【NXP Semiconductors】74HC221DB,单稳态多谐振荡器 DUAL MONOSTABLE MULTIVIBRATOR
【NXP Semiconductors】74HC221DB,112,IC NON-RETRIGGER MULTIVIB 16SSOP
【NXP Semiconductors】74HC221DB,118,IC MULTIVIBRATOR DUAL 16SSOP
【NXP Semiconductors】74HC221DB-T,单稳态多谐振荡器 DUAL MONOSTABLE MULTIVIBRATOR
【NXP Semiconductors】74HC221N,单稳态多谐振荡器 DUAL MONOSTABLE MULTIVIBRATOR
【NXP Semiconductors】74HC221N,652,IC DUAL MULTI-VIBRATOR 16DIP