7400 TTL Series Logic
- Texas Instruments SN74121N, This ST Texas Instruments 74121N monostable multivibrator IC is available in a DIL-14 package. A part of the 74 logic family. Schmidt trigger inputs allow input transition rates as slow as 1V/s without jitter. Texas Instruments SN74121N Monostable Multivibrator with Schmitt Trigger Inputs