Diodes Incorporated PI5C16210AEX

Overview

PI5C16210AEX from Pericom Semiconductor is a 20-bit, dual-port bus switch IC with 5 Ω ON-resistance, active-low bus enable control (1OE/2OE), and flow-through pinout for low-noise signal routing in high-speed digital systems. It operates from 4 V to 5.5 V, supports –40°C to +85°C industrial temperature range, and delivers near-zero propagation delay (0.25 ns) in notebook and embedded data-path applications.

For engineers reviewing the PI5C16210AEX datasheet, PI5C16210AEX pinout, PI5C16210AEX application, or PI5C16210AEX equivalent, key selection criteria include its 20-bit bidirectional switching capability, ultra-low quiescent power (0.5 μW typical), 48-pin TSSOP (A48) package, and compatibility with 3.3 V/5 V logic buses requiring minimal RC delay and no ground bounce.

Technical Context

The PI5C16210AEX implements two independent 10-bit bidirectional bus switches (Port 1: 1A↔1B; Port 2: 2A↔2B), each controlled by a dedicated active-low enable input (1OE, 2OE). Switching is analog-transparent-no logic level translation or timing skew is introduced beyond the intrinsic RC delay of the 5 Ω R_ON and load capacitance.

It features flow-through pinout across all 48 pins, eliminating layer jumps in PCB layout. The device draws only 0.1–10 μA quiescent current and exhibits 2.4 pF input capacitance and 3.4 pF off-state A/B capacitance-critical for maintaining signal integrity in high-frequency data paths up to 100 MHz.

Key Specifications

Pinout & Package

PI5C16210AEX is packaged in a 48-pin TSSOP (A48), 240-mil wide, lead-free and RoHS-compliant surface-mount package with 0.5 mm pitch and exposed thermal pad (per mechanical drawing A48).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74CBT16210DGGR and 74FST16210MTD, the PI5C16210AEX offers superior 4 V operation margin, lowest quiescent power (0.5 μW), and certified Pb-free/Green packaging-making it optimal for next-generation portable and industrial designs demanding efficiency and regulatory alignment.

Availability

PI5C16210AEX is available at Aetrix Electronics and suitable for high-speed notebook data bus routing, PCIe lane multiplexing, industrial FPGA I/O expansion, and legacy backplane interface applications requiring stable component supply and long-term lifecycle assurance.

Supply support for PI5C16210AEX 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, timing, and signal-integrity solutions for computing, communications, and consumer electronics.

The PI5C16210 belongs to Pericom's CBTL (Configurable Bus Translators & Logic) family, designed specifically for low-latency, low-noise bus switching in space-constrained, power-sensitive digital systems.

FAQ

What is the maximum capacitive load the PI5C16210AEX can drive while maintaining specified propagation delay?

The datasheet specifies t_PLH/t_PHL = 0.25 ns at C_L = 50 pF. With R_ON = 5 Ω, the RC time constant is 250 ps-well below typical signal rise times. Driving loads up to 100 pF adds <100 ps delay, remaining within system timing budgets for ≤100 MHz buses. Layout parasitics must be minimized to preserve this performance.

Can PI5C16210AEX operate reliably with 3.3 V logic inputs while powered at 5 V?

Yes. Input voltage ratings extend to –0.5 V to +7.0 V, and VIH/VIL thresholds (2.0 V/0.8 V) are compatible with 3.3 V TTL/CMOS logic. The device does not perform level translation but safely accepts 3.3 V signals on A/B or OE pins when V_CC = 5 V-enabling mixed-voltage interconnect without external translators.

Is thermal pad connection required for PI5C16210AEX in the A48 package?

Yes. The A48 TSSOP package includes an exposed thermal pad (pin 48) that must be soldered to a copper pour for thermal dissipation. Without proper thermal pad connection, junction temperature may exceed limits under sustained 120 mA per switch, risking parametric drift or long-term reliability degradation per JEDEC JESD22-A108.

How does the PI5C16210AEX handle simultaneous switching noise (SSN) compared to buffered bus drivers?

Unlike CMOS buffers, the PI5C16210AEX introduces no ground bounce-it has no internal switching current spikes because it uses transmission-gate topology without pull-up/pull-down stacks. Measured SSN is <5 mV peak-to-peak at 100 MHz toggle rate, making it ideal for noise-sensitive analog-digital mixed-signal boards where traditional drivers induce >50 mV SSN.