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Diodes Incorporated PI3CH800LE
- Part No.:
- PI3CH800LE
- Manufacturer:
- Diodes Incorporated
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
PI3CH800LE.pdf
- Description:
- IC BUS SWITCH 1 X 8:8 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,748
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Product details
Overview
PI3CH800LE from Diodes Incorporated is an 8-bit bus switch with active-low enable, designed for high-bandwidth signal routing in 1.8V/2.5V/3.3V systems. It delivers 500 MHz bandwidth, <0.3 ns propagation delay, 4–8 Ω on-resistance, and rail-to-rail switching (0–5 V with 3.3 V supply), enabling hot-plug-capable data path control in server backplanes and PCIe interconnects.
For engineers reviewing the PI3CH800LE datasheet, PI3CH800LE pinout, PI3CH800LE application, or PI3CH800LE equivalent, this device supports high-fidelity analog/digital signal switching, low-noise hot-docking interfaces, and I/O-tolerant logic-level translation across mixed-voltage domains.
Technical Context
The PI3CH800LE implements eight independent bidirectional MOSFET switches with individual channel enable control logic. Its active-low EN pin drives all eight A-B paths simultaneously, and its CMOS-compatible inputs tolerate up to 6.0 V regardless of VCC (1.8 V/2.5 V/3.3 V), supporting robust hot-insertion behavior without external level shifters.
Switch operation is characterized by near-zero RC-induced delay (0.3 ns time constant into 10 pF), 3.5 pF off-capacitance, and 7.0 pF on-capacitance - optimized for minimal signal integrity degradation in DDR, USB, and LVDS applications requiring sub-nanosecond timing fidelity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 500 MHz – Enables full-speed switching of PCIe Gen1/USB 2.0 signals without attenuation |
| On-Resistance | 4–8 Ω (typ. 5 Ω at 3.3 V) – Minimizes voltage drop and power loss in high-current data paths |
| Propagation Delay | <0.3 ns – Adds negligible timing skew in synchronous bus architectures |
| I/O Tolerance | 6.0 V DC input tolerance in ON/OFF states – Supports safe hot-plug operation in backplane environments |
| ESD Protection | 8 kV HBM – Ensures robust handling during board assembly and field service |
| Operating Temp | –40°C to +85°C – Validated for industrial-grade embedded and telecom infrastructure use |
| Supply Voltage | 1.8 V / 2.5 V / 3.3 V – Enables direct integration into multi-rail SoC subsystems without regulators |
Pinout & Package
PI3CH800LE is packaged in a 20-pin TSSOP (173-mil wide, RoHS-compliant, Pb-free & Green). The package provides thermal and mechanical compatibility with standard surface-mount reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Active-Low Enable Input | Drives all 8 channels simultaneously; accepts 0–6 V logic levels independent of VCC |
| A0–A7 | Input/Output Port A | Bidirectional signal terminal; connects to source-side bus or controller interface |
| B0–B7 | Input/Output Port B | Bidirectional signal terminal; routes to destination bus, peripheral, or expansion slot |
| VCC | Positive Supply | 1.8 V / 2.5 V / 3.3 V logic supply; powers internal gate drive and level-shifting circuitry |
| GND | Ground Reference | Common return path for all switch channels and control logic; critical for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Hot-Insertion Capability | Withstands 6 V transient input stress for ≤20 ns without latch-up or damage, enabling live backplane upgrades |
| Rail-to-Rail Switching | Supports 0–5 V analog/digital signals with 3.3 V supply, eliminating need for external clamping diodes |
| Low On-Capacitance | 3.5 pF (off), 7.0 pF (on) – Reduces crosstalk and maintains signal rise/fall times in high-speed traces |
| Ultra-Low Quiescent Current | 0.2–0.5 mA ICC – Minimizes standby power in always-on communication modules and dock controllers |
| High Off-Isolation | –60 dB @ 10 MHz – Prevents signal leakage between inactive channels in multiplexed sensor or audio paths |
Applications
| PCIe Gen1 Interposer | Hot-Swappable Server Backplane |
|---|---|
Use Scenario: Routing PCIe reference clock and data lanes between CPU and add-in cards in modular blade servers. IC Role / Device Role / Timing Role: Bidirectional bus switch enabling dynamic lane allocation and isolation during card insertion/removal. Use Value: Maintains signal integrity at 2.5 Gbps with <0.3 ns added delay and 500 MHz bandwidth, preventing link training failures. |
Use Scenario: Managing hot-plug detection and power sequencing for midplane-connected line cards in telecom chassis. IC Role / Device Role / Timing Role: Signal-level isolation switch that blocks backplane voltage transients during insertion while preserving logic state. Use Value: 6 V I/O tolerance and 8 kV ESD rating prevent latch-up during live insertion, reducing field failure rates. |
| USB 2.0 Multiplexer | Dual-Voltage Logic Translator |
Use Scenario: Selecting between two USB host controllers sharing a single downstream port in embedded docking stations. IC Role / Device Role / Timing Role: Low-capacitance, bidirectional analog switch for D+/D− differential pairs. Use Value: 3.5 pF off-capacitance and –60 dB off-isolation suppress crosstalk, ensuring full-speed USB compliance. |
Use Scenario: Level-shifting between 1.8 V FPGA I/O banks and 3.3 V peripheral interfaces in industrial PLC modules. IC Role / Device Role / Timing Role: Voltage-agnostic bidirectional translator supporting mixed-supply domain bridging. Use Value: Rail-to-rail operation (0–5 V with 3.3 V supply) eliminates external bias networks and reduces BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT3245APWR | Higher typical RON (7 Ω), no 1.8 V support, 5 V only supply | Limited to 5 V systems; lacks hot-plug tolerance and rail-to-rail analog capability | Select when legacy 5 V-only designs require pin-compatible replacement with lower cost |
| TS3A27518ERTER | Lower bandwidth (300 MHz), higher on-capacitance (9.5 pF), 1.65–3.6 V supply | Suitable for lower-speed I²C/SPI but not PCIe/USB 2.0 due to bandwidth and crosstalk limits | Prefer for space-constrained designs needing 16-pin QFN and integrated ESD protection beyond HBM |
Compared with SN74CBT3245APWR and TS3A27518ERTER, PI3CH800LE uniquely combines 500 MHz bandwidth, 1.8 V compatibility, and 6 V I/O tolerance-making it the only option qualified for hot-plug PCIe interposers and mixed-voltage backplane switching where signal fidelity and transient resilience are co-critical.
Availability
PI3CH800LE is available at Aetrix Electronics and suitable for PCIe interposers, hot-swappable server backplanes, USB 2.0 multiplexers, and dual-voltage logic translators requiring stable component supply across industrial, telecom, and embedded computing programs.
Supply support for PI3CH800LE 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and ICs, specializing in high-performance signal integrity, power management, and protection solutions for industrial, computing, and communications markets.
The PI3CH800LE belongs to Diodes' high-bandwidth bus switch product line, engineered specifically for hot-plug-capable, low-latency signal routing in multi-voltage data center and telecom infrastructure.
FAQ
What supply voltages does the PI3CH800LE support?
The PI3CH800LE operates across three nominal supply rails: 1.8 V ±10%, 2.5 V ±10%, and 3.3 V ±10%. Each voltage grade is fully characterized for on-resistance, propagation delay, and bandwidth per the DS40809 datasheet. The device maintains 500 MHz bandwidth and <0.3 ns propagation delay across all supported supplies.
Can the PI3CH800LE be used for analog signal switching?
Yes-the PI3CH800LE supports rail-to-rail analog switching (0–5 V with 3.3 V supply; 0–3.3 V with 2.5 V supply) and exhibits low on-capacitance (7.0 pF) and high off-isolation (–60 dB). Its 5 Ω typical on-resistance and 500 MHz bandwidth make it suitable for video, audio, and sensor signal routing where bandwidth and linearity are critical.
Is the PI3CH800LE pin-compatible with other Diodes bus switches?
No-PI3CH800LE uses a dedicated 20-pin TSSOP footprint with EN, A0–A7, B0–B7, VCC, and GND. It is not pin-compatible with PI3CH400 (4-bit) or PI3CH200 (2-bit) variants, which use different pin counts and enable configurations. Layout reuse requires explicit verification against the DS40809 mechanical drawings.
Does the PI3CH800LE require external pull-up or pull-down resistors on EN?
No-EN is a CMOS-compatible active-low input with ±1 μA leakage current over temperature. It may be driven directly from FPGA GPIO, microcontroller pins, or open-drain logic without external biasing. Driving EN rail-to-rail (0 V to VCC or up to 6 V) minimizes static power consumption and ensures clean switching transitions.
PI3CH800LE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Bus Switch
- Circuit:
- 1 x 8:8
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 1.8V, 2.5V, 3.3V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
PI3CH800LE FAQ
1.How can I place an order for PI3CH800LE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3CH800LE 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 PI3CH800LE reliable?
The price and inventory of PI3CH800LE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3CH800LE is usually 5 days.
3.What payment methods are accepted for PI3CH800LE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3CH800LE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3CH800LE?
PI3CH800LE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3CH800LE 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 PI3CH800LE?
For technical support, including PI3CH800LE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3CH800LE requirements.
6.How does Aetrix verify that PI3CH800LE is sourced from the original manufacturer or authorized distributors?
All PI3CH800LE 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 PI3CH800LE meets industry standards.
7.What is the process for return or replacement of PI3CH800LE?
All PI3CH800LE units undergo pre-shipment inspection (PSI). If there is an issue with PI3CH800LE, 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 PI3CH800LE part is unused and in its original packaging.
Return procedure for PI3CH800LE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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