O
T2 (P1.0): Timer/Counter 2 external count input/Clockout
I
XTALB1 (P1.0): Sub Clock input to the inverting oscillator amplifier
3
41
I/O
P1.1: Input/Output
I
T2EX: Timer/Counter 2 Reload/Capture/Direction Control
I
SS: SPI Slave Select
4
42
I/O
P1.2: Input/Output
I
ECI: External Clock for the PCA
5
43
I/O
P1.3: Input/Output
I/O
CEX0: Capture/Compare External I/O for PCA module 0
6
44
I/O
P1.4: Input/Output
I/O
CEX1: Capture/Compare External I/O for PCA module 1
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.
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
9
3
I/O
P1.7: Input/Output:
I/O
CEX4: Capture/Compare External I/O for PCA module 4
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AT89C51ID2-SLSUM 功能描述:8位微控制器 -MCU 64K FLASH 32KHz 3.5-5V 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
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