PCA9517DIn StockTexas Instruments
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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
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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 |
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