Diodes Incorporated PI5C16212AE

Overview

PI5C16212AE from Pericom Semiconductor is a 24-bit bus exchange switch with dual 12-bit bidirectional data paths, 5 Ω on-resistance, near-zero propagation delay, and industrial temperature range (–40°C to +85°C), used in high-speed notebook memory bus routing and FPGA I/O expansion.

For engineers reviewing the PI5C16212AE datasheet, PI5C16212AE pinout, PI5C16212AE application, or PI5C16212AE equivalent, this page delivers verified pin functions, truth-table-driven switching behavior, real-world bus-exchange use cases, and validated drop-in alternatives for memory and logic interface redesigns.

Technical Context

The PI5C16212AE implements a 3-bit decoded control architecture (S0–S2) to select one of eight bidirectional 12-bit channel configurations between two independent 24-bit port groups (A and B). Each channel operates as a low-impedance analog pass gate without level-shifting or buffering.

It supports direct DC-coupled bus connection with no added propagation delay beyond RC time constant (≤0.25 ns for 50 pF load), and maintains signal integrity across all 24 channels simultaneously under 5 V ±10% supply, with <0.1 µA quiescent current.

Key Specifications

Pinout & Package

PI5C16212AE is packaged in a Pb-free, green 56-pin thin plastic TSSOP (240-mil width, 1.20 mm max height), compliant with JEDEC MO-153AC. Pin pitch is 0.5 mm; body dimensions are 11.3 mm × 4.4 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 24-bit bidirectional bus exchange applications.

Compared with PI5C16212VE and SN74CBT16212DGGR, the PI5C16212AE offers optimal thermal performance in space-constrained portable designs, while maintaining full functional equivalence and pin compatibility with both alternatives - making it ideal for new notebook and FPGA carrier board designs requiring green packaging.

Availability

PI5C16212AE is available at Aetrix Electronics and suitable for DDR memory isolation, FPGA I/O expansion, and notebook system memory multiplexing requiring stable component supply and Pb-free compliance.

Supply support for PI5C16212AE 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 was a fabless provider of high-speed interface and timing solutions, acquired by Diodes Incorporated in 2016; its bus switch portfolio remains actively supported and qualified.

The PI5C16212AE belongs to Pericom's low-R_ON CMOS bus exchange switch family, designed specifically for zero-delay, low-power, bidirectional signal routing in portable computing and programmable logic systems.

FAQ

What is the maximum capacitive load the PI5C16212AE can drive without signal degradation?

The PI5C16212AE is characterized for loads up to 50 pF, with an RC time constant ≤0.25 ns. Its 5 Ω on-resistance ensures minimal rise-time degradation even at 50 pF; however, sustained loads >75 pF may exceed the 120 mA absolute max output current rating and require external termination or buffering.

Can PI5C16212AE operate with mixed-voltage I/O (e.g., 3.3 V signals on a 5 V supply)?

Yes - the PI5C16212AE is a passive analog switch; its A/B pins tolerate –0.5 V to +7.0 V regardless of VCC. Signals at 3.3 V, 2.5 V, or 1.8 V pass through unaltered when VCC = 5 V, provided voltage levels stay within absolute max ratings and do not violate input thresholds of downstream receivers.

Does PI5C16212AE support hot insertion or live swapping of connected buses?

No - the device lacks powered-off protection circuitry. Applying signals to A/B pins while VCC = 0 V violates the absolute maximum rating of –0.5 V to +7.0 V on any pin relative to GND. Hot-swap requires external series resistors or dedicated hot-swap controllers.

How does the S0–S2 truth table map to physical channel selection?

S0–S2 decode to eight states: LLL disables all switches (high-Z), LLH connects 1B–12B to 1A–12A, LHL connects 13B–24B to 1A–12A, and so on - each state activates exactly one 12-bit crossbar path between A and B ports, with no partial or overlapping connections permitted per the truth table.