The DM54 74121 is a monostable multivibrator featuring both positive and negative edge triggering with complementary outputs An internal 2kX timing resistor is provided for design convenience minimizing component count and layout problems This device can be used with a single external capacitor Inpu
Features
Y Triggered from active-high transition or active-low transition.
DM54132/DM74132 Quad 2-Input NAND Gates with Schmitt Trigger Inputs
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54121 DM54121 DM74121 One-Shot with Clear and Complementary Outputs
June 1989
54121 DM54121 DM74121 One-Shot with Clear and Complementary Outputs
General Description
The DM54 74121 is a monostable multivibrator featuring both positive and negative edge triggering with complementary outputs An internal 2kX 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 an active-high transition Schmitt-trigger 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
To obtain optimum a
DM74121 Datasheet
