16-Bit Dual Supply Bus Transceiver
TC74LCX164245FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX164245FT
16-Bit Dual Supply Bus Transc...
Description
TC74LCX164245FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX164245FT
16-Bit Dual Supply Bus Transceiver
The TC74LCX164245FT 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
Weight: 0.25 g (typ.)
5-V bus, the A-port with the 3.3-V or 2.5-V bus.
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 Wide operating temperature range: Topr = −40 to 125 °C (Note 1) High-speed: tpd = 5.8 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 ouput impedance: IOUTA = ±24 mA (min)
IOUTB = ±24 mA (min) (VCCA = 3.0 V/VCCB = 4.5 V) Power-down protection provided on all inputs and outputs Allows A port and VCCA to float simultaneously when OE is “H”. Latch-up p...
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