74LCXH16244 Datasheet, PDF (1/9 Pages) Fairchild Semiconductor – Low Voltage 16-Bit Buffer/Line Driver with Bushold

September 2000
Revised September 2000
74LCXH16244
Low Voltage 16-Bit Buffer/Line Driver with Bushold
General Description
The LCXH16244 contains sixteen non-inverting buffers
with 3-STATE outputs designed to be employed as a mem-
ory and address driver, clock driver, or bus oriented trans-
mitter/receiver. The device is nibble controlled. Each nibble
has separate 3-STATE control inputs which can be shorted
together for full 16-bit operation.
The LCXH16244 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 LCXH16244 is designed for low voltage (2.5V or 3.3V)
V_CC applications with capability of interfacing to a 5V signal
environment.
The LCXH16244 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing CMOS low power dissipation.
Features
s 5V tolerant control inputs and outputs
s 2.3V–3.6V V_CC specifications provided
s 4.5 ns t_PD max (V_CC = 3.0V), 20 µA I_CC max
s Bushold on inputs eliminates the need for external
pull-up/pull-down resistors
s Power down high impedance inputs and outputs
s ±24 mA output drive (V_CC = 3.0V)
s Implements patented noise/EMI reduction circuitry
s Latch-up performance exceeds 500 mA
s ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Order Number Package Number
Package Description
74LCXH16244MEA
MS48A
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300 Wide
74LCXH16244MTD
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Logic Symbol
Pin Descriptions
Pin Names
OE_n
I₀–I₁₅
O₀–O₁₅
Description
Output Enable Input (Active LOW)
Bushold Inputs
Outputs
© 2000 Fairchild Semiconductor Corporation DS500248
www.fairchildsemi.com