© 2002 Fairchild Semiconductor Corporation DS500632 www.fairchildsemi.com
September 2001
Revised February 2002
74ALVCH162244 Low Voltage 16-Bit Buffer/Line Driver with Bushold and 26
Ω
Series Resistor in Outputs
74ALVCH162244
Low Voltage 16-Bit Buffer/Line Driver with Bushold
and 26
Ω Series Resistor in Outputs
General Description
The ALVCH162244 contains sixteen non-inverting buffers
with 3-STATE outputs to be employed as a memory and
address driver, clock driver, or bus oriented transmitter/
receiver. The device is nibble (4-bit) controlled. Each nibble
has separate 3-STATE control inputs which can be shorted
together for full 16-bit operation.
The ALVCH162244 data inputs include active bushold cir-
cuitry, eliminating the need for external pull-up resistors to
hold unused or floating data inputs at a valid logic level
The 74ALVCH162244 is also designed with 26
Ω series
resistors in the outputs. This design reduces line noise in
applications such as memory address drivers, clock driv-
ers, and bus transceivers/transmitters.
The 74ALVCH162244 is designed for low voltage (1.65V to
3.6V) V
CC
applications with output capability up to 3.6V.
The 74ALVCH162244 is fabricated with an advanced
CMOS technology to achieve high speed operation while
maintaining low CMOS power dissipation.
Features
■ 1.65V to 3.6V V
CC
supply operation
■ 3.6V tolerant control inputs and outputs
■ Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
■ 26
Ω series resistors in outputs
■ t
PD
4.2 ns max for 3.0V to 3.6V V
CC
4.9 ns max for 2.3V to 2.7V V
CC
7.6 ns max for 1.65V to 1.95V V
CC
■ Uses patented noise/EMI reduction circuitry
■ Latch-up conforms to JEDEC JED78
■ ESD performance:
Human body model
> 2000V
Machine model
> 200V
Ordering Code:
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol Pin Descriptions
Order Number
Package
Number
Package Description
74ALVCH162244T MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Pin Names Description
OE
n
Output Enable Input (Active LOW)
I
0
–I
15
Bushold Inputs
O
0
–O
15
Outputs