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NXP Semiconductors P82B96DP,118
- Part No.:
- P82B96DP,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
P82B96DP,118.pdf
- Description:
- IC REDRIVER I2C 2CH 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,323
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Product details
Overview
P82B96DP,118 from NXP Semiconductors is a bipolar dual bidirectional I²C-bus buffer IC that isolates local and remote bus segments while preserving full I²C protocol compliance. It supports 400 kHz operation over 20 m of wire, provides 60 mA sink capability on Tx/Ty outputs, and operates across 2 V to 15 V supply with logic-level independence on Sx/Sy pins - enabling robust interfacing between 3.3 V, 5 V, and 15 V I²C domains in industrial control backplanes.
For engineers reviewing the P82B96DP,118 datasheet, P82B96DP,118 pinout, P82B96DP,118 application, or P82B96DP,118 equivalent, this device delivers verified galvanic isolation readiness via separated Tx/Rx signal paths, latch-free bidirectional translation, and 7 pF effective input capacitance - critical for noise-immune long-cable I²C extension, SMBus level bridging, and opto-isolated node segmentation.
Technical Context
The P82B96DP,118 implements two independent, non-latching bidirectional buffers - one for SDA (Sx/Rx/Tx) and one for SCL (Sy/Ry/Ty) - each with separate forward (S→T) and reverse (R→S) signal paths. Its bipolar process ensures latch-up immunity and zero static current draw when VCC is absent, allowing safe hot-plug operation.
Logic thresholds on Sx/Sy are supply-independent (VIH min = 700 mV, VIL max = 640 mV), while Rx/Ry thresholds scale with VCC (0.42× to 0.58×VCC). Tx/Ty outputs are open-collector, rated for 15 V pull-up and >60 mA static sink, enabling direct drive of low-impedance or high-capacitance buses without external transistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 2 V to 15 V - enables single-supply operation across 3.3 V, 5 V, and 15 V systems without level-shifter circuitry |
| Max clock speed | 400 kHz - guaranteed over ≥20 m cable length per AN10148, supporting Fast-mode I²C timing integrity |
| Output sink current (Tx/Ty) | ≥60 mA static - drives 350 µA SMBus loads, 15 V lines, or twisted-pair cables with <100 Ω characteristic impedance |
| Input capacitance (all pins) | <7 pF - minimizes bus rise-time degradation and allows up to 4000 pF loading on Tx/Ty side |
| ESD protection | 3500 V HBM / 1000 V CDM - exceeds JEDEC JESD22-A114 and JESD22-C101 for production reliability |
| Operating temperature | −40 °C to +85 °C - qualified for industrial ambient environments without derating |
| Package | TSSOP8 (SOT505-1), 3 mm body width - surface-mount compatible with automated PCB assembly |
Pinout & Package
TSSOP8 package (SOT505-1), 3 mm body width, 0.65 mm lead pitch, moisture sensitivity level 1 - RoHS-compliant, tape-and-reel packaged (2500 pcs/reel).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Sx) | I²C-bus SDA interface | Local-side bidirectional data line; logic thresholds independent of VCC; max 15 V tolerant |
| 2 (VCC) | Positive supply | 2 V–15 V power input; powers internal logic and defines Rx/Ry thresholds; zero-current shutdown on loss |
| 3 (Rx) | Remote receive input | Unidirectional input from buffered bus; LOW threshold = 0.42×VCC; enables opto-coupler compatibility |
| 4 (GND) | Negative supply | Reference for all signals; no current path to VCC; maintains high-impedance state during VCC failure |
| 5 (Ty) | Remote transmit output | Open-collector SCL output; sinks ≥60 mA; pull-up to up to 15 V; no ESD diodes to VCC |
| 6 (Ry) | Remote receive input | Unidirectional input for SCL side; identical threshold behavior to Rx; supports star/multipoint topologies |
| 7 (Sy) | I²C-bus SCL interface | Local-side bidirectional clock line; electrically identical to Sx; shares same VIH/VIL specs |
| 8 (Tx) | Remote transmit output | Open-collector SDA output; identical specs to Ty; may be directly wired to Tx of another P82B96DP,118 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional I²C signal splitting | Separates SDA/SCL into isolated Tx/Rx and Ty/Ry unidirectional paths - enables opto-isolation, differential transmission, and multi-drop bus expansion without protocol modification |
| Capacitance isolation | 400 pF max on Sx/Sy side, 4000 pF max on Tx/Ty side - decouples local bus loading from remote segment, eliminating cumulative capacitance limits |
| Latch-free bipolar architecture | No internal latching structures; survives VCC removal without bus hold-down - prevents system lockup during power sequencing or fault conditions |
| Voltage-level translation | Sx/Sy logic levels fixed (VIH ≥700 mV, VIL ≤640 mV); Rx/Ry thresholds track VCC - allows seamless interconnection of 3.3 V masters with 15 V slaves or SMBus peripherals |
| Hot-swap ready I/O | All pins present <7 pF capacitance and zero leakage at VCC = 0 V - permits live insertion into powered backplanes without signal disturbance or damage |
Applications
| Industrial Backplane Extension | I²C-to-SMBus Bridging |
|---|---|
Use Scenario: Extending I²C communication across 20+ meter ribbon cables between main controller and remote sensor modules in factory automation cabinets. IC Role / Device Role / Timing Role: P82B96DP,118 acts as a passive, protocol-transparent repeater - splitting SDA/SCL into Tx/Rx pairs to drive low-impedance twisted-pair wiring while maintaining 400 kHz timing margins. Use Value: Eliminates bus capacitance stacking, supports 400 kHz operation at 25 m (per AN10148), and enables use of standard 100 Ω termination instead of high-value pull-ups. |
Use Scenario: Interfacing legacy 5 V I²C microcontrollers with 350 µA SMBus-compliant power management ICs in server PSU monitoring subsystems. IC Role / Device Role / Timing Role: P82B96DP,118 serves as a current-level translator - converting I²C's 3 mA sink capability to SMBus's strict 350 µA limit while preserving clock stretching and arbitration. Use Value: Enables direct connection without external current-limiting resistors or active translators; maintains full SMBus alert response and timeout behavior. |
| Opto-Isolated Node Segmentation | Long-Distance DDC Bus Extension |
Use Scenario: Galvanically isolating display controller I²C master from monitor-side EDID EEPROMs and backlight drivers using PC817 optocouplers. IC Role / Device Role / Timing Role: P82B96DP,118 provides clean Tx/Rx signal separation - feeding unidirectional signals to optocoupler inputs and reconstructing bidirectional I²C on the isolated side. Use Value: Achieves 400 kHz isolation without timing skew or pulse distortion; eliminates need for dual optocouplers per line or complex direction-control logic. |
Use Scenario: Extending Display Data Channel (DDC) I²C links beyond 3 m from GPU to flat-panel displays in digital signage installations. IC Role / Device Role / Timing Role: P82B96DP,118 functions as a cable driver - boosting SDA/SCL drive strength to overcome 1 nF/m cable capacitance while retaining DDC's <100 kHz timing constraints. Use Value: Supports reliable EDID reads over 25 m cables (per Figure 12); removes requirement for active repeaters or custom PHY layers in AV distribution systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I²C bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| P82B96DPZ | Drop-in alternate per NXP ordering documentation; identical TSSOP8 package, same electrical specs, and Q1/T1 reel packaging | No functional or thermal difference; validated for same −40 °C to +85 °C operating range | Select P82B96DPZ when requiring static shielding bag (SSB) packaging per packing method [3] in Table 2 |
| PCA9515APW,118 | CMOS-based, lower supply current (120 µA vs 2.5 mA), but limited to 5.5 V VCC and 1 mA Tx sink; no 15 V tolerance or SMBus 350 µA support | Restricted to 3.3 V/5 V systems only; cannot interface 15 V buses or replace P82B96DP,118 in high-noise industrial environments | Choose PCA9515APW,118 only for low-power, single-voltage embedded designs where extended voltage range and high sink current are unnecessary |
Compared with P82B96DPZ, the P82B96DP,118 offers identical performance but lacks SSB packaging; versus PCA9515APW,118, it delivers 60× higher Tx sink current, 3× wider supply range, and proven 20 m/400 kHz operation - making it the sole choice for ruggedized, multi-voltage, or long-cable I²C extension.
Availability
P82B96DP,118 is available at Aetrix Electronics and suitable for industrial backplane extension, I²C-to-SMBus bridging, and opto-isolated node segmentation requiring stable component supply across extended temperature ranges and long-cable deployments.
Supply support for P82B96DP,118 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, and IoT applications, with deep expertise in interface and bus technology.
The P82B96 product line was designed specifically to solve I²C bus extension challenges - enabling noise-immune, protocol-compliant communication across voltage domains, long cables, and galvanically isolated segments without software or timing changes.
FAQ
What is the maximum cable length supported by P82B96DP,118 at 400 kHz?
The P82B96DP,118 is specified for reliable 400 kHz operation over at least 20 meters of wire, as documented in Application Note AN10148. Performance beyond 20 m depends on cable capacitance, termination, and pull-up resistor values - with verified operation up to 25 m using 330 Ω pull-ups and twisted-pair wiring. The P82B96DP,118 achieves this via 60 mA Tx sink capability and <7 pF input capacitance, minimizing rise-time degradation.
Does P82B96DP,118 require external direction-control signals?
No, the P82B96DP,118 operates fully autonomously without direction-control pins. Its bipolar design uses asymmetric logic thresholds on Sx/Sy (fixed VIH/VIL) versus Rx/Ry (VCC-scaled) to enable automatic, non-latching bidirectional translation. This preserves native I²C arbitration, clock stretching, and multi-master behavior - unlike directional translators requiring GPIO coordination.
Can P82B96DP,118 interface 3.3 V and 15 V I²C devices on the same bus?
Yes, the P82B96DP,118 explicitly supports voltage-level translation between disparate domains: Sx/Sy pins accept 3.3 V or 5 V I²C logic with supply-independent thresholds, while Tx/Ty outputs can drive 15 V buses via external pull-ups up to 15 V. This enables direct connection of 3.3 V microcontrollers to 15 V industrial sensors without additional level shifters or voltage regulators.
Is P82B96DP,118 compatible with SMBus 350 µA specifications?
Yes, the P82B96DP,118 is qualified for SMBus interface per its 350 µA sink capability on Rx/Ry inputs and ability to drive SMBus-compliant loads on Tx/Ty outputs. Its 60 mA sink current exceeds SMBus requirements, and its fixed Sx/Sy thresholds ensure reliable recognition of SMBus alert and timeout signals - making it suitable for server power management and battery gauge applications.
What happens to P82B96DP,118 I/O pins if VCC is removed?
When VCC is removed, all P82B96DP,118 I/O pins (Sx, Sy, Tx, Ty, Rx, Ry) enter high-impedance state with zero loading - confirmed by <7 pF effective capacitance and no leakage paths. This allows safe hot-swap operation in backplane systems and prevents bus contention during power sequencing failures, a key advantage over CMOS-based buffers.
P82B96DP,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Buffer, ReDriver
- Applications:
- I2C
- Input:
- 2-Wire Bus
- Output:
- 2-Wire Bus
- Data Rate (Max):
- 400kHz
- Number of Channels:
- 2
- Delay Time:
- -
- Signal Conditioning:
- -
- Capacitance - Input:
- 7 pF
- Voltage - Supply:
- 2V ~ 15V
- Current - Supply:
- 900µA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
P82B96DP,118 FAQ
1.How can I place an order for P82B96DP,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for P82B96DP,118 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 P82B96DP,118 reliable?
The price and inventory of P82B96DP,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P82B96DP,118 is usually 5 days.
3.What payment methods are accepted for P82B96DP,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P82B96DP,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P82B96DP,118?
P82B96DP,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P82B96DP,118 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 P82B96DP,118?
For technical support, including P82B96DP,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P82B96DP,118 requirements.
6.How does Aetrix verify that P82B96DP,118 is sourced from the original manufacturer or authorized distributors?
All P82B96DP,118 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 P82B96DP,118 meets industry standards.
7.What is the process for return or replacement of P82B96DP,118?
All P82B96DP,118 units undergo pre-shipment inspection (PSI). If there is an issue with P82B96DP,118, 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 P82B96DP,118 part is unused and in its original packaging.
Return procedure for P82B96DP,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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