TCA9517ADGKR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TCA9517ADGKR is a 2-bit I2C voltage-level translator in an 8-pin SOIC package by Texas Instruments. It supports bidirectional level translation with open-drain outputs and a single-function design. Available from stock worldwide at competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TCA9517ADGKR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5374(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TCA9517ADGKR?
- 2-bit bidirectional I2C voltage-level translation enabling seamless 1.8 V to 5 V bus interfacing without external pull-up tricks
- Open-drain output architecture compatible with standard I2C and SMBus protocols for reliable multi-master bus designs
- Compact 8-pin SOIC package with JEDEC S-PDSO-G8 outline keeps PCB footprint minimal in board-space-critical systems
- RoHS-compliant (Pb-free e4) construction meeting modern environmental standards for consumer and industrial applications
What is TCA9517ADGKR used for?
TCA9517ADGKR is widely used in mixed-voltage embedded systems where a 3.3 V microcontroller must communicate with 5 V legacy peripherals or 1.8 V sensors over I2C. It enables safe bidirectional signal translation in battery-management ICs, sensor hubs, and display controllers without logic contention. The device is also common in industrial IoT gateways and handheld instruments that aggregate data from multiple I2C sensor ICs on different voltage rails.
What are the specifications of TCA9517ADGKR?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Interface IC Type | VOLTAGE LEVEL TRANSLATOR |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Bits | 2 |
| Number of Functions | 1 |
| Output Characteristics | OPEN-DRAIN |
| Output Latch or Register | LATCH |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 0.9V |
| Supply Voltage-Nom | 2.7V |
| Supply Voltage1-Max | 5.5V |
| Supply Voltage1-Min | 2.7V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mainland China, Malaysia, Thailand |
Where can I find the TCA9517ADGKR datasheet?
TCA9517ADGKR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TCA9517ADGKR?
Compatible alternatives and drop-in replacements for TCA9517ADGKR:
suggested
suggested
suggested
suggested
Frequently Asked Questions
What voltage rails does TCA9517ADGKR support for bidirectional I2C level translation?
TCA9517ADGKR translates between two I2C voltage domains, typically supporting 1.8 V to 5 V rail combinations. Its open-drain output architecture allows the A-side and B-side to operate at different supply voltages, making it a practical choice when connecting a 3.3 V microcontroller to 5 V sensors or 1.8 V memory devices over a 2-wire I2C bus.
For a sensor hub design with 8 or more I2C devices across two voltage rails, how does TCA9517ADGKR simplify the board layout?
TCA9517ADGKR handles all 2-wire bidirectional translation in a single 8-pin SOIC footprint, eliminating discrete resistor dividers or dual-supply buffer ICs. On a sensor hub with 8 or more I2C peripherals, one translator per voltage boundary keeps routing clean, and the open-drain outputs integrate directly with existing pull-up resistor networks already present on most I2C designs.
When should a designer choose TCA9517ADGKR over a general-purpose logic-level converter?
TCA9517ADGKR is the better choice when the bus is I2C or SMBus and bidirectional arbitration is required, because its open-drain output stage respects the bus pull-up protocol that a unidirectional buffer cannot. General-purpose level shifters may fight pull-up currents and corrupt 2-bit acknowledgment sequences, whereas TCA9517ADGKR's single-function, 2-bit architecture is purpose-built to prevent contention on 400 kHz Fast-mode I2C buses.
Is TCA9517ADGKR suitable for designs targeting RoHS compliance in industrial applications?
Yes, TCA9517ADGKR carries a Pb-free JESD-609 e4 code and meets RoHS environmental requirements, making it compliant for industrial control systems, building automation panels, and medical instrumentation that must meet EU directive standards. The 8-pin SOIC plastic/epoxy body is halogen-free compatible and supports the reflow profiles used in standard SMT assembly lines operating at 260°C peak temperature.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.2680 | $2.27 |
| 16+ | $1.4175 | $22.68 |
| 54+ | $0.8505 | $45.93 |
| 250+ | $0.6142 | $153.55 |
| 500+ | $0.5836 | $291.80 |
| 1000+ | $0.5374 | $537.40 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit