INTEGRATED CIRCUITS 74LVC125A Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-State) Product specification Supersedes data of 1997 Aug 01 IC24 Data Handbook 1998 Apr 28 Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-state) 74LVC125A FEATURES DESCRIPTION • 5-volt tolerant inputs/outputs, for interfacing with 5-volt logic • Supply voltage range of 1.2V to 3.6V • Complies with JEDEC standard no. 8-1A • CMOS low power consumption • Direct interface with TTL levels • High impedance when VCC = 0V The 74LVC125A is a high performance, low-power, low-voltage Si-gate CMOS device and superior to most advanced CMOS compatible TTL families. Inputs can be driven from either 3.3V or 5.0V devices. In 3-state operation, outputs can handle 5V. The 74LVC125A consists of four non-inverting buffers/line drivers with 3-state outputs. The 3-state outputs (nY) are controlled by the output enable input (nOE). A HIGH at nOE causes the outputs to assume a high impedance OFF-state. QUICK REFERENCE DATA GND = 0 V; Tamb = 25°C; tr = tf ≤ 2.5 ns PARAMETER SYMBOL tPHL/tPLH Propagation delayy g nA to nY CI Input capacitance CPD CONDITIONS CL = 50 pF; VCC = 3.3 V Power dissipation capacitance per buffer VCC = 3.3 V Notes 1 and 2 TYPICAL UNIT 30 3.0 ns 5.0 pF 25 pF NOTES: 1. CPD is used to determine the dynamic power dissipation (PD in µW) PD = CPD × VCC2 × fi (CL × VCC2 × fo) where: fi = input frequency in MHz; CL = output load capacity in pF; fo = output frequency in MHz; VCC = supply voltage in V; (CL × VCC2 × fo) = sum of the outputs. 2. The condition is VI = GND to VCC ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA PKG. DWG. # 14-Pin Plastic SO –40°C to +125°C 74LVC125A D 74LVC125A D SOT108-1 14-Pin Plastic SSOP Type II –40°C to +125°C 74LVC125A DB 74LVC125A DB SOT337-1 14-Pin Plastic TSSOP Type I –40°C to +125°C 74LVC125A PW 7LVC125APW DH SOT402-1 1998 Apr 28 2 853-2010 19310 Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-state) 74LVC125A PIN CONFIGURATION FUNCTION TABLE INPUTS OUTPUT 1 14 VCC nOE nA nY 1A 2 13 4OE L L L 1Y 3 12 4A L H H 4 11 4Y H X Z 2A 5 10 3OE 2Y 6 9 3A 7 8 3Y 1OE 2OE GND NOTES: H = HIGH voltage level L = LOW voltage level X = don’t care Z = high impedance OFF-state SV00455 LOGIC SYMBOL (IEEE/IEC) PIN DESCRIPTION 2 PIN NUMBER SYMBOL 1, 4, 10, 13 1OE – 4OE 2, 5, 9, 12 1A – 4A Data inputs 3, 6, 8, 11 1 3 NAME AND FUNCTION 1 EN1 Data enable inputs (active LOW) 5 6 1Y – 4Y Data Outputs 4 7 GND Ground (0 V) 9 14 VCC Positive supply voltage 8 10 LOGIC SYMBOL 12 11 2 1A 1Y 3 13 1 1OE 5 2A 4 2OE 9 3A 10 3OE 12 4A 13 4OE SV00457 2Y 6 3Y 8 4Y 11 SV00456 1998 Apr 28 3 Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-state) 74LVC125A RECOMMENDED OPERATING CONDITIONS LIMITS SYMBOL VCC VI VO Tamb tr, tf PARAMETER CONDITIONS UNIT MIN MAX DC supply voltage (for max. max speed performance) 27 2.7 36 3.6 DC supply voltage (for low-voltage applications) 1.2 3.6 DC input voltage range 0 5.5 DC output voltage range; output HIGH or LOW state 0 VCC DC output voltage range; output 3-State 0 5.5 –40 +85 °C 0 0 20 10 ns/V V Operating ambient temperature range in free-air VCC = 1.2 to 2.7V VCC = 2.7 to 3.6V Input rise and fall times V V ABSOLUTE MAXIMUM RATINGS1 In accordance with the Absolute Maximum Rating System (IEC 134) Voltages are referenced to GND (ground = 0V) SYMBOL VCC PARAMETER CONDITIONS UNIT –0.5 to +6.5 V IIK DC input diode current VI t0 –50 mA VI DC input voltage Note 2 –0.5 to +6.5 V IOK DC output diode current VO uVCC or VO t 0 "50 mA DC output voltage; output HIGH or LOW state Note 2 –0.5 to VCC +0.5 DC output voltage; output 3-State Note 2 –0.5 to 6.5 DC output source or sink current VO = 0 to VCC VO IOUT IGND, ICC Tstg PTOT DC supply voltage RATING DC VCC or GND current Storage temperature range Power dissipation per package – plastic mini-pack (SO) – plastic shrink mini-pack (SSOP and TSSOP) above +70°C derate linearly with 8 mW/K above +60°C derate linearly with 5.5 mW/K V "50 mA "100 mA –65 to +150 °C 500 500 mW 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 input and output voltage ratings may be exceeded if the input and output current ratings are observed. 1998 Apr 28 4 Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-state) 74LVC125A DC ELECTRICAL CHARACTERISTICS Over recommended operating conditions voltages are referenced to GND (ground = 0V) LIMITS SYMBOL PARAMETER TEST CONDITIONS Temp = -40°C to +85°C MIN VIH HIGH level Input voltage VIL LOW level Input voltage VOH O VCC = 1.2V VCC VCC = 2.7 to 3.6V 2.0 TYP1 V VCC = 1.2V GND V VCC = 2.7 to 3.6V HIGH level output voltage 0.8 VCC = 2.7V; VI = VIH or VIL; IO = –12mA VCC*0.5 VCC = 3.0V; VI = VIH or VIL; IO = –100µA VCC*0.2 VCC = 3.0V; VI = VIH or VIL; IO = –18mA VCC*0.6 VCC = 3.0V; VI = VIH or VIL; IO = –24mA VCC*0.8 VCC VCC = 2.7V; VI = VIH or VIL; IO = 12mA VOL GND VCC = 3.0V; VI = VIH or VIL; IO = 24mA II Input leakage current 0.20 V 0.55 "0 1 "0.1 "5 µA VCC = 3.6V; VI = VIH or VIL; VO = 5.5V or GND 0.1 "5 µA VCC = 3 3.6V; 6V; VI = 5 5.5V 5V or GND current2 V 0.40 VCC = 3.0V; VI = VIH or VIL; IO = 100µA LOW level output voltage UNIT MAX IOZ 3-State output OFF-state Ioff Power off leakage supply VCC = 0.0V; VI or VO = 5.5V 0.1 "10 µA ICC Quiescent supply current VCC = 3.6V; VI = VCC or GND; IO = 0 0.1 10 µA Additional quiescent supply current per input pin VCC = 2.7V to 3.6V; VI = VCC –0.6V; IO = 0 5 500 µA ∆ICC NOTE: 1. All typical values are at VCC = 3.3V and Tamb = 25°C. 2. For I/O ports the parameter IOZ includes the input leakage current. AC CHARACTERISTICS GND = 0 V; tr = tf = 2.5 ns; CL = 50 pF; RL = 500 LIMITS SYMBOL PARAMETER VCC = 3.3V ±0.3V WAVEFORM VCC = 2.7V VCC = 1.2V MIN TYP1 MAX MIN MAX TYP UNIT tPHL tPLH Propagation delay nA to nY Figures 1, 3 1.5 3.0 4.8 1.5 5.5 12.0 ns tPZH tPZL 3-State output enable time nOE to nY Figures 2, 3 1.5 3.8 5.7 1.5 6.7 13.0 ns tPHZ tPLZ 3-State output disable time nOE to nY Figures 2, 3 1.5 3.7 5.2 1.5 6.2 8 ns NOTE: 1. These typical values are at VCC = 3.3V and Tamb = 25°C. 1998 Apr 28 5 Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-state) 74LVC125A AC WAVEFORMS TEST CIRCUIT VM = 1.5 V at VCC w 2.7 V; VM = 0.5 VCC at VCC < 2.7 V VOL and VOH are the typical output voltage drop that occur with the output load. S1 VCC 2<VCC Open GND RL=500 Ω VX = VOL + 0.3 V at VCC ≥ 2.7 V VX = VOL + 0.1 V at VCC > 2.7 V VY = VOH – 0.3 V at VCC ≥ 2.7 V VY = VOH – 0.1 V at VCC < 2.7 V VIN VOUT PULSE GENERATOR D.U.T. RT RL=500 Ω CL Vl nA INPUT VM Test Circuit for 3-State Outputs SWITCH POSITION GND t PHL t PLH V OH nY OUTPUT VM V OL SV00459 VI VM tPLZ tPZL VM tPZH tPHZ VY VM outputs enabled outputs disabled outputs enabled SV00458 Figure 2. 3-state enable and disable times. 1998 Apr 28 VIN tPLZ/tPZL 2<VCC t 2.7V 2.7 – 3.6V VCC 2.7V tPHZ/tPZH GND Figure 3. Load circuitry for switching times. VX VOH OUTPUT HIGH-to-OFF OFF-to-HIGH GND VCC Open SW00047 GND VCC OUTPUT LOW-to-OFF OFF-to-LOW VOL SWITCH DEFINITIONS RL = Load resistor CL = Load capacitance includes jig and probe capacitance RT = Termination resistance should be equal to ZOUT of pulse generators. Figure 1. Input (nA) to output (nY) propagation delays. nOE Input TEST tPLH/tPHL 6 Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-State) SO14: plastic small outline package; 14 leads; body width 3.9 mm 1998 Apr 28 7 74LVC125A SOT108-1 Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-State) SSOP14: plastic shrink small outline package; 14 leads; body width 5.3 mm 1998 Apr 28 8 74LVC125A SOT337-1 Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-State) TSSOP14: plastic thin shrink small outline package; 14 leads; body width 4.4 mm 1998 Apr 28 9 74LVC125A SOT402-1 Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-State) 74LVC125A 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 9397-750-04491