INTEGRATED CIRCUITS 74ABT244 Octal buffer/line driver (3-State) Product specification Supersedes data of 1995 Sep 06 IC23 Data Handbook 1998 Jan 16 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 FEATURES DESCRIPTION • Octal bus interface • 3-State buffers • Output capability: +64mA/–32mA • Latch-up protection exceeds 500mA per Jedec Std 17 • ESD protection exceeds 2000 V per MIL STD 883 Method 3015 The 74ABT244 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. The 74ABT244 device is an octal buffer that is ideal for driving bus lines. The device features two Output Enables (1OE, 2OE), each controlling four of the 3-State outputs. and 200 V per Machine Model • Power-up 3-State • Live insertion capacity • Inputs are disabled during 3-State mode QUICK REFERENCE DATA SYMBOL CONDITIONS Tamb = 25°C; GND = 0V PARAMETER TYPICAL UNIT 2.9 ns tPLH tPHL Propagation delay An to Yn CL = 50pF; VCC = 5V CIN Input capacitance VI = 0V or VCC 4 pF COUT Output capacitance Outputs disabled; VO = 0V or VCC 7 pF ICCZ Total supply current Outputs disabled; VCC =5.5V 50 µA ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 20-Pin Plastic DIP –40°C to +85°C 74ABT244 N 74ABT244 N SOT146-1 20-Pin plastic SO –40°C to +85°C 74ABT244 D 74ABT244 D SOT163-1 20-Pin Plastic SSOP Type II –40°C to +85°C 74ABT244 DB 74ABT244 DB SOT339-1 20-Pin Plastic TSSOP Type I –40°C to +85°C 74ABT244 PW 74ABT244PW DH SOT360-1 PIN CONFIGURATION PIN DESCRIPTION PIN NUMBER SYMBOL NAME AND FUNCTION 2, 4, 6, 8 1A0 – 1A3 Data inputs 11, 13, 15, 17 2A0 – 2A3 Data inputs 18, 16, 14, 12 1Y0 – 1Y3 Data outputs 1OE 1 20 VCC 1A0 2 19 2OE 2Y0 3 18 1Y0 1A1 4 17 2A0 9, 7, 5, 3 2Y0 – 2Y3 Data outputs 2Y1 5 16 1Y1 1, 19 1OE, 2OE Output enables 1A2 6 15 2A1 10 GND Ground (0V) 2Y2 7 14 1Y2 1A3 8 13 2A2 20 VCC Positive supply voltage 2Y3 9 12 1Y3 11 2A3 GND 10 SA00148 1998 Jan 16 2 853–1444 18867 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 LOGIC SYMBOL LOGIC SYMBOL (IEEE/IEC) 2 1A0 1Y0 4 1A1 1Y1 1A2 1Y2 18 1 EN 6 8 1Y3 1A3 16 14 12 1 1OE 2A3 2Y3 2A2 2Y2 15 2A1 2Y1 17 2A0 2Y0 11 13 19 9 2 18 4 16 6 14 8 12 19 EN 7 11 9 13 7 5 3 2OE 15 5 17 3 SA00149 SA00150 FUNCTION TABLE INPUTS H L X Z OUTPUTS 1OE 1An 2OE 2An 1Yn 2Yn L L L L L L L H L H H H H X H X Z Z = = = = High voltage level Low voltage level Don’t care High impedance “off ” state ABSOLUTE MAXIMUM RATINGS1, 2 SYMBOL VCC IIK PARAMETER CONDITIONS RATING UNIT –0.5 to +7.0 V –18 mA –1.2 to +7.0 V VO < 0 –50 mA output in Off or High state –0.5 to +5.5 V output in Low state 128 mA –65 to 150 °C DC supply voltage DC input diode current VI < 0 voltage3 VI DC input IOK DC output diode current voltage3 VOUT DC output IOUT DC output current Tstg Storage temperature range NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C. 3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 1998 Jan 16 3 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 RECOMMENDED OPERATING CONDITIONS LIMITS SYMBOL VCC PARAMETER UNIT DC supply voltage Min Max 4.5 5.5 V 0 VCC V VI Input voltage VIH High-level input voltage VIL Low-level Input voltage 0.8 V IOH High-level output current –32 mA IOL Low-level output current 64 mA 0 5 ns/V –40 +85 °C 2.0 ∆t/∆v Input transition rise or fall rate Tamb Operating free-air temperature range V DC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER TEST CONDITIONS Tamb = –40°C to +85°C Tamb = +25°C Min Max –0.9 –1.2 VIK Input clamp voltage VOH High-level output voltage VOL Low-level output voltage VCC = 4.5V; IOL = 64mA; VI = VIL or VIH 0.42 Input leakage current VCC = 5.5V; VI = GND or 5.5V ±0.01 Power-off leakage current VCC = 0.0V; VO or VI ≤ 4.5V ±5.0 Power-up/down 3-State output current3 VCC = 2.0V; VO = 0.5V; VI = GND or VCC; V OE = Don’t care ±5.0 ±50 IOZH 3-State output High current VCC = 5.5V; VO = 2.7V; VI = VIL or VIH 5.0 IOZL 3-State output Low current VCC = 5.5V; VO = 0.5V; VI = VIL or VIH –5.0 ICEX Output HIgh leakage current VCC = 5.5V; VO = 5.5V; VI = GND or VCC IO Short-circuit output current1 VCC = 5.5V; VO = 2.5V II IOFF IPU/PD ICCH ICCL Quiescent supply su ly current ICCZ ∆ICC Additional supply current per input pin2 VCC = 4.5V; IIK = –18mA Typ Min UNIT Max –1.2 V VCC = 4.5V; IOH = –3mA; VI = VIL or VIH 2.5 2.9 2.5 V VCC = 5.0V; IOH = –3mA; VI = VIL or VIH 3.0 3.4 3.0 V VCC = 4.5V; IOH = –32mA; VI = VIL or VIH 2.0 2.4 2.0 0.55 V 0.55 V ±1.0 ±1.0 µA ±100 ±100 µA ±50 µA 50 50 µA –50 –50 µA 50 µA –180 mA 250 250 µA 24 30 30 mA 50 250 250 µA Outputs enabled, one data input at 3.4V, other inputs at VCC or GND; VCC = 5.5V 0.5 1.5 1.5 mA Outputs 3-State, one data input at 3.4V, other inputs at VCC or GND; VCC = 5.5V 50 250 250 µA Outputs 3-State, one enable input at 3.4V, other inputs at VCC or GND; VCC = 5.5V 0.5 1.5 1.5 mA 5.0 50 –100 –180 VCC = 5.5V; Outputs High, VI = GND or VCC 50 VCC = 5.5V; Outputs Low, VI = GND or VCC VCC = 5.5V; Outputs 3-State; VI = GND or VCC –40 –40 NOTES: 1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second. 2. This is the increase in supply current for each input at 3.4V. 3. This parameter is valid for any VCC between 0V and 2.1V with a transition time of up to 10msec. For VCC = 2.1V to VCC = 5V 10%, a transition time of up to 100µsec is permitted. 1998 Jan 16 4 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 AC CHARACTERISTICS GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω 74ABT244 SYMBOL PARAMETER Tamb = +25°C VCC = +5.0V WAVEFORM Tamb = –40°C to +85°C VCC = +5.0V ±0.5V Min Typ Max Min Max UNIT tPLH tPHL Propagation delay An to Yn 1 1.0 1.0 2.6 2.9 4.1 4.2 1.0 1.0 4.6 4.6 ns tPZH tPZL Output enable time to High and Low level 2 1.1 2.1 3.1 4.1 4.6 5.6 1.1 2.1 5.1 6.1 ns tPHZ tPLZ Output disable time from High and Low level 2 2.1 1.7 4.1 2.7 5.6 5.2 2.1 1.7 6.6 5.7 ns AC WAVEFORMS VM = 1.5V, VIN = GND to 3.0V 3V 3V Output Control (Low-level enabling 1.5V 1.5V INPUT 1.5 V 1.5 V 0V 3.5V VOH 1.5V 0V tPLZ tPZL tPHL tPLH Output Waveform 1 S1 at 7 V (see Note) 1.5V OUTPUT 1.5 V VOL Output Waveform 2 S1 at Open (see Note) SA00028 Waveform 1. Waveforms Showing the Input (An) to Output (Yn) Propagation Delays VOL + 0.3V VOL tPHZ tPZH VOH VOH – 0.3V 1.5 V 0V Note: Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. SA00029 Waveform 2. Waveforms Showing the 3-State Output Enable and Disable Times TEST CIRCUIT AND WAVEFORMS 7V 500 Ω From Output Under Test S1 Open GND 500 Ω CL = 50 pF Load Circuit TEST S1 tpd open tPLZ/tPZL 7V tPHZ/tPZH open DEFINITIONS Load capacitance includes jig and probe capacitance; CL = see AC CHARACTERISTICS for value. SA00012 1998 Jan 16 5 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 DIP20: plastic dual in-line package; 20 leads (300 mil) 1998 Jan 16 6 SOT146-1 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 SO20: plastic small outline package; 20 leads; body width 7.5 mm 1998 Jan 16 7 SOT163-1 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm 1998 Jan 16 8 SOT339-1 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm 1998 Jan 16 9 SOT360-1 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 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 chages 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 1998 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: yyyy mmm dd 10 Date of release: 05-96 9397-750-03465