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TC74LCXR164245FT 数据表(PDF) 1 Page - Toshiba Semiconductor |
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TC74LCXR164245FT 数据表(HTML) 1 Page - Toshiba Semiconductor |
1 / 11 page TC74LCXR164245FT 2007-10-19 1 TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCXR164245FT 16-Bit Dual Supply Bus Transceiver with Series Resistor The TC74LCXR164245FT is a dual supply, advanced high-speed CMOS 16-bit dual supply voltage interface bus transceiver fabricated with silicon gate CMOS technology. Designed for use as an interface between a 5-V bus and a 3.3-V or 2.5-V bus in mixed 5-V/3.3-V or 2.5-V supply systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. It is intended for 2 way asynchronous communication between data busses. The direction of data transmission is determined by the level of the DIR input. The enable input ( OE ) can be used to disable the device so that the buses are effectively isolated. The B-port interfaces with the 5-V bus, the A-port with the 3.3-V or 2.5-V-bus. The 26-Ω series resistor helps reducing output overshoot and undershoot without external resistor. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features (Note) • Bidirectional interface between 5 V and 3.3 V or 2.5 V buses • 26-Ω series resistors on outputs • High-speed: tpd = 6.8 ns (max) (VCCB = 5.0 ± 0.5 V/VCCA = 3.3 ± 0.3 V, Ta = −40 to 85°C) • Low power dissipation: ICC = 80 μA (max) (Ta = −40 to 85°C) • Symmetrical output impedance: IOUTB = ±12 mA (min) IOUTA = ±12 mA (min) (VCCB = 4.5V/VCCA = 3.0 V) • Power-down protection is provided on all inputs and outputs. • Allows A port and VCCA to float simultaneously when OE is “H” • Latch-up performance: −500 mA • Package: TSSOP Note: Do not apply a signal to any bus pins when it is in the output mode. Damage may result. All floating (high impedance) bus pins must have their input fixed by means of pull-up or pull-down resistors. Weight: 0.25 g (typ.) |
类似零件编号 - TC74LCXR164245FT_07 |
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类似说明 - TC74LCXR164245FT_07 |
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