74AHC244-Q100; 74AHCT244-Q100 Octal buffer/line driver; 3-state Rev. 1 — 9 July 2012 Product data sheet 1. General description The 74AHC244-Q100; 74AHCT244-Q100 is a high-speed Si-gate CMOS device. The 74AHC244-Q100; 74AHCT244-Q100 has octal non-inverting buffer/line drivers with 3-state outputs. The 3-state outputs are controlled by the output enable inputs (nOE). A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications. 2. Features and benefits Automotive product qualification in accordance with AEC-Q100 (Grade 1) Specified from 40 C to +85 C and from 40 C to +125 C Balanced propagation delays All inputs have a Schmitt trigger action Inputs accept voltages higher than VCC For 74AHC244-Q100 only: operates with CMOS input levels For 74AHCT244-Q100 only: operates with TTL input levels ESD protection: MIL-STD-883, method 3015 exceeds 2000 V HBM JESD22-A114F exceeds 2000 V MM JESD22-A115-A exceeds 200 V (C = 200 pf, R = 0 ) Multiple package options NXP Semiconductors 74AHC244-Q100; 74AHCT244-Q100 Octal buffer/line driver; 3-state 3. Ordering information Table 1. Ordering information Type number 74AHC244D-Q100 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; SOT360-1 body width 4.4 mm 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 74AHCT244D-Q100 74AHC244PW-Q100 74AHCT244PW-Q100 74AHC244BQ-Q100 74AHCT244BQ-Q100 4. Functional diagram 2 4 6 8 1 17 15 13 11 19 1A0 1Y0 1A1 1Y1 1A2 1Y2 1A3 1Y3 18 16 14 12 1OE 2A0 2Y0 2A1 2Y1 2A2 2Y2 2A3 2Y3 3 5 7 9 2OE mna170 Fig 1. Functional diagram 74AHC_AHCT244_Q100 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 2 of 17 74AHC244-Q100; 74AHCT244-Q100 NXP Semiconductors Octal buffer/line driver; 3-state 1 1A0 1A1 2 18 4 16 1Y0 2A0 1Y1 2A1 17 3 15 5 2Y0 2 18 4 16 6 14 8 12 2Y1 19 1A2 1A3 1OE 6 14 8 12 1 1Y2 1Y3 2A2 2A3 2OE 13 7 11 9 EN 2Y2 2Y3 19 EN 11 9 13 7 15 5 17 3 mna873 mna874 Fig 2. Logic symbol Fig 3. IEC logic symbol 5. Pinning information 5.1 Pinning 1 terminal 1 index area 74AHC244-Q100 74AHCT244-Q100 20 VCC 1OE 74AHC244-Q100 74AHCT244-Q100 1A0 2 19 2OE 2Y0 3 18 1Y0 1A1 4 17 2A0 1OE 1 20 VCC 1A0 2 19 2OE 2Y0 3 18 1Y0 2Y1 5 16 1Y1 6 15 2A1 7 4 17 2A0 2Y1 5 16 1Y1 2Y2 1A2 6 15 2A1 2Y2 7 14 1Y2 1A3 8 13 2A2 2Y3 9 12 1Y3 GND 10 11 2A3 8 2Y3 9 13 2A2 12 1Y3 GND 10 1A3 14 1Y2 GND(1) 2A3 11 1A1 1A2 aaa-003141 Transparent top view aaa-003140 (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 SO20, TSSOP20 74AHC_AHCT244_Q100 Product data sheet Fig 5. Pin configuration DHVQFN20 All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 3 of 17 74AHC244-Q100; 74AHCT244-Q100 NXP Semiconductors Octal buffer/line driver; 3-state 5.2 Pin description Table 2. Pin description Symbol Pin Description 1OE, 2OE 1, 19 output enable input (active LOW) 1A[0:3] 2, 4, 6, 8 data input 2A[0:3] 17, 15, 13, 11 data input 1Y[0:3] 18, 16, 14, 12 data output 2Y[0:3] 3, 5, 7, 9 data output GND 10 ground (0 V) VCC 20 supply voltage 6. Functional description Table 3. Function table[1] Control Input Output nOE nAn nYn L L L H H X Z H [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 Conditions Min Max Unit 0.5 +7.0 V 0.5 +7.0 V IIK input clamping current VI < 0.5 V [1] IOK output clamping current VO < 0.5 V or VO > VCC + 0.5 V [1] 20 - mA - 20 mA IO output current VO = 0.5 V to (VCC + 0.5 V) - 25 mA ICC supply current - 75 mA IGND ground current 75 - mA Tstg storage temperature 65 +150 C Ptot total power dissipation Tamb = 40 C to +125 C SO20 package [2] - 500 mW TSSOP20 package [3] - 500 mW DHVQFN20 package [4] - 500 mW [1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed. [2] Ptot derates linearly with 8 mW/K above 70 C. [3] Ptot derates linearly with 5.5 mW/K above 60 C. [4] Ptot derates linearly with 4.5 mW/K above 60 C. 74AHC_AHCT244_Q100 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 4 of 17 74AHC244-Q100; 74AHCT244-Q100 NXP Semiconductors Octal buffer/line driver; 3-state 8. Recommended operating conditions Table 5. Recommended operating conditions Voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions 74AHC244-Q100 Min Typ 74AHCT244-Q100 Max Min Typ Unit Max VCC supply voltage 2.0 5.0 5.5 4.5 5.0 5.5 V VI input voltage 0 - 5.5 0 - 5.5 V VO output voltage 0 - VCC 0 - VCC V Tamb ambient temperature 40 +25 +125 40 +25 +125 C t/V input transition rise and fall rate VCC = 3.3 V 0.3 V - - 100 - - - ns/V VCC = 5.0 V 0.5 V - - 20 - - 20 ns/V 9. Static characteristics Table 6. Static characteristics 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 74AHC244-Q100 VIH VIL VOH VOL HIGH-level input voltage LOW-level input voltage 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 - - 3.8 - 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 IOZ OFF-state VI = VIH or VIL; output current VO = VCC or GND; VCC = 5.5 V - - 0.25 - 2.5 - 10.0 A II input leakage current - - 0.1 - 1.0 - 2.0 A ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 4.0 - 40 - 80 A 74AHC_AHCT244_Q100 Product data sheet VI = 5.5 V or GND; VCC = 0 V to 5.5 V All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 5 of 17 NXP Semiconductors 74AHC244-Q100; 74AHCT244-Q100 Octal buffer/line driver; 3-state Table 6. Static characteristics …continued 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 CI input capacitance - 3.0 10 - 10 - 10 pF CO output capacitance - 4.0 - - - - - pF 74AHCT244-Q100 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 4.4 4.5 - 4.4 - 4.4 - V 3.94 - - 3.8 - 3.70 - V IO = 8.0 mA VOL LOW-level VI = VIH or VIL; VCC = 4.5 V output voltage IO = 50 A IO = 8.0 mA IOZ OFF-state per input pin; VI = VIH or VIL; output current VCC = 5.5 V; IO = 0 A - 0 0.1 - 0.1 - 0.1 V - - 0.36 - 0.44 - 0.55 V - - 0.25 - 2.5 - 10.0 A - - 0.1 - 1.0 - 2.0 A VO = VCC or GND; other pins at VCC or GND II input leakage current 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; IO = 0 A; other pins at VCC or GND; 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 - 4.0 - - - - - pF 74AHC_AHCT244_Q100 Product data sheet VI = 5.5 V or GND; VCC = 0 V to 5.5 V All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 6 of 17 NXP Semiconductors 74AHC244-Q100; 74AHCT244-Q100 Octal buffer/line driver; 3-state 10. Dynamic characteristics Table 7. Dynamic characteristics GND = 0 V. For test circuit see Figure 8. Symbol Parameter 25 C Conditions 40 C to +85 C 40 C to +125 C Unit Min Typ[1] Max Min Max Min Max CL = 15 pF - 5.0 8.4 1.0 10.0 1.0 10.5 ns CL = 50 pF - 7.0 11.9 1.0 13.5 1.0 15.0 ns - 3.4 5.5 1.0 6.5 1.0 7.0 ns 5.0 7.5 1.0 8.5 1.0 9.5 ns 74AHC244-Q100 tpd propagation delay nAn to nYn; see Figure 6 [2] VCC = 3.0 V to 3.6 V VCC = 4.5 V to 5.5 V CL = 15 pF CL = 50 pF ten enable time nOE to nYn; see Figure 7 [2] VCC = 3.0 V to 3.6 V CL = 15 pF - 6.5 10.6 1.0 12.5 1.0 13.5 ns CL = 50 pF - 7.5 14.1 1.0 16.0 1.0 18.0 ns - 4.0 7.3 1.0 8.5 1.0 9.5 ns - 5.5 9.3 1.0 10.5 1.0 12.0 ns CL = 15 pF - 5.5 9.7 1.0 11.0 1.0 12.5 ns CL = 50 pF - 10.0 14.0 1.0 16.0 1.0 17.5 ns CL = 15 pF - 4.8 7.2 1.0 8.5 1.0 9.0 ns CL = 50 pF - 7.0 9.2 1.0 10.5 1.0 11.5 ns - 10 - - - - - pF VCC = 4.5 V to 5.5 V CL = 15 pF CL = 50 pF tdis disable time nOE to nYn; see Figure 7 [2] VCC = 3.0 V to 3.6 V VCC = 4.5 V to 5.5 V CPD power dissipation capacitance 74AHC_AHCT244_Q100 Product data sheet CL = 50 pF; fi = 1 MHz; VI = GND to VCC [3] All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 7 of 17 74AHC244-Q100; 74AHCT244-Q100 NXP Semiconductors Octal buffer/line driver; 3-state Table 7. Dynamic characteristics …continued GND = 0 V. For test circuit see Figure 8. Symbol Parameter 25 C Conditions 40 C to +85 C 40 C to +125 C Unit Min Typ[1] Max Min Max Min Max CL = 15 pF - 3.5 7.4 1.0 8.5 1.0 9.5 ns CL = 50 pF - 5.0 8.4 1.0 9.5 1.0 10.5 ns - 3.5 10.4 1.0 12.0 1.0 13.0 ns - 5.5 11.4 1.0 13.0 1.0 14.5 ns - 5.0 9.4 1.0 10.0 1.0 12.0 ns - 7.0 11.4 1.0 13.0 1.0 14.5 ns - 12 - - - - - pF 74AHCT244-Q100 propagation delay tpd enable time ten nAn to nYn; see Figure 6 [2] VCC = 4.5 V to 5.5 V nOE to nYn; see Figure 7 VCC = 4.5 V to 5.5 V CL = 15 pF CL = 50 pF disable time nOE to nYn; see Figure 7 tdis [2] VCC = 4.5 V to 5.5 V CL = 15 pF CL = 50 pF power dissipation capacitance CPD per buffer; CL = 50 pF; f = 1 MHz; VI = GND to VCC [3] [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 tPZL and tPZH. tdis is the same as tPLZ and tPHZ. [3] CPD is used to determine the dynamic power dissipation PD (W). PD = CPD VCC2 fi + (CL VCC2 fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in Volts. 11. Waveforms VI nAn input VM VM GND tPLH tPHL VOH VM nYn output VM VOL mna171 Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 6. Propagation delay input (nAn) to output (nYn) 74AHC_AHCT244_Q100 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 8 of 17 74AHC244-Q100; 74AHCT244-Q100 NXP Semiconductors Octal buffer/line driver; 3-state VI nOE input VM GND t PLZ t PZL VCC nYn output LOW-to-OFF OFF-to-LOW VM VX VOL t PZH t PHZ VOH VY nYn output HIGH-to-OFF OFF-to-HIGH VM GND outputs enabled outputs disabled outputs enabled 001aae014 Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 7. Table 8. enable and disable times Measurement points Type Input Output VM VM VX VY 74AHC244-Q100 0.5VCC 0.5VCC VOL + 0.3 V VOH 0.3 V 74AHCT244-Q100 1.5 V 0.5VCC VOL + 0.3 V VOH 0.3 V 74AHC_AHCT244_Q100 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 9 of 17 74AHC244-Q100; 74AHCT244-Q100 NXP Semiconductors Octal buffer/line driver; 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 resistor S1 = Test selection switch Fig 8. Table 9. Test circuit for measuring switching times Test data Type 74AHC244-Q100 Input Product data sheet S1 position VI tr, tf CL RL tPHL, tPLH tPZH, tPHZ tPZL, tPLZ VCC 3.0 ns 15 pF, 50 pF 1 k open GND VCC 3.0 ns 15 pF, 50 pF 1 k open GND VCC 74AHCT244-Q100 3.0 V 74AHC_AHCT244_Q100 Load All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 10 of 17 74AHC244-Q100; 74AHCT244-Q100 NXP Semiconductors Octal buffer/line driver; 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 9. 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_AHCT244_Q100 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 11 of 17 74AHC244-Q100; 74AHCT244-Q100 NXP Semiconductors Octal buffer/line driver; 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 REFERENCES IEC JEDEC JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 MO-153 Fig 10. Package outline SOT360-1 (TSSOP20) 74AHC_AHCT244_Q100 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 12 of 17 74AHC244-Q100; 74AHCT244-Q100 NXP Semiconductors Octal buffer/line driver; 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 mm A(1) max. A1 b 1 0.05 0.00 0.30 0.18 c D (1) Dh E (1) Eh 0.2 4.6 4.4 3.15 2.85 2.6 2.4 1.15 0.85 e 0.5 e1 L v w y y1 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 11. Package outline SOT764-1 (DHVQFN20) 74AHC_AHCT244_Q100 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 13 of 17 74AHC244-Q100; 74AHCT244-Q100 NXP Semiconductors Octal buffer/line driver; 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 MM Machine Model TTL Transistor-Transistor Logic MIL Military 14. Revision history Table 11. Revision history Document ID Release date 74AHC_AHCT244_Q100 v.1 20120709 74AHC_AHCT244_Q100 Product data sheet Data sheet status Change notice Supersedes Product data sheet - All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 - © NXP B.V. 2012. All rights reserved. 14 of 17 NXP Semiconductors 74AHC244-Q100; 74AHCT244-Q100 Octal buffer/line driver; 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. Product specification — The information and data provided in a Product data sheet shall define the specification of the product as agreed between NXP Semiconductors and its customer, unless NXP Semiconductors and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the NXP Semiconductors 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, NXP Semiconductors 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. NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors. In no event shall NXP Semiconductors 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, NXP Semiconductors’ 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 NXP Semiconductors. Right to make changes — NXP Semiconductors 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. 74AHC_AHCT244_Q100 Product data sheet Suitability for use in automotive applications — This NXP Semiconductors product has been qualified for use in automotive applications. Unless otherwise agreed in writing, the product is 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 an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors and its suppliers accept 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. All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 15 of 17 NXP Semiconductors 74AHC244-Q100; 74AHCT244-Q100 Octal buffer/line driver; 3-state 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. 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. 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. 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_AHCT244_Q100 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 July 2012 © NXP B.V. 2012. All rights reserved. 16 of 17 NXP Semiconductors 74AHC244-Q100; 74AHCT244-Q100 Octal buffer/line driver; 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 . . . . . . . . . . . . . . . . . . . . . 2 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functional description . . . . . . . . . . . . . . . . . . . 4 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 4 Recommended operating conditions. . . . . . . . 5 Static characteristics. . . . . . . . . . . . . . . . . . . . . 5 Dynamic characteristics . . . . . . . . . . . . . . . . . . 7 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 11 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 14 Legal information. . . . . . . . . . . . . . . . . . . . . . . 15 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 15 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Contact information. . . . . . . . . . . . . . . . . . . . . 16 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 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. 2012. 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: 9 July 2012 Document identifier: 74AHC_AHCT244_Q100