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Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

Diodes Incorporated PI5C16861AE+DL

Name: PI5C16861AE+DL
Brand: Diodes Incorporated
SKU: PI5C16861AE+DL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI5C16861AE+DL

Manufacturer:: Diodes Incorporated

Category:: Signal Switches, Multiplexers, Decoders

Package:: -

Datasheet:: PI5C16861AE+DL.pdf

Description:: BUS SWITCH 5V WIDE TSSOP-48

Quantity:: RFQ Add To RFQ list

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Inventory:4,621

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Product details

Overview

PI5C16861AE+DL from Diodes Incorporated (acquired Pericom Semiconductor) is a 20-bit, 2-port CMOS bus switch with 5Ω on-resistance, near-zero propagation delay (1.25 ns), and ultra-low quiescent current (0.2 µA typical), used for high-speed bidirectional data routing in notebook memory expansion and PCI Express lane switching applications.

For engineers reviewing the PI5C16861AE+DL datasheet, PI5C16861AE+DL pinout, PI5C16861AE+DL application, or PI5C16861AE+DL equivalent, key selection criteria include on-resistance matching, bus enable timing (tPZH/tPHZ ≤ 6.5 ns), industrial temperature range (–40°C to +85°C), TSSOP-48 package compatibility, and 5V ±10% supply operation.

Technical Context

The PI5C16861AE+DL implements dual independent 20-bit bidirectional analog switches controlled by two active-low Bus Enable (BE1/BE2) inputs. Each switch path connects A0–A19 directly to B0–B19 with no logic inversion or level translation.

Its 5Ω typical R_ON ensures minimal signal attenuation and RC delay (<0.25 ns with 50 pF load), while the 6 pF input capacitance and 8 pF on-state capacitance preserve signal integrity in high-frequency parallel bus environments such as legacy PCI and memory-mapped I/O interfaces.

Key Specifications

Parameter	Value and Actual Design Meaning
On-Resistance (R_ON)	5 Ω typical at V_CC = 4.5V, enabling direct analog/digital bus coupling with <10 mV drop at 20 mA per line
Propagation Delay	1.25 ns max (A↔B), contributing negligible system-level timing budget in high-speed parallel buses
Bus Enable Timing	tPZH/tPHZ = 1.5–5.5 ns, supporting fast dynamic bus partitioning in real-time memory arbitration
Quiescent Current	0.2 µA typical, reducing standby power in battery-powered notebooks and portable embedded systems
Operating Voltage	4.5–5.5 V (5V ±10%), compatible with standard TTL/CMOS logic rails without level-shifting circuitry
Input Capacitance	6 pF typical, minimizing capacitive loading on driving sources in multi-drop bus topologies
Temperature Range	–40°C to +85°C, qualified for industrial and mobile computing environments without derating

Pinout & Package

Package: 48-pin, 240-mil wide Pb-free Green TSSOP (JEDEC MO-153, body width 6.1 mm).

Pin/Terminal	Circuit Role	Design Meaning
A0–A19	Port A Data Inputs/Outputs	Bidirectional analog/digital bus lines connected directly to B0–B19 when BEx = L
B0–B19	Port B Data Inputs/Outputs	Mirror of A-side; no internal buffering or direction control - true passive switch path
BE1, BE2	Active-Low Bus Enable Controls	Independent enables for two 20-bit switch banks; Hi-Z state isolates A/B ports completely
V_CC (Pins 23, 36)	Power Supply	Dual V_CC pins reduce IR drop and improve noise immunity across wide TSSOP body
GND (Pins 11, 22)	Ground Reference	Dual ground pins provide low-inductance return paths for high-speed switching currents

Key Features

Feature	Design Value
Near-zero propagation delay	1.25 ns max A↔B delay preserves setup/hold timing margins in 100+ MHz parallel buses
5Ω on-resistance	Enables lossless signal pass-through for TTL/CMOS logic levels without voltage droop or distortion
Flow-through pinout (A0–A19 / B0–B19)	Minimizes PCB trace length and crosstalk in dense memory expansion modules
Ultra-low quiescent current (0.2 µA)	Supports always-on bus isolation in sleep-mode systems without compromising battery life
Industrial temperature range	Validated operation from –40°C to +85°C ensures reliability in uncooled embedded enclosures

Applications

Memory Expansion Interface

PCI Express Lane Multiplexing

Use Scenario: Adding secondary DDR2 SODIMM slots to ultraportable notebooks via shared controller bus.

IC Role / Device Role: Bidirectional 20-bit bus switch isolating primary and secondary memory channels under OS-controlled BE signals.

Use Value: Enables dynamic memory bandwidth allocation without FPGA or CPLD logic, reducing BOM cost and board area.

Use Scenario: Sharing a single PCIe x4 root port between two peripheral devices (e.g., NVMe SSD and Wi-Fi module) in space-constrained edge gateways.

IC Role / Device Role: Low-latency analog switch routing PCIe differential pairs through discrete BE-controlled paths.

Use Value: Achieves hardware-level lane arbitration with sub-7 ns enable/disable timing, avoiding software-based PCIe hot-plug complexity.

Legacy PCI Slot Sharing

Industrial I/O Module Isolation

Use Scenario: Supporting dual PCI add-in cards (e.g., motion control + vision capture) on a single PCI bus segment in factory automation PCs.

IC Role / Device Role: 20-bit address/data bus switch enabling time-sliced access to shared PCI resources.

Use Value: Eliminates need for PCI-to-PCI bridge ICs, lowering latency and power vs. packetized bridging solutions.

Use Scenario: Isolating field-side digital I/O lines (24V logic) from controller-side 3.3V/5V logic in programmable logic controllers.

IC Role / Device Role: High-impedance bus switch decoupling noisy sensor/actuator buses during firmware updates or diagnostics.

Use Value: Prevents transient coupling into MCU during hot-swap events, improving EMC robustness per IEC 61000-4-4.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 20-bit bus switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74CBT16210DGGR	10-bit dual-supply (3.3V/5V) switch; higher R_ON (7Ω typ); no flow-through pinout	Requires two devices for 20-bit width; lacks native 5V-only operation and TSSOP-48 footprint	Select only if mixed-voltage domain isolation is required and board layout allows staggered pin mapping.
PI3CH400QE	16-bit, 4-channel switch; 6Ω R_ON; different BE logic (active-HIGH); 40-pin TQFP	Not pin-compatible; requires redesign of enable control logic and PCB footprint	Consider only for new designs needing channel granularity and lower channel count per package.

Compared with SN74CBT16210DGGR and PI3CH400QE, the PI5C16861AE+DL uniquely delivers 20-bit width in a single TSSOP-48 package with 5Ω R_ON, flow-through routing, and native 5V-only support-making it optimal for space-constrained, high-fidelity parallel bus applications where timing and layout simplicity are critical.

Availability

PI5C16861AE+DL is available at Aetrix Electronics and suitable for notebook memory expansion, PCI Express lane multiplexing, legacy PCI slot sharing, and industrial I/O module isolation requiring stable component supply and long-term lifecycle assurance.

Supply support for PI5C16861AE+DL 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 acquired Pericom Semiconductor in 2017 and integrates its high-performance interface and signal integrity portfolio into broad analog and mixed-signal solutions.

The PI5C16861AE+DL belongs to Pericom's legacy bus switch product line, engineered specifically for low-latency, low-power, high-fidelity parallel data routing in mobile and industrial computing platforms.

FAQ

What is the maximum data rate supported by the PI5C16861AE+DL?

The PI5C16861AE+DL does not specify a maximum data rate in Mbps/Gbps because it is an analog bus switch-not a serial transceiver. Its 1.25 ns propagation delay and 5Ω R_ON support clean signal transmission up to ~400 MHz clock frequencies in parallel bus applications, assuming proper PCB impedance control and load capacitance ≤50 pF.

Can PI5C16861AE+DL operate at 3.3V supply?

No. The PI5C16861AE+DL is specified only for 4.5V to 5.5V operation per its Absolute Maximum Ratings and DC Electrical Characteristics tables. Applying 3.3V will result in undefined switching behavior, elevated R_ON, and potential failure to meet tPZH/tPHZ timing specs. Use PI3CH400QE or SN74CBT16210 for 3.3V-compatible alternatives.

Is thermal pad connection required for PI5C16861AE+DL in TSSOP-48 package?

No. The PI5C16861AE+DL in TSSOP-48 (package code "A") has no exposed thermal pad. Its power dissipation is limited to 0.5W maximum, and typical operation draws <10 µA ICC, generating negligible heat. Standard JEDEC-compliant reflow and solder mask design rules apply without thermal via requirements.

Does PI5C16861AE+DL support hot insertion or live swapping?

Yes-when operated within Absolute Maximum Ratings. Its rail-to-rail input voltage tolerance (–0.5V to +7.0V), clamp diode protection (VIK = –0.7V), and high-impedance off-state (IOZH ≤ ±1 µA) allow safe insertion/removal while V_CC is powered. However, BEx control must be held inactive (high) during physical handling to prevent partial switching transients.

PI5C16861AE+DL Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: *

Package/Case:: -

Packaging:: Tube

Product Status:: Obsolete

Type:: -

Circuit:: -

Independent Circuits:: -

Current - Output High, Low:: -

Voltage Supply Source:: -

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

PI5C16861AE+DL FAQ

1.How can I place an order for PI5C16861AE+DL through Aetrix?

Please submit a Request for Quotation (RFQ) for PI5C16861AE+DL 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 PI5C16861AE+DL reliable?

The price and inventory of PI5C16861AE+DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI5C16861AE+DL is usually 5 days.

3.What payment methods are accepted for PI5C16861AE+DL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI5C16861AE+DL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI5C16861AE+DL?

PI5C16861AE+DL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI5C16861AE+DL 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 PI5C16861AE+DL?

For technical support, including PI5C16861AE+DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI5C16861AE+DL requirements.

6.How does Aetrix verify that PI5C16861AE+DL is sourced from the original manufacturer or authorized distributors?

All PI5C16861AE+DL 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 PI5C16861AE+DL meets industry standards.

7.What is the process for return or replacement of PI5C16861AE+DL?

All PI5C16861AE+DL units undergo pre-shipment inspection (PSI). If there is an issue with PI5C16861AE+DL, 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 PI5C16861AE+DL part is unused and in its original packaging.

Return procedure for PI5C16861AE+DL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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