74VHC125FT,74VHC126FT CMOS Digital Integrated Circuits Silicon Monolithic 74VHC125FT,74VHC126FT74VHC125FT,74VHC126FT74VHC125FT,74VHC126FT74VHC125FT,74VHC126FT 1. 1. Functional DescriptionFunctional Description 1. 1. Functional DescriptionFunctional Description Quad Bus Buffer, Non-Inverted 3-State Outputs 74VHC125FT: Quad Bus Buffer 74VHC126FT: Quad Bus Buffer 2. 2. 2. 2. GeneralGeneralGeneralGeneral The 74VHC125FT,74VHC126FT are high speed CMOS QUAD BUS BUFFERs fabricated with silicon gate C2MOS technology. They achieve the high speed operation similar to equivalent Bipolar Shottky TTL while maintaining the CMOS low power dissipation. The 74VHC125FT requires the 3-state control input G to be set high to place the output into the high impedance state, whereas the 74VHC126FT requires the control input G to be set low to place the output into high impedance. An input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages. 3. 3. FeaturesFeatures 3. 3. FeaturesFeatures (1) AEC-Q100 (Rev. H) (Note 1) (2) Wide operating temperature: T = -40 to 125 opr (3) High speed: Propagation delay time = 3.8 ns (typ.) at V = 5 V CC (4) Low power dissipation: I = 4.0 A (max) at T = 25 CC a (5) High noise immunity: V = V = 28 % V (min) NIH NIL CC (6) Power down protection is provided on all inputs. (7) Balanced propagation delays: t t PLH PHL (8) Wide operating voltage range: V = 2.0 V to 5.5 V CC(opr) (9) Low noise: V = 0.8 V (max) OLP (10) Pin and function compatible with 74 series (AC/HC/AHC/LV etc.) 125 or 126 type. Note 1: This device is compliant with the reliability requirements of AEC-Q100. For details, contact your Toshiba sales representative. 4. 4. 4. 4. PackagingPackagingPackagingPackaging TSSOP14B Start of commercial production 2013-06 2016 Toshiba Corporation 2016-08-18 1 Rev.4.074VHC125FT,74VHC126FT 5. 5. 5. 5. Pin AssignmentPin AssignmentPin AssignmentPin Assignment 74VHC125FT 74VHC126FT 6. 6. 6. 6. MarkingMarkingMarkingMarking 74VHC125FT 74VHC126FT 7. 7. 7. 7. IEC Logic SymbolIEC Logic SymbolIEC Logic SymbolIEC Logic Symbol 74VHC125FT 74VHC126FT 2016 Toshiba Corporation 2016-08-18 2 Rev.4.0