Dual Differential Line Drivers/Receivers
HD29050
Dual Differential Line Drivers/ReceiversWith 3 State Outputs
ADE-205-034A (Z) 2nd. Edition Mar. 1993
Description...
Description
HD29050
Dual Differential Line Drivers/ReceiversWith 3 State Outputs
ADE-205-034A (Z) 2nd. Edition Mar. 1993
Description
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
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.
HD29050
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 L H X
Enable H H L
Output Y L H Z
H : High level L : Low level Z : High impedance X : Immaterial ? : Irrelevant
Output Z H L Z...
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