SN74LS221D
Manufacturers：
Texas Instruments
Description：
IC DUAL MONO MULTIVIB 16-SOIC
SN74LS221DBR
Manufacturers：
Texas Instruments
Description：
IC MONO MULTIVIBRATR DUAL 16SSOP
SN74LS221DG4
Manufacturers：
Texas Instruments
Description：
IC MONOSTABLE DUAL 16SOIC
SN74LS221DR
Manufacturers：
Texas Instruments
Description：
IC DUAL MONO MULTIVIBRATR 16SOIC
SN74LS221DRE4
Manufacturers：
Texas Instruments
Description：
IC DUAL MONO MULTIVIBRATR 16SOIC