HM5257405BTD-75 Ver la hoja de datos (PDF) - Elpida Memory, Inc

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Lista de partido

HM5257405BTD-75

512M LVTTL interface SDRAM 133 MHz/100 MHz 8-Mword × 16-bit × 4-bank/16-Mword × 8-bit × 4-bank /32-Mword × 4-bit × 4-bank PC/133, PC/100 SDRAM

Elpida Memory, Inc 

HM5257165B/HM5257805B/HM5257405B-75/A6

Block Diagram (HM5257405B)

Column address

counter

A0 to A12, BA0, BA1

Upper pellet

A0 to A9, A11, A12

Column address

buffer

A0 to A12, BA0, BA1

Row address

buffer

Refresh

counter

Row decoder

Memory array

Bank0

8192 row

× 4096 column

× 2 bit

Row decoder

Memory array

Bank1

8192 row

× 4096 column

× 2 bit

Row decoder

Memory array

Bank2

8192 row

× 4096 column

× 2 bit

Row decoder

Memory array

Bank3

8192 row

× 4096 column

× 2 bit

Input buffer Output buffer

DQ2 to DQ3

DQ0 to DQ1

Input buffer Output buffer

CLK

CKE

CS

RAS

CAS

WE

DQM

Memory array

Bank0

8192 row

× 4096 column

× 2 bit

Row decoder

Column address

counter

Memory array

Bank1

8192 row

× 4096 column

× 2 bit

Row decoder

Memory array

Bank2

8192 row

× 4096 column

× 2 bit

Row decoder

Memory array

Bank3

8192 row

× 4096 column

× 2 bit

Row decoder

Column address

buffer

Row address

buffer

Refresh

counter

Lower pellet

Data Sheet E0081H10

8

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