HT6220A__NSOP16 HT6220A__SOP20 HT6220A__SOP8 HT6220A_24SOP HT6220A_NSOP16 HT6220A_SOP20 HT6220A_SOP8 HT6221 HT6221 (CD6221/GO) HT6221(7.2MM-SOP20