74LCX257FT(AJ) Toshiba

74LCX257FT CMOS Digital Integrated Circuits Silicon Monolithic 74LCX257FT74LCX257FT74LCX257FT74LCX257FT 1. 1. Functional DescriptionFunctional Description 1. 1. Functional DescriptionFunctional Description Low-Voltage Quad 2-Channel Multiplexer (3-state) with 5-V Tolerant Inputs and Outputs 2. 2. 2. 2. GeneralGeneralGeneralGeneral The 74LCX257FT is a high-performance CMOS multiplexer. 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 inputs. It is composed of four independent 2-channel multiplexers with common select and OE . If OE is set high, the outputs are held in a high-impedance state. When SELECT is set low, data inputs are enabled. Conversely, when SELECT is high, data inputs are enabled. All inputs are equipped with protection circuits against static discharge. 3. 3. FeaturesFeatures 3. 3. FeaturesFeatures (1) AEC-Q100 (Rev. H) (Note 1) (2) Wide operating temperature range: T = -40 to 125 opr (3) Low-voltage operation: V = 1.65 to 3.6 V CC (4) High-speed operation: t = 7.0 ns (max) (V = 3.3 0.3 V) pd CC (5) Output current: I /I = 24 mA (min) (V = 3.0 V) OH OL CC (6) Power-down protection provided on all inputs and outputs (7) Pin and function compatible with the 74 series (74LVC/ALVC/ etc.) 257 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 TSSOP16B Start of commercial production 2014-11 2016 Toshiba Corporation 2016-09-15 1 Rev.2.074LCX257FT 5. 5. 5. 5. Pin AssignmentPin AssignmentPin AssignmentPin Assignment 6. 6. 6. 6. MarkingMarkingMarkingMarking 7. 7. 7. 7. IEC Logic SymbolIEC Logic SymbolIEC Logic SymbolIEC Logic Symbol 8. 8. Truth TableTruth Table 8. 8. Truth TableTruth Table Input Input Inputs Inputs Outputs OE SELECT A B Y H X X X Z L L L X L L L H X H L H X L L L H X H H X: Don t care Z: High impedance 2016 Toshiba Corporation 2016-09-15 2 Rev.2.0