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SN74ABT16543DGGR
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Texas Instruments / Logic ICs

SN74ABT16543DGGR 74ABT Transceiver, 56-TSSOP, 32mA/64mA

MPN SN74ABT16543DGGR
End of Life Spot Stock · 24-48h Dispatch 100% Original Sealed

Texas Instruments 74ABT series SN74ABT16543DGGR, Logic Transceiver, Non-Inverting, 3-State, 2-Element, 8-Bit, 4.5V to 5.5V Supply, 32mA/64mA Output, -40°C to 85°C, 56-TSSOP.

In Stock: 57 pcs
MOQ: 1 pcs
Logistics: DHL / FedEx DAP (Global Express · 3-7d) Russia & CIS DDP (Door-to-Door Cleared)
Dispatch: Shenzhen / HK
Unit Price (USD)
$3.23 / pc
Direct Purchase Ready
Volume Pricing Breaks Confirmed upon quotation
1+ pcs
$3.23
10+ pcs
$2.76
30+ pcs
$2.47
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$3.23 / ea

57 in stock — maximum per order · 3–4 days lead time

$2.76 / ea from 10 pcs
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100% Original Sealed 45x Microscope QC 30-Day Warranty · COC USD T/T & PI · DAP/DDP
[SPEC] Essential Parameters Snapshot Full Specifications (11)
Package / Case 56-TFSOP (0.240", 6.10mm Width)
Supply Voltage 4.5V ~ 5.5V
Output / Current 32mA, 64mA

Full Technical Specifications

11 Parameters
SN74ABT16543DGGR specifications
Parameter / AttributeSpecification / Value
Series74ABT
Logic typeTransceiver, Non-Inverting
Output type3-State
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
Current - output high, low32mA, 64mA
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case56-TFSOP (0.240\", 6.10mm Width)
Number of elements2
Number of bits per element8
Series Sibling Variants

Texas Instruments 74ABT Series Models

Sibling variants, package options, and speed/density grades in this Texas Instruments semiconductor series. Active Shenzhen warehouse allocation and rapid 24-48h dispatch.

SN74ABT125D
Texas Instruments 74ABT series, SN74ABT125D, Buffer, Non-Inverting, 3-State, 4.5V ~ 5.5V supply, 32mA/64mA output drive, -40°C ~ 85°C, Surface Mount 14-SOIC package.
View Availability & Specs
SN74ABT125DBR
Texas Instruments 74ABT series buffer, non-inverting, 3-state output, SN74ABT125DBR, 14-SSOP package, 4.5V-5.5V supply, 32mA/64mA output drive, -40°C to 85°C.
View Availability & Specs
SN74ABT125DR
Texas Instruments 74ABT series SN74ABT125DR, Buffer Non-Inverting, 3-State, 4.5V–5.5V supply, 32mA/64mA output drive, -40°C to 85°C, 14-SOIC package.
View Availability & Specs
SN74ABT125NS
Texas Instruments 74ABT series SN74ABT125NS, Buffer, Non-Inverting, 3-State, 4.5V ~ 5.5V supply, 32mA / 64mA output drive, -40°C ~ 85°C, 14-SOIC, Surface Mount.
View Availability & Specs
SN74ABT126D
Texas Instruments 74ABT series SN74ABT126D, Buffer Non-Inverting, 4-Element 1-Bit, 3-State Output, 4.5V-5.5V Supply, 32mA/64mA Drive, -40°C to 85°C, 14-SOIC.
View Availability & Specs
SN74ABT126DR
IC BUF NON-INVERT 5.5V 14SOIC
View Availability & Specs

Technical Details & Description

Dual 8-bit transceiver for 5V buses

It packs two 8-bit elements into a 56-TSSOP package, delivering 32mA source and 64mA sink per output — enough drive for heavily loaded backplane or memory-interface buses without external buffers.

Why the 5V-only supply matters

This part runs strictly on 4.5V to 5.5V — it is not a 3.3V-tolerant transceiver. If your bus is 3.3V or mixed-voltage, the SN74LVTH16245ADGVR (2.7V to 3.6V supply) is the functional alternative in a similar footprint. The 64mA sink capability on the low side handles fan-out to dozens of LSTTL or CMOS loads on a 5V backplane, but the same drive at 3.3V would exceed the output overvoltage limit. Stay inside the rated supply range.

No LTB window to chase, no successor to qualify — the BOM line is stable for new builds and ongoing production.

Frequently asked questions

Is SN74ABT16543DGGR compatible with 3.3V logic?

No. The supply range is 4.5V to 5.5V, and the inputs and outputs are not 3.3V-tolerant. For a 3.3V bus, consider the SN74LVTH16245ADGVR which operates from 2.7V to 3.6V.

What is the equivalent or replacement for SN74ABT16543DGGR?

Within the same 5V 74ABT family, the single-element SN74ABT2245DW (8-bit, same drive) is a functional subset but only one element. For a dual 8-bit transceiver at 3.3V, the SN74LVTH16245ADGVR is the closest pin-compatible alternative, though it requires a lower supply voltage.

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