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74LCX16543 Datasheet(PDF) 2 Page - ON Semiconductor

Part No. 74LCX16543
Description  Low Voltage 16-Bit Registered Transceiver
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

74LCX16543 Datasheet(HTML) 2 Page - ON Semiconductor

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© 2001 Fairchild Semiconductor Corporation
May 1995
Revised April 2001
Low Voltage 16-Bit Registered Transceiver
with 5V Tolerant Inputs and Outputs
General Description
The LCX16543 contains sixteen non-inverting transceivers
containing two sets of D-type registers for temporary stor-
age of data flowing in either direction. Each byte has sepa-
rate control inputs which can be shorted together for full
16-bit operation. Separate Latch Enable and Output
Enable inputs are provided for each register to permit inde-
pendent input and output control in either direction of data
The LCX16543 is designed for low voltage (2.5V or 3.3V)
VCC applications with capability of interfacing to a 5V signal
The LCX16543 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
CMOS low power dissipation.
■ 5V tolerant inputs and outputs
■ 2.3V–3.6V VCC specifications provided
■ 5.2 ns tPD max (VCC = 3.3V), 20 µA ICC max
■ Power down high impedance inputs and outputs
■ Supports live insertion/withdrawal (Note 1)
±24 mA Output Drive (V
CC = 3.0V)
■ Implements patented noise/EMI reduction circuitry
■ Latch-up performance exceeds 500 mA
■ 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 VCC through a pull-up resistor: the minimum value or the
resistor is determined by the current-sourcing capability of the driver.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Logic Symbol
Order Number
Package Number
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

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