- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄365960 > TS80C31X2-MLCR (ATMEL CORP) 8-bit CMOS Microcontroller ROMless PDF資料下載
參數(shù)資料
| 型號(hào)： | TS80C31X2-MLCR |
| 廠商： | ATMEL CORP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 8-bit CMOS Microcontroller ROMless |
| 中文描述： | 8-BIT, 40 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁(yè)數(shù)： | 6/40頁(yè) |
| 文件大小： | 484K |
| 代理商： | TS80C31X2-MLCR |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)當(dāng)前第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)
6
Rev. A - Mar. 19, 1999
Preliminary
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:
G
Divide frequency crystals by 2 (cheaper crystals) while keeping same CPU power.
G
Save power consumption while keeping same CPU power (oscillator power saving).
G
Save power consumption by dividing dynamically operating frequency by 2 in operating and idle modes.
G
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.
Figure 1. Clock Generation Diagram
XTAL1
2
CKCON reg
X2
state machine: 6 clock cycles.
CPU control
F
OSC
F
XTAL
0
1
XTAL1:2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TS80C31X2-VCAB | 8-bit CMOS Microcontroller ROMless |
| TS80C31X2-MCBD | 8-bit CMOS Microcontroller ROMless |
| TS80C31X2-MCBR | 8-bit CMOS Microcontroller ROMless |
| TS80C31X2-MCCB | 8-bit CMOS Microcontroller ROMless |
| TS80C31X2-MCCD | 8-bit CMOS Microcontroller ROMless |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS80C31X2-MLEB | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless |
| TS80C31X2-MLED | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless |
| TS80C31X2-MLER | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless |
| TS80C31X2-VCA | 功能描述:IC MCU 8BIT 40/30MHZ 40-DIP RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:80C 標(biāo)準(zhǔn)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(shè)備:POR，WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB（32K x 8） 程序存儲(chǔ)器類(lèi)型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:0°C ~ 70°C 封裝/外殼:40-DIP（0.600"，15.24mm） 包裝:管件 |
| TS80C31X2-VCAB | 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。