PCA9517D Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
PCA9517D is a dual bidirectional I2C bus repeater from Texas Instruments, supporting 2.7V to 5.5V operation with level translation and signal buffering. From $1.90, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- PCA9517D Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.9000(MOQ 101)
- 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 PCA9517D?
- Dual bidirectional I2C bus repeater with voltage level translation between 2.7V and 5.5V supply rails
- Isolates bus capacitance to extend I2C bus length and support more devices on a single segment
- Compatible with Standard-mode (100 kHz) and Fast-mode (400 kHz) I2C protocols
- Available in compact 8-pin SOIC package for space-constrained PCB designs
- Single function design simplifies system integration and minimizes external component count
What is PCA9517D used for?
The PCA9517D is widely used in mixed-voltage systems where I2C master and slave devices operate at different supply voltages, such as microcontrollers communicating with 3.3V sensors or EEPROMs. It is ideal for industrial control boards, embedded computing platforms, and consumer electronics where bus capacitance needs to be reduced to extend I2C segment reach. The device also suits applications requiring signal integrity improvement across longer PCB traces or connector interfaces.
What are the specifications of PCA9517D?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | I2C, OPERATES WITH 2.7 V TO 5.5 V |
| Interface IC Type | BUS BUFFERS |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 0.9V |
| Supply Voltage-Nom | 1.2V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| ## PCA9517D Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the PCA9517D datasheet?
PCA9517D Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PCA9517D?
Compatible alternatives and drop-in replacements for PCA9517D:
Frequently Asked Questions
What voltage levels does the PCA9517D support?
The PCA9517D operates with supply voltages from 2.7V to 5.5V on both sides, enabling level translation between 3.3V and 5V I2C buses. This makes it suitable for mixed-voltage systems where master and slave devices use different logic levels.
What I2C speeds are compatible with the PCA9517D?
The PCA9517D supports Standard-mode I2C at up to 100 kHz and Fast-mode at up to 400 kHz. It is fully compatible with the I2C specification for these modes, making it versatile for a wide range of sensor, memory, and peripheral applications.
What package does the PCA9517D come in?
The PCA9517D is available in an 8-pin SOIC (Small Outline IC) package with a 0.25-inch package equivalence code (SOP8). This compact surface-mount package is easy to integrate into standard PCB layouts.
Can the PCA9517D be used as a replacement for other I2C bus buffers?
Yes, the PCA9517D can replace many compatible 8-pin I2C bus buffers with similar pinouts and operating voltage ranges. Always verify pin compatibility, voltage range, and I2C speed requirements against the target device datasheet before substitution.
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 |
|---|---|---|
| 101+ | $2.9700 | $299.97 |
| 500+ | $2.1400 | $1070.00 |
| 1000+ | $2.0200 | $2020.00 |
| 10000+ | $1.9000 | $19000.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
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