74LS12
Dual Retriggerable Monostable Multivibrators (Hitachi Semiconductor)
74LS12
Dual Retriggerable One-Shot (Fairchild Semiconductor)
74LS12
LOW POWER SCHOTTKY (ON Semiconductor)
74LS12
RETRIGGERABLE MONOSTABLE MULTIVIBRATORS (Motorola)
74LS12
Dual Retriggerable One-Shot (Fairchild Semiconductor)
74LS121
monostable multivibrator featuring both positive and negative edge triggering (National)
74LS121
Dual Retriggerable Monostable Multivibrators (Hitachi Semiconductor)
74LS122
Retriggerable Monostable Multivibrators (Texas Instruments)