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| INTEGRATED CIRCUITS 74ALS139 Dual 1-of-4 decoder/demultiplexer Product specification IC05 Data Handbook 1991 Feb 08 Philips Semiconductors Philips Semiconductors Product specification Dual 1-of-4 decoder/demultiplexer 74ALS139 FEATURES * Demultiplexing capability * Two independent 1-of-4 decoders * Multi-function capability DESCRIPTION The 74ALS139 is a dual 1-of-4 decoder/demultiplexer. This device has two independent decoders, each accepting two binary weighted inputs (A0n, A1n) and providing four mutually exclusive active-Low outputs (Q0n-Q3n). Each decoder has an active-Low enable (E). When E is High, every output is forced High. The enable can be used as the data input for a 1-of-4 demultiplexer application. TYPICAL SUPPLY CURRENT (TOTAL) 4mA PIN CONFIGURATION Ea A0a A1a Q0a Q1a Q2a Q3a GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC Eb A0b A1b Q0b Q1b Q2b Q3b SF00129 TYPE 74ALS139 TYPICAL PROPAGATION DELAY 6.0ns ORDERING INFORMATION ORDER CODE DESCRIPTION COMMERCIAL RANGE VCC = 5V 10%, Tamb = 0C to +70C 74ALS139N 74ALS139D DRAWING NUMBER 16-pin plastic DIP 16-pin plastic SO SOT38-4 SOT109-1 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS A0n, A1n Ea, Eb Q0n, Q1n Address inputs Enable inputs (active-Low) Data outputs DESCRIPTION 74ALS (U.L.) HIGH/LOW 1.0/1.0 1.0/1.0 20/80 LOAD VALUE HIGH/LOW 20A/0.1mA 20A/0.1mA 0.4mA/8mA NOTE: One (1.0) ALS unit load is defined as: 20A in the High state and 0.1mA in the Low state. LOGIC SYMBOL 1 2 3 15 14 13 IEC/IEEE SYMBOL DEMUX 0 3 1 0 G 3 0 1 2 5 6 7 12 11 10 2 4 Ea A0a A1a Eb A0b A1b DECODER a Q0a Q1a Q2a Q3a Q0b DECODER b Q1b Q2b Q3b 1 14 13 3 4 VCC = Pin 16 GND = Pin 8 5 6 7 12 11 10 9 15 9 SF00130 SF00131 1991 Feb 08 2 853-1426 01670 Philips Semiconductors Product specification Dual 1-of-4 decoder/demultiplexer 74ALS139 LOGIC DIAGRAM Ea 1 A0a A1a 2 3 Eb 15 A0b A1b 14 13 FUNCTION TABLE INPUTS E H L L L L A0 X L H L H A1 X L L H H Q0 H L H H H OUTPUTS Q1 H H L H H Q2 H H H L H Q3 H H H H L H = High voltage level L = Low voltage level X = Don't care 4 Q0a VCC= Pin 16 GND = Pin 8 5 Q1a 6 Q2a 7 Q3a 12 11 Q1b Q0b 10 9 Q2b Q3b SF00132 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.) SYMBOL VCC VIN IIN VOUT IOUT Tamb Tstg Supply voltage Input voltage Input current Voltage applied to output in High output state Current applied to output in Low output state Operating free-air temperature range Storage temperature range PARAMETER RATING -0.5 to +7.0 -0.5 to +7.0 -30 to +5 -0.5 to VCC 16 0 to +70 -65 to +150 UNIT V V mA V mA C C RECOMMENDED OPERATING CONDITIONS LIMITS SYMBOL VCC VIH VIL IIk IOH IOL Tamb Supply voltage High-level input voltage Low-level input voltage Input clamp current High-level output current Low-level output current Operating free-air temperature range 0 PARAMETER MIN 4.5 2.0 0.8 -18 -0.4 8 +70 NOM 5.0 MAX 5.5 V V V mA mA mA C UNIT 1991 Feb 08 3 Philips Semiconductors Product specification Dual 1-of-4 decoder/demultiplexer 74ALS139 DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL VOH VO OL VIK II IIH IIL IO ICC PARAMETER High-level output voltage Low-level Low level output voltage Input clamp voltage Input current at maximum input voltage High-level input current Low-level input current Output current3 TEST CONDITIONS1 MIN VCC10%, VIL = MAX, VIH = MIN, IOH = -0.4mA VCC = MIN, VIL = MAX, , , VIH = MIN VCC = MIN, II = IIK VCC = MAX, VI = 7.0V VCC = MAX, VI = 2.7V VCC = MAX, VI = 0.5V VCC = MAX, VO = 2.25V VCC = MAX -30 4.0 IOL = 4mA IOL = 8mA VCC - 2 0.25 0.35 -0.73 0.40 0.50 -1.5 0.1 20 -0.1 -112 7.0 LIMITS TYP2 UNIT MAX V V V V mA A mA mA mA Supply current (total) 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 = 25C. 3. The output conditions have been chosen to produce a current that closely approximate one half of the true short-circuit output current, IOS. AC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER TEST CONDITION Tamb = 0C to +70C VCC = +5.0V 10% CL = 50pF, RL = 500 MIN tPLH tPHL tPLH tPHL Propagation delay An to Qn Propagation delay En to Qn Waveform 1, 2 Waveform 2 3.0 3.0 3.0 3.0 MAX 10.0 12.0 8.0 8.0 ns ns UNIT AC WAVEFORMS For all waveforms, VM = 1.3V. An VM tPHL VM tPLH An, En VM tPHL VM tPLH Qn VM VM Qn VM VM SF00133 SF00134 Waveform 1. Propagation Delay for Inverting Outputs Waveform 2. Propagation Delay for Non-inverting Outputs 1991 Feb 08 4 Philips Semiconductors Product specification Dual 1-of-4 decoder/demultiplexer 74ALS139 TEST CIRCUIT AND WAVEFORMS VCC NEGATIVE PULSE VIN PULSE GENERATOR RT D.U.T. VOUT 90% VM 10% tTHL (tff) CL RL tw VM 10% tTLH (tr ) 0.3V 90% AMP (V) tTLH (tr ) 90% tTHL (tf ) AMP (V) 90% VM tw 10% 0.3V Test Circuit for Totem-pole Outputs POSITIVE PULSE 10% VM 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 Definition INPUT PULSE REQUIREMENTS Family Amplitude VM 74ALS 3.5V 1.3V Rep.Rate 1MHz tw 500ns tTLH 2.0ns tTHL 2.0ns SC00005 1991 Feb 08 5 Philips Semiconductors Product specification Dual 1-of-4 decoder/demultiplexer 74ALS139 DIP16: plastic dual in-line package; 16 leads (300 mil) SOT38-4 1991 Feb 08 6 Philips Semiconductors Product specification Dual 1-of-4 decoder/demultiplexer 74ALS139 SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 1991 Feb 08 7 Philips Semiconductors Product specification Dual 1-of-4 decoder/demultiplexer 74ALS139 DEFINITIONS Data Sheet Identification Objective Specification Product Status Formative or in Design Definition This data sheet contains the design target or goal specifications for product development. Specifications may change in any manner without notice. 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. 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. Preliminary Specification Preproduction Product Product Specification Full Production 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. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088-3409 Telephone 800-234-7381 (c) Copyright Philips Electronics North America Corporation 1997 All rights reserved. Printed in U.S.A. Philips Semiconductors 1991 Feb 08 8 |
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