Obsolete Device: DS26LS33M DS26LS32AC,DS26LS32C,DS26LS32M,DS26LS33M DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Quad Differential Line Receivers Literature Number: SNLS352B May 1999 DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Quad Differential Line Receivers General Description Features The DS26LS32 and DS26LS32A are quad differential line receivers designed to meet the RS-422, RS-423 and Federal Standards 1020 and 1030 for balanced and unbalanced digital data transmission. The DS26LS32 and DS26LS32A have an input sensitivity of 200 mV over the input voltage range of 7V and the DS26LS33 have an input sensitivity of 500 mV over the input voltage range of 15V. n High differential or common-mode input voltage ranges of 7V on the DS26LS32 and DS26LS32A and 15V on the DS26LS33 n 0.2V sensitivity over the input voltage range on the DS26LS32 and DS26LS32A, 0.5V sensitivity on the DS26LS33 n DS26LS32 and DS26LS32A meet all requirements of RS-422 and RS-423 n 6k minimum input impedance n 100 mV input hysteresis on the DS26LS32 and DS26LS32A, 200 mV on the DS26LS33 n Operation from a single 5V supply n TRI-STATE outputs, with choice of complementary output enables for receiving directly onto a data bus The DS26LS32A differ in function from the popular DS26LS32 and DS26LS33 in that input pull-up and pulldown resistors are included which prevent output oscillation on unused channels. Each version provides an enable and disable function common to all four receivers and features TRI-STATE (R) outputs with 8 mA sink capability. Constructed using low power Schottky processing, these devices are available over the full military and commerical operating temperature ranges. Logic Diagram 00525501 TRI-STATE (R) is a registered trademark of National Semiconductor Corporation. (c) 2004 National Semiconductor Corporation DS005255 www.national.com DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Quad Differential Line Receivers Obsolete Device: DS26LS33M DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Obsolete Device: DS26LS33M Connection Diagrams Dual-In-Line Package 20-Lead Ceramic Leadless Chip Carrier 00525502 Top View Order Number DS26LS32CM, DS26LS32CN, DS26LS32ACM, DS26LS32ACN, DS26LS33ACM or DS26LS33ACN See NS Package Number M16A or N16E For Complete Military Product Specifications, refer to the appropriate SMD or MDS. Order Number DS26LS32MJ/883, DS26LS32MW/883, DS26LS32ME/883, DS26LS33MW/883 See NS Package Number E20A, J16A or W16A 00525512 Truth Table ENABLE ENABLE 0 1 Input Output X Hi-Z See VID VTH (Max) 1 Note Below VID VTH (Min) 0 Hi-Z = TRI-STATE (R) Note: Input conditions may be any combination not defined for ENABLE and ENABLE . www.national.com 2 Absolute Maximum Ratings (Note 3) Operating Conditions If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage DS26LS32M, DS26LS33M 7V Differential Input Voltage Enable Voltage DS26LS32C Molded Dip Package 1362 mW SO Package DS26LS32 1002 mW DS26LS32A 1051 mW Storage Temperature Range DS26LS32M, DS26LS33M V 4.75 5.25 V -55 +125 C 0 +70 C (MIL) DS26LS32C DS26LS32AC (COML) -65C to +165C Lead Temperature (Soldering, 4 seconds) 5.5 Temperature, (TA) Maximum Power Dissipation (Note 1) at 25C 1433 mW 4.5 (COML) 50 mA Cavity Package Units DS26LS32AC 7V Output Sink Current Max (MIL) 25V 25V Common-Mode Range Min Supply Voltage, (VCC) Note 1: Derate cavity package 9.6 mW/C above 25C; derate molded DIP package 10.9 mW/C above 25C. Note 2: Derate SO Package 8.01 mW/C for DS26LS32 260C 8.41 mW/C for DS26LS32A Electrical Characteristics (Notes 4, 5, 6) over the operating temperature range unless otherwise specified Symbol Parameter Conditions Min Typ Max Units 0.2 V Differential Input VOUT = VOH DS26LS32, DS26LS32A, -7V VCM +7V -0.2 Voltage or VOL DS26LS33, DS26LS33A, -15V VCM +15V -0.5 0.07 0.14 RIN Input Resistance -15V VCM +15V (One Input AC GND) 6.0 8.5 IIN Input Current (Under V IN = 15V, Other Input -15V VIN +15V 2.3 mA Test) V IN = -15V, Other Input -15V VIN +15V -2.8 mA Output High Voltage VCC = MIN, VIN = 1V, Commercial 2.7 4.2 V VENABLE = 0.8V, IOH = -440 A Military 2.5 4.2 V VCC = Min, VIN = -1V, IOL = 4 mA 0.4 VENABLE = 0.8V IOL = 8 mA 0.45 V 0.8 V VTH VOH VOL Output Low Voltage VIL Enable Low Voltage VIH Enable High Voltage VI Enable Clamp 0.5 V k 2.0 V V VCC = Min, IIN = -18 mA -1.5 V VO = 2.4V 20 A VO = 0.4V -20 A -0.36 mA Voltage IO OFF-State (High V CC = Max Impedance) Output Current IIL Enable Low Current IIH Enable High Current VIN = 2.7V ISC Output Short-Circuit V VIN = 0.4V O = 0V, VCC = Max, VIN = 1V -15 20 A -85 mA Current ICC Power Supply VCC = Max, All VIN = GND, DS26LS32, DS26LS32A 52 70 mA Current Outputs Disabled DS26LS33, DS26LS33A 57 80 mA II Input High Current VIN = 5.5V VHYST Input Hysteresis TA = 25C, VCC = 5V, DS26LS32, DS26S32A 100 mV VCM = 0V DS26LS33, DS26LS33A 200 mV 100 A Note 3: "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the device should be operated at these limits. The table of "Electrical Characteristics" provides conditions for actual device operation. Note 4: All currents into device pins are shown as positive, all currents out of device pins are shown as negative, all voltages are referenced to ground, unless otherwise specified. All values shown as max or min are so classified on absolute value basis. Note 5: All typical values are VCC = 5V, TA = 25C. Note 6: Only one output at a time should be shorted. 3 www.national.com DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Obsolete Device: DS26LS33M DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Obsolete Device: DS26LS33M Switching Characteristics VCC = 5V, TA = 25C Symbol Parameter Conditions DS26LS32/DS26LS33 Min tPLH Input to Output CL = 15 pF tPHL tLZ ENABLE to Output CL = 5 pF tHZ tZL ENABLE to Output CL = 15 pF tZH Typ Max 17 17 DS26LS32A/DS26LS33A Min Max 25 23 35 ns 25 23 35 ns 20 30 15 30 ns 15 22 20 25 ns 15 22 14 22 ns 15 22 15 22 ns AC Test Circuit and Switching Time Waveforms Load Test Circuit for TRI-STATE (R) Outputs 00525503 Propagation Delay (Notes 7, 9) 00525504 Enable and Disable Times (Notes 8, 9) 00525505 Note 7: Diagram shown for ENABLE low. Note 8: S1 and S2 of load circuit are closed except where shown. Note 9: Pulse generator for all pulses: Rate = 1.0 MHz; ZO = 50; tr 6 ns; tf 6.0 ns. www.national.com Units Typ 4 DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Obsolete Device: DS26LS33M Typical Applications Two-Wire Balanced Interface -- RS-422 00525506 Single Wire with Driver Ground Reference -- RS-423 00525507 5 www.national.com DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Obsolete Device: DS26LS33M Physical Dimensions inches (millimeters) unless otherwise noted Ceramic Dual-In-Line Package (J) Order Number DS26LS32MJ/883 or DS26LS33MJ/883 NS Package Number J16A Small Outline Package (M) Order Number DS26LS32CM or DS26LS32ACM NS Package Number M16A www.national.com 6 Physical Dimensions DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Obsolete Device: DS26LS33M inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) Order Number DS26LS32CN or DS26LS32ACN NS Package Number N16E 16 Lead Ceramic Flatpak (W) Order Number DS26LS32MW/883 or DS26LS33MW/883 NS Package Number W16A 7 www.national.com DS26LS32AC/DS26LS32C/DS26LS32M/DS26LS33M Quad Differential Line Receivers Obsolete Device: DS26LS33M Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20 Lead Ceramic Leadless Chip Carrier (E) Order Number DS26LS32ME/883 NS Package Number E20A LIFE SUPPORT POLICY NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. 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