74FST3125DR2 The ON Semiconductor 74FST3125DR2 is a 4-bit bus switch designed for high-performance applications. It operates between 4V and 5.5V and is housed in a 14-SOIC package.
Mfr Part #:

74FST3125DR2

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor 74FST3125DR2 is a 4-bit bus switch designed for high-performance applications. It operates between 4V and 5.5V and is housed in a 14-SOIC package.
✓ Total Stock: 2,052 pcs
$ Price Range: $0.50

74FST3125DR2 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,052 pcs
2052 pcs On Request 1 On Request On Request 142 On Request On Request

74FST3125DR2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Circuit
Independent Circuits
Mounting Type
Operating Temperature
Supplier Device Package
Type
Voltage
Voltage Supply Source

74FST3125DR2 Description

Short technical summary and product information.

The ON Semiconductor 74FST3125DR2 is a quad, high-performance bus switch. This device is CMOS TTL compatible when operating between 4 and 5.5 Volts. It exhibits extremely low RON and adds nearly zero propagation delay, ensuring efficient signal transmission without noise or ground bounce.

 

The device consists of four independent 1-bit switches, each with separate Output/Enable (OE) pins. Port A connects to Port B when OE is low; the switch enters a high-Z state when OE is high. This functionality makes it suitable for various switching and multiplexing tasks.

 

Key features include a maximum delay through the switch of less than 0.25 ns and nearly zero standby current. The control inputs are TTL/CMOS compatible. The 74FST3125DR2 is pin-for-pin compatible with other popular bus switches like QS3125, FST3125, and CBT3125.

 

Packaged in a 14-SOIC surface-mount package, the 74FST3125DR2 operates within an ambient temperature range of -40°C to 85°C. Its applications span data and telecom switching, multiplexing, signal gating, test access, battery disconnect, and power management.

74FST3125DR2 Quick Information

Product Type: Bus Switch
Canonical Name: 74FST3125DR2 4-Bit Bus Switch
Subcategory: Signal Switches, Multiplexers, Decoders

74FST3125DR2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

74FST3125DR2 Estimated Pricing

Qty Low High
1+ $0.50 $0.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

74FST3125DR2 Features

  • High-performance quad bus switch.
  • Operates from 4V to 5.5V.
  • Less than 0.25 ns max delay.
  • Nearly zero standby current.
  • Surface mount 14-SOIC package.

74FST3125DR2 Applications

  • Data and telecom switching.
  • Multiplexing and signal gating.
  • Test access applications.
  • Battery disconnect circuits.
  • Power management functions.

74FST3125DR2 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the 74FST3125DR2?

4V to 5.5V

What package does the 74FST3125DR2 come in?

14-SOIC (0.154", 3.90mm Width)

What is the operating temperature range of the 74FST3125DR2?

-40°C to 85°C

How many independent circuits does the 74FST3125DR2 have?

4

What is the on-resistance of the 74FST3125DR2?

Typically less than 0.25 Ohm

What is the propagation delay through the switch?

Less than 0.25 ns

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