Diodes Incorporated PI5C16212V

Overview

PI5C16212V 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 for dynamic signal routing in notebook memory subsystems and FPGA I/O expansion.

For engineers reviewing the PI5C16212V datasheet, PI5C16212V pinout, PI5C16212V application, or PI5C16212V equivalent, key selection criteria include its 3-state flow control logic (S0–S2), ultra-low quiescent current (0.1 µA), and compatibility with 5 V TTL/CMOS signaling across A/B port pairs.

Technical Context

The PI5C16212V implements a 12-channel bidirectional analog switch matrix controlled by three select inputs (S0–S2), enabling 8 distinct connection states between two 12-bit port groups (A and B). Each channel uses low-threshold MOSFETs to achieve 5 Ω typical on-resistance at 5 V supply.

It operates as a passive bus-exchange device-no internal buffering, level-shifting, or signal regeneration-so timing behavior depends solely on external RC loading and driver strength. Propagation delay is limited to the RC time constant of R_ON (≤7 Ω max) and load capacitance (e.g., 0.25 ns for 50 pF).

Key Specifications

Pinout & Package

PI5C16212V is housed in a 56-pin, 300-mil wide plastic SSOP (Shrink Small Outline Package) with 0.635 mm pitch, 1.20 mm body height, and exposed thermal pad-compatible footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bus exchange switch applications.

Compared with PI5C16212A and SN74CBT16212DGGR, the PI5C16212V delivers identical switching performance with superior thermal robustness in SSOP packaging and the lowest quiescent power-critical for battery-backed industrial gateways requiring decades of unattended operation.

Availability

PI5C16212V is available at Aetrix Electronics and suitable for notebook memory expansion, FPGA I/O multiplexing, PCIe lane sharing, and industrial PLC backplane interconnect requiring stable component supply across extended product lifecycles.

Supply support for PI5C16212V 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 legacy bus switch portfolio remains in active production and support.

The PI5C16212V belongs to Pericom's low-voltage CMOS bus exchange switch family, designed specifically for zero-delay, low-R_ON signal routing in portable and industrial 5 V systems where power efficiency and thermal resilience are critical.

FAQ

What is the maximum capacitive load the PI5C16212V can drive without signal degradation?

The PI5C16212V specifies 103 pF typical switched-path capacitance and supports loads up to 50 pF with ≤0.25 ns RC delay contribution. Driving >50 pF requires verifying rise/fall time budgets against source driver strength and system timing margins-no derating is specified beyond datasheet-tested 50 pF.

Does the PI5C16212V support level shifting between different logic families?

No. The PI5C16212V is a passive analog switch with no internal level-shifting circuitry. It passes signals within the VCC–GND range only (4.5 V to 5.5 V). Connecting 3.3 V or 1.8 V logic to its ports risks violating absolute maximum ratings and may cause latch-up or damage.

Can S0–S2 be left floating during operation?

No. Floating S0–S2 inputs cause undefined channel selection and potential partial turn-on of multiple switches, increasing leakage and crosstalk. These pins must be actively driven to valid TTL logic levels (≤0.8 V for LOW, ≥2.0 V for HIGH) using pull-up/down resistors or control logic outputs.

Is the PI5C16212V pin-compatible with earlier Pericom bus switches like PI5C16211?

No. The PI5C16212V has 56 pins and 24 bidirectional channels with 3-bit decode logic; the PI5C16211 is a 48-pin, 16-bit device with different pin mapping, truth table, and package dimensions. Direct replacement is not possible without PCB redesign.