is42s16160a1-7t Integrated Silicon Solution, Inc., is42s16160a1-7t Datasheet - Page 23

• Manufacturer Part Number: is42s16160a1-7t
• Description: 256 Mb Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

IS42S83200A1
IS42S16160A1
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. B
10/28/05
[Write with Auto-Precharge Interrupted by Write or Read to another Bank]
Burst write with auto-precharge can be interrupted by write or read to another bank. Next ACT command
can be issued after(BL+tWR-1+ tRP) from the WRITEA. Auto-precharge interruption by a command to the
same bank is inhibited.
A0-9,11-12
A0-9,11-12
Command
Command
BA0-1
BA0-1
CLK
A10
CLK
A10
DQ
DQ
auto-precharge
auto-precharge
(4-bank x 8,388,608 - word x 8-bit)
(4-bank x 4,194,304 - word x 16-bit)
WRITEA interrupted by WRITE to another bank (BL=4)
WRITEA interrupted by READ to another bank (CL=2, BL=4)
Write
Write
Da0
Da0
Ya
00
Ya
00
1
1
Da1
Da1
interrupted
interrupted
Write
Db0
Read
BL
10
BL
Yb
10
Yb
0
0
Db1
tWR
Qb0
tWR
Db2
Qb1
Db3
Qb2
tRP
tRP
activate
activate
Qb3
ACT
ACT
Xa
Xa
00
Xa
Xa
00
ISSI
23
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