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MICROCIRCUIT DATA SHEET MDDS26LS31M-X REV 1A0
Original Creation Date: 01/24/96 Last Update Date: 03/17/97 Last Major Revision Date: 03/06/96
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
DS26LS31
NS Part Numbers
DS26LS31ME-SMD * DS26LS31MJ-QMLV** DS26LS31MJ-SMD *** DS26LS31MW-QMLV**** DS26LS31MW-SMD*****
Prime Die
DS26LS31
Controlling Document
SEE FEATURES SECTION
Processing
MIL-STD-883, Method 5004
Subgrp Description
1 2 3 4 5 6 7 8A 8B 9 10 11 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
Quality Conformance Inspection
MIL-STD-883, Method 5005
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MDDS26LS31M-X REV 1A0
MICROCIRCUIT DATA SHEET
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*****
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MICROCIRCUIT DATA SHEET
(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:
1400 mW 1600 mW 850 mW
Note 2:
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 Temperature, TA MIN -55 MAX +125 UNITS C MAX 5.5 UNITS V
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MDDS26LS31M-X REV 1A0
MICROCIRCUIT DATA SHEET
Electrical Characteristics
DC PARAMETERS
SYMBOL Vih Vil Voh Vol Iih Iil Ii Io PARAMETER Logical "1" Input Voltage Logical "0" Input Voltage Logical "1" Output Voltage Logical "0" Output Voltage Logical "1" Input Current Logical "0" Input Current Input Reverse Current TRI-STATE Output Current Vcc= 4.5V Vcc= 5.5V Vcc= 4.5V, Ioh= -20mA Vcc= 4.5V, Iol= 20mA CONDITIONS NOTES 1, 2 1, 2 2 2 2 2 2 2 2 2 2 2 -30 -2.0 100 -.01 2.5 .5 20 -360 .1 -20 20 -1.5 -150 80 PINNAME 2 .8 MIN MAX UNIT V V V V uA uA mA uA uA V mA mA SUBGROUPS 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3
Vcc= 5.5V, Vin=2.7V Vcc= 5.5V, Vin= .4V Vcc=5.5V, Vin=7V Vcc=5.5V, Vo= .5V Vcc=5.5V, Vo=2.5V
Vic Ios Icc
Input Clamp Voltage Output Short Circuit Current Power Supply Current
Vcc=4.5V, Iin= -18mA Vcc=5.5V Vcc=5.5V, All Outputs Disabled or Active
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MDDS26LS31M-X REV 1A0
MICROCIRCUIT DATA SHEET
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 PARAMETER Input to Output CL = 30 pF CONDITIONS NOTES 2 2 tPHL Input to Output CL = 30 pF 2 2 Skew Output to Output CL = 30 pF 2 2 tPLZ Enable Time S2 Open, Enable, CL = 10 pF 2 2 S2 Open, Enable, CL = 10 pF S2 Open, Enable, CL = 10 pF tPHZ Enable Time S1 Open, Enable, CL = 10 pF 2 2 2 2 S1 Open, Enable, CL = 10 pF S1 Open, Enable, CL = 10 pF tPZL Disable Time S2 Open, Enable, CL = 30 pF 2 2 2 2 S2 Open, Enable, CL = 30 pF S2 Open, Enable, CL = 30 pF tPZH Disable Time S1 Open, Enable, CL = 30 pF 2 2 2 2 S1 Open, Enable, CL = 30 pF S1 Open, Enable, CL = 30 pF 2 2 PINNAME MIN MAX 20 30 20 30 6 9 35 53 35 53 30 45 30 45 45 68 45 68 40 60 40 60 UNIT nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS nS SUBGROUPS 9 10, 11 9 10, 11 9 10, 11 9 10, 11 9 10, 11 9 10, 11 9 10, 11 9 10, 11 9 10, 11 9 10, 11 9 10, 11
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 Vol Icc Output High Voltage Output Low Voltage Power Supply Current Note 1: Vcc = 4.5, Ioh = -20 mA Vcc = 4.5, Iol = 20 mA Vcc = 5.5, All outputs disabled or active 2 2 2 -250 -50 -8 250 50 8 mV mV mA 1 1 1
Parameter tested go-no-go only.
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(Continued)
Note 2: Subgroups 1,2 and 9,10: temperatures. Power dissipation must be externally controlled at elevated
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MICROCIRCUIT DATA SHEET
Graphics and Diagrams
GRAPHICS# E20ARE J16ARL W16ARL DESCRIPTION LDLESS CHIP CARRIER, TYPE C 20 TERMINAL(P/P DWG) CERDIP (J), 16 LEAD (P/P DWG) CERPACK (W), 16 LEAD (P/P DWG)
See attached graphics following this page.
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