74LCX541FT CMOS Digital Integrated Circuits Silicon Monolithic 74LCX541FT74LCX541FT74LCX541FT74LCX541FT 1. 1. Functional DescriptionFunctional Description 1. 1. Functional DescriptionFunctional Description Low-Voltage Octal Bus Buffer with 5-V Tolerant Inputs and Outputs 2. 2. 2. 2. GeneralGeneralGeneralGeneral The 74LCX541FT is a high-performance CMOS octal bus buffer. Designed for use in 3.3-V systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. The device is designed for low-voltage (3.3 V) V applications, but it could be used to interface to 5 V supply CC environment for both inputs and outputs. The 74LCX541FT is a non-inverting 3-state buffer having two active-low output enables. When either OE1 or OE2 are high, the terminal outputs are in the high-impedance state. This device is designed to be used with 3-state memory address drivers, etc. All inputs are equipped with protection circuits against static discharge. 3. 3. FeaturesFeatures 3. 3. FeaturesFeatures (1) Low-voltage operation: V = 1.65 to 3.6 V CC (2) High-speed operation: t = 6.5 ns (max) (V = 3.0 to 3.6 V) pd CC (3) Output current: I /I = 24 mA (min) (V = 3.0 V) OH OL CC (4) Power-down protection provided on all inputs and outputs (5) Pin and function compatible with the 74 series (74LVC/ALVC/ etc.) 541 type 4. 4. 4. 4. PackagingPackagingPackagingPackaging TSSOP20B Start of commercial production 2013-10 2018 2018-10-30 1 Toshiba Electronic Devices & Storage Corporation Rev.3.074LCX541FT 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 2018 2018-10-30 2 Toshiba Electronic Devices & Storage Corporation Rev.3.0