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Fairchild Semiconductor - Low Voltage 16-Bit Registered Transceiver with 3-STATE Outputs

Numéro de référence 74LVTH16543
Description Low Voltage 16-Bit Registered Transceiver with 3-STATE Outputs
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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74LVTH16543 fiche technique
January 2000
Revised January 2000
74LVTH16543
Low Voltage 16-Bit Registered Transceiver
with 3-STATE Outputs
General Description
The LVTH16543 16-bit transceiver contains two sets of D-
type latches for temporary storage of data flowing in either
direction. Separate Latch Enable and Output Enable inputs
are provided for each register to permit independent con-
trol of inputting and outputting in either direction of data
flow. Each byte has separate control inputs, which can be
shorted together for full 16-bit operation.
The LVTH16543 data inputs include bushold, eliminating
the need for external pull-up resistors to hold unused
inputs.
These transceivers are designed for low-voltage (3.3V)
VCC applications, but with the capability to provide a TTL
interface to a 5V environment. The LVTH16543 is fabri-
cated with an advanced BiCMOS technology to achieve
high speed operation similar to 5V ABT while maintaining
low power dissipation.
Features
s Input and output interface capability to systems at
5V VCC
s Bushold data inputs eliminate the need for external pull-
up resistors to hold unused inputs
s Live insertion/extraction permitted
s Power Up/Down high impedance provides glitch-free
bus loading
s Outputs source/sink 32 mA/+64 mA
s Functionally compatible with the 74 series 16543
s Latch-up performance exceeds 500 mA
Ordering Code:
Order Number Package Number
Package Description
74LVTH16543MEA
MS56A
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide
74LVTH16543MTD
MTD56
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
© 2000 Fairchild Semiconductor Corporation DS012449
www.fairchildsemi.com

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