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HD29050 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

Part No. HD29050
Description  Dual Differential Line Drivers / ReceiversWith 3 State Outputs
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Maker  ETC [List of Unclassifed Manufacturers]
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HD29050 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers

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HD29050
Dual Differential Line Drivers / ReceiversWith 3 State Outputs
The HD29050 features differential line drivers /
receivers with three state output designed to meet
the spec of EIA RS – 422A and 423A. Each device
has two drivers / receivers in a 16 pin package.
The device becomes in enable state when active
high for a driver and active low for a receiver.
Features
Function Table
Pin Arrangement
(Top View)
• Built in current restriction when short circuit
• Power up / down protection.
• High output current
I OH = –40 mA
IOL = 40 mA
Driver
• Input hysteresis (Typ. 50 mV)
• In phase input voltage ±200 mV of input
sensitivity in the range –7 to +12 V.
Receiver
H
L
X
H
L
Drivers
Input A
Enable
Output Y
Output Z
L
HH
L
H
ZZ
High level
Low level
High impedance
Immaterial
Irrelevant
H
L
Z
X
?
:
:
:
:
:
VID
≥ 0.2 V
Receivers
Differential Input A – B
Enable
Output Y
–0.2 V < VID < 0.2 V
VID
≤ –0.2 V
X
L
H
?
L
L
H
L
Z
VCC
1
2
3
4
5
6
7
8
R1B
9
10
11
12
13
14
15
16
R
Enable
R1A
R1Y
R2Y
R2A
R2B
GND
D1A
D1Y
D1Z
D2Z
D2Y
D2A
D
Enable


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