INTEGRATED CIRCUITS 74F656A Octal buffer/driver with parity, non-inverting (3-State) Product specification Supersedes data of 1991 Jul 17 IC15 Data Handbook 2000 Jun 30 Philips Semiconductors Product specification 74F656A Octal buffer/driver with parity, non-inverting (3-State) FEATURES DESCRIPTION * Significantly improved AC performance over 74F656 * High impedance NPN base input for reduced loading The 74F656A is an octal buffer and line driver with parity generation/checking designed to be employed as memory address drivers, clock drivers and bus-oriented transmitters/receivers. These parts include parity generator/checker to improve PC board density. (40A in High and Low states) * Ideal in applications where high output drive and light bus loading are required (IIL is 40A vs. FAST std of 600A) * 74F656A combines 74F244 and 74F280A functions in one TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74F656A 6.5ns 64mA package * Non-inverting * 3-State outputs sink 64mA and source 15mA * 24-pin plastic Slim DIP (300mil) package * Inputs on one side and outputs on the other side simplifies PC board layout * Combined functions reduce part count and enhance system performance * Industrial temperature range available (-40C to +85C) ORDERING INFORMATION COMMERCIAL RANGE VCC = 5V 10%, Tamb = 0C to +70C INDUSTRIAL RANGE VCC = 5V 10%, Tamb = -40C to +85C PKG DWG # 24-pin Plastic Slim DIP (300mil) N74F656AN I74F656AN SOT222-1 24-pin Plastic SOL N74F656AD I74F656AD SOT137-1 DESCRIPTION INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS DESCRIPTION 74F(U.L.) HIGH/LOW LOAD VALUE HIGH/LOW D0-D7 Data inputs 2.0/0.066 40A/40A PI Parity input 1.0/0.033 20A/20A OE0, OE1, OE2 Output Enable Inputs (active Low) 1.0/0.033 20A/20A E, O Parity outputs 750/106.7 15mA/64mA Q0-Q7 Data outputs 750/106.7 15mA/64mA NOTE: One (1.0) FAST Unit Load (U.L.) is defined as: 20A in the High state and 0.6mA in the Low state. 2000 Jun 30 2 853-0383 24025 Philips Semiconductors Product specification Octal buffer/driver with parity, non-inverting (3-State) PIN CONFIGURATION OE0 1 24 VCC OE1 2 23 OE2 PI 3 22 O D0 4 21 E D1 5 20 Q0 D2 6 19 Q1 D3 7 18 Q2 D4 8 17 Q3 D5 9 16 Q4 D6 10 15 Q5 D7 11 14 Q6 GND 12 13 Q7 SF01169 LOGIC SYMBOL 3 4 5 6 7 8 9 10 11 D0 D1 D2 D3 D4 D5 D6 D7 PI 1 OE0 2 OE1 23 OE2 VCC=Pin 24 GND=Pin 12 E 21 O 22 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 20 19 18 17 16 15 14 13 SF01171 LOGIC SYMBOL (IEEE/IEC) 2K 3 P3 1 1 2 23 3,5,6,7,8 9,10,11,12 [EVEN] 3,5,6,7,8 9,10,11,12 [ODD] 22 EN4 4 20 Z5 5 6 7 8 9 21 Z6 Z7 Z8 Z9 Z10 4 19 18 17 16 15 10 Z11 14 11 Z12 13 SF01173 2000 Jun 30 3 74F656A Philips Semiconductors Product specification Octal buffer/driver with parity, non-inverting (3-State) 74F656A LOGIC DIAGRAM PI 3 21 E 22 O D0 4 20 Q0 D1 5 19 Q1 D2 6 18 Q2 D3 7 17 Q3 D4 8 16 Q4 D5 9 15 Q5 D6 10 14 Q6 D7 11 13 Q7 OE0 1 OE1 23 OE2 2 VCC = Pin 24 GND = Pin 12 2000 Jun 30 SF01175 4 Philips Semiconductors Product specification Octal buffer/driver with parity, non-inverting (3-State) FUNCTION TABLE FUNCTION TABLE for PARITY OUTPUTS INPUTS OUTPUTS OE0 OE1 OE2 Dn Qn L L L L L PARITY OUTPUTS INPUTS Number of inputs, High (PI, D0-D7) E 0 H L L L L H H Even - 0, 2, 4, 6, 8 H X X X Z Odd - 1, 3, 5, 7, 9 L H X H X X Z Any OEn = High Z Z X H X Z X H L X Z 74F656A = = = = H = High voltage level L = Low voltage level Z = High impedance "off" state High voltage level Low voltage level Don't care High impedance "off" state ABSOLUTE MAXIMUM RATINGS (Operation beyond the limits 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 RATING UNIT VCC Supply voltage PARAMETER -0.5 to +7.0 V VIN Input voltage -0.5 to +7.0 V IIN Input current -30 to +5 mA VOUT Voltage applied to output in High output state -0.5 to +VCC V IOUT Current applied to output in Low output state 128 mA Tamb Operating free-air free air temperature range Tstg Storage temperature range 0 to +70 C -40 to +85 C -65 to +150 C Commercial range Industrial range 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 -15 mA IOL Low-level output current Commercial range Tamb 2000 Jun 30 Operating free-air free air temperature range Industrial range 5 V V 64 mA 0 70 C -40 85 C Philips Semiconductors Product specification Octal buffer/driver with parity, non-inverting (3-State) 74F656A DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL VOH VCC = MIN MIN, VIL = MAX VIH = MIN High-level output voltage IOH 3mA O = -3mA IOH = -15mA VCC = MIN, VIL = MAX VIH = MIN IOZH IOZL Off-state current Low-level voltage applied IOS Short-circuit output current3 V V 100 A 40 A 20 A 80 A Pl, OEn 40 A Dn -40 A -20 A 50 A -50 A IOL O = 64mA 5%VCC Dn Pl, OEn Dn MAX VI = 2 7V VCC = MAX, 2.7V VCC = MAX, MAX VI = 0 0.5V 5V VCC = MAX, VO = 2.7V VCC = MAX, VO = 0.5V VCC = MAX -100 ICCH ICC V -1.2 Pl, OEn Supply current (total) 3.3 -0.73 VCC = MIN, II = IIK VCC = 0.0, VI = 7.0V Off-state current High-level voltage applied 2.0 V Input current at maximum input voltage Low level input current Low-level 2.7 0.55 Input clamp voltage IIL 5%VCC 10%VCC V 0.42 II Industrial range 2.4 V VIK High-level High level input current 10%VCC UNIT MAX 0.55 Low level output voltage Low-level IIH TYP2 MIN 10%VCC VOL O Commercial range LIMITS TEST CONDITIONS1 PARAMETER ICCL VCC = MAX -225 mA 50 80 mA 78 110 mA ICCZ 83 90 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 = 25C. 3. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any sequence of parameter tests, IOS tests should be performed last. AC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER TEST CONDITIONS Tamb = +25C, +5 0V VCC = +5.0V CL = 50pF, RL = 500 Tamb = 0C to +70C +5 0V 10% VCC = +5.0V CL = 50pF, RL = 500 Tamb = -40C to +85C +5 0V 10% VCC = +5.0V CL = 50pF, RL = 500 MIN TYP MAX MIN MAX MIN MAX UNIT tPLH tPHL Propagation delay Dn to Qn Waveform 1 2.0 2.5 4.0 5.5 6.5 7.0 2.0 2.5 7.0 7.5 2.0 2.5 8.0 9.0 ns ns tPLH tPHL Propagation delay Dn to E, O Waveform 1, 2 5.5 5.5 10.0 11.0 13.0 14.5 5.5 5.5 14.0 16.5 4.5 5.5 16.5 18.0 ns ns tPZH tPZL Output enable time to High or Low level Waveform 3 Waveform 4 3.5 4.0 7.0 8.0 10.5 11.0 3.5 4.5 11.5 12.0 3.0 4.0 13.0 13.5 ns ns tPHZ tPLZ Output disable time from High or Low level Waveform 3 Waveform 4 1.5 2.0 4.5 5.0 8.0 8.0 1.5 2.0 9.0 9.0 1.5 1.5 10.0 10.0 ns ns 2000 Jun 30 6 Philips Semiconductors Product specification Octal buffer/driver with parity, non-inverting (3-State) 74F656A AC WAVEFORMS VM Dn VM tPLH VM Dn tPHL tPHL SE, SO, Qn VM VM tPLH SE, SO, Qn VM VM VM SF00965 SF00966 Waveform 1. Propagation Delay, Non-Inverting Outputs VM OEn Waveform 2. Propagation Delay, Inverting Outputs tPZH VM tPZL VOH -0.3V tPHZ SE, SO, Qn, Qn VM OEn VM tPLZ VM SE, SO, Qn, Qn VM 0V VOL +0.3V SF00968 SF00967 Waveform 3. 3-State Output Enable Time to High Level and Output Disable Time from High Level Waveform 4. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level TEST CIRCUIT AND WAVEFORM VCC 7.0V VIN RL VOUT PULSE GENERATOR tw 90% NEGATIVE PULSE VM CL AMP (V) VM 10% D.U.T. RT 90% 10% tTHL (tf ) tTLH (tr ) tTLH (tr ) tTHL (tf ) 0V RL AMP (V) 90% 90% Test Circuit for 3-State Outputs POSITIVE PULSE VM VM 10% TEST tPLZ tPZL All other SWITCH closed closed open 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. 10% tw SWITCH POSITION 0V Input Pulse Definition INPUT PULSE REQUIREMENTS family amplitude VM 74F 3.0V 1.5V rep. rate tw tTLH tTHL 1MHz 500ns 2.5ns 2.5ns SF00777 2000 Jun 30 7 Philips Semiconductors Product specification Octal buffer/driver with parity, non-inverting (3-State) DIP24: plastic dual in-line package; 24 leads (300 mil) 2000 Jun 30 8 74F656A SOT222-1 Philips Semiconductors Product specification Octal buffer/driver with parity, non-inverting (3-State) SO24: plastic small outline package; 24 leads; body width 7.5 mm 2000 Jun 30 9 74F656A SOT137-1 Philips Semiconductors Product specification Octal buffer/driver with parity, non-inverting (3-State) 74F656A Data sheet status Data sheet status Product status Definition [1] Objective specification Development This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. Preliminary specification Qualification 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 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. [1] Please consult the most recently issued datasheet before initiating or completing a design. Definitions Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Disclaimers Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes -- Philips Semiconductors reserves 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. Copyright Philips Electronics North America Corporation 2000 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 Date of release: 06-00 Document order number: yyyy mmm dd 10 9397-750 07278