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89C51AC2-RLTUM PDF预览

89C51AC2-RLTUM

更新时间: 2024-01-16 15:15:28
品牌 Logo 应用领域
爱特美尔 - ATMEL 时钟ATM异步传输模式微控制器外围集成电路
页数 文件大小 规格书
121页 806K
描述
Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, PQFP44, VQFP-44

89C51AC2-RLTUM 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:QFP
包装说明:LQFP,针数:44
Reach Compliance Code:compliantECCN代码:3A991.A.2
HTS代码:8542.31.00.01风险等级:5.62
具有ADC:YES地址总线宽度:16
位大小:8最大时钟频率:40 MHz
DAC 通道:NODMA 通道:NO
外部数据总线宽度:8JESD-30 代码:S-PQFP-G44
JESD-609代码:e3长度:10 mm
I/O 线路数量:34端子数量:44
最高工作温度:85 °C最低工作温度:-40 °C
PWM 通道:YES封装主体材料:PLASTIC/EPOXY
封装代码:LQFP封装形状:SQUARE
封装形式:FLATPACK, LOW PROFILE峰值回流温度(摄氏度):260
认证状态:Not QualifiedROM可编程性:FLASH
座面最大高度:1.6 mm速度:40 MHz
最大供电电压:5.5 V最小供电电压:3 V
标称供电电压:5 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.8 mm端子位置:QUAD
处于峰值回流温度下的最长时间:40宽度:10 mm
uPs/uCs/外围集成电路类型:MICROCONTROLLERBase Number Matches:1

89C51AC2-RLTUM 数据手册

 浏览型号89C51AC2-RLTUM的Datasheet PDF文件第4页浏览型号89C51AC2-RLTUM的Datasheet PDF文件第5页浏览型号89C51AC2-RLTUM的Datasheet PDF文件第6页浏览型号89C51AC2-RLTUM的Datasheet PDF文件第8页浏览型号89C51AC2-RLTUM的Datasheet PDF文件第9页浏览型号89C51AC2-RLTUM的Datasheet PDF文件第10页 
A/T89C51AC2  
Figure 2. Port 0 Structure  
ADDRESS LOW/  
DATA  
CONTROL  
VDD  
(2)  
READ  
LATCH  
P0.x (1)  
1
0
INTERNAL  
BUS  
D
Q
P0.X  
LATCH  
WRITE  
TO  
LATCH  
READ  
PIN  
Notes: 1. Port 0 is precluded from use as general-purpose I/O Ports when used as  
address/data bus drivers.  
2. Port 0 internal strong pull-ups assist the logic-one output for memory bus cycles only.  
Except for these bus cycles, the pull-up FET is off, Port 0 outputs are open-drain.  
Figure 3. Port 2 Structure  
ADDRESS HIGH/  
VDD  
CONTROL  
INTERNAL  
PULL-UP (2)  
READ  
LATCH  
P2.x (1)  
1
0
INTERNAL  
BUS  
D
Q
P2.X  
LATCH  
WRITE  
TO  
LATCH  
READ  
PIN  
Notes: 1. Port 2 is precluded from use as general-purpose I/O Ports when as address/data bus  
drivers.  
2. Port 2 internal strong pull-ups FET (P1 in FiGURE) assist the logic-one output for  
memory bus cycle.  
When Port 0 and Port 2 are used for an external memory cycle, an internal control signal  
switches the output-driver input from the latch output to the internal address/data line.  
Read-Modify-Write  
Instructions  
Some instructions read the latch data rather than the pin data. The latch based instruc-  
tions read the data, modify the data and then rewrite the latch. These are called "Read-  
Modify-Write" instructions. Below is a complete list of these special instructions (see  
Table ). When the destination operand is a Port or a Port bit, these instructions read the  
latch rather than the pin:  
7
4127G–8051–05/06  
 

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