INTEGRATED CIRCUITS 74ALS620A/74ALS620A–1 74ALS623A/74ALS623A–1 Transceivers Product specification IC05 Data Handbook 1991 Feb 08 Philips Semiconductors Product specification 74ALS620A/74ALS620A-1 74ALS623A/74ALS623A-1 Transceivers 74ALS620A/74ALS620A-1 Octal bus transceiver, inverting (3-State) 74ALS623A/74ALS623A-1 Octal bus transceiver, non-inverting (3-State) FEATURES DESCRIPTION • Octal bidirectional bus interface • 3-State buffer outputs sink 24mA and source 15mA • The -1 version sinks 48mA IOL within the +5% VCC range TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74ALS620A/620A-1 4.0ns 33mA 74ALS623A/623A-1 4.0ns 38mA TYPE The 74ALS620A and 74ALS623A are octal transceiver featuring 3-State bus compatible outputs in both transmit and receive directions. The 74ALS620A is an inverting version of the 74ALS623A. The outputs are capable of sinking 24mA and sourcing up to 15mA, providing very good capacitive drive characteristics. The outputs for the 74ALS620A-1 and 74ALS623A are capable of sinking up to 48mA when within the ±5% VCC range. These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control function implementation allows for maximum flexibility in timing. These devices allow data transmission from the A bus to the B bus or from B bus to A bus, depending on the logic levels at the enable inputs (OEBA and OEAB). The enable inputs can be used to disable the device so that the buses are effectively isolated. The dual-enable configuration gives the 74ALS620A and 74ALS623A the capability to store data by the simultaneous enabling of OEBA and OEAB. Each output reinforces its input in this transceiver configuration. Thus when both control inputs are enabled and all other data sources to the two sets of the bus lines are at high impedance, both sets of the bus lines (16 in all) will remain at their last states. ORDERING INFORMATION ORDER CODE DRAWING NUMBER DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C 20-pin plastic DIP 74ALS620AN, 74ALS620A-1N 74ALS623AN, 74ALS623A-1N SOT146-1 20-pin plastic SOL 74ALS620AD, 74ALS620A-1D 74ALS623AD, 74ALS623A-1D SOT163-1 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS DESCRIPTION A0 – A7, B0 – B7 Data inputs OEBA, OEAB 74ALS (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW 1.0/1.0 20µA/0.1mA Output Enable inputs 1.0/1.0 20µA/0.1mA A0 – A7, B0 – B7 Data outputs 750/240 15mA/24mA A0 – A7, B0 – B7 Data outputs (-1 version) 750/480 15mA/48mA NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state. PIN CONFIGURATION – 74ALS620A/74ALS620A-1 PIN CONFIGURATION – 74ALS623A/74ALS623A-1 OEAB 1 20 VCC OEAB 1 20 VCC A0 2 19 OEBA A0 2 19 OEBA A1 3 18 B0 A1 3 18 B0 A2 4 17 B1 A2 4 17 B1 A3 5 16 B2 A3 5 16 B2 A4 6 15 B3 A4 6 15 B3 A5 7 14 B4 A5 7 14 B4 A6 8 13 B5 A6 8 13 B5 A7 9 12 B6 A7 9 12 B6 GND 10 11 B7 GND 10 SC00101 1991 Feb 08 11 B7 SC00102 2 853–0020 01670 Philips Semiconductors Product specification 74ALS620A/74ALS620A-1 74ALS623A/74ALS623A-1 Transceivers LOGIC SYMBOL – 74ALS620A/74ALS620A-1 LOGIC SYMBOL – 74ALS623A/74ALS623A-1 2 3 4 5 6 7 8 9 2 3 4 5 6 7 8 9 A0 A1 A2 A3 A4 A5 A6 A7 A0 A1 A2 A3 A4 A5 A6 A7 B0 B1 B2 B3 B4 B5 B6 B7 18 17 16 15 14 13 12 11 1 OEAB 1 OEAB 19 OEBA 19 OEBA B0 B1 B2 B3 B4 B5 B6 B7 18 17 16 15 14 13 12 11 VCC = Pin 20 GND = Pin 10 VCC = Pin 20 GND = Pin 10 SC00103 IEC/IEEE SYMBOL – 74ALS620A/74ALS620A-1 1 19 2 SC00104 IEC/IEEE SYMBOL – 74ALS623A/74ALS623A-1 1 EN1 19 EN2 EN2 18 2 3 17 3 17 4 16 4 16 5 15 5 15 6 14 6 14 7 13 7 13 8 12 8 12 9 11 9 11 1 2 18 1 2 SC00105 1991 Feb 08 EN1 SC00106 3 Philips Semiconductors Product specification 74ALS620A/74ALS620A-1 74ALS623A/74ALS623A-1 Transceivers LOGIC DIAGRAM – 74ALS620A/74ALS620A-1 OEBA OEAB A0 A1 A2 A3 A4 A5 A6 A7 LOGIC DIAGRAM – 74ALS623A/74ALS623A-1 19 OEBA 1 OEAB 2 18 3 17 4 16 5 15 6 14 7 13 8 12 9 11 VCC = Pin 20 GND = Pin 10 B0 A0 B1 A1 B2 A2 B3 A3 B4 A4 B5 A5 B6 A6 B7 A7 19 1 2 18 3 17 4 16 5 15 6 14 7 13 8 12 9 11 B0 B1 B2 B3 B4 B5 B6 B7 VCC = Pin 20 GND = Pin 10 SC00107 SC00108 FUNCTION TABLE INPUTS H L X Z = = = = OPERATING MODES OEBA OEAB 74ALS620A 74ALS623A L L B data to A Bus B data to A Bus L H A data to B Bus A data to B Bus H L Z Z L H B data to A Bus B data to A Bus L H A data to B Bus A data to B Bus High voltage level Low voltage level Don’t care High impedance “off” state 1991 Feb 08 4 Philips Semiconductors Product specification 74ALS620A/74ALS620A-1 74ALS623A/74ALS623A-1 Transceivers 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 All versions 48 mA -1 version 96 mA 0 to +70 °C –65 to +150 °C VOUT Voltage applied to output in High output state IOUT O Current applied to output in Low output state Tamb Operating free-air temperature range Tstg Storage temperature range RECOMMENDED OPERATING CONDITIONS LIMITS PARAMETER SYMBOL 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 IOL O Tamb Operating free-air temperature range 1991 Feb 08 –15 mA 24 mA -1 version 48 1 mA +70 °C 0 5 V All versions Low level output current Low-level NOTE: 1. The 48mA limit applies only under the condition of VCC = 5.0V ±5%. V Philips Semiconductors Product specification 74ALS620A/74ALS620A-1 74ALS623A/74ALS623A-1 Transceivers DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL LIMITS TEST CONDITIONS1 PARAMETER MIN VOH VCC = ±10%,, VIL = MAX,, VIH = MIN High-level High level out output ut voltage VCC = MIN, VIL = MAX, VIH = MIN VCC = MIN,, VIL = MAX,, VIH = MIN All versions VOL Low-level output voltage VCC = 4.75V, VIL = MAX, VIH = MIN –1 versions VIK Input clamp voltage II Input current at maximum in input ut voltage IIH IOH = –0.4mA VCC – 2 IOH = –3mA 2.4 IOH = –15mA 2.0 TYP2 UNIT MAX V 3.2 V V IOL = 12mA 0.25 0.40 V IOL = 24mA 0.35 0.50 V IOL = 48mA 0.35 0.50 V –0.73 –1.5 V VCC = MIN, II = IIK OEBA or OEAB VCC = MAX, VI = 7.0V 0.1 mA A or B ports VCC = MAX, VI = 5.5V 0.1 mA High-level input current3 VCC = MAX, VI = 2.7V 20 µA IIL Low-level input current3 VCC = MAX, VI = 0.4V –0.1 mA IO Output current4 VCC = MAX, VO = 2.25V –112 mA 24 34 mA 42 49 mA 45 52 mA 24 43 mA 41 50 mA 46 55 mA ICCH S 74ALS620A 74ALS620A 1 74ALS620A-1 ICC ICCL VCC = MAX ICCZ Supply current (total) ICCH 74ALS623A 74ALS623A 1 74ALS623A-1 ICCL VCC = MAX ICCZ –30 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. For I/O ports, the parameter IIH and IIL include the off-state current. 4. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. 1991 Feb 08 6 Philips Semiconductors Product specification 74ALS620A/74ALS620A-1 74ALS623A/74ALS623A-1 Transceivers AC ELECTRICAL CHARACTERISTICS FOR 74ALS620A/74ALS620A-1 LIMITS SYMBOL PARAMETER TEST CONDITION Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF, RL = 500Ω MIN MAX UNIT tPLH tPHL Propagation delay An to Bn, Bn to An Waveform 1 2.0 2.0 10.0 10.0 ns tPZH tPZL Output enable time OEBA to An Waveform 3 Waveform 4 2.0 3.0 17.0 25.0 ns tPHZ tPLZ Output disable time OEBA to An Waveform 3 Waveform 4 2.0 2.0 12.0 18.0 ns tPZH tPZL Output enable time OEAB to Bn Waveform 3 Waveform 4 2.0 3.0 18.0 25.0 ns tPHZ tPLZ Output disable time OEAB to Bn Waveform 3 Waveform 4 2.0 3.0 12.0 18.0 ns AC ELECTRICAL CHARACTERISTICS FOR 74ALS623A/74ALS623A-1 LIMITS SYMBOL PARAMETER TEST CONDITION Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF, RL = 500Ω MIN MAX UNIT tPLH tPHL Propagation delay An to Bn, Bn to An Waveform 2 2.0 2.0 13.0 11.0 ns tPZH tPZL Output enable time OEBA to An Waveform 3 Waveform 4 2.0 3.0 22.0 22.0 ns tPHZ tPLZ Output disable time OEBA to An Waveform 3 Waveform 4 2.0 2.0 16.0 19.0 ns tPZH tPZL Output enable time OEAB to Bn Waveform 3 Waveform 4 2.0 3.0 22.0 22.0 ns tPHZ tPLZ Output disable time OEAB to Bn Waveform 3 Waveform 4 2.0 2.0 16.0 19.0 ns 1991 Feb 08 7 Philips Semiconductors Product specification 74ALS620A/74ALS620A-1 74ALS623A/74ALS623A-1 Transceivers AC WAVEFORMS For all waveforms, VM = 1.3V. An, Bn An, Bn VM VM tPHL tPLH VM Bn, An VM VM tPLH VM tPHL VM Bn, An VM SF00773 SF00202 Waveform 2. Waveform 1. Propagation Delay for Inverting Outputs Propagation Delay for Non-inverting Outputs OEBA OEBA VM VM VM VM OEAB OEAB tPZH VOH -0.3V tPHZ An or Bn tPZL tPLZ VM An or Bn VM 0V VOL +0.3V SF00412 SF00413 Waveform 3. 3-State Output Enable Time to High Level and Disable Time from High Level Waveform 4. 3-State Output Enable Time to Low Level and Disable Time from Low Level TEST CIRCUIT AND WAVEFORMS VCC 7.0V VIN VOUT PULSE GENERATOR tw 90% NEGATIVE PULSE 10% RL CL RL AMP (V) VM VM D.U.T. RT 90% 10% tTHL (tff) tTLH (tr ) tTLH (tr ) tTHL (tf ) 0.3V AMP (V) 90% Test Circuit for 3-State Outputs POSITIVE PULSE VM VM 10% 10% tw SWITCH POSITION TEST SWITCH closed tPLZ, tPZL All other 90% 0.3V Input Pulse Definition open INPUT PULSE REQUIREMENTS Family Amplitude 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. 74ALS 3.5V 1.3V Rep.Rate tw tTLH tTHL 1MHz 500ns 2.0ns 2.0ns SC00072 1991 Feb 08 8 Philips Semiconductors Product specification 74ALS620A/74ALS620A–1 74ALS623A/74ALS623A–1 Transceivers DIP20: plastic dual in-line package; 20 leads (300 mil) 1991 Feb 08 9 SOT146-1 Philips Semiconductors Product specification 74ALS620A/74ALS620A–1 74ALS623A/74ALS623A–1 Transceivers SO20: plastic small outline package; 20 leads; body width 7.5 mm 1991 Feb 08 10 SOT163-1 Philips Semiconductors Product specification 74ALS620A/74ALS620A–1 74ALS623A/74ALS623A–1 Transceivers 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 1991 Feb 08 11