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74VHCT240AFT

74VHCT240AFT

  • 厂商:

    TOSHIBA(东芝)

  • 封装:

    TSSOP20

  • 描述:

    IC BUFFER INVERT 5.5V 20TSSOP

  • 数据手册
  • 价格&库存
74VHCT240AFT 数据手册
74VHCT240AFT,74VHCT244AFT CMOS Digital Integrated Circuits Silicon Monolithic 74VHCT240AFT,74VHCT244AFT 1. Functional Description • Octal Bus Buffer 74VHCT240AFT: INVERTED, 3-STATE OUTPUTS 74VHCT244AFT: NON-INVERTED, 3-STATE OUTPUTS 2. General The 74VHCT240AFT and 74VHCT244AFT are advanced high speed CMOS OCTAL BUS BUFFERs fabricated with silicon gate C2MOS technology. They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The 74VHCT240AFT is an inverting 3-state buffer having two active-low output enables. The 74VHCT244AFT is a non-inverting 3-state buffer, and has two active-low output enables. These devices are designed to be used with 3-state memory address drivers, etc. The input voltage are compatible with TTL output voltage. These devices may be used as a level converter for interfacing 3.3 V to 5 V system. 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, hot board insertion, etc. Note: Output in off-state 3. Features (1) AEC-Q100 (Rev. H) (Note 1) (2) Wide operating temperature range: Topr = -40 to 125  (3) High speed: Propagation delay time = 6.1 ns (typ.) at VCC = 5.0 V (4) Quiescent supply current: ICC = 4.0 µA (max) at Ta = 25  (5) Compatible with TTL input: VIL = 0.8 V (max) (6) Power down protection is provided on all inputs and outputs. (7) Balanced propagation delays: tPLH ≈ tPHL (8) Low noise: VOLP = 1.0 V (max) (9) Pin and function compatible with the 74 series VIH = 2.0 V (min) (ACT/HCT/AHCT etc.) 240/244 type. Note 1: This device is compliant with the reliability requirements of AEC-Q100. For details, contact your Toshiba sales representative. Start of commercial production ©2017 Toshiba Corporation 1 2013-01 2017-02-23 Rev.4.0 74VHCT240AFT,74VHCT244AFT 4. Packaging TSSOP20B 5. Pin Assignment 74VHCT240AFT 74VHCT244AFT 6. Marking 74VHCT240AFT ©2017 Toshiba Corporation 74VHCT244AFT 2 2017-02-23 Rev.4.0 74VHCT240AFT,74VHCT244AFT 7. IEC Logic Symbol 74VHCT240AFT 74VHCT244AFT 8. Truth Table Input G X: Z: Yn: Yn: Input An Output Yn Output Yn L L L H L H H L H X Z Z Don't care High impedance 74VHCT244AFT 74VHCT240AFT ©2017 Toshiba Corporation 3 2017-02-23 Rev.4.0 74VHCT240AFT,74VHCT244AFT 9. Absolute Maximum Ratings (Note) Characteristics Symbol Supply voltage VCC Input voltage VIN Output voltage VOUT Note Rating -0.5 to 7.0 Unit V -0.5 to 7.0 V (Note 1) -0.5 to 7.0 V (Note 2) -0.5 to VCC + 0.5 -20 mA (Note 3) ±20 mA Input diode current IIK Output diode current IOK Output current IOUT ±25 mA VCC/ground current ICC ±75 mA 180 mW -65 to 150  Power dissipation PD Storage temperature Tstg (Note 4) Note: 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 1: Output in off-state. Note 2: High (H) or Low (L) state. IOUT absolute maximum rating must be observed. Note 3: VOUT < GND, VOUT > VCC Note 4: 180 mW in the range of Ta = -40 to 85 . From Ta = 85 to 125  a derating factor of -3.25 mW/ shall be applied until 50 mW. 10. Operating Ranges (Note) Characteristics Symbol Note Rating Unit Supply voltage VCC 4.5 to 5.5 V Input voltage VIN 0 to 5.5 V (Note 1) 0 to 5.5 V (Note 2) 0 to VCC Output voltage VOUT Operating temperature Topr -40 to 125  Input rise and fall times dt/dv 0 to 20 ns/V Note: The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs must be tied to either VCC or GND. Note 1: Output in OFF state. Note 2: High (H) or Low (L) state. ©2017 Toshiba Corporation 4 2017-02-23 Rev.4.0 74VHCT240AFT,74VHCT244AFT 11. Electrical Characteristics 11.1. DC Characteristics (Unless otherwise specified, Ta = 25 ) Characteristics High-level input voltage Symbol Test Condition VCC (V) Min Typ. Max Unit VIH  4.5 to 5.5 2.0   V Low-level input voltage VIL  High-level output voltage VOH VIN = VIH or VIL Low-level output voltage VOL VIN = VIH or VIL 3-state output OFF-state leakage current IOZ VIN = VIH or VIL VOUT = VCC or GND Input leakage current IIN Quiescent supply current ICC Output leakage current (Power-OFF) 4.5 to 5.5   0.8 V IOH = -50 µA 4.5 4.4 4.5  V IOH = -8 mA 4.5 3.94   IOL = 50 µA 4.5  0.0 0.1 IOL = 8 mA 4.5   0.36 5.5   ±0.25 µA VIN = 5.5 V or GND 0 to 5.5   ±0.1 µA VIN = VCC or GND 5.5   4.0 µA ICCT Per input :VIN = 3.4V Other input:VCC or GND 5.5   1.35 mA IOPD VOUT = 5.5 V 0   0.5 µA V 11.2. DC Characteristics (Unless otherwise specified, Ta = -40 to 85 ) Characteristics High-level input voltage Symbol Test Condition VCC (V) Min Max Unit VIH  4.5 to 5.5 2.0  V Low-level input voltage VIL High-level output voltage VOH VIN = VIH or VIL  4.5 to 5.5  0.8 V IOH = -50 µA 4.5 4.4  V Low-level output voltage VOL VIN = VIH or VIL IOH = -8 mA 4.5 3.80  IOL = 50 µA 4.5  0.1 3-state output OFF-state leakage current IOZ VIN = VIH or VIL VOUT = VCC or GND IOL = 8 mA 4.5  0.44 5.5  ±2.50 µA Input leakage current IIN VIN = 5.5 V or GND 0 to 5.5  ±1.0 µA Quiescent supply current Quiescent supply current ICC VIN = VCC or GND 5.5  40.0 µA ICCT Per input: VIN = 3.4 V Other input: VCC or GND 5.5  1.50 mA Output leakage current (Power-OFF) IOPD VOUT = 5.5 V 0  5.0 µA Max Unit V 11.3. DC Characteristics (Unless otherwise specified, Ta = -40 to 125 ) Characteristics Symbol Test Condition VCC (V) Min High-level input voltage VIH  4.5 to 5.5 2.0  V Low-level input voltage VIL  4.5 to 5.5  0.8 V High-level output voltage VOH V Low-level output voltage 3-state output OFF-state leakage current VOL VIN = VIH or VIL VIN = VIH or VIL IOH = -50 µA 4.5 4.4  IOH = -8 mA 4.5 3.70  IOL = 50 µA 4.5  0.1 IOL = 8 mA 4.5  0.55 ±10.0 µA V IOZ VIN = VIH or VIL VOUT = VCC or GND 5.5  Input leakage current IIN VIN = 5.5 V or GND 0 to 5.5  ±2.0 µA Quiescent supply current ICC VIN = VCC or GND 5.5  80.0 µA Quiescent supply current ICCT Per input: VIN = 3.4 V Other input: VCC or GND 5.5  1.50 mA Output leakage current (Power-OFF) IOPD VOUT = 5.5 V 0  20.0 µA ©2017 Toshiba Corporation 5 2017-02-23 Rev.4.0 74VHCT240AFT,74VHCT244AFT 11.4. AC Characteristics (Unless otherwise specified, Ta = 25 , Input: tr = tf = 3 ns) Characteristics Propagation delay time Part Number Symbol Note Test Condition VCC (V) CL (pF) Min Typ. Max Unit  5.0 ± 0.5 15  5.6 7.8 ns 50  6.1 8.8 15  5.4 7.4 50  5.9 8.4 15  7.7 10.4 50  8.2 11.4 5.0 ± 0.5 50  8.8 11.4 ns 5.0 ± 0.5 50   1.0 ns 74VHCT240AFT tPLH,tPHL 74VHCT244AFT tPLH,tPHL 3-state output enable time tPZL,tPZH 3-state output disable time RL = 1 kΩ tosLH,tosHL (Note 1) Input capacitance Output capacitance 5.0 ± 0.5 RL = 1 kΩ tPLZ,tPHZ Output skew Power dissipation capacitance   5.0 ± 0.5 ns ns CIN   4 10 pF COUT   9  pF pF 74VHCT240AFT CPD (Note 2)   19  74VHCT244AFT CPD (Note 2)   18  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) 11.5. AC Characteristics (Unless otherwise specified, Ta = -40 to 85 , Input: tr = tf = 3 ns) Characteristics Propagation delay time Test Condition VCC (V) CL (pF) Min Max Unit 74VHCT240AFT tPLH,tPHL  5.0 ± 0.5 15 1.0 9.0 ns 50 1.0 10.0 74VHCT244AFT tPLH,tPHL  5.0 ± 0.5 15 1.0 8.5 50 1.0 9.5 15 1.0 12.0 Part Number Symbol Note ns 3-state output enable time tPZL,tPZH RL = 1 kΩ 5.0 ± 0.5 50 1.0 13.0 3-state output disable time tPLZ,tPHZ RL = 1 kΩ 5.0 ± 0.5 50 1.0 13.0  5.0 ± 0.5 50  1.0 ns  10 pF Output skew tosLH,tosHL (Note 1) Input capacitance CIN  ns ns Note 1: Parameter guaranteed by design. (tosLH = |tPLHm-tPLHn|, tosHL = |tPHLm-tPHLn|) 11.6. AC Characteristics (Unless otherwise specified, Ta = -40 to 125 , Input: tr = tf = 3 ns) Characteristics Part Number Symbol Note Test Condition VCC (V) CL (pF) Min Max Unit 15 1.0 10.0 ns 50 1.0 11.0 15 1.0 9.5 50 1.0 10.5 15 1.0 13.0 Propagation delay time 74VHCT240AFT tPLH,tPHL  5.0 ± 0.5 Propagation delay time 74VHCT244AFT tPLH,tPHL  5.0 ± 0.5 ns 3-state output enable time tPZL,tPZH RL = 1 kΩ 5.0 ± 0.5 50 1.0 14.5 3-state output disable time tPLZ,tPHZ RL = 1 kΩ 5.0 ± 0.5 50 1.0 14.5 5.0 ± 0.5 50  1.0 ns  10 pF Output skew Input capacitance tosLH,tosHL (Note 1) CIN   ns ns Note 1: Parameter guaranteed by design. (tosLH = |tPLHm-tPLHn|, tosHL = |tPHLm-tPHLn|) ©2017 Toshiba Corporation 6 2017-02-23 Rev.4.0 74VHCT240AFT,74VHCT244AFT 11.7. Noise Characteristics (Unless otherwise specified, Ta = 25 , Input: tr = tf = 3 ns) Characteristics Symbol Test Condition VCC (V) Typ. Limit Unit V Quiet output maximum dynamic VOL VOLP CL = 50 pF 5.0 0.8 1.0 Quiet output minimum dynamic VOL VOLV CL = 50 pF 5.0 -0.8 -1.0 Minimum high-level dynamic input voltage VIHD CL = 50 pF 5.0  2.0 Maximum low-level dynamic input voltage VILD CL = 50 pF 5.0  0.8 ©2017 Toshiba Corporation 7 2017-02-23 Rev.4.0 74VHCT240AFT,74VHCT244AFT Package Dimensions Unit: mm Weight: 0.071 g (typ.) Package Name(s) Nickname: TSSOP20B ©2017 Toshiba Corporation 8 2017-02-23 Rev.4.0 74VHCT240AFT,74VHCT244AFT 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 NEITHER INTENDED NOR WARRANTED FOR USE IN EQUIPMENTS 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 AND/OR SERIOUS PUBLIC IMPACT ("UNINTENDED USE"). Except for specific applications as expressly stated in this document, 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. IF YOU USE PRODUCT FOR UNINTENDED USE, TOSHIBA ASSUMES NO LIABILITY FOR PRODUCT. For details, please contact your TOSHIBA sales representative. • 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 applicable export laws and regulations including, without limitation, 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. ©2017 Toshiba Corporation 9 2017-02-23 Rev.4.0
74VHCT240AFT 价格&库存

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74VHCT240AFT
    •  国内价格
    • 1+3.71520
    • 10+3.08880
    • 30+2.77560

    库存:0