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ETC - HD29050

Numéro de référence 29050H
Description HD29050
Fabricant ETC 
Logo ETC 





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29050H fiche technique
HD29050www.DataSheet4U.com
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
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Driver
Built in current restriction when short circuit
Power up / down protection.
High output current
I OH = –40 mA
IOL = 40 mA
Receiver
Input hysteresis (Typ. 50 mV)
In phase input voltage ±200 mV of input
sensitivity in the range –7 to +12 V.
Pin Arrangement
R1B 1
R1A 2
R1Y 3
R
Enable
4
R2Y 5
R2A 6
R2B 7
GND 8
16 VCC
15 D1A
14 D1Y
13 D1Z
12 D
Enable
11 D2Z
10 D2Y
9 D2A
(Top View)
Function Table
Drivers
Input A
Enable
Output Y
LHL
HH
H
XL
Z
Output Z
H
L
Z
Receivers
Differential Input A – B
VID 0.2 V
Enable
L
–0.2 V < VID < 0.2 V
VID –0.2 V
L
L
XH
H : High level
L : Low level
Z : High impedance
X : Immaterial
? : Irrelevant
Output Y
H
?
L
Z
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