INTEGRATED CIRCUITS 74LVT126 3.3V Quad buffer (3-State) Product specification Supersedes data of 1995 Dec 21 IC23 Data Handbook 1998 Feb 19 Philips Semiconductors Product specification 3.3V Quad buffer (3-State) 74LVT126 FEATURES DESCRIPTION • Quad bus interface • 3-State buffers • Output capability: +64mA/-32mA • TTL input and output switching levels • Input and output interface capability to systems at 5V supply • Bus-hold data inputs eliminate the need for external pull-up The LVT126 is a high-performance BiCMOS product designed for VCC operation at 3.3V. This device combines low static and dynamic power dissipation with high speed and high output drive. The 74LVT126 device is a quad buffer that is ideal for driving bus lines. The device features four Output Enables (OE0, OE1, OE2, OE3), each controlling one of the 3-State outputs. resistors to hold unused inputs • Live insertion/extraction permitted • No bus current loading when output is tied to 5V bus • Power-up 3-State • Latch-up protection exceeds 500mA per JEDEC Std 17 • ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model QUICK REFERENCE DATA SYMBOL CONDITIONS Tamb = 25°C; GND = 0V PARAMETER tPLH tPHL Propagation delay An to Yn CL = 50pF; VCC = 3.3V CIN Input capacitance VI = 0V or VCC COUT Output capacitance Outputs disabled; VO = 0V or 3.0V ICCZ Total supply current Outputs disabled; VCC = 3.6V TYPICAL UNIT 2.3 2.4 ns 4 pF 8 pF 0.13 mA ORDERING INFORMATION TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER 14-Pin Plastic SO PACKAGES –40°C to +85°C 74LVT126 D 74LVT126 D SOT108-1 14-Pin Plastic SSOP –40°C to +85°C 74LVT126 DB 74LVT126 DB SOT337-1 14-Pin Plastic TSSOP –40°C to +85°C 74LVT126 PW 74LVT126PW DH SOT402-1 PIN DESCRIPTION PIN NUMBER SYMBOL 2, 5, 9, 12 A0 – A3 Data inputs NAME AND FUNCTION Data outputs 3, 6, 8, 11 Y0 – Y3 1, 4, 10, 13 OE0 – OE3 7 GND Ground (0V) 14 VCC Positive supply voltage Output enable inputs PIN CONFIGURATION LOGIC SYMBOL 1 OE0 OE0 1 14 VCC A0 2 13 OE3 Y0 3 12 A3 OE1 4 11 Y3 A1 5 10 OE2 Y1 6 9 A2 GND 7 8 Y2 A0 3 2 Y0 4 OE1 A1 6 5 Y1 10 OE2 A2 8 9 Y2 13 OE3 A3 11 Y3 SV00093 SA00031 1998 Feb 19 12 2 853-1822 18991 Philips Semiconductors Product specification 3.3V Quad buffer (3-State) 74LVT126 LOGIC SYMBOL (IEEE/IEC) FUNCTION TABLE INPUTS 1 EN 1 OEn An Yn H L L H H H L X Z 3 2 4 6 5 10 8 9 H L X Z 13 11 12 OUTPUTS = High voltage level = Low voltage level = Don’t care = High impedance ”off ” state SV00134 ABSOLUTE MAXIMUM RATINGS1, 2 SYMBOL RATING UNIT VCC DC supply voltage PARAMETER –0.5 to +4.6 V VI DC input voltage3 –0.5 to +7.0 V Output in Off or High state –0.5 to +7.0 V Output in Low state 128 mA Out in High State –64 mA VOUT DC output voltage3 IOUT O DC output current CONDITIONS IIK DC input diode current VI < 0 –50 mA IOK DC output diode current VO < 0 –50 mA Tstg Storage temperature range –65 to 150 °C 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 negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. RECOMMENDED OPERATING CONDITIONS SYMBOL VCC PARAMETER LIMITS DC supply voltage UNIT MIN MAX 2.7 3.6 V 0 5.5 V VI Input voltage VIH High-level input voltage VIL Low-level input voltage 0.8 V IOH High-level output current –32 mA Low-level output current 32 Low-level output current; current duty cycle ≤ 50%, f ≥ 1kHz 64 ∆t/∆v Input transition rise or fall rate; outputs enabled 10 ns/V Tamb Operating free-air temperature range +85 °C IOL 1998 Feb 19 2.0 mA –40 3 V Philips Semiconductors Product specification 3.3V Quad buffer (3-State) 74LVT126 DC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL VIK PARAMETER Input clamp voltage Temp = -40°C to +85°C TEST CONDITIONS MIN TYP1 MAX –0.9 –1.2 VCC-0.2 VCC-0.1 VCC = 2.7V; IOH = –8mA 2.4 2.5 VCC = 3.0V; IOH = –32mA 2.0 2.2 VCC = 2.7V; IIK = –18mA VCC = 2.7 to 3.6V; IOH = –100µA VOH VOL High-level output voltage Low-level output voltage 0.1 0.2 VCC = 2.7V; IOL = 24mA 0.3 0.5 VCC = 3.0V; IOL = 16mA 0.25 0.4 VCC = 3.0V; IOL = 32mA 0.3 0.5 0.4 0.55 1 10 II Input In ut leakage current ±0.1 ±1 0.1 1 VCC = 0 or 3.6V; VI = 5.5V All inputs VCC = 3.6V; VI = VCC or GND Control pins VCC = 3.6V; VI = VCC Data pins ins4 VCC = 3.6V; VI = 0 IOFF Output off current VCC = 0V; VI or VO = 0 to 4.5V VCC = 3V; VI = 0.8V IHOLD Bus Hold current A inputs6 –1 -5 1 ±100 75 150 VCC = 3V; VI = 2.0V –75 –150 VCC = 0V to 3.6V; VCC = 3.6V ±500 V V VCC = 2.7V; IOL = 100µA VCC = 3.0V; IOL = 64mA UNIT V µA µA µA Current into an output in the High state when VO > VCC VO = 5.5V; VCC = 3.0V 60 125 µA Power up/down 3-State output current3 VCC ≤ 1.2V; VO = 0.5V to VCC; VI = GND or VCC; OE/OE = Don’t care ±1 ±100 µA IOZH 3-State output high current VCC = 3.6V; VO = 3.0V 1 5 µA IOZL 3-State output low current VCC = 3.6V; VO = 0.5V –1 –5 µA 0.13 0.19 IEX IPU/PD ICCH ICCL VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0 Quiescent supply current ICCZ ∆ICC Additional supply current per input pin2 VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0 2 7 VCC = 3.6V; Outputs Disabled; VI = GND or VCC, IO = 05 0.13 0.19 VCC = 3V to 3.6V; One input at VCC-0.6V, Other inputs at VCC or GND 0.1 0.2 mA mA NOTES: 1. All typical values are at VCC = 3.3V and Tamb = 25°C. 2. This is the increase in supply current for each input at the specified voltage level other than VCC or GND 3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V ± 0.3V a transition time of 100µsec is permitted. This parameter is valid for Tamb = 25°C only. 4. Unused pins at VCC or GND. 5. ICCZ is measured with outputs pulled up to VCC or down to GND. 6. This is the bus hold overdrive current required to force the input to the opposite logic state. AC CHARACTERISTICS GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω, Tamb = –40°C to +85°C. LIMITS SYMBOL PARAMETER VCC = 3.3V ±0.3V WAVEFORM VCC = 2.7V MIN TYP1 MAX MAX UNIT tPLH tPHL Propagation delay An to Yn 1 1.0 1.0 2.3 2.4 3.8 3.9 4.5 4.4 ns tPZH tPZL Output enable time OEn to Yn 2 1.0 1.1 3.6 3.6 5.4 5.2 6.1 5.8 ns tPHZ tPLZ Output disable time OEn to Yn 2 1.0 1.3 2.2 3.6 3.8 5.5 4.3 6.1 ns NOTE: 1. All typical values are at VCC = 3.3V and Tamb = 25°C. 1998 Feb 19 4 Philips Semiconductors Product specification 3.3V Quad buffer (3-State) 74LVT126 AC WAVEFORMS VM = 1.5V, VIN = GND to 3.0V 3V OE INPUT VM 1.5V 1.5V VM INPUT 0V VOH 1.5V tPLZ tPZL tPHL tPLH Yn OUTPUT 3.5V VM VOL + 0.3V 1.5V VOL OUTPUT tPHZ tPZH VOL VOH VOH – 0.3V SA00028 Yn OUTPUT VM Waveform 1. Input (An) to Output (Yn) Propagation Delays 0V SV00094 Waveform 2. 3-State Output Enable and Disable Times TEST CIRCUIT AND WAVEFORMS 6.0V VCC Open VIN VOUT PULSE GENERATOR RL GND tW 90% NEGATIVE PULSE 90% VM VM 10% 10% D.U.T. RT 0V CL tTHL (tF) RL tTLH (tR) tTLH (tR) tTHL (tF) 90% Test Circuit for 3-State Outputs POSITIVE PULSE AMP (V) 90% VM VM 10% 10% tW SWITCH POSITION TEST SWITCH tPLH/tPHL Open tPLZ/tPZL 6V tPHZ/tPZH GND AMP (V) 0V VM = 1.5V Input Pulse Definition INPUT PULSE REQUIREMENTS DEFINITIONS FAMILY RL = Load resistor; see AC CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. 74LVT Amplitude Rep. Rate 2.7V 10MHz tW tR tF 500ns 2.5ns 2.5ns RT = Termination resistance should be equal to ZOUT of pulse generators. SV00092 1998 Feb 19 5 Philips Semiconductors Product specification 3.3V Quad buffer (3-State) 74LVT126 SO14: plastic small outline package; 14 leads; body width 3.9 mm 1998 Feb 19 6 SOT108-1 Philips Semiconductors Product specification 3.3V Quad buffer (3-State) 74LVT126 SSOP14: plastic shrink small outline package; 14 leads; body width 5.3 mm 1998 Feb 19 7 SOT337-1 Philips Semiconductors Product specification 3.3V Quad buffer (3-State) 74LVT126 TSSOP14: plastic thin shrink small outline package; 14 leads; body width 4.4 mm 1998 Feb 19 8 SOT402-1 Philips Semiconductors Product specification 3.3V Quad buffer (3-State) 74LVT126 NOTES 1998 Feb 19 9 Philips Semiconductors Product specification 3.3V Quad buffer (3-State) 74LVT126 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 9397-750-03515