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Diodes Incorporated PI3CH800QE
- Part No.:
- PI3CH800QE
- Manufacturer:
- Diodes Incorporated
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 20-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
PI3CH800QE.pdf
- Description:
- IC BUS SWITCH 1 X 8:8 20QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,097
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Product details
Overview
PI3CH800QE from Diodes Incorporated is an 8-bit bus switch with active-low enable, designed for high-bandwidth signal routing in low-voltage systems (1.8V/2.5V/3.3V). It delivers 500 MHz bandwidth, 4–8 Ω on-resistance, near-zero propagation delay (<0.3 ns), and rail-to-rail switching capability-enabling hot-plug data paths in telecom backplanes and high-speed digital interconnects.
For engineers reviewing the PI3CH800QE datasheet, PI3CH800QE pinout, PI3CH800QE application, or PI3CH800QE equivalent, key selection criteria include its 500 MHz –3 dB bandwidth, 5 V I/O tolerance across all supply states, 8 kV HBM ESD rating, and support for hot-insertion in 1.8V–3.3V logic domains without level-shifting.
Technical Context
The PI3CH800QE implements eight independent bidirectional analog/digital switches controlled by a single active-low enable (EN) input. Each channel features low-capacitance (7.0 pF on, 3.5 pF off) and low-impedance conduction (typ. 4–6 Ω at 3.3V), enabling minimal signal distortion in differential and single-ended high-speed data paths.
Its architecture supports rail-to-rail voltage translation: with 3.3V supply, it passes 0–5V signals; with 2.5V supply, 0–3.3V; and with 1.8V supply, 0–2.25V. The device maintains 5 V I/O tolerance regardless of VCC state (ON/OFF), critical for hot-swap isolation and backplane survivability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (–3 dB) | 500 MHz - enables full-speed USB 2.0, PCIe Gen1, and DDR2/3 address/data bus switching |
| On-Resistance (RON) | 4–8 Ω at 3.3V - ensures <1% signal attenuation for 50 Ω transmission lines |
| Propagation Delay | <0.3 ns - adds negligible timing skew in synchronous parallel bus architectures |
| I/O Tolerance | 6.0 V absolute max, 5 V functional - allows direct interfacing to legacy 5 V logic without external clamping |
| ESD Rating (HBM) | 8 kV - meets industrial-grade robustness requirements for board-level handling and field deployment |
| Supply Voltage Range | 1.8 V / 2.5 V / 3.3 V - supports multi-rail system integration without dedicated level shifters |
| Enable Polarity | Active-low EN - simplifies control logic in systems using open-drain or pull-up-based reset architectures |
Pinout & Package
PI3CH800QE is packaged in a 20-pin QSOP (150-mil wide, RoHS-compliant, Pb-free & Green). Pin pitch is 0.65 mm; body width is 7.5 mm; total package dimensions are 12.8 × 7.5 × 2.35 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 19) | Active-low global enable | Drives all 8 channels simultaneously; logic HIGH disconnects A–B paths into high-impedance state |
| A0–A7 (Pins 2–9) | Input/Output port A | Bidirectional signal terminal; electrically identical to Bx pins; supports rail-to-rail voltage swing |
| GND (Pin 10) | Power ground reference | Primary return path for switch current and internal biasing; must be low-inductance connection |
| B0–B7 (Pins 11–18) | Input/Output port B | Complementary signal terminal to Ax; matched impedance and capacitance for differential pair routing |
| VCC (Pin 20) | Positive supply input | Supplies internal logic and switch bias; accepts 1.8 V / 2.5 V / 3.3 V ±10%; powers ESD protection circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Hot-plug capable | Withstands 6 V transient on I/O pins during insertion while VCC = 0 V - eliminates need for external hot-swap controllers |
| Zero added ground bounce | No additional substrate noise injected during switching - preserves signal integrity in mixed-signal PCB layouts |
| Multi-supply compatibility | Single device operates across 1.8 V, 2.5 V, and 3.3 V rails - reduces BOM count in heterogeneous voltage domain systems |
| High off-isolation | –60 dB at 10 MHz - prevents crosstalk between adjacent channels in dense memory or data bus routing |
| Latch-up immunity | >200 mA per JESD17 - ensures robust operation under transient overvoltage or ESD events in industrial environments |
Applications
| Telecom Backplane Switching | USB 2.0 Signal Routing |
|---|---|
Use Scenario: Hot-swappable line cards in carrier-grade routers require signal path isolation during insertion/removal without disrupting active links. IC Role / Device Role / Timing Role: Bidirectional bus switch providing galvanic isolation and voltage translation between backplane and card-side logic. Use Value: 5 V I/O tolerance and 8 kV ESD withstand eliminate external TVS diodes; 500 MHz bandwidth preserves eye diagram integrity for 480 Mbps USB signaling. | Use Scenario: Motherboard-level USB 2.0 hub routing where multiple ports share a common controller but require independent enable/disable control. IC Role / Device Role / Timing Role: Low-latency, low-capacitance signal gate enabling dynamic port allocation without timing skew. Use Value: Sub-0.3 ns propagation delay avoids setup/hold violations; 7.0 pF on-capacitance minimizes signal rise-time degradation. |
| DDR Memory Bus Isolation | Differential LVDS Data Multiplexing |
Use Scenario: Isolating DDR2/3 address/command buses during memory training or power-down sequences to prevent leakage current and bus contention. IC Role / Device Role / Timing Role: High-speed digital switch enabling clean break-before-make transitions in synchronous memory subsystems. Use Value: 4–8 Ω RON ensures impedance continuity; 3.5 pF off-capacitance prevents false triggering on adjacent strobes or clocks. | Use Scenario: Multiplexing dual-camera LVDS streams onto a shared image processor interface in automotive ADAS modules. IC Role / Device Role / Timing Role: Matched-pair analog switch preserving differential amplitude and common-mode rejection across both lanes. Use Value: Identical RON and capacitance on A/B sides maintain phase matching; rail-to-rail operation accommodates LVDS common-mode range shifts. |
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 @ 3.3 V); no 1.8 V operation; 500 MHz bandwidth not specified | Designed for 3.3 V-only systems; lacks rail-to-rail switching and hot-plug hardening | Select when cost sensitivity outweighs bandwidth and multi-supply flexibility |
| MAX4615ESE+ | Single-channel, not 8-bit; higher propagation delay (1.5 ns); requires external pull-up on EN | Targeted at precision analog switching, not high-speed digital bus routing | Choose only for low-channel-count analog multiplexing where bandwidth <100 MHz suffices |
Compared with SN74CBT3245APWR and MAX4615ESE+, the PI3CH800QE uniquely combines 8-channel density, 500 MHz bandwidth, 1.8–3.3 V supply scalability, and hot-plug resilience-making it the only option qualified for telecom backplane and USB 2.0 hub applications requiring simultaneous performance across all three metrics.
Availability
PI3CH800QE is available at Aetrix Electronics and suitable for telecom backplane switching, USB 2.0 signal routing, and DDR memory bus isolation requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for PI3CH800QE 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 integrated circuits, specializing in high-performance, high-reliability components for power management, signal integrity, and protection applications.
The PI3CH800QE belongs to Diodes' high-bandwidth analog switch product line, engineered specifically for hot-plug-capable, multi-voltage-domain signal routing in datacom, telecom, and computing infrastructure.
FAQ
What is the maximum allowable voltage on A/B pins when VCC = 0 V?
The PI3CH800QE supports 5 V I/O tolerance even with VCC unpowered. Absolute maximum rating is 6.0 V on any A or B pin for ≤20 ns transients. Sustained application above 5 V or longer than 20 ns risks permanent damage per datasheet stress limits.
Does PI3CH800QE require external pull-up or pull-down resistors on EN?
No external resistors are required. The EN input has CMOS-compatible thresholds (VIH ≥ 2.0 V at 3.3 V supply; VIL ≤ 0.8 V) and draws ≤±1 μA leakage current. Direct connection to FPGA GPIO or microcontroller output is sufficient for reliable enable/disable control.
Can PI3CH800QE switch differential LVDS signals without degrading common-mode rejection?
Yes. With matched RON (±0.5 Ω typical), identical A/B capacitance (7.0 pF on), and sub-0.3 ns propagation skew, the PI3CH800QE preserves differential pair balance. Its rail-to-rail operation supports LVDS common-mode range (0.6–1.8 V) across all supported supply voltages.
Is thermal derating required for continuous 120 mA per channel operation?
No. The 120 mA maximum output current rating is specified at TA = +85°C and applies to steady-state DC conditions. At 3.3 V supply and 8 Ω RON, power dissipation per channel is ≤32 mW - well within the 0.5 W total package limit. No derating needed below +85°C ambient.
PI3CH800QE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 20-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-QSOP
PI3CH800QE FAQ
1.How can I place an order for PI3CH800QE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3CH800QE 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 PI3CH800QE reliable?
The price and inventory of PI3CH800QE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3CH800QE is usually 5 days.
3.What payment methods are accepted for PI3CH800QE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3CH800QE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3CH800QE?
PI3CH800QE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3CH800QE 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 PI3CH800QE?
For technical support, including PI3CH800QE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3CH800QE requirements.
6.How does Aetrix verify that PI3CH800QE is sourced from the original manufacturer or authorized distributors?
All PI3CH800QE 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 PI3CH800QE meets industry standards.
7.What is the process for return or replacement of PI3CH800QE?
All PI3CH800QE units undergo pre-shipment inspection (PSI). If there is an issue with PI3CH800QE, 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 PI3CH800QE part is unused and in its original packaging.
Return procedure for PI3CH800QE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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