- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄25623 > MP80C51C-16D (ATMEL CORP) 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP40 PDF資料下載
參數(shù)資料
| 型號： | MP80C51C-16D |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | PLASTIC, DIP-40 |
| 文件頁數(shù)： | 65/109頁 |
| 文件大小： | 10824K |
| 代理商： | MP80C51C-16D |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁當前第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁
44
ATtiny20 [DATASHEET]
8235E–AVR–03/2013
The pull-up resistor is activated, if the PUExn is written logic one. To switch the pull-up resistor off, PUExn has to be
written logic zero.
Table 10-1 summarizes the control signals for the pin value.
Table 10-1. Port Pin Configurations
Port pins are tri-stated when a reset condition becomes active, even when no clocks are running.
10.2.2 Toggling the Pin
Writing a logic one to PINxn toggles the value of PORTxn, independent on the value of DDRxn. Note that the SBI
instruction can be used to toggle one single bit in a port.
10.2.3 Break-Before-Make Switching
In Break-Before-Make mode, switching the DDRxn bit from input to output introduces an immediate tri-state period
lasting one system clock cycle, as indicated in Figure 10-3. For example, if the system clock is 4 MHz and the DDRxn is
written to make an output, an immediate tri-state period of 250 ns is introduced before the value of PORTxn is seen on
the port pin.
To avoid glitches it is recommended that the maximum DDRxn toggle frequency is two system clock cycles. The Break-
Before-Make mode applies to the entire port and it is activated by the BBMx bit. For more details, see “PORTCR – Port
When switching the DDRxn bit from output to input no immediate tri-state period is introduced.
DDxn
PORTxn
PUExn
I/O
Pull-up
Comment
0
X
0
Input
No
Tri-state (hi-Z)
0
X
1
Input
Yes
Sources current if pulled low externally
1
0
Output
No
Output low (sink)
1
0
1
Output
Yes
NOT RECOMMENDED.
Output low (sink) and internal pull-up active. Sources
current through the internal pull-up resistor and consumes
power constantly
1
0
Output
No
Output high (source)
1
Output
Yes
Output high (source) and internal pull-up active
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MQ80C52CXXX-12SB | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44 |
| MD80C32XXX-12/883 | 8-BIT, 12 MHz, MICROCONTROLLER, CDIP40 |
| MT80C51C-12R | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP44 |
| MT80C51C-20R | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44 |
| MF280C51-36R | 8-BIT, MROM, 36 MHz, MICROCONTROLLER, PQFP44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MP81 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:BRIDGE RECTIFIERS |
| MP810 | 制造商:GOOD-ARK 制造商全稱:GOOD-ARK Electronics 功能描述:SILICON BRIDGE RECTIFIERS |
| MP-810 | 制造商:JAMECO BENCHPRO 功能描述:4-Piece Plier/Cutter/Screwdrivers Set |
| MP8100 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:Precision High-Side Current-Sense Amplifier |
| MP8100DS | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:Precision High-Side Current-Sense Amplifier |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。