EDS1232AATA-75MI View Datasheet(PDF) - Elpida Memory, Inc

Part Name

Description

View to exact match

EDS1232AATA-75MI

128M bits SDRAM WTR (Wide Temperature Range)

Elpida Memory, Inc 

EDS1232AATA-MI

Function Truth Table*1

Current state

/CS /RAS /CAS /WE Address

Command

Operation

Notes

Idle

H× × × ×

DESL

Nop or power down

2

L HH×

L HL H

EOL Rowactive

L HL L

L L HH

L L HL

LLLH

LLLL

H× × ×

L HH×

L HL H

L HL L

L L HH

L L HL

LLLH

LLLL

Read

H× × ×

L HHH

L HHL

L HL H

L HL L

L L HH

L L HL

LLLH

LLLL

Write

H× × ×

L HHH

L HHL

L HL H

L HL L

L L HH

L L HL

LLLH

LLLL

×

NOP or BST Nop or power down

2

BA, CA, A10 READ/READA ILLEGAL

3

BA, CA, A10 WRIT/ WRITA ILLEGAL

3

BA, RA

ACT

Row activating

BA, A10

PRE/PALL

Nop

×

REF/SELF

CBR (auto) refresh or self refresh

4

OPCODE

MRS

Mode register accessing

×

DESL

Nop

×

NOP or BST Nop

BA, CA, A10 READ/READA Begin read: Determine AP

5

BA, CA, A10 WRIT/ WRITA Begin write: Determine AP

5

BA, RA

ACT

ILLEGAL

3

BA, A10

PRE/PALL

Precharge

6

×

REF/SELF

ILLEGAL

OPCODE

×

×

×

BA, CA, A10

PBA, CA, A10

BA, RA

BA, A10

×

rOPCODE

×

o ×

×

BA, CA, A10

d BA, CA, A10

BA, RA

BA, A10

u ×

ct OPCODE

MRS

DESL

NOP

BST

READ/READA

WRIT/WRITA

ACT

PRE/PALL

REF/SELF

MRS

DESL

NOP

BST

READ/READA

WRIT/WRITA

ACT

PRE/PALL

REF/SELF

MRS

ILLEGAL

Continue burst to end → Row active

Continue burst to end → Row active

Burst stop → Row active

Terminate burst, new read: Determine AP 7

Terminate burst, begin write: Determine AP 7, 8

ILLEGAL

3

Terminate burst, Precharging

ILLEGAL

ILLEGAL

Continue burst to end → Write recovering

Continue burst to end → Write recovering

Burst stop → Row active

Terminate burst, start read : Determine AP 7, 8

Terminate burst, new write : Determine AP 7

ILLEGAL

3

Terminate burst, Precharging

9

ILLEGAL

ILLEGAL

Data Sheet E0340E30 (Ver. 3.0)

17

Share Link: