IS42S16100 데이터 시트보기 (PDF) - Integrated Circuit Solution Inc

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IS42S16100

512K Words x 16 Bits x 2 Banks (16-MBIT) SYNCHRONOUS DYNAMIC RAM

Integrated Circuit Solution Inc 

IS42S16100

CKE RELATED COMMAND TRUTH TABLE(1)

Current State

Operation

CKE

n-1 n CS RAS CAS WE A11 A10 A9-A0

Self-Refresh

Undefined

Self-Refresh Recovery(2)

HXXXXXXXX

L HHX X X X X X

Self-Refresh Recovery(2)

Illegal(2)

Illegal(2)

L H L HHX X X X

LHLHLXXXX

LHL L XXXXX

Self-Refresh

L L XXXXXXX

Self-Refresh Recovery Idle State After tRC Has Elapsed

HHHXXXXXX

Idle State After tRC Has Elapsed

HH L HHX X X X

Illegal

HH L H L XXXX

Illegal

HHL LXXXXX

Power-Down on the Next Cycle

HLHXXXXXX

Power-Down on the Next Cycle

HL LHHXXXX

Illegal

HL LHL XXXX

Illegal

Clock Suspend Termination on the Next Cycle (2)

HL L L XXXXX

LHXXXXXXX

Clock Suspend

L L XXXXXXX

Power-Down

Undefined

HXXXXXXXX

Power-Down Mode Termination, Idle After

That Termination(2)

LHXXXXXXX

Power-Down Mode

L L XXXXXXX

Both Banks Idle

No Operation

HHHXXXXXX

See the Operation Command Table

HH L HX X X X X

Bank Active Or Precharge

HHL LHXXXX

Auto-Refresh

HHL L LHXXX

Mode Register Set

H H L L L L OP CODE

See the Operation Command Table

HLHXXXXXX

See the Operation Command Table

HL LHXXXXX

See the Operation Command Table

Self-Refresh(3)

HL L LHXXXX

HL L L LHXXX

See the Operation Command Table

H L L L L L OP CODE

Power-Down Mode(3)

LXXXXXXXX

Other States

See the Operation Command Table

Clock Suspend on the Next Cycle(4)

HHXXXXXXX

HLXXXXXXX

Clock Suspend Termination on the Next Cycle

LHXXXXXXX

Clock Suspend Termination on the Next Cycle

L L XXXXXXX

Notes:

1. H: HIGH level input, L: LOW level input, X: HIGH or LOW level input

2. The CLK pin and the other input are reactivated asynchronously by the transition of the CKE level from LOW to HIGH. The

minimum setup time (tCKA) required before all commands other than mode termination must be satisfied.

3. Both banks must be set to the inactive (idle) state in advance to switch to power-down mode or self-refresh mode.

4. The input must be command defined in the operation command table.

Integrated Circuit Solution Inc.

17

DR006-0B

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