M74HC123B1R The STMicroelectronics M74HC123B1R is a dual retriggerable monostable multivibrator in a 16-DIP package. It operates from 2V to 6V and features a propagation delay of 22 ns.
Mfr Part #:

M74HC123B1R

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics M74HC123B1R is a dual retriggerable monostable multivibrator in a 16-DIP package. It operates from 2V to 6V and features a propagation delay of 22 ns.
✓ Total Stock: 382 pcs
$ Price Range: $0.50

M74HC123B1R Available from 2 distributors

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✓ Non-Authorised
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374 pcs
374 pcs On Request 1 On Request On Request N/A On Request On Request
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8 pcs
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M74HC123B1R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Independent Circuits
Logic Type
Mounting Type
Operating Temperature
Operating Voltage
Output Current
Propagation Delay
Schmitt Trigger Input
Supplier Device Package
Voltage

M74HC123B1R Description

Short technical summary and product information.

The M74HC123B1R from STMicroelectronics is a high-speed CMOS monostable multivibrator. It features two trigger inputs, A (negative edge) and B (positive edge), and a clear input for resetting the monostable state. The output pulse width is determined by external resistor (Rx) and capacitor (Cx) values, with a formula provided for calculation.

 

Key electrical specifications include a wide operating voltage range of 2V to 6V, a typical propagation delay of 23 ns at 6V, and low power dissipation in both standby (4μA max) and active states (200μA max at 5V). It offers high noise immunity with VNIL/VNIH at 28% VCC minimum and symmetrical output impedance with |IOH| = IOL = 4mA minimum.

 

This device is packaged in a 16-DIP (Dual In-line Package) with through-hole mounting. It is pin and function compatible with the 74 Series 123. All inputs are protected against static discharge and transient overvoltage. The operating temperature range is -55°C to 125°C.

M74HC123B1R Quick Information

Product Type: Monostable Multivibrator
Series: 74HC
Canonical Name: M74HC123B1R Dual Retriggerable Monostable Multivibrator
Subcategory: Multivibrators

M74HC123B1R Compliance

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

M74HC123B1R Estimated Pricing

Qty Low High
1+ $0.50 $0.50

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

M74HC123B1R Features

  • High speed CMOS monostable multivibrator
  • Wide operating voltage range 2V to 6V
  • Low power dissipation in standby and active states
  • High noise immunity, 28% VCC minimum
  • 16-DIP package with through-hole mounting

M74HC123B1R Applications

  • Used for generating precise time delays
  • Suitable for pulse generation circuits
  • Applications requiring retriggerable timing
  • Digital circuit timing control

M74HC123B1R FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the M74HC123B1R?

The operating voltage range is 2V to 6V.

What is the operating temperature range?

The operating temperature range is -55°C to 125°C.

What package does the M74HC123B1R come in?

It comes in a 16-DIP (0.300", 7.62mm) through-hole package.

What is the propagation delay of this multivibrator?

The typical propagation delay is 22 ns.

What logic type is the M74HC123B1R?

It is a monostable multivibrator.

How many independent circuits does the M74HC123B1R contain?

It contains 2 independent circuits.

What is the output current capability?

The output current is 4 mA minimum for both sink and source.

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