MiTAC 7521 PLUS/N service manual 7521Plus / N N/B MAINTENANCE, Memory System

7521Plus / N N/B MAINTENANCE

1.2.11 Memory System

HYUNDAI SDRAM cell on board13

One chip memory size : 4Banksx1Mx16bit SDRAM. Standard 54-pin TSOP-II package.

Power supply : 3 ±0.3V

Supports One JEDEC 144-pin SO-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

7521 plus Supports 64 MB SDRAM on board and one 144-pin DIMM socket for upgrading up to 320 MB of DRAM. Here are some main memory system essential characteristics :

One chip 4Banksx1Mx16bit on board 64 MB 144-pin SO-DIMM socket 1

Memory Voltage 3.3V ± 10%

Banks on DIMM Mixed type DRAM Only supports SDRAM

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