74AHC240; 74AHCT240 Octal buffer/line driver; inverting; 3-state Rev. 2 — 26 November 2010 Product data sheet 1. General description The 74AHC240 and 74AHCT240 are 8-bit inverting buffer/line drivers with 3-state outputs. These devices can be used as two 4-bit buffers or one 8-bit buffer. They feature two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Inputs are over voltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments. 2. Features and benefits Balanced propagation delays All inputs have a Schmitt-trigger action Inputs accepts voltages higher than VCC For 74AHC240 only: operates with CMOS input levels For 74AHCT240 only: operates with TTL input levels ESD protection: HBM JESD22-A114F exceeds 2000 V CDM JESD22-C101D exceeds 1000 V Multiple package options Specified from 40 C to +85 C and from 40 C to +125 C 3. Ordering information Table 1. Ordering information Type number 74AHC240D 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 TSSOP20 plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1 40 C to +125 C DHVQFN20 plastic dual in-line compatible thermal enhanced SOT764-1 very thin quad flat package; no leads; 20 terminals; body 2.5 4.5 0.85 mm 74AHCT240D 74AHC240PW 74AHCT240PW 74AHC240BQ 74AHCT240BQ 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state 4. Functional diagram 1 2 1A0 17 2A0 1Y0 18 2Y0 3 4 1A1 15 2A1 1Y1 16 2Y1 5 6 1A2 1Y2 14 13 2A2 2Y2 8 1A3 11 2A3 1Y3 12 2Y3 9 1 1OE 19 2OE 2 18 4 16 6 14 8 12 19 Fig 1. 7 EN EN 11 9 13 7 15 5 17 3 mgu778 mgu779 Logic symbol Fig 2. IEC logic symbol 5. Pinning information 5.1 Pinning 1 terminal 1 index area 74AHC240 74AHCT240 1OE 1 1A0 2 20 VCC 1OE 74AHC240 74AHCT240 1A0 2 19 2OE 2Y0 3 18 1Y0 20 VCC 19 2OE 1A1 4 17 2A0 5 16 1Y1 2Y0 3 18 1Y0 2Y1 1A1 4 17 2A0 1A2 6 15 2A1 2Y1 5 16 1Y1 2Y2 7 14 1Y2 1A2 6 15 2A1 1A3 8 2Y2 7 14 1Y2 1A3 8 13 2A2 2Y3 9 2Y3 9 12 1Y3 GND 10 11 2A3 GND(1) 13 2A2 2A3 11 GND 10 12 1Y3 001aal193 Transparent top view 001aal192 (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 3. Pin configuration SO20 and TSSOP20 74AHC_AHCT240 Product data sheet Fig 4. Pin configuration DHVQFN20 All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 2 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state 5.2 Pin description Table 2. Pin description Symbol Pin Description 1OE 1 output enable input (active LOW) 2OE 19 output enable input (active LOW) 1A0, 1A1, 1A2, 1A3 2, 4, 6, 8 data input 2A0, 2A1, 2A2, 2A3 17, 15, 13, 11 data input 1Y0, 1Y1, 1Y2, 1Y3 18, 16, 14, 12 data output 2Y0, 2Y1, 2Y2, 2Y3 3, 5, 7, 9 data output GND 10 ground (0 V) VCC 20 power supply 6. Functional description Table 3. Function table[1] Control Input Output nOE nAn nYn L L H L H L H 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 VI input voltage IIK input clamping current VI < 0.5 V [1] IOK output clamping current VO < 0.5 V or VO > VCC + 0.5 V [1] IO output current VO = 0.5 V to (VCC + 0.5 V) ICC IGND Tstg storage temperature [1] [2] Min Max Unit 0.5 +7.0 V 0.5 +7.0 V 20 - mA - 20 mA - 25 mA supply current - 75 mA ground current 75 - mA 65 +150 C - 500 mW total power dissipation Ptot Conditions Tamb = 40 C to +125 C [2] The minimum 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 8.0 mW/K. For TSSOP20 package: above 60 C the value of Ptot derates linearly with 5.5 mW/K. For DHVQFN20 package: above 60 C the value of Ptot derates linearly with 4.5 mW/K. 74AHC_AHCT240 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 3 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state 8. Recommended operating conditions Table 5. Recommended operating conditions Symbol Parameter Conditions Min Typ Max Unit 2.0 5.0 5.5 V 74AHC240 VCC supply voltage VI input voltage 0 - 5.5 V VO output voltage 0 - VCC V Tamb ambient temperature 40 +25 +125 C t/V input transition rise and fall rate VCC = 3.3 V 0.3 V - - 100 ns/V VCC = 5 V 0.5 V - - 20 ns/V 74AHCT240 VCC supply voltage 4.5 5.0 5.5 V VI input voltage 0 - 5.5 V VO output voltage 0 - VCC V Tamb ambient temperature 40 +25 +125 C t/V input transition rise and fall rate - - 20 ns/V VCC = 5 V 0.5 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 - - 1.5 - 1.5 - V VCC = 3.0 V 2.1 - - 2.1 - 2.1 - V VCC = 5.5 V 3.85 - - 3.85 - 3.85 - V VCC = 2.0 V - - 0.5 - 0.5 - 0.5 V VCC = 3.0 V - - 0.9 - 0.9 - 0.9 V VCC = 5.5 V - - 1.65 - 1.65 - 1.65 V HIGH-level VI = VIH or VIL output voltage IO = 50 A; VCC = 2.0 V 1.9 2.0 - 1.9 - 1.9 - V IO = 50 A; VCC = 3.0 V 2.9 3.0 - 2.9 - 2.9 - V IO = 50 A; VCC = 4.5 V 4.4 4.5 - 4.4 - 4.4 - V IO = 4.0 mA; VCC = 3.0 V 2.58 - - 2.48 - 2.40 - V IO = 8.0 mA; VCC = 4.5 V 3.94 - - 3.80 - 3.70 - V LOW-level VI = VIH or VIL output voltage IO = 50 A; VCC = 2.0 V - 0 0.1 - 0.1 - 0.1 V IO = 50 A; VCC = 3.0 V - 0 0.1 - 0.1 - 0.1 V IO = 50 A; VCC = 4.5 V - 0 0.1 - 0.1 - 0.1 V IO = 4.0 mA; VCC = 3.0 V - - 0.36 - 0.44 - 0.55 V IO = 8.0 mA; VCC = 4.5 V - - 0.36 - 0.44 - 0.55 V 74AHC240 VIH VIL VOH VOL HIGH-level input voltage LOW-level input voltage 74AHC_AHCT240 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 4 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state Table 6. Static characteristics …continued 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 II input leakage current VI = 5.5 V or GND; VCC = 0 V to 5.5 V - - 0.1 - 1.0 - 2.0 A IOZ OFF-state VI = VIH or VIL; output current VO = VCC or GND; VCC = 5.5 V - - 0.25 - 2.5 - 10.0 A ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 4.0 - 40 - 80 A CI input capacitance - 3 10 - 10 - 10 pF CO output capacitance - 4 - - - - - pF VI = VCC or GND 74AHCT240 VIH HIGH-level input voltage VCC = 4.5 V to 5.5 V 2.0 - - 2.0 - 2.0 - V VIL LOW-level input voltage VCC = 4.5 V to 5.5 V - - 0.8 - 0.8 - 0.8 V VOH HIGH-level VI = VIH or VIL; VCC = 4.5 V output voltage IO = 50 A IO = 8.0 mA VOL LOW-level VI = VIH or VIL; VCC = 4.5 V output voltage IO = 50 A IO = 8.0 mA 4.5 - 4.4 - 4.4 - V - - 3.80 - 3.70 - V - 0 0.1 - 0.1 - 0.1 V - - 0.36 - 0.44 - 0.55 V - - 0.1 - 1.0 - 2.0 A II input leakage current IOZ OFF-state VI = VIH or VIL; output current VO = VCC or GND per input pin; other inputs at VCC or GND; IO = 0 A; VCC = 5.5 V - - 0.25 - 2.5 - 10.0 A ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 4.0 - 40 - 80 A ICC additional per input pin; supply current VI = VCC 2.1 V; other pins at VCC or GND; IO = 0 A; VCC = 4.5 V to 5.5 V - - 1.35 - 1.5 - 1.5 mA CI input capacitance - 3 10 - 10 - 10 pF CO output capacitance - 4 - - - - - pF 74AHC_AHCT240 Product data sheet VI = 5.5 V or GND; VCC = 0 V to 5.5 V 4.4 3.94 VI = VCC or GND All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 5 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state 10. Dynamic characteristics Table 7. Dynamic characteristics Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7. Symbol Parameter 25 C Conditions 40 C to +125 C Min Typ[1] Max Min Max (85 C) Max (125 C) - 3.9 7.5 1.0 8.6 10.8 Unit 74AHC240 tpd propagation delay nAn to nYn; see Figure 5 [2] VCC = 3.0 V to 3.6 V; CL = 15 pF VCC = 3.0 V to 3.6 V; CL = 50 pF - 5.8 11.0 1.0 12.5 15.6 ns VCC = 4.5 V to 5.5 V; CL = 15 pF - 2.8 4.8 1.0 5.7 7.1 ns - 4.2 7.3 1.0 8.5 10.6 ns VCC = 3.0 V to 3.6 V; CL = 15 pF - 4.4 10.0 1.0 12.0 19.4 ns VCC = 3.0 V to 3.6 V; CL = 50 pF - 5.8 13.5 1.0 15.5 19.4 ns VCC = 4.5 V to 5.5 V; CL = 15 pF - 3.1 6.5 1.0 7.7 12.5 ns - 4.1 8.5 1.0 10.0 12.5 ns VCC = 3.0 V to 3.6 V; CL = 15 pF - 5.3 9.0 1.0 10.0 18.1 ns VCC = 3.0 V to 3.6 V; CL = 50 pF - 8.9 13.0 1.0 14.5 18.1 ns VCC = 4.5 V to 5.5 V; CL = 15 pF - 3.9 5.8 1.0 6.5 8.1 ns - 6.2 8.7 1.0 9.5 11.8 ns - 9 - - - - pF VCC = 4.5 V to 5.5 V; CL = 50 pF ten enable time nOE to nYn; see Figure 6 [2] VCC = 4.5 V to 5.5 V; CL = 50 pF tdis disable time nOE to nYn; see Figure 6 [2] VCC = 4.5 V to 5.5 V; CL = 50 pF CPD power dissipation capacitance 74AHC_AHCT240 Product data sheet ns VI = GND to VCC; CL = 50 pF; fi = 1 MHz [3] All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 6 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state Table 7. Dynamic characteristics …continued Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7. Symbol Parameter 25 C Conditions 40 C to +125 C Unit Min Typ[1] Max Min Max (85 C) Max (125 C) - 3.0 5.8 1.0 6.8 8.5 ns - 4.4 8.4 1.0 9.5 11.9 ns - 3.4 7.5 1.0 9.0 14.4 ns - 4.5 9.5 1.0 11.5 14.4 ns 74AHCT240 propagation delay tpd [2] nAn to nYn; see Figure 5 VCC = 4.5 V to 5.5 V; CL = 15 pF VCC = 4.5 V to 5.5 V; CL = 50 pF enable time ten [2] nOE to nYn; see Figure 6 VCC = 4.5 V to 5.5 V; CL = 15 pF VCC = 4.5 V to 5.5 V; CL = 50 pF disable time tdis power dissipation capacitance CPD [2] nOE to nYn; see Figure 6 VCC = 4.5 V to 5.5 V; CL = 15 pF - 3.9 6.1 1.0 6.7 8.3 ns VCC = 4.5 V to 5.5 V; CL = 50 pF - 6.2 8.7 1.0 9.2 11.5 ns - 9 - - - - pF [3] VI = GND to VCC; CL = 50 pF; fi = 1 MHz [1] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V). [2] tpd is the same as tPLH and tPHL; ten is the same as tPZH and tPZL; tdis is the same as tPLZ and tPHZ. [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 VI nAn input VM VM GND tPHL tPLH VOH VM nYn output VM VOL mgu781 Measurement points are given in Table 8. VOL and VOH are typical voltage output drop that occur with the output load. Fig 5. Propagation delay input (nAn) to output (nYn) 74AHC_AHCT240 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 7 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state VI nOE input VM GND tPLZ tPZL VCC nYn output LOW-to-OFF OFF-to-LOW VM VX VOL tPHZ tPZH VOH VY nYn output HIGH-to-OFF OFF-to-HIGH VM GND outputs enabled outputs enabled outputs disabled mgu782 Measurement points are given in Table 8. VOL and VOH are typical voltage output drop that occur with the output load. Fig 6. Enable and disable times Table 8. Measurement points Type Input Output VM VM VX VY 74AHC240 0.5VCC 0.5VCC VOL + 0.3 V VOH 0.3 V 74AHCT240 1.5 V 0.5VCC VOL + 0.3 V VOH 0.3 V 74AHC_AHCT240 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 8 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state VI tW 90 % negative pulse VM 0V tf tr tr tf VI 90 % positive pulse 0V VM 10 % VM VM 10 % tW VCC VCC G VI VO RL S1 open DUT CL RT 001aad983 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. Load circuitry for switching times Table 9. Test data Type Input VI tr, tf CL RL tPHL, tPLH tPZH, tPHZ tPZL, tPLZ 74AHC240 VCC 3.0 ns 15 pF, 50 pF 1 k open GND VCC 74AHCT240 3.0 V 3.0 ns 15 pF, 50 pF 1 k open GND VCC 74AHC_AHCT240 Product data sheet Load S1 position All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 9 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state 12. Package outline SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 D E A X c HE y v M A Z 20 11 Q A2 A (A 3) A1 pin 1 index θ Lp L 10 1 e bp detail X w M 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y mm 2.65 0.3 0.1 2.45 2.25 0.25 0.49 0.36 0.32 0.23 13.0 12.6 7.6 7.4 1.27 10.65 10.00 1.4 1.1 0.4 1.1 1.0 0.25 0.25 0.1 0.01 0.019 0.013 0.014 0.009 0.51 0.49 0.30 0.29 0.05 0.419 0.043 0.055 0.394 0.016 inches 0.1 0.012 0.096 0.004 0.089 0.043 0.039 0.01 0.01 Z (1) 0.9 0.4 0.035 0.004 0.016 θ 8o o 0 Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. Fig 8. REFERENCES OUTLINE VERSION IEC JEDEC SOT163-1 075E04 MS-013 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 Package outline SOT163-1 (SO20) 74AHC_AHCT240 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 10 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1 E D A X c HE y v M A Z 11 20 Q A2 (A 3) A1 pin 1 index A θ Lp L 1 10 e detail X w M bp 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) θ mm 1.1 0.15 0.05 0.95 0.80 0.25 0.30 0.19 0.2 0.1 6.6 6.4 4.5 4.3 0.65 6.6 6.2 1 0.75 0.50 0.4 0.3 0.2 0.13 0.1 0.5 0.2 8o o 0 Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT360-1 Fig 9. REFERENCES IEC JEDEC JEITA MO-153 EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 Package outline SOT360-1 (TSSOP20) 74AHC_AHCT240 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 11 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state DHVQFN20: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; SOT764-1 20 terminals; body 2.5 x 4.5 x 0.85 mm A B D A A1 E c detail X terminal 1 index area terminal 1 index area C e1 e 2 9 y y1 C v M C A B w M C b L 1 10 Eh e 20 11 19 12 Dh X 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A(1) max. A1 b c D (1) Dh E (1) Eh e e1 L v w y y1 mm 1 0.05 0.00 0.30 0.18 0.2 4.6 4.4 3.15 2.85 2.6 2.4 1.15 0.85 0.5 3.5 0.5 0.3 0.1 0.05 0.05 0.1 Note 1. Plastic or metal protrusions of 0.075 mm maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC JEITA SOT764-1 --- MO-241 --- EUROPEAN PROJECTION ISSUE DATE 02-10-17 03-01-27 Fig 10. Package outline SOT764-1 (DHVQFN20) 74AHC_AHCT240 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 12 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state 13. Abbreviations Table 10. Abbreviations Acronym Description CDM Charge Device Model CMOS Complementary Metal Oxide Semiconductor DUT Device Under Test ESD ElectroStatic Discharge HBM Human Body Model TTL Transistor-Transistor Logic 14. Revision history Table 11. Revision history Document ID Release date 74AHC_AHCT240 v.2 20101126 Modifications: • Product data sheet Change notice Supersedes Product data sheet - 74AHC_AHCT240 v.1 - - Figure note [1] of Figure 4: changed. 74AHC_AHCT240 v.1 20100111 74AHC_AHCT240 Data sheet status Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 13 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state 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.nxp.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. NXP Semiconductors 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 NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. 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This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use in automotive applications — This NXP Semiconductors product has been qualified for use in automotive applications. The product is not designed, authorized or warranted to be 74AHC_AHCT240 Product data sheet suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors 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. NXP Semiconductors 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 NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NXP Semiconductors 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. NXP Semiconductors 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 NXP Semiconductors 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). NXP 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 — NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.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. NXP Semiconductors hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of NXP Semiconductors 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. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 14 of 16 74AHC240; 74AHCT240 NXP Semiconductors Octal buffer/line driver; inverting; 3-state 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 national authorities. 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.nxp.com For sales office addresses, please send an email to: [email protected] 74AHC_AHCT240 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 26 November 2010 © NXP B.V. 2010. All rights reserved. 15 of 16 NXP Semiconductors 74AHC240; 74AHCT240 Octal buffer/line driver; inverting; 3-state 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 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 . . . . . . . . . . . . . . . . . . 6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 10 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 13 Legal information. . . . . . . . . . . . . . . . . . . . . . . 14 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 14 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Contact information. . . . . . . . . . . . . . . . . . . . . 15 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2010. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] Date of release: 26 November 2010 Document identifier: 74AHC_AHCT240