Integrated circuits, Transistor, Semiconductors Free Datasheet Search and Download Site


ML145027EP Просмотр технического описания (PDF) - Unspecified

Номер в каталогеML145027EP ETC
Unspecified 
Компоненты ОписаниеEncoder and Decoder Pairs CMOS


ML145027EP Datasheet PDF : 19 Pages
First Prev 11 12 13 14 15 16 17 18 19
ML145026, ML145027, ML145028
LANSDALE Semiconductor, Inc.
VDD
A1
5
A2
TRINARY
ADDRESSES
A3
A4
A5
D6
4–BIT
D7
BINARY
DATA
D8
D9
TE VDD
0.1 µF
14
1
16
15 Dout
2
3
4
5
6
ML 145026 13 RTC
7
9
12 CTC
10
11
RS
8
VDD
0.1 µF
VDD
A1
Din 9
6
16
1
A2
2
A3
R1
3
4
A4
7 ML145027 5
A5
C1
15
14
D6
D7
10
13 D8
12 D9
R 2 C2
11 VT
8
1
fosc = 2.3 RT CCTC
R1C1 = 3.95 RT CCTC
R2C2 = 77 RT CCT C
CT C= CT C + Clayout + 12 pF
100 pFCT C 15 µF
RT C 10 k; RS 2 RT C
R1 10 k
C1 400 pF
R2 100 k
C2 700 pF
REPEAT OF ABOVE
REPEAT OF ABOVE
Example R/C Values (All Resistors and Capacitors are ± 5%)
(CT C= CT C + 20 pF )
fos c (kHz) RT C
CT C
RS
R1
C1
R2
C2
362
181
88.7
42.6
21.5
8.53
1.71
10 k
10 k
10 k
10 k
10 k
10 k
50 k
120 pF
240 pF
490 pF
1020 pF
2020 pF
5100 pF
5100 pF
20 k
20 k
20 k
20 k
20 k
20 k
100 k
10 k
10 k
10 k
10 k
10 k
10 k
50 k
470 pF
910 pF
2000 pF
3900 pF
8200 pF
0.02 µF
0.02 µF
100 k
100 k
100 k
100 k
100 k
200 k
200 k
910 pF
1800 pF
3900 pF
7500 pF
0 . 0 1 5 µF
0.02 µF
0.1 µF
F igure 17. Typic al A pplic ation
5
TRINARY
ADDRESSES
Page 14 of 19
www.lansdale.com
Issue 0
Direct download click here
HOME 'ML145027EP' Search

[LANSDALE]

Legacy Device:Motorola/Freescale MC145026, MC145027, MC145028
These devices are designed to be used as encoder/decoder pairs in remote control applications.
The ML145026 encodes nine lines of information and serially sends this information upon receipt of a transmit enable (TE) signal. The nine lines may be encoded with trinary data (low, high, or open) or binary data (low or high). The words are transmitted twice per encoding sequence to
increase security.
The ML145027 decoder receives the serial stream and interprets five of the trinary digits as an address code. Thus, 243 addresses are possible. If binary data is used at the encoder, 32 addresses are possible. The remaining serial information is interpreted as four bits of binary data. The valid transmission (VT) output goes high on the ML145027 when two conditions are met. First, two addresses must be consecutively received (in one encoding sequence) which both match the local address. Second, the 4 bits of data must match the last valid data received. The active VT indicates that the information at the Data output pins has been updated.
The ML145028 decoder treats all nine trinary digits as an address which allows 19,683 codes. If binary data is encoded, 512 codes are possible. The VT output goes high on the ML145028 when two addresses are consecutively received (in one encoding sequence) which both match the local
address.

• Operating Temperature Range: TA= – 40 to + 85°C
• Very–Low Standby Current for the Encoder: 300 nA Maximum @ 25°C
• Interfaces with RF, Ultrasonic, or Infrared Modulators and Demodulators
• RC Oscillator, No Crystal Required
• High External Component Tolerance; Can Use ± 5% Components
• Internal Power–On Reset Forces All Decoder Outputs Low
• Operating Voltage Range: ML145026 = 2.5 to 18 V*
                                     ML145027, ML145028 = 4.5 to 18 V
• For Infrared Applications, See Application Note AN1016/D

Share Link : 

English   한국어     日本語     简体中文     español
@ 2015 - 2018  [ Home  ] [ Privacy Policy ] [ Request Datasheet  ] [ Contact Us ]