hm5216805 Renesas Electronics Corporation., hm5216805 Datasheet - Page 15

• Manufacturer Part Number: hm5216805
• Description: 16 M Lvttl Interface Sdram 100 Mhz/83 Mhz 1-mword 8-bit 2-bank/2-mword 4-bit 2-bank - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

Current state
Read
Read with auto-
precharge
Write
CS
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
RAS CAS WE
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
Address
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
MODE
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
MODE
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
MODE
HM5216805 Series, HM5216405 Series
Command
DESL
NOP
BST
READ/READ A
WRIT/WRIT A
ACTV
PRE, PALL
REF, SELF
MRS
DESL
NOP
BST
READ/READ A
WRIT/WRIT A
ACTV
PRE, PALL
REF, SELF
MRS
DESL
NOP
BST
READ/READ A
WRIT/WRIT A
ACTV
PRE, PALL
REF, SELF
MRS
Operation
Continue burst to end
Continue burst to end
Burst stop on full page
Continue burst read to CAS
latency and New read
Term burst read/start write
Other bank active
ILLEGAL on same bank*
Term burst read and Precharge
ILLEGAL
ILLEGAL
Continue burst to end and
precharge
Continue burst to end and
precharge
ILLEGAL
ILLEGAL
ILLEGAL
Other bank active
ILLEGAL on same bank
ILLEGAL
ILLEGAL
ILLEGAL
Continue burst to end
Continue burst to end
Burst stop on full page
Term burst and New read
Term burst and New write
Other bank active
ILLEGAL on same bank*
Term burst write and
Precharge*
ILLEGAL
ILLEGAL
2
*3
3
3
15