74VHC245FT Toshiba

74VHC245FT CMOS Digital Integrated Circuits Silicon Monolithic 74VHC245FT74VHC245FT74VHC245FT74VHC245FT 1. 1. Functional DescriptionFunctional Description 1. 1. Functional DescriptionFunctional Description Octal Bus Transceiver 2. 2. 2. 2. GeneralGeneralGeneralGeneral The 74VHC245FT is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. It is intended for two-way asynchronous communication between data busses. The direction of data transmission is determined by the level of the DIR input. The enable input (G) can be used to disable the device so that the busses are effectively isolated. All inputs are equipped with protection circuits against static discharge. 3. 3. Features (Note)Features (Note) 3. 3. Features (Note)Features (Note) (1) AEC-Q100 (Rev. H) (Note 1) (2) Wide operating temperature range: T = -40 to 125 opr (3) High speed: Propagation delay time = 4.0 ns (typ.) at V = 5.0 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) Balanced propagation delays: t t PLH PHL (7) Wide operating voltage range: V = 2.0 V to 5.5 V CC(opr) (8) Low noise: V = 1.0 V (max) OLP (9) Pin and function compatible with the 74 series (74AC/HC/AHC etc.) 245 type. Note: Do not apply a signal to any bus terminal when it is in the output mode. Damage may result. All floating (high impedance) bus terminals must have their input levels fixed by means of pull up or pull down resistors. A parasitic diode is formed between the bus and V terminals. Therefore bus terminal can not be used to CC interface 5 V to 3 V systems directly. 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 TSSOP20B Start of commercial production 2013-04 2017 Toshiba Corporation 2017-02-22 1 Rev.4.074VHC245FT 5. 5. 5. 5. Pin AssignmentPin AssignmentPin AssignmentPin Assignment 6. 6. 6. 6. MarkingMarkingMarkingMarking 7. 7. IEC Logic SymbolIEC Logic Symbol 7. 7. IEC Logic SymbolIEC Logic Symbol 2017 Toshiba Corporation 2017-02-22 2 Rev.4.0