74LCX16501 Low Voltage 18-Bit Universal Bus Transceivers with 5V Tolerant Inputs and Outputs
October 1995
Revised March 2001
74LCX16501
Low Voltage 18-Bit Universal Bus Transceivers
with 5V Tolerant Inputs and Outputs
General Description
The LCX16501 is an 18-bit universal bus transceiver com-
bining D-type latches and D-type flip-flops to allow data
flow in transparent, latched, and clocked modes.
Data flow in each direction is controlled by output-enable
(OEAB and OEBA), latch-enable (LEAB and LEBA), and
clock (CLKAB and CLKBA) inputs.
The LCX16501 is designed for low voltage (2.5V or 3.3V)
V
CC
applications with capability of interfacing to a 5V signal
environment.
The LCX16501 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
CMOS low power.
Features
s
5V tolerant inputs and outputs
s
2.3V鈥?.6V V
CC
specifications provided
s
6.0 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
and OE tied to GND through a resistor: the minimum
value or the resistor is determined by the current-sourcing capability of the
driver.
Ordering Code:
Order Number
74LCX16501MEA
74LCX16501MTD
Package Number
MS56A
MTD56
Package Description
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available on Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
漏 2001 Fairchild Semiconductor Corporation
DS012550
www.fairchildsemi.com