74VHCT244BQ,115

74VHC244; 74VHCT244 Octal buffer/line driver; 3-state Rev. 01 — 17 August 2009 Product data sheet 1. General description The 74VHC244; 74VHCT244 are a high-speed Si-gate CMOS devices. The 74VHC244; 74VHCT244 have 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. 2. Features n n n n Balanced propagation delays All inputs have a Schmitt-trigger action Inputs accepts voltages higher than VCC Input levels: u The 74VHC244 operates with CMOS input level u The 74VHCT244 operates with TTL input level n ESD protection: u HBM JESD22-A114E exceeds 2000 V u MM JESD22-A115-A exceeds 200 V u CDM JESD22-C101C exceeds 1000 V n Multiple package options n Specified from −40 °C to +85 °C and from −40 °C to +125 °C 3. Ordering information Table 1. Ordering information Type number 74VHC244D 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 74VHCT244D 74VHC244PW 74VHCT244PW 74VHC244BQ 74VHCT244BQ 74VHC244; 74VHCT244 Nexperia Octal buffer/line driver; 3-state 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 1 1A0 1A1 2 18 4 16 1Y0 2A0 1Y1 2A1 17 15 3 5 2Y0 2 18 4 16 6 14 8 12 2Y1 19 1A2 1A3 1OE 6 14 8 12 1 1Y2 2A2 1Y3 2A3 2OE 13 11 7 9 EN 2Y2 2Y3 19 EN 11 9 13 7 15 5 17 3 mna874 Fig 2. Logic symbol mna873 Fig 3. IEC logic symbol © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 2 of 16 74VHC244; 74VHCT244 Nexperia Octal buffer/line driver; 3-state 5. Pinning information 5.1 Pinning 1 terminal 1 index area 74VHC244 74VHCT244 20 VCC 1OE 74VHC244 74VHCT244 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 1A1 4 17 2A0 1A2 6 15 2A1 2Y1 5 16 1Y1 2Y2 7 1A2 6 15 2A1 2Y2 7 14 1Y2 1A3 8 13 2A2 2Y3 9 12 1Y3 GND 10 11 2A3 9 13 2A2 12 1Y3 2A3 11 8 2Y3 GND 10 1A3 14 1Y2 GND(1) 001aak058 Transparent top view 001aak057 (1) The die substrate is attached to this pad using conductive die attach material. It can not be used as a supply pin or input. Fig 4. Pin configuration SO20, TSSOP20 Fig 5. Pin configuration DHVQFN20 5.2 Pin description Table 2. Symbol Pin description Pin Description 1OE 1 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) 2OE 19 output enable input (active LOW) VCC 20 supply voltage © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 3 of 16 74VHC244; 74VHCT244 Nexperia Octal buffer/line driver; 3-state 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 Conditions 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) Min Max Unit −0.5 +7.0 V −0.5 +7.0 V −20 - mA - ±20 mA - ±25 mA ICC supply current - 75 mA IGND ground current −75 - mA Tstg storage temperature −65 +150 °C Ptot total power dissipation [1] Tamb = −40 °C to +125 °C SO20 package [2] - 500 mW TSSOP20 package [3] - 500 mW DHVQFN20 package [4] - 500 mW 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. © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 4 of 16 74VHC244; 74VHCT244 Nexperia 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 74VHC244 74VHCT244 Unit Min Typ Max Min Typ 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 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 µA; VCC = 2.0 V 1.9 2.0 - 1.9 - 1.9 - V IO = −50 µA; VCC = 3.0 V 2.9 3.0 - 2.9 - 2.9 - V IO = −50 µA; 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 For type 74VHC244 VIH VIL VOH VOL HIGH-level input voltage LOW-level input voltage 3.94 - - 3.8 - 3.70 - V LOW-level VI = VIH or VIL output voltage IO = 50 µA; VCC = 2.0 V - 0 0.1 - 0.1 - 0.1 V IO = 50 µA; VCC = 3.0 V - 0 0.1 - 0.1 - 0.1 V IO = 50 µA; 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 µA II input leakage current - - 0.1 - 1.0 - 2.0 µA ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 4.0 - 40 - 80 µA VI = 5.5 V or GND; VCC = 0 V to 5.5 V © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 5 of 16 74VHC244; 74VHCT244 Nexperia 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 For type 74VHCT244 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 µA 4.4 4.5 - 4.4 - 4.4 - V 3.94 - - 3.8 - 3.70 - V - 0 0.1 - 0.1 - 0.1 V - - 0.36 - 0.44 - 0.55 V - - ±0.25 - ±2.5 - ±10.0 µA - - 0.1 - 1.0 - 2.0 µA IO = −8.0 mA VOL LOW-level VI = VIH or VIL; VCC = 4.5 V output voltage IO = 50 µA IO = 8.0 mA IOZ OFF-state per input pin; VI = VIH or VIL; output current VCC = 5.5 V; IO = 0 A VO = VCC or GND; other pins at VCC or GND II input leakage current VI = 5.5 V or GND; VCC = 0 V to 5.5 V ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 4.0 - 40 - 80 µA ∆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 © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 6 of 16 74VHC244; 74VHCT244 Nexperia 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 For type 74VHC244 tpd propagation delay [2] nAn to nYn; see Figure 6 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 CL = 50 pF; fi = 1 MHz; dissipation VI = GND to VCC capacitance [3] © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 7 of 16 74VHC244; 74VHCT244 Nexperia 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 For type 74VHCT244 propagation delay tpd enable time ten [2] nAn to nYn; see Figure 6 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 tdis nOE to nYn; see Figure 7 [2] VCC = 4.5 V to 5.5 V CL = 15 pF CL = 50 pF power per buffer; dissipation CL = 50 pF; f = 1 MHz; capacitance VI = GND to VCC CPD [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 (µW). 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) © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 8 of 16 74VHC244; 74VHCT244 Nexperia 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. enable and disable times Table 8. Measurement points Type Input Output VM VM VX VY 74VHC244 0.5VCC 0.5VCC VOL + 0.3 V VOH − 0.3 V 74VHCT244 1.5 V 0.5VCC VOL + 0.3 V VOH − 0.3 V © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 9 of 16 74VHC244; 74VHCT244 Nexperia 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. Load circuitry for switching times Table 9. Test data Type Input Load S1 position VI tr, tf CL RL tPHL, tPLH tPZH, tPHZ tPZL, tPLZ 74VHC244 VCC 3.0 ns 15 pF, 50 pF 1 kΩ open GND VCC 74VHCT244 3.0 V 3.0 ns 15 pF, 50 pF 1 kΩ open GND VCC © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 10 of 16 74VHC244; 74VHCT244 Nexperia 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) © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 11 of 16 74VHC244; 74VHCT244 Nexperia 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) © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 12 of 16 74VHC244; 74VHCT244 Nexperia 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 A(1) max. A1 b 1 0.05 0.00 0.30 0.18 mm 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) © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 13 of 16 74VHC244; 74VHCT244 Nexperia 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 14. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes 74VHC_VHCT244_1 20090817 Product data sheet - - © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 14 of 16 74VHC244; 74VHCT244 Nexperia 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.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. 15.3 Disclaimers General — 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. 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. Suitability for use — Nexperia products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support 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 accepts 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. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale — Nexperia products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nexperia.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by Nexperia. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. 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. 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.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com © 74VHC_VHCT244_1 Product data sheet Rev. 01 — 17 August 2009 Nexperia B.V. 2017. All rights reserved 15 of 16 Nexperia 74VHC244; 74VHCT244 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 1 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Contact information. . . . . . . . . . . . . . . . . . . . . 15 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 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: 17 August 2009