74LCX16245_07 Datasheet, PDF (1/15 Pages) STMicroelectronics – Low voltage CMOS 16-bit bus transceiver (3-state) with 5V tolerant inputs and outputs

74LCX16245
Low voltage CMOS 16-bit bus transceiver (3-state)
with 5V tolerant inputs and outputs
Features
■ 5V tolerant inputs and outputs
■ High speed:
– t_PD = 4.5ns (Max) at V_CC = 3V
■ Power down protection on inputs and outputs
■ Symmetrical output impedance:
– |I_OH| = I_OL = 24mA (Min) at V_CC = 3V
■ PCI bus levels guaranteed at 24mA
■ Balanced propagation delays:
– t_PLH ≅ t_PHL
■ Operating voltage range:
– V_CC (Opr) = 2.0V to 3.6V
■ Pin and function compatible with
74 series 16245
■ Latch-up performance exceeds
500mA (JESD 17)
■ ESD performance:
– HBM > 2000V
(MIL STD 883 method 3015); MM > 200V
TSSOP48
Description
The 74LCX16245 is a low voltage CMOS 16 bit
bus transceiver (3-state) fabricated with sub-
micron silicon gate and double-layer metal wiring
C²MOS technology. It is ideal for low power and
high speed 3.3V applications; it can be interfaced
to 5V signal environment for both inputs and
outputs.
This IC is intended for two-way asynchronous
communication between data buses; the direction
of data transmission is determined by DIR input.
The two enable inputs nG can be used to disable
the device so that the buses are effectively
isolated.
It has same speed performance at 3.3V than 5V
AC/ACT family, combined with a lower power
consumption.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
All floating bus terminals during High Z State must
be held HIGH or LOW.
Order codes
Part number
74LCX16245TTR
Package
TSSOP48
Packaging
Tape and reel
February 2007
Rev 7
1/15
www.st.com
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