HD29412
Dual Differential Line Drivers With 3 State Output
ADE-205-581 (Z) 1st. Edition Dec. 2000
Description
The HD29...
HD29412
Dual Differential Line Drivers With 3 State Output
ADE-205-581 (Z) 1st. Edition Dec. 2000
Description
The HD29412 features dual differential line drivers with three state outputs designed to satisfy the requirements of EIA-422. Each driver has an output control is low, the associated outputs are in a high impedance state. This permits many deviced to be connected together on the same transmission line for party line applications.
Function Table
Input
Output
AB C D Y Z
HH H H H L
HL H H L H
LH H H L H
LL H H L H
XX L X Z Z
XX X L Z Z
H : High level L : Low level X : Irrelevant Z : High impedance
HD29412
Pin Arrangement
NC 1 1Z 2 1Y 3 1A 4 1B 5 1C 6 GND 7
14 VCC 13 2Z 12 2Y 11 2B 10 2A 9 2C 8D
(Top view)
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply
Voltage
VCC*1
7
V
Input
Voltage
VIN 5.5
V
Power Dissipation Operating Temperature
PT Topr
1150 0 to + 70
mW °C
Storage Temperature
Tstg
-65 to + 150
°C
Notes: 1. The values is defined...