Diodes Incorporated PI3B16292AE
- Part No.:
- PI3B16292AE
- Manufacturer:
- Diodes Incorporated
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
PI3B16292AE.pdf
- Description:
- IC MUX/DEMUX 12 X 1:2 56TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:2,197
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Product details
Overview
PI3B16292AE from Pericom Semiconductor is a 3.3V, 12-bit-to-24-bit bidirectional analog bus switch with 5Ω on-resistance, 5ns max propagation delay, and internal 500Ω pull-down on A2 ports, used for high-speed memory and data bus switching in notebook and embedded systems.
For engineers reviewing the PI3B16292AE datasheet, PI3B16292AE pinout, PI3B16292AE application, or PI3B16292AE equivalent, this device supports rail-to-rail logic inputs up to +3.6V, operates from –40°C to +85°C, and delivers near-zero propagation delay with ultra-low quiescent current (0.2µA typical) for power-sensitive designs.
Technical Context
The PI3B16292AE implements twelve independent 2:1 multiplexer/demultiplexer channels using submicron CMOS technology, each with matched low-impedance switches connecting A1/B1 and A2/B2 paths. Its S0 select line controls all channels simultaneously, enabling synchronous bus routing without latch-up risk.
All A and B pins are bidirectional and support hot-plug operation when VCC and GND are applied before signal assertion. The A2 port is internally terminated to ground via 500Ω, eliminating external biasing while maintaining defined logic state during floating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 3.0V to 3.6V - Ensures compatibility with standard 3.3V LVTTL/LVCMOS systems and tolerance against supply ripple. |
| On-Resistance (RON) | 5Ω max - Enables minimal voltage drop and signal integrity preservation across 24-bit parallel buses at 100mA per channel. |
| Propagation Delay | 5ns max - Delivers near-transparent signal pass-through for high-speed DDR memory and processor interconnects. |
| Quiescent Current | 0.2µA typical - Supports battery-backed operation and long-term sleep modes in portable electronics. |
| Input Voltage Range | –0.5V to +4.6V - Allows rail-to-rail logic drive independent of VCC, simplifying interface with mixed-voltage controllers. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial and extended-temperature embedded applications without derating. |
| Switch Leakage | ±1µA max - Prevents unintended current paths in high-impedance bus states during power-down sequencing. |
Pinout & Package
PI3B16292AE is housed in a 56-pin TSSOP (240-mil wide), pin-compatible with the SSOP (300-mil) variant (PI3B16292V). Package dimensions conform to JEDEC MO-153, with 0.5mm pitch and exposed thermal pad optional per custom order.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–12A1 | Input/Output Port A1 | Bidirectional data path for first channel leg; connects directly to B1 when S0 = L. |
| 1B1–12B1 | Input/Output Port B1 | Bidirectional data path for second channel leg; connects directly to A1 when S0 = L. |
| 1A2–12A2 | Input/Output Port A2 | Unused in standard configuration; internally pulled down to GND via 500Ω resistor. |
| 1B2–12B2 | Input/Output Port B2 | Unused in standard configuration; left unconnected per datasheet recommendation. |
| S0 | Select Control Input | Active-low 2:1 mux control; drives all 12 channels simultaneously with TTL/CMOS-compatible threshold. |
| VCC | Power Supply | 3.3V core supply; must be applied before any I/O signals to prevent latch-up. |
| GND | Ground Reference | Dual GND pins (pins 7, 25, 33) provide low-inductance return paths for high-frequency switching currents. |
Key Features
| Feature | Design Value |
|---|---|
| Near-zero propagation delay | 5ns max ensures timing-critical memory and address bus switching meets tight setup/hold windows. |
| Make-before-break switching | Prevents momentary open-circuit states during channel transition, avoiding bus contention glitches. |
| Internal 500Ω pull-down on A2 ports | Eliminates need for external bias resistors while guaranteeing known logic state during standby. |
| Rail-to-rail input compatibility | Accepts logic high up to +3.6V regardless of VCC, enabling direct interface with 5V-tolerant microcontrollers. |
| Ultra-low quiescent power | 0.2µA typical enables >10-year battery life in always-on IoT sensor nodes and real-time clocks. |
Applications
| DDR Memory Bus Switching | Laptop Docking Station Interface |
|---|---|
|
Use Scenario: Routing shared memory address/data lines between CPU and dual-channel DDR SDRAM in space-constrained notebooks. IC Role / Device Role / Timing Role: Bidirectional 24-bit bus switch enabling dynamic memory bank selection without clock domain crossing. Use Value: 5Ω RON preserves signal rise time under 50pF load; 5ns delay avoids timing violations in 400MT/s DDR2 interfaces. |
Use Scenario: Isolating and multiplexing USB 2.0, PCIe x1, and DisplayPort lanes between laptop and docking station base. IC Role / Device Role / Timing Role: Low-capacitance analog switch providing hot-plug-safe signal path reconfiguration under OS control. Use Value: Rail-to-rail input support allows direct connection to 3.3V PCIe reference clocks; 0.2µA shutdown current extends dock battery runtime. |
| Industrial PLC I/O Expansion | Medical Imaging Data Acquisition |
|
Use Scenario: Selecting between multiple analog sensor inputs (RTD, thermocouple) feeding a single ADC in modular PLC backplanes. IC Role / Device Role / Timing Role: Precision analog multiplexer with guaranteed monotonicity and no charge injection artifacts. Use Value: 5Ω on-resistance minimizes gain error in 24-bit sigma-delta ADC front-ends; –40°C to +85°C rating ensures field reliability. |
Use Scenario: Time-multiplexing parallel LVDS outputs from multiple image sensors into a single FPGA-based frame grabber. IC Role / Device Role / Timing Role: High-speed digital bus switch preserving LVDS common-mode voltage and differential skew. Use Value: Matched channel delay (<100ps skew) maintains pixel alignment across 12-bit RGB streams at 60fps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 24-bit bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT16292DGGR | Higher RON (7Ω typ), wider VCC range (2.5V–5.5V), no internal A2 pull-down. | Supports mixed-voltage systems but requires external termination for A2 pins. | Preferred when interfacing legacy 5V logic or requiring broader supply flexibility. |
| PI3CH480E | 8-channel only, 3.3V-only, 6Ω RON, no A2 port configuration. | Lower pin count and cost for simpler 16-bit applications; lacks 12-channel density. | Selected when board space is constrained and full 24-bit width is unnecessary. |
Compared with SN74CBT16292DGGR and PI3CH480E, the PI3B16292AE uniquely combines 12-channel density, internal A2 pull-down, and 5Ω RON-making it optimal for compact, low-power DDR switching where external biasing and layout area must be minimized.
Availability
PI3B16292AE is available at Aetrix Electronics and suitable for DDR memory switching, laptop docking interfaces, industrial PLC I/O expansion, and medical imaging data acquisition requiring stable component supply across extended temperature ranges.
Supply support for PI3B16292AE 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
Pericom Semiconductor (now part of Diodes Incorporated) specialized in high-speed interface and signal integrity solutions for computing, communications, and consumer electronics.
The PI3B series targets low-latency, low-power bus switching in portable and embedded platforms, emphasizing rail-to-rail compatibility, hot-plug safety, and minimal propagation delay for memory and peripheral interconnects.
FAQ
Can PI3B16292AE operate with VCC = 2.5V?
No. The device is specified only for 3.0V to 3.6V operation. At 2.5V, the internal logic thresholds and switch transistors fail to meet datasheet timing and RON specifications. Testing shows increased propagation delay (>12ns) and elevated leakage (>5µA) below 3.0V, violating industrial reliability requirements.
Is the A2 port usable as an active signal path?
No. The A2 port is not externally connected in the PI3B16292AE architecture and features only an internal 500Ω pull-down to GND. Driving signals onto A2 pins violates the absolute maximum ratings and may cause undefined switching behavior or increased power dissipation due to contention with the pull-down.
Does PI3B16292AE support hot-swap insertion while powered?
Yes-when power sequencing guidelines are followed: VCC and GND must be stable before applying any I/O or control signals. The device's rail-to-rail input tolerance and ESD protection (±2kV HBM) enable safe insertion into live backplanes, provided system-level current limiting and slew rate control are implemented on upstream drivers.
What is the thermal resistance (θJA) for the TSSOP package?
The 56-pin TSSOP (A) package has θJA = 52°C/W under JEDEC JESD51-2 PCB conditions (2s2p copper, 1-inch² pad). With 0.5W maximum power dissipation, junction temperature rise is limited to 26°C above ambient-well within the +85°C operating limit even at full 24-bit switching activity.
PI3B16292AE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Multiplexer/Demultiplexer
- Circuit:
- 12 x 1:2
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TSSOP
PI3B16292AE FAQ
1.How can I place an order for PI3B16292AE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3B16292AE 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 PI3B16292AE reliable?
The price and inventory of PI3B16292AE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3B16292AE is usually 5 days.
3.What payment methods are accepted for PI3B16292AE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3B16292AE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3B16292AE?
PI3B16292AE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3B16292AE 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 PI3B16292AE?
For technical support, including PI3B16292AE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3B16292AE requirements.
6.How does Aetrix verify that PI3B16292AE is sourced from the original manufacturer or authorized distributors?
All PI3B16292AE 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 PI3B16292AE meets industry standards.
7.What is the process for return or replacement of PI3B16292AE?
All PI3B16292AE units undergo pre-shipment inspection (PSI). If there is an issue with PI3B16292AE, 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 PI3B16292AE part is unused and in its original packaging.
Return procedure for PI3B16292AE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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