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Texas Instruments TSB81BA3EIPFP — Sensors & Transducers

TSB81BA3EIPFP IEEE 1394 Transceiver Half-Duplex 6/6 80HTQFP

MPNTSB81BA3EIPFP
End of Life

Texas Instruments TSB81BA3EIPFP, IEEE 1394 transceiver, half-duplex, 6 drivers / 6 receivers, 3V to 3.6V supply, -40°C to 85°C, 80-TQFP Exposed Pad (80-HTQFP 12x12), tray.

$10.98Ref. price · indicative, final on quote
Texas Instruments TSB81BA3EIPFP datasheet (PDF)
Packaging80-TQFP Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TSB81BA3EIPFP specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 3.6V
ProtocolIEEE 1394
Operating temperature-40°C ~ 85°C
DuplexHalf
PackageTray
Case80-TQFP Exposed Pad
Number of drivers (Receivers)6/6

Product details

IEEE 1394 transceiver for legacy FireWire links

The TSB81BA3EIPFP is a Texas Instruments IEEE 1394 transceiver operating in half-duplex mode, with six drivers and six receivers on a single 80-TQFP Exposed Pad package (80-HTQFP 12x12). It is designed for FireWire node interfaces, hubs, or embedded controllers that need to maintain a 1394a/1394b physical-layer link without a separate PHY chip.

Supply rail and temperature range for industrial BOMs

The supply range is 3V to 3.6V, which means a 3.3V rail with ±10% tolerance covers it — no extra regulator needed if the board already runs a 3.3V plane.

Frequently asked questions

Is TSB81BA3EIPFP compatible with IEEE 1394b?

The part is listed under the IEEE 1394 protocol, which covers both 1394a and 1394b data rates. The half-duplex and 6/6 driver/receiver count are consistent with a 1394b PHY implementation, but confirm the exact data-rate support (S100/S200/S400) from the full datasheet.

Is TSB81BA3EIPFP obsolete?

No — the product status is Active. Texas Instruments continues to manufacture this part, so it is suitable for both new designs and ongoing production.