74LCX16240 Low Voltage 16-Bit Inverting Buffer/Line Driver with 5V Tolerant Inputs and Outputs
February 1994
Revised November 2001
74LCX16240
Low Voltage 16-Bit Inverting Buffer/Line Driver
with 5V Tolerant Inputs and Outputs
General Description
The LCX16240 contains sixteen inverting buffers with
3-STATE outputs designed to be employed as a memory
and address driver, clock driver, or bus-oriented transmit-
ter/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 LCX16240 is designed for low voltage (2.5V or 3.3V)
V
CC
applications with capacity of interfacing to a 5V signal
environment.
The LCX16240 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
CMOS low power dissipation.
Features
s
5V tolerant inputs and outputs
s
2.3V to 3.6V V
CC
specifications provided
s
4.5 ns t
PD
max (V
CC
=
3.3V), 20
碌
A I
CC
max
s
Power down high impedance inputs and outputs
s
Supports live insertion/withdrawal (Note 1)
s
鹵
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
Note 1:
To ensure the high-impedance state during power up or down, OE
should be tied to V
CC
through a pull-up resistor: the minimum value or the
resistor is determined by the current-sourcing capability of the driver.
Ordering Code:
Order Number
74LCX16240MEA
74LCX16240MTD
Package Number
MS48A
MTD48
Package Description
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300" Wide
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 鈥淴鈥?to the ordering code.
Connection Diagram
Logic Symbol
Pin Descriptions
Pin Names
OE
n
I
0
鈥揑
15
O
0
鈥揙
15
Description
Output Enable Inputs (Active LOW)
Inputs
Outputs
GTO錚?is a trademark of Fairchild Semiconductor Corporation.
漏 2001 Fairchild Semiconductor Corporation
DS011999
www.fairchildsemi.com
1
2
3
4
5
6
7
8
