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NXP Semiconductors PCA9306GF,115
- Part No.:
- PCA9306GF,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
PCA9306GF,115.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 8XSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,608
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Product details
Overview
PCA9306GF,115 from NXP Semiconductors is a dual bidirectional I²C-bus and SMBus voltage-level translator with enable input, supporting 1.0 V–3.6 V (VREF1) and 1.8 V–5.5 V (VREF2) operation, <1.5 ns max propagation delay, 3.5 Ω typical ON-state resistance, and XSON8 (SOT1089) 1.35 × 1 × 0.5 mm package. It enables seamless level translation between mixed-voltage I²C subsystems in space-constrained embedded controllers.
For engineers reviewing the PCA9306GF,115 datasheet, PCA9306GF,115 pinout, PCA9306GF,115 application, or PCA9306GF,115 equivalent, key selection criteria include bidirectional translation without direction control, ESD robustness (>2000 V HBM), flow-through pinout for PCB routing, and compatibility with Standard/Fast/Fast-Plus I²C modes up to >2 MHz under optimized RC conditions.
Technical Context
The PCA9306GF,115 implements a passive MOSFET-based clamping architecture with two independent bidirectional channels (SCL1↔SCL2, SDA1↔SDA2), where voltage translation is governed by VREF1 and VREF2 biasing-no internal logic or direction pin required. EN must be tied to VREF2 (≥1 V above VREF1) to activate low-impedance conduction.
When enabled, it provides symmetrical ON-state resistance (<5 Ω at VI(EN) ≥ 2.3 V) and minimal inter-channel skew; when disabled, all I/O pins enter high-impedance state. It does not buffer bus capacitance like PCA9509-it only isolates sides during disable, making it unsuitable for physically separating high-capacitance buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VREF1 Range | 1.0 V to 3.6 V - sets low-side logic HIGH threshold for SCL1/SDA1; must be ≥1 V below VREF2 for reliable clamping |
| VREF2 Range | 1.8 V to 5.5 V - supplies high-side pull-up and enables EN; determines maximum output voltage on SCL2/SDA2 |
| Max Propagation Delay | <1.5 ns (CL = 15 pF) - supports Fast-mode Plus (1 MHz) and higher system frequencies with minimal timing budget impact |
| ON-State Resistance | Typ. 3.5 Ω (VI(EN) = 4.5 V) - ensures minimal signal distortion and voltage drop across translated lines under 64 mA pass current |
| ESD Protection | >2000 V HBM (JESD22-A114), >1000 V CDM (JESD22-C101) - protects downstream 1.0–1.8 V logic from system-level ESD events |
| Operating Temperature | −40 °C to +105 °C - qualified for industrial and automotive-adjacent embedded applications with extended thermal margins |
| I²C Compatibility | Standard-mode (100 kHz), Fast-mode (400 kHz), Fast-mode Plus (1 MHz), SMBus - no protocol modification required |
Pinout & Package
XSON8 package (SOT1089): 1.35 mm × 1.0 mm × 0.5 mm body, 8-terminal no-lead surface-mount, wettable flank compatible, designed for automated optical inspection and high-density layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Common return path for both voltage domains; must be low-inductance connection to minimize noise coupling |
| VREF1 | Low-voltage side supply | Bias for SCL1/SDA1 clamp circuitry; defines logic HIGH level on low-voltage bus (e.g., 1.2 V, 1.8 V) |
| SCL1 | Low-voltage clock I/O | Open-drain serial clock line connected to VREF1 via external pull-up; bidirectionally translated to SCL2 |
| SDA1 | Low-voltage data I/O | Open-drain serial data line connected to VREF1 via external pull-up; bidirectionally translated to SDA2 |
| SDA2 | High-voltage data I/O | Open-drain serial data line connected to VREF2 via external pull-up; bidirectionally translated to SDA1 |
| SCL2 | High-voltage clock I/O | Open-drain serial clock line connected to VREF2 via external pull-up; bidirectionally translated to SCL1 |
| VREF2 | High-voltage side supply | Bias for SCL2/SDA2 clamp circuitry and EN input; defines logic HIGH level on high-voltage bus (e.g., 3.3 V, 5 V) |
| EN | Enable control input | Active-HIGH switch control; must be pulled to VREF2 (not VREF1) to activate translation; high-impedance when LOW |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pinout | Linear left-to-right terminal arrangement (GND–VREF1–SCL1–SDA1–SDA2–SCL2–VREF2–EN) minimizes trace crossovers and reduces PCB layer count |
| No direction pin required | Automatic bidirectional clamping eliminates GPIO overhead and firmware complexity in mixed-voltage I²C topologies |
| 5 V tolerant I/O | SCL1/SDA1 accept up to 6 V inputs while operating at 1.0 V VREF1 - prevents damage from accidental overvoltage on low-voltage side |
| Lock-up free operation | Guaranteed immunity to latch-up under all valid operating conditions, including hot-swap and power sequencing mismatches |
| Low ON-resistance symmetry | ≤0.5 Ω deviation between SCL and SDA channel Ron ensures matched timing and avoids clock/data skew in high-speed I²C |
Applications
| Industrial Sensor Hub | Automotive Body Control Module |
|---|---|
Use Scenario: Interfacing 1.8 V MEMS sensors (accelerometer, gyroscope) with a 3.3 V microcontroller in a factory-floor vibration monitor. IC Role / Device Role / Timing Role: Voltage-level translator enabling bidirectional I²C communication between disparate supply domains without protocol alteration. Use Value: Eliminates need for discrete FET solutions or level-shifting buffers, reducing BOM count and layout area in compact sensor nodes. |
Use Scenario: Connecting 5 V legacy CAN transceiver diagnostics interface to a 1.2 V automotive SoC I²C debug port. IC Role / Device Role / Timing Role: Translates 5 V SMBus signals down to 1.2 V while preserving Fast-mode timing integrity for real-time fault reporting. Use Value: Enables backward compatibility with legacy 5 V peripherals without redesigning SoC I/O pads or adding external regulators. |
| Wearable Health Monitor | Edge AI Inference Node |
Use Scenario: Linking ultra-low-power 1.0 V biosensor ASIC to a 2.5 V Bluetooth LE MCU in a battery-operated ECG patch. IC Role / Device Role / Timing Role: Provides sub-1.5 ns propagation delay and <1 μA quiescent current (EN = LOW) to preserve sleep-mode efficiency. Use Value: Maintains I²C timing margins at 100 kHz while minimizing active and standby power consumption in energy-critical wearables. |
Use Scenario: Isolating 3.3 V FPGA configuration EEPROM from a 1.8 V AI accelerator's I²C management bus during boot sequence. IC Role / Device Role / Timing Role: Enables controlled power-up sequencing via EN pin-EEPROM access blocked until accelerator core is stable. Use Value: Prevents bus contention and configuration corruption by gating I²C access with precise hardware-level enable control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I²C voltage-level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI PCA9306DCU | Identical electrical specs and pinout; VSSOP8 (SOT765-1) package only - 2.3 mm body width vs. XSON8's 1.0 mm | Requires PCB redesign for footprint and reflow profile; lacks XSON8's wettable flanks for AOI | Select PCA9306DCU only if VSSOP8 is already standardized in production and board space is not constrained. |
| NXP PCA9306JKZ | Direct replacement with X2SON8 (SOT2015-1) package: same 1.35 × 1 mm footprint but 0.32 mm height (vs. 0.5 mm for GF) | Enables thinner end-products; identical pinout and electrical behavior - migration path per NXP PCN202108009DN | Prefer PCA9306JKZ for new designs targeting lowest profile; PCA9306GF,115 remains viable for legacy XSON8-restricted layouts. |
Compared with PCA9306DCU, PCA9306GF,115 offers superior board-area efficiency and automated inspection capability; compared with PCA9306JKZ, it trades 0.18 mm height for slightly better thermal dissipation margin in thermally dense modules.
Availability
PCA9306GF,115 is available at Aetrix Electronics and suitable for industrial sensor hubs, automotive body control modules, wearable health monitors, and edge AI inference nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PCA9306GF,115 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, IoT, mobile, and communication infrastructure markets.
The PCA9306GF,115 belongs to NXP's I²C/SMBus interface portfolio, engineered specifically for low-latency, zero-direction-pin voltage translation in space- and power-constrained embedded systems.
FAQ
What is the minimum voltage difference required between VREF1 and VREF2 for reliable operation of PCA9306GF,115?
The PCA9306GF,115 requires VREF2 ≥ VREF1 + 1 V for optimal clamping performance, as specified in Table 10 of the datasheet. For example, with VREF1 = 1.8 V, VREF2 must be at least 2.8 V (e.g., 3.3 V). Operating below this margin risks incomplete high-to-low translation and increased VOL on the low-voltage side.
Can PCA9306GF,115 translate between 1.0 V and 5.0 V I²C buses?
Yes, the PCA9306GF,115 supports translation from 1.0 V (VREF1) to 5.0 V (VREF2), as confirmed in Section 2 Features and Benefits. The device maintains <1.5 ns propagation delay and ≤5 Ω ON-resistance across this full range when EN is properly biased to VREF2 and pull-up resistors are sized per Table 11–13.
Is PCA9306GF,115 pin-compatible with other PCA9306 package variants?
Yes, PCA9306GF,115 shares identical pinout and electrical behavior with all PCA9306 variants (SO8, TSSOP8, VSSOP8, XQFN8, X2SON8), as verified in Figures 2–7 and Table 3. The XSON8 footprint (SOT1089) is mechanically distinct but electrically interchangeable-only PCB land pattern differs.
Does PCA9306GF,115 require external pull-up resistors on both sides of the I²C bus?
Yes, the PCA9306GF,115 requires external pull-up resistors on both SCL1/SDA1 (to VREF1) and SCL2/SDA2 (to VREF2), as stated in Section 1 General Description. Omitting either set causes open-drain lines to float, resulting in bus lockup or undefined logic states during communication.
What is the maximum supported I²C bus frequency for PCA9306GF,115?
The PCA9306GF,115 supports >2 MHz operation under ideal conditions (low CL, strong drive, optimized RPU), as noted in Section 1 General Description. However, practical limits depend on RC time constant: for 400 kHz Fast-mode, typical design uses 2.2–10 kΩ pull-ups and <20 pF total node capacitance to meet tLOW/tHIGH requirements.
PCA9306GF,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 2
- Voltage - VCCA:
- 1 V ~ 3.6 V
- Voltage - VCCB:
- 1.8 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Auto-Direction Sensing
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XFDFN
PCA9306GF,115 FAQ
1.How can I place an order for PCA9306GF,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA9306GF,115 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PCA9306GF,115 reliable?
The price and inventory of PCA9306GF,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA9306GF,115 is usually 5 days.
3.What payment methods are accepted for PCA9306GF,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA9306GF,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA9306GF,115?
PCA9306GF,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA9306GF,115 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PCA9306GF,115?
For technical support, including PCA9306GF,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA9306GF,115 requirements.
6.How does Aetrix verify that PCA9306GF,115 is sourced from the original manufacturer or authorized distributors?
All PCA9306GF,115 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PCA9306GF,115 meets industry standards.
7.What is the process for return or replacement of PCA9306GF,115?
All PCA9306GF,115 units undergo pre-shipment inspection (PSI). If there is an issue with PCA9306GF,115, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PCA9306GF,115 part is unused and in its original packaging.
Return procedure for PCA9306GF,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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