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HD29051

ETC
Part Number HD29051
Manufacturer ETC
Description Dual Differential Line Drivers / ReceiversWith 3 State Outputs
Published Mar 23, 2005
Detailed Description HD29051 Dual Differential Line Drivers / ReceiversWith 3 State Outputs The HD29051 features differential line drivers / ...
Datasheet PDF File HD29051 PDF File

HD29051
HD29051

Overview
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.
Pin Arrangement R1B R1A R1Y 1 2 3 16 VCC 15 D1A 14 D1Y 13 D1Z 12 D2 Enable 11 D2Z 10 D2Y 9 D2A D1 4 Enable R2Y 5 6 7 8 (Top View) 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.
R2A R2B GND Function Table Drivers Input A L H X Enable H H L Output Y L H 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 L Z X ? : : : : : High level Low level High impedance Immaterial Irrelevant Output Y H ? L HD29051 Absolute Maximum Ratings Item Supply Voltage *1 *3 *2 *3 HD29051 Symbol VCC VIN VID IO VIE VIN *4 *5 Ratings 7 ±25 ±25 50 5.
5 5.
5 –1.
0 to 7.
0 0 to 70 –65 to 150 Unit V V V mA V V V °C °C Input Voltage A , B Output Current Input Voltage *3 Differential Input Voltage Enable Input Voltage *4 Output Applied Voltage VO Topr Tstg Operating Temperature Range Storage Temperature Range Notes: 1.
All voltage values except for differential input voltage are with respect to network ground terminal.
2.
Differential input voltage is measured at the noninverting input with respect to the corresponding inverting input.
3.
Only receiver 4.
Only driver 5.
Z state 6.
The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time.
Recommended Operating Conditions Item Supply Voltage In Phase Input Voltage Enable Input Voltage Input Voltage *2 *1 Symbol VCC VIC VID VIE VIN To...


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