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TS80C31X2-MLAR PDF预览

TS80C31X2-MLAR

更新时间: 2024-02-17 21:46:03
品牌 Logo 应用领域
爱特美尔 - ATMEL 微控制器
页数 文件大小 规格书
42页 565K
描述
8-bit CMOS Microcontroller ROMless

TS80C31X2-MLAR 技术参数

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:44Reach Compliance Code:compliant
ECCN代码:3A991.A.2HTS代码:8542.31.00.01
风险等级:5.65Is Samacsys:N
具有ADC:NO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:32端子数量:44
最高工作温度:70 °C最低工作温度:
PWM 通道:NO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 Qualified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:4.5 V标称供电电压:5 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子面层:MATTE TIN
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 mmuPs/uCs/外围集成电路类型:MICROCONTROLLER
Base Number Matches:1

TS80C31X2-MLAR 数据手册

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TS80C31X2  
6. TS80C31X2 Enhanced Features  
In comparison to the original 80C31, the TS80C31X2 implements some new features, which are:  
The X2 option.  
The Dual Data Pointer.  
The 4 level interrupt priority system.  
The power-off flag.  
The ONCE mode.  
Enhanced UART  
6.1 X2 Feature  
The TS80C31X2 core needs only 6 clock periods per machine cycle. This feature called ”X2” provides the following  
advantages:  
Divide frequency crystals by 2 (cheaper crystals) while keeping same CPU power.  
Save power consumption while keeping same CPU power (oscillator power saving).  
Save power consumption by dividing dynamically operating frequency by 2 in operating and idle modes.  
Increase CPU power by 2 while keeping same crystal frequency.  
In order to keep the original C51 compatibility, a divider by 2 is inserted between the XTAL1 signal and the main  
clock input of the core (phase generator). This divider may be disabled by software.  
6.1.1 Description  
The clock for the whole circuit and peripheral is first divided by two before being used by the CPU core and  
peripherals. This allows any cyclic ratio to be accepted on XTAL1 input. In X2 mode, as this divider is bypassed,  
the signals on XTAL1 must have a cyclic ratio between 40 to 60%. Figure 1. shows the clock generation block  
diagram. X2 bit is validated on XTAL1÷2 rising edge to avoid glitches when switching from X2 to STD mode.  
Figure 2. shows the mode switching waveforms.  
XTAL1:2  
2
state machine: 6 clock cycles.  
CPU control  
XTAL1  
0
1
FXTAL  
FOSC  
X2  
CKCON reg  
Figure 1. Clock Generation Diagram  
6
Rev. C - 15 January, 2001  
 

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