74LVT16543 鈥?74LVTH16543 Low Voltage 16-Bit Registered Transceiver with 3-STATE Outputs
January 2000
Revised October 2001
74LVT16543 鈥?74LVTH16543
Low Voltage 16-Bit Registered Transceiver
with 3-STATE Outputs
General Description
The LVT16543 and LVTH16543 16-bit transceivers
contain 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 per-
mit independent control 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 opera-
tion.
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)
V
CC
applications, but with the capability to provide a TTL
interface to a 5V environment. The LVT16543 and
LVTH16543 are fabricated 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 V
CC
s
Bushold data inputs eliminate the need for external
pull-up resistors to hold unused inputs (74LVTH16543)
s
Also available without bushold feature (74LVT16543)
s
Live insertion/extraction permitted
s
Power Up/Down high impedance provides glitch-free
bus loading
s
Outputs source/sink
鈭?/div>
32 mA/
+
64 mA
s
Functionally compatible with the 74 series 16543
s
Latch-up conforms to JEDEC JED78
s
ESD performance:
Human-body model
>
2000V
Machine model
>
200V
Charged-device model
>
1000V
Ordering Code:
Order Number
74LVT16543MEA
(Preliminary)
74LVT16543MTD
(Preliminary)
74LVTH16543MEA
74LVTH16543MTD
Package Number
MS56A
MTD56
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
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
Device also available in Tape and Reel. Specify by appending suffix letter 鈥淴鈥?to the ordering code.
Logic Symbol
漏 2001 Fairchild Semiconductor Corporation
DS012449
www.fairchildsemi.com
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