74HC238; 74HCT238 3-to-8 line decoder/demultiplexer Rev. 4 -- 27 January 2016 Product data sheet 1. General description The 74HC238; 74HCT238 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs (E1 and E2 and E3). Every output will be LOW unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four '238 ICs and one inverter. The '238 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. 2. Features and benefits Demultiplexing capability Multiple input enable for easy expansion Ideal for memory chip select decoding Active HIGH mutually exclusive outputs Multiple package options Complies with JEDEC standard no. 7A Input levels: For 74HC238: CMOS level For 74HCT238: TTL level 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 74HC238D Package Temperature range Name Description Version 40 C to +125 C SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 40 C to +125 C SSOP16 plastic shrink small outline package; 16 leads; body width 5.3 mm SOT338-1 74HCT238D 74HC238DB 74HCT238DB 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer Table 1. Ordering information ...continued Type number 74HC238PW Package Temperature range Name Description Version 40 C to +125 C TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 40 C to +125 C DHVQFN16 plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 3.5 0.85 mm 74HCT238PW 74HC238BQ 74HCT238BQ SOT763-1 4. Functional diagram $ $ $ 72 '(&2'(5 < < $ < (1$%/( (;,7,1* < < < < $ $ ( Fig 1. Logic symbol 74HC_HCT238 Product data sheet 72 '(&2'(5 (1$%/( (;,7,1* ( ( ( < ( ( < < < < < < < < DDJ DDJ Fig 2. Functional diagram All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 2 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer < ( < ( < ( < < < $ < $ < $ DDJ Fig 3. Logic diagram 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 3 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 5. Pinning information 5.1 Pinning +& +&7 $ WHUPLQDO LQGH[DUHD 9&& +& +&7 9&& $ < $ < $ < $ < ( < ( < ( < ( ( < < *1' < < < < < < < *1' *1' ( $ DDJ 7UDQVSDUHQWWRSYLHZ DDJ (1) This is not a supply pin. The substrate is attached to this pad using conductive die attach material. There is no electrical or mechanical requirement to solder this pad. However, if it is soldered, the solder land should remain floating or be connected to GND. Fig 4. Pin configuration SO16 and (T)SSOP16 Fig 5. Pin configuration DHVQFN16 5.2 Pin description Table 2. Pin description Symbol Pin Description A0, A1, A2 1, 2, 3 address input E1 4 enable input (active LOW) E2 5 enable input (active LOW) E3 6 enable input (active HIGH) Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7 15, 14, 13, 12, 11, 10, 9, 7 output (active HIGH) GND 8 ground (0 V) VCC 16 supply voltage 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 4 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 6. Functional description Function table[1] Table 3. Inputs Outputs E1 E2 E3 A0 A1 A2 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 H X X X X X L L L L L L L L X H X X X X L L L L L L L L X X L X X X L L L L L L L L L L H L L L H L L L L L L L L L H H L L L H L L L L L L L L H L H L L L H L L L L L L L H H H L L L L H L L L L L L H L L H L L L L H L L L L L H H L H L L L L L H L L L L H L H H L L L L L L H L L L H H H H L L L L L L L H [1] H = HIGH voltage level; L = LOW voltage level; X = don't care. 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 Conditions Min Max Unit VCC supply voltage 0.5 +7 V IIK input clamping current VI < 0.5 V or VI > VCC + 0.5 V [1] - 20 mA IOK output clamping current VO < 0.5 V or VO > VCC + 0.5 V [1] - 20 mA IO output current 0.5 V < VO < VCC + 0.5 V - 25 mA ICC supply current - 50 mA IGND ground current 50 - mA Tstg storage temperature 65 +150 C - 500 mW total power dissipation Ptot [1] [2] SO16, (T)SSOP16 and DHVQFN16 packages [2] The input and output voltage ratings may be exceeded if the input and output current ratings are observed. For SO16 package: above 70 C the value of Ptot derates linearly at 8 mW/K. For SSOP16 and TSSOP16 packages: above 60 C the value of Ptot derates linearly at 5.5 mW/K. For DHVQFN16 package: above 60 C the value of Ptot derates linearly at 4.5 mW/K. 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 5 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 8. Recommended operating conditions Table 5. Recommended operating conditions Voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions 74HC238 74HCT238 Unit Min Typ Max Min Typ Max 2.0 5.0 6.0 4.5 5.0 5.5 V input voltage 0 - VCC 0 - VCC V VO output voltage 0 - VCC 0 - VCC V Tamb ambient temperature C t/V input transition rise and fall rate VCC supply voltage VI 40 - +125 40 - +125 VCC = 2.0 V - - 625 - - - ns/V VCC = 4.5 V - 1.67 139 - 1.67 139 ns/V VCC = 6.0 V - - 83 - - - ns/V 9. Static characteristics Table 6. Static characteristics At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter 25 C Conditions 40 C to +85 C 40 C to +125 C Unit Min Typ Max Min Max Min Max VCC = 2.0 V 1.5 1.2 - 1.5 - 1.5 - VCC = 4.5 V 3.15 2.4 - 3.15 - 3.15 - V VCC = 6.0 V 4.2 3.2 - 4.2 - 4.2 - V VCC = 2.0 V - 0.8 0.5 - 0.5 - 0.5 V VCC = 4.5 V - 2.1 1.35 - 1.35 - 1.35 V 74HC238 VIH VIL VOH VOL HIGH-level input voltage LOW-level input voltage V VCC = 6.0 V - 2.8 1.8 - 1.8 - 1.8 V HIGH-level VI = VIH or VIL output voltage 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 = 4.0 mA; VCC = 4.5 V 3.98 4.32 - 3.84 - 3.7 - V IO = 5.2 mA; VCC = 6.0 V 5.48 5.81 - 5.34 - 5.2 - V LOW-level VI = VIH or VIL output voltage 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 = 4.0 mA; VCC = 4.5 V - 0.15 0.26 - 0.33 - 0.4 V IO = 5.2 mA; VCC = 6.0 V II input leakage current ICC supply current VI = VCC or GND; IO = 0 A; VCC = 6.0 V 74HC_HCT238 Product data sheet VI = VCC or GND; VCC = 6.0 V - 0.16 0.26 - 0.33 - 0.4 V - - 0.1 - 1.0 - 1.0 A - - 8.0 - 80 - 160 A All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 6 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer Table 6. Static characteristics ...continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter CI 25 C Conditions input capacitance 40 C to +85 C 40 C to +125 C Unit Min Typ Max Min Max Min Max - 3.5 - - - - - pF 74HCT238 VIH HIGH-level input voltage VCC = 4.5 V to 5.5 V 2.0 1.6 - 2.0 - 2.0 - V VIL LOW-level input voltage VCC = 4.5 V to 5.5 V - 1.2 0.8 - 0.8 - 0.8 V VOH HIGH-level VI = VIH or VIL; VCC = 4.5 V output voltage IO = 20 A 4.4 4.5 - 4.4 - 4.4 - V 3.98 4.32 - 3.84 - 3.7 - V 0.1 - 0.1 - 0.1 V IO = 4.0 mA VOL LOW-level VI = VIH or VIL; VCC = 4.5 V output voltage IO = 20 A - 0 IO = 4.0 mA - 0.16 0.26 - 0.33 - 0.4 V VI = VCC or GND; VCC = 5.5 V - - 0.1 - 1.0 - 1.0 A - - 8.0 - 80 - 160 A An inputs - 70 252 - 315 - 343 A E1, E2 inputs - 40 144 - 180 - 196 A - 145 522 - 653 - 711 A - 3.5 - - - - - pF II input leakage current ICC supply current VI = VCC or GND; VCC = 5.5 V; IO = 0 A ICC additional per input pin; supply current VI = VCC 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A E3 input CI input capacitance 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 7 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 10. Dynamic characteristics Table 7. Dynamic characteristics GND = 0 V; test circuit see Figure 8. Symbol Parameter 25 C Conditions 40 C to +125 C Min Typ Max Max (85 C) Max Unit (125 C) VCC = 2.0 V - 47 150 190 225 ns VCC = 4.5 V - 17 30 38 45 ns VCC = 5.0 V; CL = 15 pF - 14 - - - ns - 14 26 33 38 ns VCC = 2.0 V - 52 160 200 240 ns VCC = 4.5 V - 19 32 40 48 ns VCC = 5.0 V; CL = 15 pF - 16 - - - ns - 15 27 34 41 ns VCC = 2.0 V - 50 155 195 235 ns VCC = 4.5 V - 18 31 39 47 ns VCC = 5.0 V; CL = 15 pF - 17 - - - ns VCC = 6.0 V - 14 26 33 40 ns VCC = 2.0 V - 19 75 95 110 ns VCC = 4.5 V - 7 15 19 22 ns VCC = 6.0 V - 6 13 16 19 ns - 72 - - - pF 74HC238 tpd propagation delay An to Yn; see Figure 6 [1] VCC = 6.0 V E3 to Yn; see Figure 6 [1] VCC = 6.0 V En to Yn or see Figure 7 tt CPD transition time power dissipation capacitance 74HC_HCT238 Product data sheet see Figure 6 and Figure 7 per package; VI = GND to VCC [1] [2] [3] All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 8 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer Table 7. Dynamic characteristics GND = 0 V; test circuit see Figure 8. Symbol Parameter 25 C Conditions 40 C to +125 C Min Typ Max Max (85 C) Max Unit (125 C) - 19 35 44 53 ns - 18 - - - ns - 20 37 46 56 ns - 20 - - - ns - 20 35 44 53 ns 74HCT238 [1] propagation delay An to Yn; see Figure 6 tpd VCC = 4.5 V VCC = 5.0 V; CL = 15 pF [1] E3 to Yn; see Figure 6 VCC = 4.5 V VCC = 5.0 V; CL = 15 pF [1] En to Yn or see Figure 7 VCC = 4.5 V VCC = 5.0 V; CL = 15 pF tt transition time VCC = 4.5 V; see Figure 6 and Figure 7 [2] CPD power dissipation capacitance per package; VI = GND to VCC 1.5 V [3] [1] - 21 - - - ns - 7 15 19 22 ns - 76 - - - pF tpd is the same as tPHL and tPLH. [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. 11. Waveforms $Q(LQSXW 90 W3+/ W3/+ 9< 90 9; <QRXWSXW W7+/ W7/+ DDJ Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 6. Input (An, E3) to output (Yn) propagation delays and output transition times 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 9 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer ((LQSXW 90 W3+/ W3/+ 9< 90 9; <QRXWSXW W7+/ W7/+ DDJ Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 7. Input (E1, E2) to output (Yn) propagation delays and output transition times Table 8. Measurement points Type Input Output VM VM VX VY 74HC238 0.5VCC 0.5VCC 0.1VCC 0.9VCC 74HCT238 1.3 V 1.3 V 0.1VCC 0.9VCC 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 10 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 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 for 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 8. Test circuit for measuring switching times Table 9. Test data Type Input Load S1 position VI tr, tf CL RL tPHL, tPLH 74HC238 VCC 6 ns 15 pF, 50 pF 1 k open 74HCT238 3V 6 ns 15 pF, 50 pF 1 k open 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 11 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 12. Package outline 62SODVWLFVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP 627 ' ( $ ; F \ +( Y 0 $ = 4 $ $ $ $ SLQLQGH[ /S / H Z 0 ES GHWDLO; 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 Fig 9. -(,7$ (8523($1 352-(&7,21 ,668('$7( Package outline SOT109-1 (SO16) 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 12 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 6623SODVWLFVKULQNVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP ' 627 ( $ ; F \ +( Y 0 $ = 4 $ $ $ $ SLQLQGH[ /S / GHWDLO; Z 0 ES H 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 10. Package outline SOT338-1 (SSOP16) 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 13 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 76623SODVWLFWKLQVKULQNVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP ' 627 ( $ ; F \ +( Y 0 $ = 4 $ SLQLQGH[ $ $ $ /S / H GHWDLO; Z 0 ES PP VFDOH ',0(16,216 PPDUHWKHRULJLQDOGLPHQVLRQV 81,7 $ PD[ $ $ $ ES F ' ( H +( / /S 4 Y Z \ = PP R R 1RWHV 3ODVWLFRUPHWDOSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG 3ODVWLFLQWHUOHDGSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG 287/,1( 9(56,21 627 5()(5(1&(6 ,(& -('(& -(,7$ (8523($1 352-(&7,21 ,668('$7( 02 Fig 11. Package outline SOT403-1 (TSSOP16) 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 14 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer '+94)1SODVWLFGXDOLQOLQHFRPSDWLEOHWKHUPDOHQKDQFHGYHU\WKLQTXDGIODWSDFNDJHQROHDGV 627 WHUPLQDOVERG\[[PP % ' $ $ $ ( F GHWDLO; WHUPLQDO LQGH[DUHD WHUPLQDO LQGH[DUHD & H H E \ \ & Y 0 & $ % Z 0 & / (K H 'K ; PP VFDOH ',0(16,216 PPDUHWKHRULJLQDOGLPHQVLRQV 81,7 $ PD[ $ E F ' 'K ( (K H H / Y Z \ \ PP 1RWH 3ODVWLFRUPHWDOSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG 5()(5(1&(6 287/,1( 9(56,21 ,(& -('(& -(,7$ 627 02 (8523($1 352-(&7,21 ,668('$7( Fig 12. Package outline SOT763-1 (DHVQFN16) 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 15 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 13. Abbreviations Table 10. Abbreviations Acronym Description CMOS Complementary Metal Oxide Semiconductor DUT Device Under Test ESD ElectroStatic Discharge HBM Human Body Model MM Machine Model TTL Transistor-Transistor Logic 14. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes 74HC_HCT238 v.4 20160127 Product data sheet - Modifications: 74HC_HCT238 v.3 Modifications: 74HC_HCT238_CNV v.2 74HC_HCT238 Product data sheet * 74HC_HCT238 v.3 Type numbers 74HC238N and 74HCT238N (SOT38-4) removed. 20070716 Product data sheet - 74HC_HCT238_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. Added type number 74HC238BQ and 74HCT238BQ (DHVQFN16 package) 19970828 Product specification - - All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 16 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 15. Legal information 15.1 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. 15.2 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. 15.3 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_HCT238 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. 4 -- 27 January 2016 17 of 19 (c) Nexperia B.V. 2017. All rights reserved 74HC238; 74HCT238 Nexperia 3-to-8 line decoder/demultiplexer 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. 15.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 16. Contact information For more information, please visit: http://www.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com 74HC_HCT238 Product data sheet All information provided in this document is subject to legal disclaimers. . Rev. 4 -- 27 January 2016 18 of 19 (c) Nexperia B.V. 2017. All rights reserved Nexperia 74HC238; 74HCT238 3-to-8 line decoder/demultiplexer 17. Contents 1 2 3 4 5 5.1 5.2 6 7 8 9 10 11 12 13 14 15 15.1 15.2 15.3 15.4 16 17 (c) General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 1 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 4 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functional description . . . . . . . . . . . . . . . . . . . 5 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5 Recommended operating conditions. . . . . . . . 6 Static characteristics. . . . . . . . . . . . . . . . . . . . . 6 Dynamic characteristics . . . . . . . . . . . . . . . . . . 8 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 12 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 16 Legal information. . . . . . . . . . . . . . . . . . . . . . . 17 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 17 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Contact information. . . . . . . . . . . . . . . . . . . . . 18 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 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: 27 January 2016