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ETC - Dual Differential Line Drivers / ReceiversWith 3 State Outputs

Numéro de référence HD29051
Description Dual Differential Line Drivers / ReceiversWith 3 State Outputs
Fabricant ETC 
Logo ETC 





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HD29051 fiche technique
HD29051
Dual Differential Line Drivers / ReceiversWith 3 State Outputs
The HD29051 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
Driver
Built in current restriction when short circuit
Power up / down protection.
High output current
IOH = –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
D1
Enable
4
R2Y 5
R2A 6
R2B 7
GND 8
16 VCC
15 D1A
14 D1Y
13 D1Z
12 D2
Enable
11 D2Z
10 D2Y
9 D2A
(Top View)
Function Table
Drivers
Input A
Enable Output Y
LH
L
HH
H
XL
Z
Output Z
H
L
Z
Receivers
Differential Input A – B
VID 0.2 V
–0.2 V < VID < 0.2 V
VID –0.2 V
H : High level
L : Low level
Z : High impedance
X : Immaterial
? : Irrelevant
Output Y
H
?
L

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