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ML14469 Просмотр технического описания (PDF) - LANSDALE Semiconductor Inc.

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ML14469 Addressable Asynchronous Receiver/Transmitter LANSDALE
LANSDALE Semiconductor Inc. LANSDALE
ML14469 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
ML14469
V+
1k
LANSDALE Semiconductor, Inc.
10 k
TRO
10 k
10 k
10 k
RI TRO
VSS
MC6850
ACIA
OR
UART
MASTER
STATION
RI TRO
VDD
ID7
VSS
RI TRO
VDD
VSS
ID7
RI TRO
VDD
VSS
ID7
S7 ML14469
A0,ID0 0
A1,ID1
A2,ID2
A3,ID3
A4,ID4
A5,ID5
A6,ID6
CS
SEND
ADDRESS
0000000
REMOTE ML14469
STATIONS
ADDRESS
0000001
S7 ML14469
1
A1,ID1
A2,ID2
A3,ID3
A4,ID4
A5,ID5
A6,ID6
CS
SEND
S7 ML14469
127
ADDRESS
1111111
CS
SEND
NOTE: For simplex operation the ID7 must be tied high, S7 must be tied
low, and the 7–bit ID must be the same as the 7–bit address (or set
to some unused address) to prevent erroneous responses.
Figure 6. Single Line, Simplex Data Transmission
V+
VDD
1k
1k
10 k
TRO
RI TRO
VSS
MC6850
ACIA
OR
UART
MASTER
STATION
Page 7 of 10
10 k
10 k
10 k
RI TRO
VDD
VSS
ADDRESS ML14469
0000000 A0 0
A1
A2
A3
A4
A5
VAP
A6
SEND
RI TRO
VDD
VSS
ADDRESS
0000001
ML14469
1
A1
A2
A3
A4
A5
VAP
A6
SEND
RI TRO
VDD
VSS
ADDRESS
1111111
ML14469
127
VAP
SEND
REMOTE ML14469 STATIONS
Figure 7. Double Line, Full Duplex Data Transmission
www.lansdale.com
Issue 0
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