MiTAC 7521 N - Memory System; Main Memory

19
7521
7521
N/B MAINTENANCE
N/B MAINTENANCE
 Battery charging control
 Smart Battery monitoring
 Control D/D system on/off
 Fan control and LED indicator serial interface
 100pin TQFP
1.2.9 Memory System
1.2.9.1 Main Memory
 HYUNDAI : GM72V281641AT-7K SDRAM
 NEC : UPD45128163G5-A80-9JF SDRAM
- one chip memory size: 4Banksx1Mx16bit SDRAM.
- Standard 54 pin TSOP-II package.
- Power supply: 3 $0.3V
 Supports One JEDEC 144-pin S.O. DIMM sockets on Mother Board for expansion
 Supports 3.3V SDRAM
 2 banks on one socket.
 SDRAM accesses time from clock: 6ns
 Memory bus bandwidth: 64 bits