- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382949 > EM6517 (Electronic Theatre Controls, Inc.) 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER PDF資料下載
參數(shù)資料
| 型號(hào)： | EM6517 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 4位微控制器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4位單片機(jī)的小型通用紅外遙控器 |
| 文件頁數(shù)： | 21/66頁 |
| 文件大?。?/td> | 762K |
| 代理商： | EM6517 |
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頁當(dāng)前第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頁第65頁第66頁
EM6517
FOR ENGINEERING ONLY
EM Microelectronic-Marin SA, 09/99, Rev. A/277
21
For Metal mask selection and available resistor values refer to chapter 19.1.3. (metal mask selection only valid
for Rom version)
Pull-down ON
: MPCPD[n] must be in place ,
AND
bit
NoPdPC
[n] must be ‘0’ .
Pull-down OFF
: MPCPD[n] is not in place,
OR
if MPCPD[n] is in place
NoPdPC
[n] = ‘1’ cuts off the pull-down.
OR
selecting
NchOpDPC
[n] = ‘1’ cuts off the pull-down.
Pull-up ON
:
MPCPU[n] must be in place,
AND
bit
NchOpDPC
[n] must be ‘1’ ,
AND
(bit
PCIOCntl =
‘0’ (input mode)
OR
if
PBIOCntl
=
‘1’ while
PCData
[n] = 1. )
Pull-up OFF
: MPCPU[n] is not in place,
OR
if MPCPU[n] is in place
NchOpDPC
[n] = ‘0’ cuts off the pull-up,
OR
if MPCPU[n] is in place and if
NchOpDPC
[n] = ‘1’ then
PCData
[n] = 0 cuts the pull-up.
Never pull-up and pull-down can be active at the same time.
For
POWER SAVING
one can switch off the port C pull resistors between two read phases. No cross current
flows in the input amplifier while the port C is not read. The recommended order is :
Switch on the pull resistor.
Allow sufficient time - RC constant - for the pull resistor to drive the line to either V
SS
or V
DD
.
Read the port C
Switch off the pull resistor
Minimum time with current on the pull resistor is 4 system clock periods, if the RC time constant is lower than 1
system clock period. Adding a NOP instruction before reading moves the number of periods with current in the
pull resistor to 6 and the maximum RC delay to 3 clock periods.
7.6.2 CMOS or Nch. Output
The port C outputs can be configured as either CMOS or Nch. open drain outputs. In CMOS both logic ‘1’ and
‘0’ are driven out on the terminal. In Nch. open drain only the logic ‘0’ is driven on the terminal, the logic ‘1’ value
is defined by the internal pull-up resistor (if implemented), or high impedance.
In CMOS output mode the pad can be driven high or low. Pull-ups and pull-downs are not active.
In CMOS input mode, if the corresponding metal option is in place (default), one can choose to have an internal
pull-down resistor by setting to “1“ the bit
NoPdPC
in
OPTPCandStr
register (default pull-down).
In N-Channel open drain mode, if the corresponding metal option is in place (default), one always has the pull-
up resistor active except if the port is in output mode and drives a "0" (RegPCCntl= "1", RegPBData[n]= "0") The
pull-down resistor is always off in Nch. open drain mode.
Pull-downs in CMOS input mode and weak pull-ups in Nch. open drain mode are port-wise configurable with the
register settings. The metal mask options to selectively connect or disconnect pull-up or pull-down resistors can
be different for each port C terminal.
Figure 16. CMOS or Nch. Open Drain Outputs
I / O
Term inal
PC[n]
M UX
Active Pull-up
for High State
PCData[n]
Tri-State O utput
Buffer : High
Im pedance for
Data = 1
I / O
Term inal
PC[n]
PCData[n]
Tri-State O utput
Buffer : closed
1
CM OS Output
Nch. Open Drain O utput
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| emg6 | General purpose (dual digital transistors) |
| EMG6 | General purpose (dual digital transistors) |
| EMX-303L1 | Magnetic transducer Buzzer |
| EMX-303L2 | Magnetic transducer Buzzer |
| EMX-303P2 | Magnetic transducer Buzzer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EM6517-240# | 制造商:DANAHER - FLUKE 功能描述:BNC TO BANTAM CABLE 制造商:Fluke Electronics 功能描述:BNC TO BANTAM CABLE |
| EM6520 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:MFP version of EM6620 Ultra Low Power Microcontroller 4x8 LCD Driver |
| EM6521 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4 bit Microcontroller |
| EM6522 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:This board contains the different MFP’s |
| EM65240 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Graphic STN LCD Drivers |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。