DS89C387 Datasheet | National Semiconductor

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 m A 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 mon 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 patible with both TTL and CMOS signal levels. Features n Low power ICC: 1.5 m A 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 .national. 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 m A Clamp Diode Current (IIK, IOK) ± 150 m A DC Output Current, per pin (IOUT) ± 500 m A DC VCC or GND Current (ICC) - 65˚C to +150˚C Storage Temperature Range (TSTG) Maximum Power Dissipation (PD) @ 25˚C (Note 3) SSOP Package 1359 m W Lead Temperature (TL) (Soldering 4...