DS36950
DS36950 is Quad Differential Bus Transceiver manufactured by National Semiconductor.
Description
The DS36950 is a low power, space-saving quad EIA-485 differential bus transceiver especially suited for high speed, parallel, multipoint, puter I/O bus applications. A pact 20-pin surface mount PLCC package provides high transceiver integration and a very small PC board footprint. Timing uncertainty across an interface using multiple devices, a typical problem in a parallel interface, is specified
- minimum and maximum propagation delay times are guaranteed. Six devices can implement a plete IPI master or slave interface. Three transceivers in a package are pinned out for connection to a parallel databus. The fourth transceiver, with the flexibility provided by its individual enables, can serve as a control bus transceiver.
Features n n n n n Pinout for IPI interface pact 20-pin PLCC package Meets EIA-485 standard for multipoint bus transmission Greater than 60 m A source/sink Thermal Shutdown Protection
Pinout and Logic Diagram
DS010602-1
Order Number DS36950 See NS Package Number V20A
DS010602-2
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© 1999 National Semiconductor Corporation
DS010602
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Control Input Voltage Driver Input Voltage Driver Output Voltage/Receiver Input Voltage Receiver Output Voltage Continuous Power Dissipation @ 25˚C V Package 7V VCC + 0.5V VCC + 0.5V
- 10V to +15V 5.5V 1.73W
Derate V Package 13.9 m W/˚C above 25˚C Storage Temp. Range
- 65˚C to +150˚C Lead Temp. (Soldering 4 Sec.) 260˚C
Remended Operating Conditions
Supply Voltage, VCC Bus Voltage Operating Free Air Temp. (TA) 4.75V to 5.25V
- 7V to +12V 0˚C to +70˚C
Electrical Characteristics (Note 2)
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol VODL VOD ∆IVODI Parameter Differential...