64M F HY57V64420HFT (Cheong-ju) - 128M 3rd HY57V28420AT (Ichon) G HY57V64420HGT (Cheong-ju) C HY57V28420HCT (Cheong-ju) - 256M 1st HY57V56420T (Ichon) 2nd HY57V56420AT (Ichon) D HY57V56420HDT (Cheong-ju)
