Skip to main content

We use cookies to understand how you use our site and improve your experience. See our Privacy Policy.

PI5C3257QEX

The PI5C3257QEX is an electronic component from Diodes Incorporated. View the full PI5C3257QEX datasheet below including key specifications, electrical characteristics, absolute maximum ratings.

PI5C3257QEX shares its datasheet with PI5C3257, whose page lists every part number it covers.

Official PI5C3257QEX datasheet (PDF) — the source this page was extracted from.

PI5C3257QEX Key Specifications

ParameterValue
Switch on-resistance (RON)5 Ω typ, 7 Ω max (VCC = 4.75 V, VIN = 0.0 V, ION = 48 mA)
Switch on-resistance (RON)10 Ω typ, 15 Ω max (VCC = 4.75 V, VIN = 2.4 V, ION = 15 mA)
Input HIGH voltage (VIH)2 V min
Input LOW voltage (VIL)-0.5 V min, 0.8 V max
Quiescent power supply current (ICC)0.1 μA typ, 3 μA max (VCC = 5.25 V, VIN = GND or VCC)
Short circuit current (IOS)100 mA min (I(Y) = 0 V, Y(I) = VCC)
Propagation delay (tIY)0.25 ns max (CL = 50 pF, RL = 500 Ω)
Bus select time (tSY)0.5 ns min, 5.2 ns max (CL = 50 pF, RL = 500 Ω)
Bus enable time (tPZH, tPZL)0.5 ns min, 4.8 ns max (CL = 50 pF, RL = 500 Ω)

PI5C3257QEX Overview

Part: PI5C3257 — Diodes Incorporated

Type: Quad 2:1 Multiplexer/Demultiplexer Bus Switch

Description: Quad 2:1 multiplexer/demultiplexer bus switch with 5 Ω on-resistance, three-state outputs, and near-zero propagation delay, operating at 5 V ±5%.

Operating Conditions:

  • Supply voltage: 4.75 to 5.25 V (5 V ±5%)
  • Operating ambient temperature: -40 °C to +85 °C

Absolute Maximum Ratings:

  • Max supply voltage: 7.0 V (-0.5 V to +7.0 V)
  • Max continuous current: 120 mA (DC Output Current)
  • Max junction/storage temperature: -65 °C to +150 °C (storage temperature)

Key Specs:

  • Switch on-resistance (RON): 5 Ω typ, 7 Ω max (VCC = 4.75 V, VIN = 0.0 V, ION = 48 mA)
  • Switch on-resistance (RON): 10 Ω typ, 15 Ω max (VCC = 4.75 V, VIN = 2.4 V, ION = 15 mA)
  • Input HIGH voltage (VIH): 2 V min
  • Input LOW voltage (VIL): -0.5 V min, 0.8 V max
  • Quiescent power supply current (ICC): 0.1 μA typ, 3 μA max (VCC = 5.25 V, VIN = GND or VCC)
  • Short circuit current (IOS): 100 mA min (I(Y) = 0 V, Y(I) = VCC)
  • Propagation delay (tIY): 0.25 ns max (CL = 50 pF, RL = 500 Ω)
  • Bus select time (tSY): 0.5 ns min, 5.2 ns max (CL = 50 pF, RL = 500 Ω)
  • Bus enable time (tPZH, tPZL): 0.5 ns min, 4.8 ns max (CL = 50 pF, RL = 500 Ω)

Features:

  • Near-zero propagation delay
  • 5 Ω switches connect inputs to outputs
  • Direct bus connection when switches are ON
  • Ultra-low quiescent power (0.2 μA typical)
  • Pin compatible with 74 series 257 logic devices
  • Lead-free, fully RoHS compliant, halogen and antimony free

Applications:

  • Notebook applications

Package:

  • 16-pin QSOP (150-mil wide)
  • 16-pin TSSOP (173-mil wide)
  • 16-pin UQFN (3 mm × 3 mm)

PI5C3257QEX Features

  • ¼ Near-Zero propagation delay
  • ¼ 5Ω switches connect inputs to outputs
  • ¼ Direct bus connection when switches are ON
  • ¼ Ultra Low Quiescent Power (0.2μA typical) - Ideally suited for notebook applications
  • ¼ Pin compatible with 74 series 257 logic devices
  • ¼ Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • ¼ Halogen and Antimony Free. 'Green' Device (Note 3)
  • ¼ Packaging (Pb-free & Green available):
  • 16-pin, QSOP (Q)
  • 16-pin, TSSOP (L)
  • 16-pin, UQFN (ZHD)

PI5C3257QEX Pin Configuration

PI5C3257QEX Electrical Characteristics

ParametersDescriptionTest Conditions (1)Min.Typ. (2)Max.Units
V IHInput HIGH VoltageGuaranteed Logic HIGH Level2V
V ILInput LOWVoltageGuaranteed Logic LOWLevel-0.50.8V
I IHInput HIGH CurrentV cc = Max. ,V IN =V cc±1μA
I ILInput LOWCurrentV cc = Max.,V IN = GND±1μA
I OZHHigh Impedance Output Current0 ≤ I,Y ≤ V cc±1μA
V IKClamp Diode VoltageV cc = Min., I IN = -18 mA-0.7-1.2V
I OSShort Circuit Current (3)I (Y) = 0V, Y(I)=V cc100mA
V HInput Hysteresis at Control Pins150mV
R ONSwitch On-Resistance (4)V cc = Min., V IN = 0.0V, I ON = 48mA57Ω
R ONSwitch On-Resistance (4)V cc = Min., V IN = 2.4V, I ON = 15 mA1015Ω
  1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.

  2. Typical values are at VCC = 5.0V, T A = 25°C ambient and maximum loading.

  3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.

  4. Measured by the voltage drop between I and Y pin at indicated current through the switch. On-Resistance is determined by the lower of the voltages on the two (I,Y) pins.

PI5C3257QEX Absolute Maximum Ratings

(Above which the useful life may be impaired. For user guidelines, not tested.)

ParameterLimit
Storage Temperature-65°C to +150°C
Ambient Temperature with Power Applied-40°C to +85°C
Supply Voltage to Ground Potential (Inputs &VCC Only)-0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs &D/O Only) . -0.5V to +7.0V
DC Input Voltage-0.5V to +7.0V
DC Output Current120mA
Power Dissipation0.5W

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part NumberManufacturerPackage
PI5C3257Diodes Incorporated—
PI5C3257LEXDiodes Incorporated—
PI5C3257ZHDEXDiodes Incorporated—

More datasheets

All Diodes datasheets (217)

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

Ask your AI agent about the PI5C3257QEX

Connect SheetsData to Claude, Cursor, Codex or any MCP client and your agent reads this datasheet for you: pinout, limits, register maps and design checks, with the numbers taken from the PDF.

claude mcp add --transport http sheetsdata https://mcp.sheetsdata.com/mcp

Then ask: "Can the PI5C3257QEX run from my 12 V rail? Check it against the datasheet limits."

Create a free account $2 of usage every month, no card needed.