EDS1232AABB-60 데이터 시트보기 (PDF) - Elpida Memory, Inc

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EDS1232AABB-60

128M bits SDRAM

Elpida Memory, Inc 

EDS1232AABB, EDS1232AATA

Address Bits of Bank-Select and Precharge

Row A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 BA1 BA0

(Activate command)

BA1(A12) BA0(A13) Result

0

0

Select Bank A

“Activate” command

0

1

Select Bank B

“Activate” command

1

0

Select Bank C

“Activate” command

1

1

Select Bank D

“Activate” command

A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 BA1 BA0

(Precharge command)

A10 BA1(A12) BA0(A13) Result

0

0

0 Precharge Bank A

0

0

1 Precharge Bank B

0

1

0 Precharge Bank C

0

1

1 Precharge Bank D

1

x

x Precharge All Banks

x : Don’t care

Col. A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 x BA1 BA0

(/CAS strobes)

0

disables Auto-Precharge

(End of Burst)

1

enables Auto-Precharge

(End of Burst)

BA1(A12) BA0(A13) Result

0

0

enables Read/Write

commands for Bank A

0

1

enables Read/Write

commands for Bank B

1

0

enables Read/Write

commands for Bank C

1

1

enables Read/Write

commands for Bank D

Preliminary Data Sheet E0205E50 (Ver. 5.0)

26

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