Philips Components-Signetics NMC1488 Document No. 853-0933, ECN No. 36552 Quad line driver Date of Issue November 14, 1986 Status Product Specification Data Communication Products DESCRIPTION FEATURES PIN CONFIGURATION The MC1488 is a quad line driver which Current limited output: t10mA Typ converts standard DTL/TTL input logic levels through one stage of inversion to D, F, N Packages Power-off source impedance: output levels which meet EIA Standard 3002 min a hay v No. RS-232C and CCITT Recommenda- Simple slew rate control with external VEE ce tion V.24. capacitor INPUT 1 fz] 13] INPUT 48 @ Flexibla operating supply range outputs [3] Oya INPUT 48 inputs are DTL/TTL compatible input 24 [4] [3] ovrpura input ze [5 | 10] INPUT 38 APPLICATIONS output [6] Up INPUT 3A Gomputer port driver ano [7] fe] ourrurs @ Digital transmission over long lines TOP VIEW Slew rate contro! TTL/DTL-to-MOS translation CIRCUIT SCHEMATIC O V+ Ri 2 R2 D1 82K > 6.2K INPUT 4 INPUT D2 D3 OUTPUT Da D6 A > Ra > 5.6K < < 14 CIRCUIT 393Philips ComponentsSignetics Data Cammunication Products Product Specification Quad line driver MC 1488 ORDERING INFORMATION DESCRIPTION TEMPERATURE RANGE ORDER CODE 14-Pin Plastic SO OC to +75C MCi4988D 14-Pin Plastic DIP OC to +75C MC1488N 14-Pin Ceramic DIP OC to +75C MC 1488F ABSOLUTE MAXIMUM RATINGS SYMBOL PARAMETER RATING UNIT Vec Supply vollage V+ +15 Vv V- -15 Vv Vin Input voltage -15 < Vins 7.0 V Vout Output voltage 415 v Py Maximum power dissipation, F4 = 25C (still-air) F package 1190 mW N package 4420 mW D package 4040 mW Ta Operating ambient temperature range Oto +75 me) Tste Storage temperature range -65 to +150 C Tsovo Lead soldering temperature (10sec max) 300 C NOTE: 1. Derate above 25C, at the following rates: F package at 9.5mW/C. N package at 11.4mW?C. D package at 8.3mW/C. November 14, 1986 394Philips ComponentsSignetics Data Communication Products Product Specification Quad line driver MC1488 DC AND AC ELECTRICAL CHARACTERISTICS V+ = +9.0V 21%, V = -9.0V 41%, Ta = 0C to +75C, unless otherwise specifed. All typicals are for V+ = 9.0V, V-~ =9.0V, and Ta = 25C! . LIMITS SYMBOL PARAMETER TEST CONDITIONS Min Typ Max | UNIT Vin Logic 0 input current Vin = OV -1.0 -1.6 mA Vi Logic 17 input current Vin = +5.0V 0.005 10.0 pA R,_ = 3.0kQ Vi =80V : = : Vv Vou High level output voltage Vy =0.8V Vv 9.0V 6.0 7.0 V+ =13.2V 9.0 10.5 v V- =-13.2V Rt = 3.0K V+ =9.0V Vor Low level output voltage V~=-9.0V -6.0 .8 v Vin = 1.9V V4 =13.2V -9.0 | -10.5 Vv Wo =-13.2V High level output Vout = OV Isce short-circuit current Vin = 0.8V 6.0 | -10.0 | -12.0 mA . Low level output Vout = OV Isc- short-circuit current Vin = 1.9 50 10.0 12.0 mA . V+=V-=0V Rout Output resistance Vour = 42 300 Q V+ = 9.0V, V-=-9.0V 15.0 20.0 mA Positive supply current Vine 1.9V | V+=12V, Ve =-12V 19.0 25.0 mA I+ (output open) Va = 15V, V- = -15V 25.0 34.0 mA V4 = 9.0V, V-=-9.0V 45 6.0 mA Vin = O.8V V4 =12V, V-=-12V 55 7.0 mA V+ = 18V, V- = -15V 8.0 12.0 mA Va = 9.0V, V- =-9.0V -13.0 | -17.0 mA Negative supply current Vin= 1.9V | V+=12V, V-=-12V ~18.0 | -23.0 mA (output open) V+ = 15V, V-=-15V -25.0 | -34.0 mA V+ = 9.0V, V- = -9.0V -1 15 pA Vin=0.8V | V+=12V, Vo =-12V +1 -15 yA V+ = 15V, V-=-15V 0.01 7 -2.5 mA Maximum power dissipation, T, = 25C (still-air)? p F package 1190 mW D N package 1420 | mW D package 1040 mW tpon Propagation delay to 1 AL = 3.0kQ, C, = 15pF, Ts = 25C 275 560 ns tpoo Propagation delay to 0 Ry = 3.0kQ, C_ = 15pF, Ta = 25C 70 175 ns tr Rise time R, = 3.0kQ, CL = 15pF, Ta = 25C 75 100 ns te Fall time R_ = 3.0k9, C, = 15pF, Ta = 25C 40 75 ns NOTES: 1. Voltage values shown are with respect to network ground terminal. Positive current is defined as current into the referenced pin. 2. Derate above 25C, at the following rates: F package at 9.5mWPC. N package at 11.4mWPc. D package at 8.3mW/C. November 14, 1986 395Philips ComponentsSignetics Data Communication Products Quad line driver Product Specification MC1488 TYPICAL PERFORMANCE CHARACTERISTICS NOTE: C, includes probe and jig capacitance. SWITCHING WAVEFORMS --- 3.0 15V Vin PDo _.| ov tpp Vout ' = 50% NOTE: tg and |, are measured between 10% and 90% of the output wavelorm. November 14, 1986 144 MC1489/ 15 TUDTL 1/4 MC1488 MC1499A PUDTL gw >-r { p- aT), E g -L _P _ L _P Zz 6 z . 5 INTERCONNECTING I 5 CABLE = hd 8 1/4 MC 1489/ a -3 TUDTL MC1489A TPUDTL Ee 8 ~~ ATF C ED - _ 7- oO 3 y= ~+= 1 7 SIGNAL GROUND 1/4 MC1488 -12 a) INTERNAL DATA -15 TERMINAL I L = = EQUIPMENT MODEM -16 -12 -8 -4 0 4 8 12 16 q OUTPUT VOLTAGE (V) NOTE: Optional lor neise filtering Output Voltage and Current-Limiting Characteristics RS-232C Data Transmission AC LOAD CIRCUIT APPLICATIONS TYPICAL APPLICATIONS By connecting a capacitor to each driver output the slew rate can be controlled utilizing the aut- 412 VIN Yout put currentsimiting characteristics of the MC 1488. Fora set slew rate the appropriate ca- V4 MC 1488 OUTPUT aK pacitor value may be calculated using the fol- on -10 TO L 15pF* lowing relationship INPUT 1K av = = C = Isc(AT/AV) 10K where C is the required capacitor, Is is the + short-circuit current value, and AV/AT is the -12V -12 slew rate. RS-232C specifies that the output slew rate must not exceed 30V/,s. Using the worst-case Output short-circuit current of 12mA in the above equation, calculations result in a re- quired capacitor of 400pF connected to each output. 396 DTUTTL-to-MOS Translator +12 V4 MC 1488 TL HTL ai GUTPUT INPUT 07V TO +10 -12V ~ DTUTTL-to-HTL Translator +52V 1/4 MC 1438 OTL RTL TTL OUTPUT INPUT 0.7V TO 43.7V 1290 40 OTLTTL-to-RTL Translator