* Package Options Include Both Plastic and Ceramic Chip Carriers in Addition to Plastic and Ceramic DIPs TYPES SN5427, SN54LS27, SN7427, SN74LS27 TRIPLE 3-INPUT POSITIVE-NOR GATES REVISED DECEMBER 1983 $N5427, SN54LS827 ... JOR W PACKAGE * Dependable Texas Instruments Quality and Reliability description These devices contain three independent 3-input NOR gates. The SN5427 and SN54LS27 are characterized for op- eration over the full military temperature range of 5C to 125C. The SN7427 and SN74LS27 are characterized for operation from 0C to 70C. FUNCTION TABLE (each gate) INPUTS OUTPUT Y - xx rLP om -M D & mr k x lo L L L H ee) logic diagram (each gate) SSDIASG WLLL positive logic SN7427 ... JORN PACKAGE S8N74LS27 ... D, J ORN PACKAGE (TOP VIEW) wi Uvbvee 1B (2 13.) 1 2a [3 120 1 28 (4 119 3c 2c Cs io] 3B 2Y Ce ef] 3A GND (7 af] 3Y SN54LS27 ... FK PACKAGE SN74L827 ... FN PACKAGE (TOP VIEW) NC - No internal connection => Y=A+B+C or Y=A-B-C PRODUCTION DATA ., This document contains intermation current as J 3-130 of publication date, Products conform to TEXAS specifications per the terms of Texas Instruments standard warranty. Production processing does ] NSTRUM ENTS not necessarily include testing of all parameters. posT OFFICE BOX 225012 DALLAS, TEXAS 75265 TYPES SN5427, SN54LS27, SN7427, SN74LS27 TRIPLE 3-INPUT POSITIVE-NOR GATES schematics (each gate) 27 Vec 4kQ : 130 Q INPUTS an x OUTPUT Y 4kQ 4kQ c a GND INPUTS A fe f M_, < fg 63 10kQN mT 4xQ 2 output ' a ? UTPU Vv 2 Oo p *? B fq a 10 23 *) OG > ol * - - VAS kQ 5 3k c a il & 10k2 Resistor values shown are nominal! 4. GND t absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage, Vcc (see Note 1) Sa 7V Input voltage: (27 ee nee een ee nee eterna 5.5V LS 7V Operating free-air temperature: SN54 0. cc eee eee 58C to 125C rr OC to 70C Storage temperature range 20. eg ete cee ee eee bene e been ees ~65C to 150C NOTE 1: Voltage values are with respect to network ground terminal we TEXAS 3-131 INSTRUMENTS POST OFFICE BOX 225012 @ DALLAS TEXAS 75265 TYPES SN5427, SN7427 TRIPLE 3-INPUT POSITIVE-NOR GATES recommended operating conditions SN5427 SN7427 UNIT MIN NOM MAX | MIN NOM MAX Vec Supply voltage 45 5 5.5 | 4.75 5 5.25 Vin High-ievei input voltage 2 2 Vit Low-level input voltage 0.8 08 foH High-level output current - 0.8 ~ 0.8 mA Jo_ Low-level output current 16 16 mA Ta Operating free-air temperature 55 125 0 70 C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) SN5427 $N7427 PARAMETER TEST CONDITIONS t UNIT MIN TYP MAX| MIN TYP? MAX ViK Veco = MIN, ip =-12mA ~ 1.5 1.5 VoH Veco = MIN, Vita O8V, foH=-O0.8mA 24 3.4 2.4 3.4 Vat Voc = MIN, ViIH=2V, lo, = 16 mA 0.2 0.4 0.2 0.4 in Veo =MAX, V,=5.5V 1 1 mA NH Veco = MAX, V,=24V 40 40 uA fhe Vcc =MAX, V,=04V 1.6 ~16 mA i) los Vcc = MAX 20 55] 18 65 mA lecH Veco = MAX, VV, =0V 10 16 10 16 mA lec. Voc =MAX, See Note 2 16 26 16 26 mA + =] 1 For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. re tT All typical values are at Voc = SV. Ta = 26C. Not more than one output should be shorted at a time. 0 NOTE 2: One input at 4.5 V, ali others at GND. m < switching characteristics, Vcc = 5 V, Ta = 25C (see note 3) m FROM TO TY T ~ PARAMETER (INPUT) (ouTPUT) TEST CONDITIONS MIN P MAX UNI tPLH 10 15 ns PL A, Bor Y Ay = 400 2, C. = 15 pF PHL 7 M1 ns NOTE 3: See General Information Section for load circuits and voltage waveforms i 3-132 EXAS INSTRUMENTS POST OFFICE BOX 225012 @ DALLAS TEXAS 75265 TYPES SN54L827, SN74LS27 TRIPLE 3-INPUT POSITIVE-NOR GATES recommended operating conditions SN54LS27 SN74LS27 UNIT MIN NOM MAX | MIN NOM MAX Vcc Supply voitage 45 5 5.5 | 4.75 5 56.26 Vint High-level input voltage 2 2 Vi_ Low-level input voltage 0.7 0.8 Vv loH = High-level output current - 04 - 0.4 mA lo, ~~ Low-levet output current 4 8 mA Ta Operating free-air temperature 55 125 0 70 c electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) ER TES Tro SN54LS27 SN74LS27 unit PARAMET T CONDITIONS t MIN TYPt MAX] MIN TYP$ MAX Vik Vec = MIN, ly =-18mA -1.5 1.5 v VOH Voc = MIN, Vit =MAX, IpH =-04mA 2.5 3.4 2.7 34 v Voc = MIN, Vin=2v. lol =4 mA 0.25 0.4 0.25 0.4 VoL Vv Voc = MIN, Vipn=2V, lot =8 mA 0.35 0.5 i Veco =MAX, Vp=7V 0.1 01 mA hy Veco =MAX, Vp=2.7V 20 20 uh hie Veco =MAX, Vv, =04V - 0.4 04 ma 3 los Vec = MAX ~ 20 ~ 100 | 20 100 mA locH Veco =MAX, Vv) =0V 2 4 2 4 mA leet Vcc =MAX, See Note 2 3.4 68 3.4 6.8 mA lw t For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ze $ All typical values are at Voc = 5 V, Ta = 28C. > Not more than one output should be shorted at a time, and the duration of the short-circuit should not exceed one second. ui NOTE 2: One input at 4,5 V, all others at GND. Qa switching characteristics, Vcc = 5 V, Ta = 25C (see note 3) = FROM TO PARAMETE IN INIT R (INPUT) (ouTPuT) TEST CONDITIONS M TYP MAX U tPLH 10 15 ns A, Bor c Y R_ =2kQ, Cy = 15 pF tPHL 10 18 ns NOTE 3: See General information Section for load circuits and valtage waveforms. TEXAS ap 3-133 INSTRUMENTS POST OFFICE BOX 225012 @ DALLAS, TEXAS 75265