MICROCIRCUIT DATA SHEET Original Creation Date: 01/24/96 Last Update Date: 03/17/97 Last Major Revision Date: 03/06/96 MDDS26LS31M-X REV 1A0 QUAD HIGH SPEED DIFFERENTIAL LINE DRIVER General Description The DS26LS31 is a quad differential line driver designed for digital data transmission over balanced lines. The DS26LS31 meets all the requirements of EIA Standard RS-422 and Federal Standard 1020. It is designed to provide unipolar differential drive to twisted-pair or parallel-wire transmission lines. The circuit provides an enable and disable function common to all four drivers. The DS26LS31 features TRI-STATE outputs and logically ANDed complementary outputs. The inputs are all LS compatible and are all one unit load. The DS26LS31 features a power up/down protection circuit which keeps the output in a high impedance state (TRI-STATE) during power up or down preventing erroneous glitches on the transmission lines. Industry Part Number NS Part Numbers DS26LS31 DS26LS31ME-SMD * DS26LS31MJ-QMLV** DS26LS31MJ-SMD *** DS26LS31MW-QMLV**** DS26LS31MW-SMD***** Prime Die DS26LS31 Controlling Document SEE FEATURES SECTION Processing Subgrp Description MIL-STD-883, Method 5004 1 2 3 4 5 6 7 8A 8B 9 10 11 Quality Conformance Inspection MIL-STD-883, Method 5005 1 Static tests at Static tests at Static tests at Dynamic tests at Dynamic tests at Dynamic tests at Functional tests at Functional tests at Functional tests at Switching tests at Switching tests at Switching tests at Temp ( oC) +25 +125 -55 +25 +125 -55 +25 +125 -55 +25 +125 -55 MICROCIRCUIT DATA SHEET MDDS26LS31M-X REV 1A0 Features - Operation from Single 5V Supply Outputs Won't Load Line When Vcc=0V Four Line Drivers in One Package For Maximum Package Density Output Short-Circuit Protection Complementary Outputs Meets the requirements of EIA Standard RS-422 Pin Compatible with AM26LS31 Glitch Free Power Up/Down Controlling Document: 5962-7802301Q2A*, VEA**, MEA***, VFA****, MFA***** 2 MICROCIRCUIT DATA SHEET MDDS26LS31M-X REV 1A0 (Absolute Maximum Ratings) (Note 1) Supply Voltage 7V Input Voltage 7V Output Voltage 5.5V Output Voltage (Power OFF) -0.25 to 6V Maximum Power Dissipation @ 25 C (Note 2) Cavity Package LCC Flat Pack Note 1: Note 2: 1400 mW 1600 mW 850 mW Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The table of "Electrical Characteristics" provide conditions for actual device operation. Derate CDip 11.5mW/C, CLCC= 13mW/C, CERPACK = 7.4mW/C above 25C. Recommended Operating Conditions Supply Voltage, Vcc MIN 4.5 MAX 5.5 UNITS V MIN -55 MAX +125 UNITS C Temperature, TA 3 MICROCIRCUIT DATA SHEET MDDS26LS31M-X REV 1A0 Electrical Characteristics DC PARAMETERS SYMBOL PARAMETER CONDITIONS NOTES Vih Logical "1" Input Voltage Vcc= 4.5V 1, 2 Vil Logical "0" Input Voltage Vcc= 5.5V 1, 2 Voh Logical "1" Output Voltage Vcc= 4.5V, Ioh= -20mA 2 Vol Logical "0" Output Voltage Vcc= 4.5V, Iol= 2 Iih Logical "1" Input Current Vcc= 5.5V, Vin=2.7V 2 Iil Logical "0" Input Current Vcc= 5.5V, Vin= .4V Ii Input Reverse Current Io TRI-STATE Output Current PINNAME MIN MAX SUBGROUPS V 1, 2, 3 V 1, 2, 3 V 1, 2, 3 .5 V 1, 2, 3 -2.0 20 uA 1, 2, 3 2 100 -360 uA 1, 2, 3 Vcc=5.5V, Vin=7V 2 -.01 .1 mA 1, 2, 3 Vcc=5.5V, Vo= .5V 2 -20 uA 1, 2, 3 Vcc=5.5V, Vo=2.5V 2 20 uA 1, 2, 3 -1.5 V 1, 2, 3 -150 mA 1, 2, 3 80 mA 1, 2, 3 20mA Vic Input Clamp Voltage Vcc=4.5V, Iin= -18mA 2 Ios Output Short Circuit Current Vcc=5.5V 2 Icc Power Supply Current Vcc=5.5V, All Outputs Disabled or Active 2 4 2 UNIT .8 2.5 -30 MICROCIRCUIT DATA SHEET MDDS26LS31M-X REV 1A0 Electrical Characteristics AC PARAMETERS: PROPAGATION DELAY TIME: (The following conditions apply to all the following parameters, unless otherwise specified.) AC: Vcc=5V, Vin = 1.3V to Vo = 1.3V, V(pulse) = 0 to 3V . SYMBOL tPLH tPHL Skew tPLZ tPHZ tPZL tPZH PARAMETER Input to Output Input to Output Output to Output Enable Time Enable Time Disable Time Disable Time CONDITIONS NOTES CL = 30 pF PINNAME MIN MAX UNIT SUBGROUPS 2 20 nS 9 2 30 nS 10, 11 2 20 nS 9 2 30 nS 10, 11 2 6 nS 9 2 9 nS 10, 11 2 35 nS 9 2 53 nS 10, 11 S2 Open, Enable, CL = 10 pF 2 35 nS 9 S2 Open, Enable, CL = 10 pF 2 53 nS 10, 11 S1 Open, Enable, CL = 10 pF 2 30 nS 9 2 45 nS 10, 11 S1 Open, Enable, CL = 10 pF 2 30 nS 9 S1 Open, Enable, CL = 10 pF 2 45 nS 10, 11 S2 Open, Enable, CL = 30 pF 2 45 nS 9 2 68 nS 10, 11 S2 Open, Enable, CL = 30 pF 2 45 nS 9 S2 Open, Enable, CL = 30 pF 2 68 nS 10, 11 S1 Open, Enable, CL = 30 pF 2 40 nS 9 2 60 nS 10, 11 S1 Open, Enable, CL = 30 pF 2 40 nS 9 S1 Open, Enable, CL = 30 pF 2 60 nS 10, 11 CL = 30 pF CL = 30 pF S2 Open, Enable, CL = 10 pF DC PARAMETERS - DRIFT VALUES (The following conditions apply to all the following parameters, unless otherwise specified.) DC: Delta calculations performed on QMLV only devices after burn-in and at Group B5. AC: . Voh Output High Voltage Vcc = 4.5, Ioh = -20 mA 2 -250 250 mV 1 Vol Output Low Voltage Vcc = 4.5, Iol = 20 mA 2 -50 50 mV 1 Icc Power Supply Current Vcc = 5.5, All outputs disabled or active 2 -8 8 mA 1 Note 1: Parameter tested go-no-go only. 5 MICROCIRCUIT DATA SHEET MDDS26LS31M-X REV 1A0 (Continued) Note 2: Subgroups 1,2 and 9,10: temperatures. Power dissipation must be externally controlled at elevated 6 MICROCIRCUIT DATA SHEET MDDS26LS31M-X REV 1A0 Graphics and Diagrams GRAPHICS# DESCRIPTION E20ARE LDLESS CHIP CARRIER, TYPE C 20 TERMINAL(P/P DWG) J16ARL CERDIP (J), 16 LEAD (P/P DWG) W16ARL CERPACK (W), 16 LEAD (P/P DWG) See attached graphics following this page. 7