NATL SEMITCOND (MEMORY) b6E D MM 65011c6 OO69087 443 BENSC3 ZANational Semiconductor DS26LS32C/DS26LS32M/DS26LS32AC/DS26LS33C/ DS26LS33M/DS26LS33AC Quad Differential Line Receivers General Description Features The DS26LS32 and DS26LS32A are quad differential line _ @ High differential or common-mode input voltage ranges receivers designed to meet the RS-422, RS-423 and Feder- of +7V on the DS26LS32 and DS26LS32A and +15V al Standards 1020 and 1030 for balanced and unbalanced on the DS26LS33 and DS26LS33A digital data transmission. +0.2V sensitivity over the input voltage range on the The DS26LS$32 and DS26LS32A have an input sensitivity of DS26LS32 and DS26LS32A, +0.5V sensitivity on the 200 mV over the input voltage range of +7V and the DS26LS33 and DS26LS33A DS26LS33 and DS26LS33A have an input sensitivity of | DS26LS32 and DS26LS32A meet all requirements of 500 mvV over the input voltage range of + 15V. RS-422 and RS-423 Both the DS26L$32A and DS26LS33A differ in function @ 6k minimum input impedance from the popular DS26LS32 and DS26LS33 in that input @ 100 mV input hysteresis on the DS26LS32 and pull-up and pull-down resistors are included which prevent DS26LS32A, 200 mV on the DS26LS33 and output oscillation on unused channels. DS26LS33A Each version provides an enable and disable function com- = Operation from a single 5V supply mon to all four receivers and features TRI-STATE outputs @ TRI-STATE outputs, with choice of complementary out- with 8 mA sink capability. Constructed using low power put enables for receiving directly onto a data bus Schottky processing, these devices are available over the full military and commerical operating temperature ranges. Logic Diagram SU | of , 4 1 DS26LS32C/DS26LS32M/DS26LS32AC/DS26LS33C/DS26LS33M/DS26LS33AC GNO Veo OUTPUT D OUTPUT C OUTPUT B ourrut A TL/F/S255-1 Connection Diagram Truth Table Dual-In-Line Package ENABLE ENABLE Input Output 4 L J 8 vec 0 1 x Hi-Z wren > 15 N ce Vip 2 VtH (Max) 1 7 | nurs B ote Below Vip < VtH (Min) 0 QUTPUT A == HI-Z = TRI-STATE . ENABLE 4 13 OUTPUT B Note: Input conditions may be any combination not defined for ENABLE 5 2 and ENABLE. ouTPuT c ENABLE as 1 oureut o Order Number DS26L$32CM, DS26LS32CN, INPUTS ef 7 10 DS26LS32MJ, DS26LS32ACM, DS26LS32ACN, 7 | weuTsD DS26LS33CN, DS26LS33MJ or DS26LS33ACN exo 4 ts See NS Package Number J16A, M16A or N16A For Complete Military 883 Specifications, TL/F/S255-2 See RETS Data Sheet. Top View Order Number DS26LS32Mu/883, DS26LS32MW/6883, DS26LS33MJ/883, DS26LS33MW/883 See NS Package Number J16A or W16A 2-36NATL SEMICOND (MEMORY) BBE D MM 6501126 0069088 38T MNSC3 o Absolute Maximum Ratings (note 1) {f Military/Aerospace specified devices are required, Storage Temperature Range 65C to + 165C please contact the National Semiconductor Sales Lead Temperature (Soldering, 4 seconds) 260C Office/Distributors for availability and specifications. Supply Voltage 7V Operating Conditions Common-Mode Range +25V Min Max Units Differential Input Voltage +25V Supply Voltage, (Vcc) Enable Voltage VV De2S1 S32M, DS26L833M 45 5.5 Vv Output Sink Current 50 mA DS26L$32C, DS26L$33C 475 625 Vv Maximum Power Dissipation* at 25C DS26LS32AC, DS26LS33AC Cavity Package 1433 mw (COML) , Molded Dip Package 1362 mW Temperature, (Ta) SO Package DS26LS32 1002 mw , DS26LS32A 1051 mw Me DS26LS33M 55 +125 Cc "Den i kage 9.6 mW/"C above 25C; d ded DIP pack: 10.9 W/O she Bone BG: derate mo} pacnage DS26L$32C, DS26L$33C 0 +70 Derate SO Package 8.01 mW/"C for DS26LS32 DS26LS32AC, DS26LS33AC 8.41 mW/'C for DS26LS32A (COML) Electrical Characteristics over the operating temperature range unless otherwise specified (Notes 2, 3 and 4) DVEES 192SC/WEES 192S/DEES 19ZS0/DVCES 197SA/NZES 192S0/9ZES 192S Symbol Parameter Conditions Min Typ Max | Units VTH Differential Input Vout = Vou | OS26LS32, DS26LS32A, 7V < Vom < +7V | -0.2| 0.07} 0.2 v Voltage or Vor DS26LS33, DS26LS33A, 15V < Voy +15V -0.5 | 0.14 0.5 v Rin Input Resistance 15V < Vow <= +15V (One Input AC GND) 6.0 8.5 kQ lIn Input Current (Under | Vin = 15V, Other Input 15V < Vin < +15V 2.3 mA Test) Vin = 15V, Other Input 15V < Viy < +15V 28 | mA VoH Output High Voltage | Voc = MIN, AViq = TV, Commercial 27 4.2 Vv VENABLE = 0.8V, lon = 440HA | Wiltary 25] 42 Vv VoL Output Low Voltage | Voc = Min, AVin = 1V, lo. = 4mA 0.4 Vv VENABLE = 0.8V lo. = 8mA 0.45 | V Vir Enable Low Voltage 08 Vv Vin Enable High Voltage 2.0 Vv Vi Enable Clamp Voc = Min, lin = 18mMA 415 Vv Voltage lo OFF-State (High Voc = Max Vo = 2.4V 20 pA {mpedance) Output Current Vo = 0.4V 20 | pA lie Enable Low Current | Vin = 0.4V 0.36 | mA hy Enable High Current | Vin = 2.7V 20 pA Isc Output Short-Circuit | Vo = OV, Voc = Max, AVin = 1V 15 85 mA Current lec Power Supply Voc = Max, All Vin = GND, DS26LS32, DS26LS32A 52 70 mA Current Outputs Disabled DS26L$33, DS26LS33A 57 | 80 | mA I Input High Current Vin = 5.5V 100 pA Vuyst | Input Hysteresis Ta = 26C, Voc = SV, DS26LS32, DS26S32A 100 mV Vom = OV DS26L833, DS26LS33A 200 mV Note 1: Absolute Maximum Ratings are those values beyond which the safety of the device cannot be quaranteed. 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 2: 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. Ali values shown as max or min are so classified on absolute value basis. Note 3: Ail typical values ara Voc = 5V, Ta = 25C. Note 4: Only one output at a time should be shorted. 2-37NATL SEMICOND (MEMORY) bAE D MM 65011e6 0069089 216 BNSC3. Switching Characteristics voc = 5v, Ts = 25C Symbol Parameter Conditions DS26LS32/DS26LS33 DS26LS32A/DS26LS33A Units Min Typ Max Min Typ Max teLH Input to Output CL = 15 pF 17 25 23 35 ns teHL 17 25 23 35 ns tLz ENABLE to Output | CL = 5pF 20 30 15 22 ns tuz 15 22 20 25 ns tz ENABLE to Output | C, = 15 pF 15 22 14 22 ns tzH 15 22 16 22 ns AC Test Circuit and Switching Time Waveforms Load Test Circuit for TRI-STATE Outputs TEST DS26LS32C/DS26LS32M/DS26LS32AC/DS26LS33C/DS26LS33M/DS26LS33AC POINT Vee 2k FROM OUTPUT UNDER TEST 2 ALL DIODES Cy INCLUDES on 1N916 OR PROBE AND JIG > ak 13064 CAPACITANCE Pe = TL/F/5255-3 Propagation Delay (Notes 1 and 3) Enable and Disable Times (Notes 2 and 3) Vou - 3v ENABLE OUTPUT INPUT 13V Vo. ov PHL naAsy 25V output ~* OPPOSITE PHASE NORMALLY S2 OPEN Nav ~1.5 INPUT TRANSITION Low y ~2.8V OL TL/F/5255-~4 v ze ouTruT oH Note 1: Diagram shown for ENABLE iow. NORMALLY $1 OPEN Nete 2: S1 and S2 of load circuit are closed except where shown. HIGH Woy Note 3: Pulse generator for all pulses: Rate = 1.0 MHz; Zo = 50M; t < 6 ns; ft < 6.0 ns. TL/F/5255-5 Typical Applications Two-Wire Balanced InterfaceRS-422 ENABLE a 1/4 DS2BLS32A DATA DATA Ry OUTPUT 1/4 DSZ6L531 Single Wire with Driver Ground ReferenceRS-423 1/4 $3691 DATA 1/4 OS26LS32A + DATA f DUTPUT TL/F/5255-6 TLAF/5255-7 2-38