74LCX16240 Datasheet, PDF (1/15 Pages) Fairchild Semiconductor – Low Voltage 16-Bit Inverting Buffer/Line Driver with 5V Tolerant Inputs/Outputs

74LCX16240
Low voltage CMOS 16-bit bus buffer (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 16240
■ Latch-up performance exceeds
500mA (JESD 17)
■ ESD performance:
– HBM > 2000V
(MIL STD 883 method 3015); MM > 200V
TSSOP48
Description
The 74LCX16240 is a low voltage CMOS 16 BIT
BUS BUFFER 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.
Any nG output control governs four BUS
BUFFERS. Output Enable input (nG) tied together
gives full 16-bit operation.
When nG is LOW, the outputs are on. When nG is
HIGH, the output are in high impedance state.
This device is designed to be used with 3 state
memory address drivers, etc.
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.
Order codes
Part number
74LCX16240TTR
Package
TSSOP48
Packaging
Tape and reel
February 2007
Rev 5
1/15
www.st.com
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