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| TC74VHCV245FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHCV245FT,TC74VHCV245FK Octal Schmitt Bus Transceiver The TC74VHCV245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate CMOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. It is intended for two-way asynchronous communication between data busses. The direction of data transmission is determined by the level of the DIR input. The enable input ( G ) can be used to disable the device so that the busses are effectively isolated. Input pin and bus terminal have hysteresis between the positive-going and negative-going thresholds. Thus the TC74VHCV245 is capable of squaring up transitions of slowly changing input signals and provides an improved noise immunity. Input protection and output circuit ensure that 0 to 5.5 V can be applied to the input and output (Note) pins without regard to the supply voltage. These structure prevents device destruction due to mismatched supply and input/output voltages such as battery back up, etc. Note: Output in off-state. TC74VHCV245FT TC74VHCV245FK Features (Note) * * * * * * * High speed: tpd = 3.8 ns (typ.) at VCC = 5 V Low power dissipation: ICC = 2 A (max) at Ta = 25C Wide operating voltage range: VCC (opr) = 1.8 V to 5.5 V Ouput current: |IOH|/IOL = 16 mA (min) (VCC = 4.5 V) Available in TSSOP and VSSOP (US) Power-down protection provided on all inputs and outputs Pin and function compatible with the 74 series (74AC/VHC/HC/F/ALS/LS etc.) 245 type Weight TSSOP20-P-0044-0.65A VSSOP20-P-0030-0.50 : 0.08 g ( typ.) : 0.03 g ( typ.) Note: Do not apply a signal to any bus pins when it is in the output mode. Damage may result. All floating (high impedance) bus pins must have their input levels fixed by means of pull-up or pull-down resistors. 1 2010-07-09 TC74VHCV245FT/FK Pin Assignment DIR A1 A2 A3 A4 A5 A6 A7 A8 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 (top view) VCC G B1 B2 B3 B4 B5 B6 B7 B8 GND 10 Truth Table Inputs Function G L L H DIR L H X A Bus Output Input Z B Bus Input Output Output A=B B=A Z X: Don't care Z: High impedance 2 2010-07-09 TC74VHCV245FT/FK Absolute Maximum Ratings (Note 1) Characteristics Power supply voltage DC iInput voltage (DIR, G ) DC bus I/O voltage Input diode current Output diode current DC output current Power dissipation DC VCC/ground current Storage temperature Symbol VCC VIN VI/O IIK IOK IOUT PD ICC/IGND Tstg Rating -0.5 to 7.0 -0.5 to 7.0 -0.5 to 7.0 Unit V V (Note 2) (Note 3) V mA (Note 4) mA mA mW mA C -0.5 to VCC + 0.5 -50 50 50 180 100 -65 to 150 Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even destruction. Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook ("Handling Precautions"/"Derating Concept and Methods") and individual reliability data (i.e. reliability test report and estimated failure rate, etc). Note 2: off-state Note 3: High or low state. IOUT absolute maximum rating must be observed. Note 4: VOUT < GND, VOUT > VCC Operating Ranges (Note 1) Characteristics Power supply voltage iInput voltage (DIR, G ) Bus I/O voltage Operating temperature Input rise and fall time Symbol VCC VIN VI/O Topr dt/dv Rating 1.8 to 5.5 0 to 5.5 0 to 5.5 0 to VCC -40 to 85 Unit V V (Note 2) (Note 3) V C ms/V 0 to 20(Vcc=3.3 0.3V) 0 to 1(Vcc=5 0.5V) Note 1: The operating ranges are required to ensure the normal operation of the device. Unused inputs and bus inputs must be tied to either VCC or GND. Please connect both bus inputs and the bus outputs with VCC or GND when the I/O of the bus terminal changes by the function. In this case, please note that the output is not short-circuited. Note 2: off-state Note 3: High or low state 3 2010-07-09 TC74VHCV245FT/FK Electrical Characteristics DC Characteristics Test Condition Characteristics Symbol VCC (V) 1.8 2.3 3.0 4.5 5.5 1.8 2.3 3.0 4.5 5.5 1.8 2.3 3.0 4.5 5.5 1.8 3.0 4.5 3.0 4.5 1.8 3.0 4.5 3.0 4.5 1.8 to 5.5 0 0 to 5.5 5.5 Min 0.15 0.45 0.90 1.35 1.65 0.15 0.20 0.30 0.40 0.50 1.7 2.9 4.4 2.58 3.94 Ta = 25C Typ. 1.8 3.0 4.5 0.0 0.0 0.0 Max 1.65 1.85 2.20 3.15 3.85 1.05 1.10 1.20 1.40 1.60 0.1 0.1 0.1 0.36 0.44 0.5 0.5 0.1 2.0 Ta = -40 to 85C Min 0.15 0.45 0.90 1.35 1.65 0.15 0.20 0.30 0.40 0.50 1.7 2.9 4.4 2.48 3.80 Max 1.65 1.85 2.20 3.15 3.85 1.05 1.10 1.20 1.40 1.60 0.1 0.1 0.1 0.44 0.55 5.0 5.0 1.0 20.0 A A A A Unit Positive threshold voltage VP V Negative threshold voltage VN Hysteresis voltage VH V High-level output voltage VOH IOH = -50 A VIN = VIH or VIL IOH = -8 mA IOH = -16 mA IOL = 50 A VIN = VIH or VIL IOL = 8 mA IOL = 16 mA VIN = VIH or VIL VOUT = 0 to 5.5V VIN/VOUT = 5.5 V VIN = 5.5 V or GND VIN = VCC or GND V Low-level output voltage VOL 3-state output off-state current Power-off leakage current Input leakage current Quiescent supply current IOZ IOFF IIN ICC 4 2010-07-09 TC74VHCV245FT/FK AC Characteristics (input: tr = tf = 3 ns) Characteristics Symbol Test Condition VCC (V) 2.5 0.2 Propagation delay time tpLH tpHL CL (pF) 15 50 15 50 15 50 15 50 15 50 15 50 50 50 50 50 50 50 Min Ta = 25C Typ. 5.9 8.7 4.6 6.9 3.8 5.4 7.0 9.6 5.3 7.4 4.1 5.7 15.0 11.6 9.3 4 6 26 Max 13.0 15.9 8.4 11.9 5.5 7.5 19.9 22.7 13.2 16.7 8.5 10.6 23.1 15.8 9.7 2.0 1.5 1.0 10 Ta = -40 to 85C Min 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Max 15.0 18.0 10.0 13.5 6.5 8.5 22.0 26.0 15.5 19.0 10.0 12.0 25.0 18.0 11.0 2.0 1.5 1.0 10 pF pF pF ns ns ns ns Unit 3.3 0.3 5.0 0.5 2.5 0.2 3-state output enable time tpZL tpZH RL = 1 k 3.3 0.3 5.0 0.5 2.5 0.2 3-state output disable time tpLZ tpHZ RL = 1 k 3.3 0.3 5.0 0.5 2.5 0.2 Output to output skew tosLH tosHL CIN CI/O CPD (Note1) 3.3 0.3 5.0 0.5 DIR, G An, Bn (Note2) Input capacitance Bus input capacitance Power dissipation capacitance Note 1: Parameter guaranteed by design. tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn| Note 2: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) = CPD*VCC*fIN + ICC/8 (per bit) 5 2010-07-09 TC74VHCV245FT/FK Noise Characteristics (input: tr = tf = 3 ns) Characteristics Quiet output maximum dynamic VOL Quiet output minimum dynamic VOL Symbol Test Condition VCC (V) VOLP VOLV CL = 50 pF CL = 50 pF CL = 50 pF CL = 50 pF 3.3 5.0 3.3 5.0 5.0 5.0 Ta = 25C Typ. 0.5 1.0 -0.1 -0.3 Max 3.5 1.5 Unit V V V V Minimum high level dynamic input VIHD voltage Maximum low level dynamic input voltage VILD 6 2010-07-09 TC74VHCV245FT/FK Package Dimensions Weight: 0.08 g (typ.) 7 2010-07-09 TC74VHCV245FT/FK Package Dimensions Weight: 0.03 g (typ.) 8 2010-07-09 TC74VHCV245FT/FK RESTRICTIONS ON PRODUCT USE * Toshiba Corporation, and its subsidiaries and affiliates (collectively "TOSHIBA"), reserve the right to make changes to the information in this document, and related hardware, software and systems (collectively "Product") without notice. * This document and any information herein may not be reproduced without prior written permission from TOSHIBA. Even with TOSHIBA's written permission, reproduction is permissible only if reproduction is without alteration/omission. * Though TOSHIBA works continually to improve Product's quality and reliability, Product can malfunction or fail. Customers are responsible for complying with safety standards and for providing adequate designs and safeguards for their hardware, software and systems which minimize risk and avoid situations in which a malfunction or failure of Product could cause loss of human life, bodily injury or damage to property, including data loss or corruption. Before customers use the Product, create designs including the Product, or incorporate the Product into their own applications, customers must also refer to and comply with (a) the latest versions of all relevant TOSHIBA information, including without limitation, this document, the specifications, the data sheets and application notes for Product and the precautions and conditions set forth in the "TOSHIBA Semiconductor Reliability Handbook" and (b) the instructions for the application with which the Product will be used with or for. Customers are solely responsible for all aspects of their own product design or applications, including but not limited to (a) determining the appropriateness of the use of this Product in such design or applications; (b) evaluating and determining the applicability of any information contained in this document, or in charts, diagrams, programs, algorithms, sample application circuits, or any other referenced documents; and (c) validating all operating parameters for such designs and applications. TOSHIBA ASSUMES NO LIABILITY FOR CUSTOMERS' PRODUCT DESIGN OR APPLICATIONS. * Product is intended for use in general electronics applications (e.g., computers, personal equipment, office equipment, measuring equipment, industrial robots and home electronics appliances) or for specific applications as expressly stated in this document. Product is neither intended nor warranted for use in equipment or systems that require extraordinarily high levels of quality and/or reliability and/or a malfunction or failure of which may cause loss of human life, bodily injury, serious property damage or serious public impact ("Unintended Use"). Unintended Use includes, without limitation, equipment used in nuclear facilities, equipment used in the aerospace industry, medical equipment, equipment used for automobiles, trains, ships and other transportation, traffic signaling equipment, equipment used to control combustions or explosions, safety devices, elevators and escalators, devices related to electric power, and equipment used in finance-related fields. Do not use Product for Unintended Use unless specifically permitted in this document. * Do not disassemble, analyze, reverse-engineer, alter, modify, translate or copy Product, whether in whole or in part. * Product shall not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any applicable laws or regulations. * The information contained herein is presented only as guidance for Product use. No responsibility is assumed by TOSHIBA for any infringement of patents or any other intellectual property rights of third parties that may result from the use of Product. No license to any intellectual property right is granted by this document, whether express or implied, by estoppel or otherwise. * ABSENT A WRITTEN SIGNED AGREEMENT, EXCEPT AS PROVIDED IN THE RELEVANT TERMS AND CONDITIONS OF SALE FOR PRODUCT, AND TO THE MAXIMUM EXTENT ALLOWABLE BY LAW, TOSHIBA (1) ASSUMES NO LIABILITY WHATSOEVER, INCLUDING WITHOUT LIMITATION, INDIRECT, CONSEQUENTIAL, SPECIAL, OR INCIDENTAL DAMAGES OR LOSS, INCLUDING WITHOUT LIMITATION, LOSS OF PROFITS, LOSS OF OPPORTUNITIES, BUSINESS INTERRUPTION AND LOSS OF DATA, AND (2) DISCLAIMS ANY AND ALL EXPRESS OR IMPLIED WARRANTIES AND CONDITIONS RELATED TO SALE, USE OF PRODUCT, OR INFORMATION, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY OF INFORMATION, OR NONINFRINGEMENT. * Do not use or otherwise make available Product or related software or technology for any military purposes, including without limitation, for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or missile technology products (mass destruction weapons). Product and related software and technology may be controlled under the Japanese Foreign Exchange and Foreign Trade Law and the U.S. Export Administration Regulations. Export and re-export of Product or related software or technology are strictly prohibited except in compliance with all applicable export laws and regulations. * Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 9 2010-07-09 |
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