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DM74121N - Monostable multivibrator

Download the DM74121N datasheet PDF. This datasheet also covers the DM74121 variant, as both devices belong to the same monostable multivibrator family and are provided as variant models within a single manufacturer datasheet.

General Description

The DM74121 is a monostable multivibrator featuring both positive and negative edge triggering with complementary outputs.

An internal 2kΩ timing resistor is provided for design convenience minimizing component count and layout problems.

this device can be used with a single external capacitor.

Key Features

  • s Triggered from active-HIGH transition or active-LOW transition inputs s Variable pulse width from 30 ns to 28 seconds s Jitter free Schmitt-trigger input s Excellent noise immunity typically 1.2V s Stable pulse width up to 90% duty cycle s TTL, DTL compatible s Compensated for VCC and temperature variations s Input clamp diodes Ordering Code: Order Number Package Number Package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (DM74121_FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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DM74125 Quad TRI-STATE Buffers National Semiconductor
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Other Datasheets by Fairchild (now onsemi)

Part Number Description
DM74121 Monostable multivibrator
DM74123 Dual retriggerable monostable multivibrator
DM7414 Hex Inverter with Schmitt Trigger Input
DM74145 BCD to Decimal Decoders/Drivers
DM74150 Data Selectors/Multiplexers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DM74121 One-Shot with Clear and Complementary Outputs June 1989 Revised November 1999 DM74121 One-Shot with Clear and Complementary Outputs General Description The DM74121 is a monostable multivibrator featuring both positive and negative edge triggering with complementary outputs. An internal 2kΩ timing resistor is provided for design convenience minimizing component count and layout problems. this device can be used with a single external capacitor. Inputs (A) are active-LOW trigger transition inputs and input (B) is and active-HIGH transition Schmitttrigger input that allows jitter-free triggering from inputs with transition rates as slow as 1 volt/second. A high immunity to VCC noise of typically 1.5V is also provided by internal circuitry at the input stage.