74HC7540; 74HCT7540 Octal Schmitt trigger buffer/line driver; 3-state; inverting Rev. 5 -- 26 May 2016 Product data sheet 1. General description The 74HC7540; 74HCT7540 is an 8-bit inverting buffer/line driver with Schmitt-trigger inputs and 3-state outputs. The device features two output enables (OE1 and OE2). A HIGH on OEn causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. Schmitt trigger inputs transform slowly changing input signals into sharply defined jitter-free output signals. 2. Features and benefits Input levels: For 74HC7540: CMOS level For 74HCT7540: TTL level Inverting outputs Low-power dissipation Complies with JEDEC standard no. 7 A Multiple package options ESD protection: HBM JESD22-A114F exceeds 2000 V MM JESD22-A115-A exceeds 200 V Specified from 40 C to +85 C and from 40 C to +125 C 3. Ordering information Table 1. Ordering information Type number 74HC7540D Package Temperature range Name Description Version 40 C to +125 C SO20 plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 40 C to +125 C SSOP20 plastic shrink small outline package; 20 leads; body width 5.3 mm SOT339-1 74HCT7540D 74HC7540DB 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 4. Functional diagram $ < $ < $ < $ < $ < $ < < $ < $ (1 2( 2( Fig 1. DDD Logic symbol DDD Fig 2. IEC logic symbol 5. Pinning information 5.1 Pinning +& +&7 +& +&7 2( $ 9&& 2( $ < $ < $ < $ < $ $ $ 2( 9&& $ 2( $ < $ < $ < $ < < $ < < $ < < $ < *1' < *1' < DDD Fig 3. Pin configuration SO20 74HC_HCT7540 Product data sheet DDD Fig 4. Pin configuration SSOP20 All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 2 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 5.2 Pin description Table 2. Pin description Symbol Pin Description OE1 1 output enable input (active LOW) A0 to A7 2, 3, 4, 5, 6, 7, 8, 9 data input GND 10 ground (0 V) Y0 to Y7 18, 17, 16, 15, 14, 13, 12, 11 data output OE2 19 output enable input (active LOW) VCC 20 supply voltage 6. Functional description Table 3. Functional table[1] Control Input Output OE1 OE2 An Yn L L L H L L H L X H X Z H X X Z [1] H = HIGH voltage level; L = LOW voltage level; X = don't care; Z = high-impedance OFF-state. 7. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V). Symbol Parameter VCC supply voltage Conditions Min Max Unit 0.5 +7 V - 20 mA - 20 mA - 35 mA input clamping current VI < 0.5 V or VI > VCC + 0.5 V [1] IOK output clamping current VO < 0.5 V or VO > VCC + 0.5 V [1] IO output current 0.5 V < VO < VCC + 0.5 V ICC supply current - 70 mA IGND ground current 70 - mA Tstg storage temperature 65 +150 C Ptot total power dissipation - 500 mW IIK [1] [2] SO20, SSOP20 [2] The input and output voltage ratings may be exceeded if the input and output current ratings are observed. For SO20 package: above 70 C the value of Ptot derates linearly with 8 mW/K. For SSOP20 package: above 60 C the value of Ptot derates linearly with 5.5 mW/K. 74HC_HCT7540 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 3 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 8. Recommended operating conditions Table 5. Recommended operating conditions Voltages are referenced to GND (ground = 0 V) Symbol Parameter Conditions 74HC7540 Min Typ 74HCT7540 Max Min Typ Unit Max VCC supply voltage 2.0 5.0 6.0 4.5 5.0 5.5 V VI input voltage 0 - VCC 0 - VCC V VO output voltage 0 - VCC 0 - VCC V Tamb ambient temperature 40 +25 +125 40 +25 +125 C 9. Static characteristics Table 6. Static characteristics At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Tamb = 25 C Conditions Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit Min Typ Max Min Max Min Max IO = 20 A; VCC = 2.0 V 1.9 2.0 - 1.9 - 1.9 - V IO = 20 A; VCC = 4.5 V 4.4 4.5 - 4.4 - 4.4 - V IO = 20 A; VCC = 6.0 V 5.9 6.0 - 5.9 - 5.9 - V IO = 6.0 mA; VCC = 4.5 V 3.98 4.32 - 3.84 - 3.7 - V IO = 7.8 mA; VCC = 6.0 V 5.48 5.81 - 5.34 - 5.2 - V IO = 20 A; VCC = 2.0 V - 0 0.1 - 0.1 - 0.1 V IO = 20 A; VCC = 4.5 V - 0 0.1 - 0.1 - 0.1 V IO = 20 A; VCC = 6.0 V - 0 0.1 - 0.1 - 0.1 V IO = 6.0 mA; VCC = 4.5 V - 0.15 0.26 - 0.33 - 0.4 V IO = 7.8 mA; VCC = 6.0 V - 0.16 0.26 - 0.33 - 0.4 V 74HC7540 VOH VOL HIGH-level output voltage LOW-level output voltage VI = VT+ or VT VI = VT+ or VT II input leakage current VI = VCC or GND; VCC = 6.0 V - - 0.1 - 1.0 - 1.0 A IOZ OFF-state output current VI = VT+ or VT; VCC = 6.0 V; VO = VCC or GND - - 0.5 - 5.0 - 10 A ICC supply current VI = VCC or GND; IO = 0 A; VCC = 6.0 V - - 8.0 - 80 - 160 A CI input capacitance - 3.5 - - - - - pF IO = 20 A 4.4 4.5 - 4.4 - 4.4 - V IO = 6.0 mA 3.98 4.32 - 3.84 - 3.7 - V 74HCT7540 VOH HIGH-level output voltage 74HC_HCT7540 Product data sheet VI = VT+ or VT; VCC = 4.5 V All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 4 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting Table 6. Static characteristics ...continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter VOL LOW-level output voltage Tamb = 25 C Conditions Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit Min Typ Max Min Max Min Max IO = 20 A; - 0 0.1 - 0.1 - 0.1 V IO = 6.0 mA; - 0.15 0.26 - 0.33 - 0.4 V VI = VT+ or VT; VCC = 4.5 V II input leakage current VI = VCC or GND; VCC = 5.5 V - - 0.1 - 1.0 - 1.0 A IOZ OFF-state output current VI = VT+ or VT; VCC = 5.5 V; VO = VCC or GND - - 0.5 - 5.0 - 10 A ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 8.0 - 80 - 160 A ICC additional supply current per input pin; IO = 0 A; VI = VCC 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V An input - 20 72 - 90 - 98 A OEn input - 130 468 - 585 - 637 A - 3.5 - - - - - pF CI input capacitance 10. Dynamic characteristics Table 7. Dynamic characteristics GND = 0 V; CL = 50 pF; for test circuit see Figure 7. Symbol Parameter Tamb = 25 C Conditions Tamb = 40 C to +125 C Unit Min Typ Max Max (85 C) Max (125 C) VCC = 2.0 V - 39 120 150 180 ns VCC = 4.5 V - 14 24 30 36 ns VCC = 5.0 V; CL = 15 pF - 11 - - - ns - 11 20 26 31 ns VCC = 2.0 V - 41 150 190 225 ns VCC = 4.5 V - 15 30 38 45 ns - 12 26 33 38 ns VCC = 2.0 V - 52 150 190 225 ns VCC = 4.5 V - 19 30 38 45 ns VCC = 6.0 V - 15 26 33 38 ns 74HC7540 tpd propagation delay An to Yn; see Figure 5 [1] VCC = 6.0 V ten enable time OEn to Yn; see Figure 6 [1] VCC = 6.0 V tdis disable time 74HC_HCT7540 Product data sheet OEn to Yn; see Figure 6 [1] All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 5 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting Table 7. Dynamic characteristics GND = 0 V; CL = 50 pF; for test circuit see Figure 7. Symbol Parameter tt transition time Tamb = 25 C Conditions power dissipation capacitance Max Max (85 C) Unit Max (125 C) Min Typ VCC = 2.0 V - 14 60 75 90 ns VCC = 4.5 V - 5 12 15 18 ns - 4 10 13 15 ns - 29 - - - pF - 19 32 40 48 ns - 16 - - - ns - 19 32 40 48 ns [2] see Figure 5 VCC = 6.0 V CPD Tamb = 40 C to +125 C [3] per package; VI = GND to VCC 74HCT7540 propagation delay An to Yn; see Figure 5 tpd [1] VCC = 4.5 V VCC = 5.0 V; CL = 15 pF enable time ten OEn to Yn; see Figure 6 [1] VCC = 4.5 V [1] tdis disable time OEn to Yn; see Figure 6 - 20 32 40 48 ns tt transition time VCC = 4.5 V; see Figure 5 [2] - 5 12 15 18 ns CPD power dissipation capacitance per package; VI = GND to VCC 1.5 V [3] - 31 - - - pF VCC = 4.5 V [1] tpd is the same as tPLH and tPHL. ten is the same as tPZL and tPZH. tdis is the same as tPLZ and tPHZ. [2] tt is the same as tTHL and tTLH. [3] CPD is used to determine the dynamic power dissipation (PD in W): PD = CPD VCC2 fi N + (CL VCC2 fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; (CL VCC2 fo) = sum of outputs. 74HC_HCT7540 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 6 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 11. Waveforms 9, 90 $QLQSXW 90 *1' W3+/ W3/+ 92+ 90 <QRXWSXW 90 92/ W7+/ W7/+ DDD Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 5. Input to output propagation delays 9, 90 2(QLQSXW *1' W3=/ W3/= <QRXWSXW /2:WR2)) 2))WR/2: 9&& 90 9; 92/ W3+= 92+ <QRXWSXW +,*+WR2)) 2))WR+,*+ W3=+ 9< 90 *1' RXWSXWV HQDEOHG RXWSXWV GLVDEOHG RXWSXWV HQDEOHG DDD Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 6. 3-state enable and disable times Table 8. Measurement points Type Input Output VM VM VX VY 74HC7540 0.5VCC 0.5VCC 0.1VCC 0.9VCC 74HCT7540 1.3 V 1.3 V 0.1VCC 0.9VCC 74HC_HCT7540 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 7 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 9, W: QHJDWLYH SXOVH 90 9 WI WU WU WI 9, SRVLWLYH SXOVH 9 90 90 90 W: 9&& 9&& * 9, 92 5/ 6 RSHQ '87 &/ 57 DDG Test data is given in Table 9. Definitions test circuit: RT = Termination resistance should be equal to output impedance Zo of the pulse generator CL = Load capacitance including jig and probe capacitance RL = Load resistance S1 = Test selection switch Fig 7. Test circuit for measuring switching times Table 9. Test data Type Input VI tr, tf CL RL tPHL, tPLH tPZH, tPHZ tPZL, tPLZ 74HC7540 VCC 6 ns 15 pF, 50 pF 1 k open GND VCC 74HCT7540 3V 6 ns 15 pF, 50 pF 1 k open GND VCC 74HC_HCT7540 Product data sheet Load S1 position All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 8 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 12. Transfer characteristics Table 10. Transfer characteristics At recommended operating conditions; voltages are referenced to GND (ground = 0 V); see Figure 8 and Figure 9. Symbol Parameter Tamb = 25 C Conditions Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit Min Typ Max Min Max Min Max VCC = 2.0 V - - 1.5 - 1.5 - 1.5 V VCC = 4.5 V - - 3.15 - 3.15 - 3.15 V 74HC7540 VT+ VT VH positive-going threshold voltage VCC = 6.0 V negative-going VCC = 2.0 V threshold VCC = 4.5 V voltage VCC = 6.0 V hysteresis voltage - - 4.2 - 4.2 - 4.2 V 0.3 - - 0.3 - 0.3 - V 1.35 - - 1.35 - 1.35 - V 1.8 - - 1.8 - 1.8 - V VCC = 2.0 V 0.1 0.20 - 0.1 - 0.1 - V VCC = 4.5 V 0.25 0.40 - 0.25 - 0.25 - V VCC = 6.0 V 0.3 0.5 - 0.3 - 0.3 - V VCC = 4.5 V - - 2.0 - 2.0 - 2.0 V VCC = 5.5 V - - 2.1 - 2.1 - 2.1 V negative-going VCC = 4.5 V threshold VCC = 5.5 V voltage 0.7 - - 0.64 - 0.6 - V 0.8 - - 0.74 - 0.7 - V hysteresis voltage VCC = 4.5 V 0.17 0.23 - - - - - V VCC = 5.5 V 0.17 0.23 - - - - - V 74HCT7540 VT+ VT VH positive-going threshold voltage 13. Transfer characteristics waveforms 92 9, 97 9+ 97 9, 9+ 97 Fig 8. 97 Transfer characteristics 74HC_HCT7540 Product data sheet 92 PQD PQD Fig 9. Transfer characteristics definitions All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 9 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 14. Package outline 62SODVWLFVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP 627 ' $ ( ; F \ +( Y 0 $ = 4 $ $ $ $ SLQLQGH[ /S / H GHWDLO; Z 0 ES PP VFDOH ',0(16,216 LQFKGLPHQVLRQVDUHGHULYHGIURPWKHRULJLQDOPPGLPHQVLRQV 81,7 $ PD[ $ $ $ ES F ' ( H +( / /S 4 Y Z \ PP LQFKHV = R R 1RWH 3ODVWLFRUPHWDOSURWUXVLRQVRIPP LQFK PD[LPXPSHUVLGHDUHQRWLQFOXGHG 5()(5(1&(6 287/,1( 9(56,21 ,(& -('(& 627 ( 06 -(,7$ (8523($1 352-(&7,21 ,668('$7( Fig 10. Package outline SOT163-1 (SO20) 74HC_HCT7540 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 10 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 6623SODVWLFVKULQNVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP ' 627 ( $ ; F +( \ Y 0 $ = 4 $ $ $ $ SLQLQGH[ /S / Z 0 ES H GHWDLO; PP VFDOH ',0(16,216 PPDUHWKHRULJLQDOGLPHQVLRQV 81,7 $ PD[ $ $ $ ES F ' ( H +( / /S 4 Y Z \ = PP R R 1RWH 3ODVWLFRUPHWDOSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG 287/,1( 9(56,21 627 5()(5(1&(6 ,(& -('(& -(,7$ (8523($1 352-(&7,21 ,668('$7( 02 Fig 11. Package outline SOT339-1 (SSOP20) 74HC_HCT7540 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 11 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 15. Abbreviations Table 11. Abbreviations Acronym Description CMOS Complementary Metal-Oxide Semiconductor DUT Device Under Test ESD ElectroStatic Discharge HBM Human Body Model LSTTL Low-power Schottky Transistor-Transistor Logic MM Machine Model 16. Revision history Table 12. Revision history Document ID Release date Data sheet status Change notice Supersedes 74HC_HCT7540 v.5 20160526 Product data sheet - 74HC_HCT7540 v.4 Modifications: 74HC_HCT7540 v.4 Modifications: 74HC_HCT7540 v.3 Modifications: * * Type numbers 74HC7540N and 74HCT7540N (SOT146-1) removed. Table 6: conditions for OFF-state output current have changed. 20121231 * 20120827 Product data sheet - 74HC_HCT7540 v.3 Product data sheet - 74HC_HCT7540_CNV v.2 * The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors. * Legal texts have been adapted to the new company name where appropriate. 74HC_HCT7540_CNV v.2 19970917 74HC_HCT7540 Product data sheet IOZ added to static characteristics table. Product specification - All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 - (c) Nexperia B.V. 2017. All rights reserved 12 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 17. Legal information 17.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification. [1] Please consult the most recently issued document before initiating or completing a design. [2] The term `short data sheet' is explained in section "Definitions". [3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nexperia.com. 17.2 Definitions Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. Nexperia does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local Nexperia sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. Product specification -- The information and data provided in a Product data sheet shall define the specification of the product as agreed between Nexperia and its customer, unless Nexperia and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the Nexperia product is deemed to offer functions and qualities beyond those described in the Product data sheet. 17.3 Disclaimers Limited warranty and liability -- Information in this document is believed to be accurate and reliable. However, Nexperia does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Nexperia takes no responsibility for the content in this document if provided by an information source outside of Nexperia. In no event shall Nexperia be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, Nexperia's aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of Nexperia. Right to make changes -- Nexperia reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. 74HC_HCT7540 Product data sheet Suitability for use -- Nexperia products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of a Nexperia product can reasonably be expected to result in personal injury, death or severe property or environmental damage. Nexperia and its suppliers accept no liability for inclusion and/or use of Nexperia products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. Nexperia makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using Nexperia products, and Nexperia accepts no liability for any assistance with applications or customer product design. It is customer's sole responsibility to determine whether the Nexperia product is suitable and fit for the customer's applications and products planned, as well as for the planned application and use of customer's third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. Nexperia does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer's applications or products, or the application or use by customer's third party customer(s). Customer is responsible for doing all necessary testing for the customer's applications and products using Nexperia products in order to avoid a default of the applications and the products or of the application or use by customer's third party customer(s). Nexperia does not accept any liability in this respect. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and conditions of commercial sale -- Nexperia products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nexperia.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. Nexperia hereby expressly objects to applying the customer's general terms and conditions with regard to the purchase of Nexperia products by customer. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 13 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting Export control -- This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities. Non-automotive qualified products -- Unless this data sheet expressly states that this specific Nexperia product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. Nexperia accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without Nexperia's warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond Nexperia's specifications such use shall be solely at customer's own risk, and (c) customer fully indemnifies Nexperia for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond Nexperia's standard warranty and Nexperia's product specifications. Translations -- A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions. 17.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 18. Contact information For more information, please visit: http://www.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com 74HC_HCT7540 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 5 -- 26 May 2016 (c) Nexperia B.V. 2017. All rights reserved 14 of 15 74HC7540; 74HCT7540 Nexperia Octal Schmitt trigger buffer/line driver; 3-state; inverting 19. Contents 1 2 3 4 5 5.1 5.2 6 7 8 9 10 11 12 13 14 15 16 17 17.1 17.2 17.3 17.4 18 19 (c) General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 1 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 2 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 Functional description . . . . . . . . . . . . . . . . . . . 3 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 3 Recommended operating conditions. . . . . . . . 4 Static characteristics. . . . . . . . . . . . . . . . . . . . . 4 Dynamic characteristics . . . . . . . . . . . . . . . . . . 5 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Transfer characteristics . . . . . . . . . . . . . . . . . . 9 Transfer characteristics waveforms. . . . . . . . . 9 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 10 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 12 Legal information. . . . . . . . . . . . . . . . . . . . . . . 13 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 13 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Contact information. . . . . . . . . . . . . . . . . . . . . 14 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Nexperia B.V. 2017. All rights reserved For more information, please visit: http://www.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com Date of release: 26 May 2016