Diodes Incorporated PI5C3253WE

Overview

PI5C3253WE from Pericom Semiconductor is a dual 4:1 multiplexer/demultiplexer bus switch with three-state outputs, pin-compatible with 74F253 and 74ALS/AS/LS253 logic families. It features 5Ω on-resistance, near-zero propagation delay (0.25 ns), ultra-low quiescent current (0.2 μA typical), and operates over –40°C to +85°C ambient range. Used in notebook I/O bus routing where low power and signal integrity are critical.

For engineers reviewing the PI5C3253WE datasheet, PI5C3253WE pinout, PI5C3253WE application, or PI5C3253WE equivalent, key selection criteria include its 5Ω R_ON, 0.25 ns t_IY, 120 mA output drive, ESD protection up to 2 kV HBM, and compatibility with 5 V TTL/CMOS logic levels.

Technical Context

The PI5C3253WE implements two independent 4:1 analog bus switches controlled by shared S1/S0 select lines and separate EA/EB enables. Each switch connects one of four input pairs (IA0–IA3, IB0–IB3) to corresponding outputs YA/YB using low-R_ON NMOS pass transistors without level-shifting or buffering.

Its architecture delivers direct signal path continuity when enabled-no internal logic gates or latches-ensuring minimal RC delay (≈0.25 ns for 50 pF load) and zero ground bounce. Control inputs exhibit 150 mV hysteresis, supporting clean switching under noisy conditions.

Key Specifications

Pinout & Package

PI5C3253WE is supplied in a 16-pin 150-mil wide SOIC package (JEDEC MS-012D/AC compliant), with 1.27 mm lead pitch and standard gull-wing lead form.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 4:1 bus switch applications.

Compared with SN74CBT3253CPWR and PI3CH485LE, PI5C3253WE uniquely balances ultra-low ICC (0.2 μA), full 5 V tolerance, and 2 kV HBM in a pin-compatible SOIC package-making it optimal for legacy-compatible, battery-sensitive notebook and embedded controller applications.

Availability

PI5C3253WE is available at Aetrix Electronics and suitable for notebook I/O routing, embedded controller interface sharing, and legacy peripheral multiplexing requiring stable component supply and long-term lifecycle support.

Supply support for PI5C3253WE 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 widely deployed in computing and industrial systems.

The PI5C3253 belongs to Pericom's low-power analog bus switch product line, engineered specifically for dynamic I/O resource sharing in power-constrained portable electronics with strict signal integrity requirements.

FAQ

What is the maximum operating temperature for PI5C3253WE?

The PI5C3253WE is rated for ambient operation from –40°C to +85°C. Its maximum storage temperature is –65°C to +150°C. Thermal derating is not required within this ambient range, and the device maintains specified R_ON and timing performance across the full interval.

Can PI5C3253WE be used with 3.3 V logic signals?

Yes - while designed for 5 V operation, PI5C3253WE accepts input voltages from –0.5 V to +7.0 V, including 3.3 V logic levels. Its VIH threshold is 2.0 V minimum and VIL is 0.8 V maximum, ensuring reliable recognition of 3.3 V HIGH/LOW states without level translation.

Does PI5C3253WE support bidirectional signal flow?

Yes - as an analog bus switch, PI5C3253WE has no intrinsic directionality. Signals pass equally well from IA0→YA or YA→IA0 when the switch is enabled, provided voltage levels remain within the –0.5 V to +7.0 V absolute maximum ratings on all pins.

Is there a lead-free and RoHS-compliant version of PI5C3253WE?

Yes - the "E" suffix in PI5C3253WE denotes Pb-free and Green (RoHS-compliant) construction. The device meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) and is qualified per JESD22-A110 thermal cycling and JESD22-A108 temperature/humidity bias testing.