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DS89C387

National Semiconductor
Part Number DS89C387
Manufacturer National Semiconductor
Description Twelve Channel CMOS Differential Line Driver
Published Mar 30, 2005
Detailed Description DS89C387 Twelve Channel CMOS Differential Line Driver May 1995 DS89C387 Twelve Channel CMOS Differential Line Driver G...
Datasheet PDF File DS89C387 PDF File

DS89C387
DS89C387

Overview
DS89C387 Twelve Channel CMOS Differential Line Driver May 1995 DS89C387 Twelve Channel CMOS Differential Line Driver General Description The DS89C387 is a high speed twelve channel CMOS differential driver that meets the requirements of TIA/EIA-422-B.
The DS89C387 features a low ICC specification of 1.
5 mA maximum, which makes it ideal for battery powered and power conscious applications.
The device replaces three DS34C87s and offers a PC board space savings up to 30%.
The twelve channel driver is available in a SSOP package.
The device is ideal for wide parallel bus applications.
Each TRI-STATE ® enable (EN) allows the driver outputs to be active or in a HI-impedance off state.
Each enable is common to only two drivers for flexibility and control.
The drivers may be disabled to turn off load current and to save power when data is not being transmitted.
The driver’s input (DI) is compatible with both TTL and CMOS signal levels.
Features n Low power ICC: 1.
5 mA maximum n Meets TIA/EIA-422-B (RS-422) n Guaranteed AC parameters: — Maximum driver skew −3 ns — Maximum transition time −10 ns n Available in SSOP packaging: — Requires 30% less PCB space than 3 DS34C87TMs Connection Diagram 48L SSOP DS89C387 Functional Diagram DS012086-2 1/6 of package Truth Table Enable EN L H H Input DI X H L DO Z H L Outputs DO* Z L H DS012086-1 Order Number DS89C387TMEA See NS Package Number MS48A TRI-STATE ® is a registered trademark of National Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS012086 www.
national.
com Absolute Maximum Ratings (Notes 1, 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Supply Voltage (VCC) −0.
5 to 7.
0V −1.
5 to VCC +1.
5V DC Voltage (VIN) −0.
5 to 7V DC Output Voltage (VOUT) ± 20 mA Clamp Diode Current (IIK, IOK) ± 150 mA DC Output Current, per pin (IOUT) ± 500 mA DC VCC or GND Current (ICC) −65˚C to +150˚C Sto...


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