Texas Instruments TSB81BA
TSB81BA variants from Texas Instruments
TSB81BA Overview
What changes between part numbers, and what to check before you lock the BOM — Microcontrollers.
Key Features
- Footprint / package: 168-TFBGASingle package option across listed variants; still confirm reel vs tube suffix if you auto-insert.
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 4 distinct suffix patternsExamples: 3EIPFP, 3EIZAJ, 3IPFPEP, 3EZAJ. Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Microcontrollers — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 4 TSB81BA part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| TSB81BA3EIPFP | Triple Port Cable Transceiver/Arbiter 1TX 1RX 800Mbps 80-Pin HTQFP EP Tray | - | Texas Instruments | Active | Compliant | In Stock | |
| TSB81BA3EIZAJ | IEEE P1394b Three-Port Cable Transceiver Arbiter 168-NFBGA -40 to 85 | - | Texas Instruments | Active | Compliant | In Stock | |
| TSB81BA3IPFPEP | Transceiver 1TX 1RX 800Mbps 80-Pin HTQFP EP Tray | - | Texas Instruments | Active | Compliant | In Stock | |
| TSB81BA3EZAJ | Package: 168-TFBGA | Mounting Type: Surface Mount | Supply Voltage: 3V ~ 3.6V | Operating Temperature: 0°C ~ 70°C | 168-TFBGA | Texas Instruments | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on TSB81BA map to package, grade, and reel options.
How to Choose the Right TSB81BA Microcontrollers
Match the footprint first
Packages here: 168-TFBGA. Open the land-pattern drawing before you substitute a different suffix.
Electrical headroom
Compare voltage and current columns in the variant table. For TSB81BA, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "TSB81BA" — include the full suffix (e.g. 3EIPFP, 3EIZAJ, 3IPFPEP). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for TSB81BA product family
Identity
Variant Parameters
Source TSB81BA with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 4 ordering variants from Texas Instruments. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the TSB81BA product family.