the product of netsol is same with samsung, and can pin to pin with ISSI,the netsol is support by samsung ,and they famours by the SRAM product ,today ,l want to introduce the fast SRAM to you .

Part Number	Density	Organization	VDD(V) Voltage	Speed-tAA (ns)	Package	Availability
S6R4016V1M	4M bit	256Kx16	3.3	10	44TSOP2	available now
S6R4016C1M		256Kx16	5	10	44TSOP2	available now
S6R4008V1M		512Kx8	3.3	10	44TSOP2	available now
S6R4008C1M		512Kx8	5	10	44TSOP2	available now
S6R4016V1A	4M bit	256Kx16	2.5~3.3	8/10	44TSOP2	available now
S6R4016C1A		256Kx16	5	10	44TSOP2	available now
S6R4008V1A		512Kx8	2.5~3.3	8/10	44TSOP2	available now
S6R4008C1A		512Kx8	5	10	44TSOP2	available now