5Pcs AS4C32M16SB-7TIN AS4C32M16SB AS4C32M16SB-7 TSOP-54 ChipsetPacking List 5 Pcs Memory Type Volatile Memory Format DRAM Technology SDRAM Memory Size 512Mbit Memory Organization 32M x 16 Memory Interface Parallel Clock Frequency 143 MHz Write Cycle Time Word, Page 14ns Access Time 5. 4 ns Voltage Supply 3V ~ 3. 6V Operating Temperature 40C ~ 85C (TA) Mounting Type Surface Mount Package Case 54 TSOP (0. 400", 10. 16mm Width) Supplier Device Package 54 TSOP II