IS42S16400-7T 데이터 시트보기 (PDF) - Integrated Circuit Solution Inc

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IS42S16400-7T

2(1)M Words x 8(16) Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM

Integrated Circuit Solution Inc 

IS42S8800/IS42S8800L

IS42S16400/IS42S16400L

OPERATION COMMAND TABLE(continue)

Current State Command

Operation

CS RAS CAS WE Address

Write

DESL

Nop -> Enter precharge after tDPL

H X X XX

recovering

NOP

Nop -> Enter precharge after tDPL

L H H HX

with auto

BST

Nop -> Enter precharge after tDPL

L H H LX

precharge

READ/READA

Illegal(3 ,8, 11)

L H L H BA, CA, A10

WRIT/WRITA

Illegal(3,11)

L H L L BA, CA, A10

ACT

Illegal(3, 11)

L L H H BR, RA

PRE/PALL

Illegal(3, 11)

L L H L BA, A10

REF/SELF

Illegal

L L L HX

MRS

Illegal

L L L L Op-Code

Auto

DESL

Nop Enter idle after tRC

H X X XX

Refreshing NOP/BST

Nop Enter idle after tRC

L H H XX

READ/WRIT

Illegal

L H L XX

ACT/PRE/PALL

Illegal

L L H XX

REF/SELF/MRS

Illegal

L L L XX

Mode

DESL

Nop -> Enter idle after 2 Clocks

H X X XX

register

NOP

Nop -> Enter idle after 2 Clocks

L H H HX

setting

BST

Illegal

L H H LX

READ/WRIT

Illegal

L H L XX

ACT/PRE/PALL/

Illegal

L L X XX

REF/SELF/MRS

Notes:

1. All entries assume that CKE was active (High level) during the preceding clock cycle.

2. If both banks are idle, and CKE is inactive (Low level), the device will enter Power downmode. All input buffers except CKE

will be disabled.

3. Illegal to bank in specified states; Function may be legal in the bank indicated by BankAddress(BA), depending on the

state of that bank.

4. If both banks are idle, and CKE is inactive (Low level), the device will enter Self refresh mode. All input buffers except CKE

will be disabled.

5. Illegal if tRCD is not satisfied.

6. Illegal if tRAS is not satisfied.

7. Must satisfy burst interrupt condition.

8. Must satisfy bus contention, bus turn around, and/or write recovery requirements.

9. Must mask preceding data which don’t satisfy tDPL .

10. Illegal if tRRD is not satisfied.

11. Illegal for single bank, but legal for other banks in multi-bank devices.

Integrated Circuit Solution Inc.

13

DR007-0A

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