MSM54V25632A 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM54V25632A

131,072-Word x 32-Bit x 2-Bank Synchronous Graphics RAM

Oki Electric Industry 

¡ Semiconductor

MSM54V25632A

Function Truth Table (2/5)

Current State CS RAS CAS WE DSF Address

Read

(RD)

H¥¥¥¥

¥

LHHH¥

¥

LHHLH

¥

LHHL L

¥

LHLHH

¥

L H L H L BA, CA, A8

L H L L H BA, CA, A8

L H L L L BA, CA, A8

L L H H H BA, RA

L L H H L BA, RA

LLHLH

¥

L L H L L BA, A8

L L LHH

¥

LLLHL

¥

L L L L H Op-Code

L L L L L Op-Code

Write/Block Write H ¥ ¥ ¥ ¥

¥

(WT/BW)

LHHH¥

¥

LHHLH

¥

LHHL L

¥

LHLHH

¥

L H L H L BA, CA, A8

L H L L H BA, CA, A8

L H L L L BA, CA, A8

L L H H H BA, RA

L L H H L BA, RA

LLHLH

¥

L L H L L BA, A8

L L LHH

¥

LLLHL

¥

L L L L H Op-Code

L L L L L Op-Code

Action

NOP (Continue Row Active after Burst ends)

NOP (Continue Row Active after Burst ends)

ILLEGAL

1, 2, 4, 8 Burst Length; ILLEGAL

Full Page Burst; Burst Stop Æ Bank Active

ILLEGAL

Term Burst, new Read

Term Burst, start Block Write

Term Burst, start Write

ILLEGAL

ILLEGAL

ILLEGAL

Term Burst, execute Row Precharge

ILLEGAL

ILLEGAL

ILLEGAL

ILLEGAL

NOP (Continue Row Active after Burst ends)

NOP (Continue Row Active after Burst ends)

ILLEGAL

1, 2, 4, 8 Burst Length; ILLEGAL

Full Page Burst; Burst Stop Æ Row Active

ILLEGAL

Term Burst, start Read

Term Burst, new Block Write

Term Burst, new Write

ILLEGAL

ILLEGAL

ILLEGAL

Term Burst, execute Row Precharge

ILLEGAL

ILLEGAL

ILLEGAL

ILLEGAL

Note 1

Note

2

2

2

2

11/66

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