TC74LCX163245FT_07 Datasheet, PDF (1/11 Pages) Toshiba Semiconductor – 16-Bit Dual Supply Bus Transceiver

TC74LCX163245FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX163245FT
16-Bit Dual Supply Bus Transceiver
The TC74LCX163245FT 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
Weight: 0.25 g (typ.)
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.
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
• High-speed operation: t_pd = 7.0 ns (max)
(V_CCB = 3.3 ± 0.3 V/V_CCA = 5 ± 0.5 V, Ta = −40 to 85°C)
• Low power dissipation: I_CC = 80 μA (max) (Ta = −40 to 85°C)
• Symmetrical ouput impedance: I_OUTB = ±24 mA (min)
I_OUTA = ±24 mA (min)
(V_CCB = 3.0 V/V_CCA = 4.5 V)
• Power-down protection provided on all inputs and outputs
• Allows A port and V_CCA 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.
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2007-10-19