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TC74LCXR163245FT Datasheet(PDF) 1 Page - Toshiba Semiconductor |
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TC74LCXR163245FT Datasheet(HTML) 1 Page - Toshiba Semiconductor |
1 / 11 page TC74LCXR163245FT 2007-10-19 1 TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCXR163245FT 16-Bit Dual Supply Bus Transceiver with Series Resistor The TC74LCXR163245FT 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 3.3-V or a 2.5-V bus and a 5-V bus in mixed 3.3-V or 2.5-V/5-V supply systems, it achieves high-speed operation 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 ( OE ) can be used to disable the device so that the buses are effectively isolated. The B-port interfaces with the 3.3 V or 2.5 V bus, the A-port with the 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 1) (Note 2) • Bidirectional interface between 3.3 V or 2.5 V buses and 5 V buses • 26-Ω series resistors on outputs • High-speed operation: tpd = 8.5 ns (max) (VCCB = 3.3 ± 0.3 V/VCCA = 5 ± 0.5 V, Ta = −40 to 85°C) • Low-voltage operation: ICC = 80 μA (max) (Ta = −40 to 85°C) • Symmetrical output impedance: IOUTB = ±12 mA (min) IOUTA = ±12 mA (min) (VCCB = 3.0 V/VCCA = 4.5 V) • Power-down protection provided on all inputs and outputs • Allows A port and VCCA to float simultaneously in high state at OE pin • Latch-up performance: −500 mA • ESD performance: Machine model > ±200 V (Note 2) • Package: TSSOP Note 1: 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. Note 2: This device is electrostatic sensitivity (human body model > 1 kV). Please handle with caution. Weight: 0.25 g (typ.) |
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