công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

MC14497P bảng dữ liệu(PDF) 4 Page - Motorola, Inc

tên linh kiện MC14497P
Giải thích chi tiết về linh kiện  PCM REMOTE CONTROL TRANSMITTER
Download  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  MOTOROLA [Motorola, Inc]
Trang chủ  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC14497P bảng dữ liệu(HTML) 4 Page - Motorola, Inc

  MC14497P Datasheet HTML 1Page - Motorola, Inc MC14497P Datasheet HTML 2Page - Motorola, Inc MC14497P Datasheet HTML 3Page - Motorola, Inc MC14497P Datasheet HTML 4Page - Motorola, Inc MC14497P Datasheet HTML 5Page - Motorola, Inc MC14497P Datasheet HTML 6Page - Motorola, Inc MC14497P Datasheet HTML 7Page - Motorola, Inc MC14497P Datasheet HTML 8Page - Motorola, Inc  
Zoom Inzoom in Zoom Outzoom out
 4 / 8 page
background image
MC14497
MOTOROLA
4
PIN DESCRIPTIONS
E1 – E8
Row Inputs (Pins 1, 2, 10, 11, 14, 15, 16, 17)
Under idle conditions, these inputs are held high by inter-
nal pull–up resistors. As soon as a key is pressed, a logical 0
on that particular line signals to the circuit that a key has
been selected. After a delay of 20 ms, the internal register is
loaded with the code word for the key selected.
E9
Row Input (Pin 3)
This is a special programming input and when connected
to the appropriate scanner output via a diode, it will modify
the transmitted output according to Table NO TAG.
In Table NO TAG, the figures in brackets (FK1, etc.) refer
to the switches shown in the Block Diagram and Figure 3. If
only one option is required, the diode may be omitted. The
connections shown in Table NO TAG may be made in any
combination.
Although E9 is a row input, forcing this line low will not acti-
vate the circuit.
A1 – A4
Scanner Outputs (Pins 4 – 7)
Under idle conditions, these outputs are held low, logical 0.
When a key is pressed, the circuit is activated and the oscil-
lator will start and release the outputs (see Figure 5).
OSCin, OSCout
Oscillator Input and Oscillator Output (Pins 12, 13)
These pins are designed to operate with a 500 kHz ceram-
ic resonator or a tune LC circuit. It is important that a ceramic
resonator and not a filter be used here, as the oscillator fre-
quency cannot be guaranteed if a ceramic filter is used.
SIGNAL OUT
Signal Output (Pin 8)
This output provides the modulating signal ready to drive
the modulation amplifier. If required, the transmitter can be
used as a keyboard encoder for direct use with a receiver. In
this case, the AM option is selected, the output inverted, and
fed directly to the receiver’s signal input pin.
Figure 3. 64–Key Keyboard
E1a
E1
E2a
E2
E3a
E3
E4a
E4
E5a
E5
E6a
E6
E7a
E7
E8a
E8
17
2
1
16
15
14
10
11
9
18
VSS
VDD
3
13
12
A1
7
A2
6
A3
5
A4
4
FK2
FK1
E9
C1
C2
NOTE: Maximum key contact
resistance = 1 k
Ω.
Figure 4. Transmitted Waveforms and Timing (Not Drawn to Scale)
START BIT
A
B
C
D
E
F
f2
f3
f3
f2
f3
f2
f3
f2
f3
f1
f1
f1
f1
f1
f1
INSTRUCTION
FSK
AM
ONE WORD
DEBOUNCE
KEY WORD
20 ms
9 ms
99 ms


Số phần tương tự - MC14497P

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
ON Semiconductor
MC14490 ONSEMI-MC14490 Datasheet
234Kb / 12P
   Hex Contact Bounce Eliminator
May, 2000 ??Rev. 4
MC14490 ONSEMI-MC14490 Datasheet
126Kb / 11P
   Hex Contact Bounce Eliminator
June, 2006 ??Rev. 7
MC14490DW ONSEMI-MC14490DW Datasheet
234Kb / 12P
   Hex Contact Bounce Eliminator
May, 2000 ??Rev. 4
MC14490DW ONSEMI-MC14490DW Datasheet
126Kb / 11P
   Hex Contact Bounce Eliminator
June, 2006 ??Rev. 7
MC14490DWG ONSEMI-MC14490DWG Datasheet
126Kb / 11P
   Hex Contact Bounce Eliminator
June, 2006 ??Rev. 7
More results

Mô tả tương tự - MC14497P

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
STMicroelectronics
M708 STMICROELECTRONICS-M708 Datasheet
345Kb / 9P
   PCM REMOTE CONTROL TRANSMITTER
logo
Motorola, Inc
MC14422 MOTOROLA-MC14422 Datasheet
220Kb / 6P
   REMOTE CONTROL TRANSMITTER
logo
Princeton Technology Co...
PT2462 PTC-PT2462_10 Datasheet
448Kb / 12P
   Remote Control Transmitter
logo
NXP Semiconductors
SAA3004 PHILIPS-SAA3004 Datasheet
103Kb / 16P
   Remote control transmitter
August 1982
logo
Zarlink Semiconductor I...
MV500 ZARLINK-MV500 Datasheet
357Kb / 4P
   REMOTE CONTROL TRANSMITTER
logo
List of Unclassifed Man...
SL490B ETC-SL490B Datasheet
136Kb / 5P
   REMOTE CONTROL TRANSMITTER
logo
Princeton Technology Co...
PT2243 PTC-PT2243 Datasheet
344Kb / 3P
   Remote Control Transmitter
logo
STMicroelectronics
M3004LAB1 STMICROELECTRONICS-M3004LAB1 Datasheet
105Kb / 10P
   REMOTE CONTROL TRANSMITTER
M3005LAB1 STMICROELECTRONICS-M3005LAB1 Datasheet
101Kb / 10P
   REMOTE CONTROL TRANSMITTER
M3004LD STMICROELECTRONICS-M3004LD Datasheet
336Kb / 14P
   REMOTE CONTROL TRANSMITTER
More results


Html Pages

1 2 3 4 5 6 7 8


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com