DS89C387_16 Datasheet, PDF (1/15 Pages) Texas Instruments – Twelve Channel CMOS Differential Line Driver

DS89C387
www.ti.com
SNLS101E – MAY 1995 – REVISED APRIL 2013
DS89C387 Twelve Channel CMOS Differential Line Driver
Check for Samples: DS89C387
FEATURES
1
•2 Low Power I_CC: 1.5 mA Maximum
• Meets TIA/EIA-422-B (RS-422)
• Ensured AC Parameters:
– Maximum Driver Skew −3 ns
– Maximum Transition Time −10 ns
• Available in SSOP Packaging:
– Requires 30% Less PCB Space than 3
DS34C87TMs
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 I_CC
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.
Connection Diagrams
Figure 1. 48-Pin SSOP Package
See Package Number DL0048A
1/6 of package
Figure 2. Functional Diagram
Enable
EN
L
H
H
Truth Table
Input
Outputs
DI
DO
DO*
X
Z
Z
H
H
L
L
L
H
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1995–2013, Texas Instruments Incorporated