74LCX162244_07 Datasheet, PDF (1/15 Pages) STMicroelectronics – Low voltage CMOS 16-bit bus buffer (3-state) with 5V tolerant inputs and outputs

74LCX162244
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 = 4.4ns (Max) at V_CC = 3V
■ Power down protection on inputs and outputs
■ Symmetrical output impedance:
– |I_OH| = I_OL = 12mA (Min) at V_CC = 3V
■ PCI bus levels guaranteed at 12mA
■ Balanced propagation delays:
– t_PLH ≅ t_PHL
■ 26Ω serie resistor in outputs
■ Operating voltage range:
– V_CC (Opr) = 2.0V to 3.6V
■ Pin and function compatible with
74 series 162244
■ Latch-up performance exceeds 500mA
(JESD 17)
■ ESD performance:
– HBM > 2000V
(MIL STD 883 method 3015); MM > 200V
TSSOP48
Description
The 74LCX162244 is a low voltage CMOS 16 bit
bus buffer (non-inverted) 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.
The device circuits is including 26Ω series
resistance in the outputs. These resistors permit
to reduce line noise in high speed applications.
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
74LCX162244TTR
Package
TSSOP48
Packaging
Tape and reel
February 2007
Rev 4
1/15
www.st.com
15