INTEGRATED CIRCUITS 74ALS27 Triple 3-Input NOR gate Product specification IC05 Data Handbook 1991 Feb 08 Philips Semiconductors Product specification Triple 3-input NOR gate TYPE 74ALS27 TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 4.0ns 1.5mA 74ALS27 PIN CONFIGURATION ORDERING INFORMATION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C DRAWING NUMBER 14-pin plastic DIP 74ALS27N SOT27-1 14-pin plastic SO 74ALS27D SOT108-1 1 14 VCC 1B 2 13 1C 2A 3 12 1Y 2B 4 11 3C 2C 5 10 3B 2Y 6 9 3A GND 7 8 3Y ORDER CODE DESCRIPTION 1A SC00014 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS DESCRIPTION 74ALS (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW nA, nB, nC Data inputs 1.0/1.0 20µA/0.1mA nY Data output 20/80 0.4mA/8mA NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state. LOGIC SYMBOL IEC/IEEE SYMBOL 1 1 1 2 13 3 4 5 9 10 12 2 11 13 3 1A 1B 1C 2A 2B 2C 3A 3B 3C 4 6 5 1Y 2Y 3Y 9 10 12 6 8 VCC = Pin 14 GND = Pin 7 SC00016 SF00036 LOGIC DIAGRAM 1A 1B 1C 2A 2B 2C 3A 3B VCC = Pin 14 GND = Pin 7 1991 Feb 08 8 11 3C FUNCTION TABLE 1 2 INPUTS 12 13 3 4 6 5 9 10 11 8 1Y 2Y 3Y OUTPUT nA nB nC nY H X X L X H X L X X H L L L L H H = High voltage level L = Low voltage level X = Don’t care SC00028 2 853–1162 01670 Philips Semiconductors Product specification Triple 3-input NOR gate 74ALS27 ABSOLUTE MAXIMUM RATINGS (Operation beyond the limit set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.) PARAMETER SYMBOL RATING UNIT VCC Supply voltage –0.5 to +7.0 V VIN Input voltage –0.5 to +7.0 V IIN Input current –30 to +5 mA –0.5 to VCC V VOUT Voltage applied to output in High output state IOUT Current applied to output in Low output state Tamb Operating free-air temperature range Tstg Storage temperature range 16 mA 0 to +70 °C –65 to +150 °C RECOMMENDED OPERATING CONDITIONS LIMITS SYMBOL PARAMETER UNIT MIN NOM MAX 5.0 5.5 VCC Supply voltage 4.5 VIH High-level input voltage 2.0 VIL Low-level input voltage 0.8 V IIk Input clamp current –18 mA IOH High-level output current –0.4 mA IOL Low-level output current 8 mA +70 °C Tamb Operating free-air temperature range V V 0 DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL LIMITS TEST CONDITIONS1 PARAMETER MIN VOH High-level output voltage VCC±10%, VIL = MAX, VIH = MIN, IOH = –0.4mA VOL O Low level output voltage Low-level VCC = MIN,, VIL = MAX,, VIH = MIN VIK Input clamp voltage VCC = MIN, II = IIK II Input current at maximum input voltage IIH TYP2 UNIT MAX VCC – 2 V IOL = 4mA 0.25 0.40 V IOL = 8mA 0.35 0.50 V –0.73 –1.5 V VCC = MAX, VI = 7.0V 0.1 mA High-level input current VCC = MAX, VI = 2.7V 20 µA IIL Low-level input current VCC = MAX, VI = 0.5V –0.1 mA IO current3 ICC Output Supply current (total) VCC = MAX, VO = 2.25V ICCH ICCL VCC = MAX –112 mA VI = 0V –30 1.0 1.8 mA VI = 4.5V 2.0 4.0 mA NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type. 2. All typical values are at VCC = 5V, Tamb = 25°C. 3. The output conditions have been chosen to produce a current that closely approximate one half of the true short-circuit output current, IOS. 1991 Feb 08 3 Philips Semiconductors Product specification Triple 3-input NOR gate 74ALS27 AC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL tPLH tPHL PARAMETER Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF, RL = 500Ω TEST CONDITION Propagation delay nA, nB, nC to nY Waveform 1 MIN MAX 2.0 2.0 15.0 9.0 UNIT ns AC WAVEFORMS For all waveforms, VM = 1.3V. nA, nB, nC VM VM tPHL tPLH VM nY VM SC00018 Waveform 1. Propagation Delay for Data to Output TEST CIRCUIT AND WAVEFORMS VCC NEGATIVE PULSE VIN CL RL AMP (V) VM 10% D.U.T. RT 90% VM VOUT PULSE GENERATOR tw 90% 10% tTHL (tff) tTLH (tr ) tTLH (tr ) tTHL (tf ) 0.3V AMP (V) 90% Test Circuit for Totem-pole Outputs POSITIVE PULSE 90% VM VM 10% 10% tw 0.3V Input Pulse Definition DEFINITIONS: RL = Load resistor; see AC electrical characteristics for value. CL = Load capacitance includes jig and probe capacitance; see AC electrical characteristics for value. RT = Termination resistance should be equal to ZOUT of pulse generators. INPUT PULSE REQUIREMENTS Family Amplitude VM 74ALS 3.5V 1.3V Rep.Rate tw tTLH tTHL 1MHz 500ns 2.0ns 2.0ns SC00005 1991 Feb 08 4 Philips Semiconductors Product specification Triple 3-input NOR gate 74ALS27 DIP14: plastic dual in-line package; 14 leads (300 mil) 1991 Feb 08 5 SOT27-1 Philips Semiconductors Product specification Triple 3-input NOR gate 74ALS27 SO14: plastic small outline package; 14 leads; body width 3.9 mm 1991 Feb 08 6 SOT108-1 Philips Semiconductors Product specification Triple 3-input NOR gate 74ALS27 DEFINITIONS Data Sheet Identification Product Status Definition Objective Specification Formative or in Design This data sheet contains the design target or goal specifications for product development. Specifications may change in any manner without notice. Preliminary Specification Preproduction Product This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Product Specification Full Production This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes at any time without notice, in order to improve design and supply the best possible product. Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. LIFE SUPPORT APPLICATIONS Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices, or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale. Copyright Philips Electronics North America Corporation 1997 All rights reserved. Printed in U.S.A. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 print code Document order number: 1991 Feb 08 7 Date of release: 05-96