IS42S16160B-7BL INTEGRATED SILICON SOLUTION (ISSI), IS42S16160B-7BL Datasheet - Page 44

• Manufacturer Part Number: IS42S16160B-7BL
• Description: IC, SDRAM, 256MBIT, 143MHZ, TSOP-54
• Manufacturer: INTEGRATED SILICON SOLUTION (ISSI)

Specifications of IS42S16160B-7BL

• Memory Type: DRAM - Sychronous
• Memory Configuration: 8M X 4
• Access Time: 7ns
• Page Size: 256Mbit
• Ic Interface Type: Parallel
• Memory Case Style: TSOP
• No. Of Pins: 54
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

IS42S83200B,
ALTERNATING BANK WRITE ACCESSES
Notes:
1) Burst Length = 4
2) x16: A9, A11, and A12 = "Don't Care"
44
A0-A9, A11, A12
x8: A11 and A12 = "Don't Care"
DQM/DQML
COMMAND
BA0, BA1
DQMH
CKE
CLK
A10
DQ
t
t
CKS
CMS
t
t
t
BANK 0
AS
AS
AS
ACTIVE
ROW
ROW
T0
t
CKH
t
t
t
t
CMH
AH
AH
AH
t
t
t
t
RCD
RRD
RAS
RC
IS42S16160B
t
CK
- BANK 0
- BANK 0
- BANK 0
ENABLE AUTO PRECHARGE
T1
NOP
t
t
CMS
CL
t
COLUMN m
BANK 0
DS
WRITE
D
T2
IN
t
t
CMH
t
DH
m
CH
(2)
t
DS
D
T3
NOP
IN
t
m+
DH
1
t
BANK 1
DS
ACTIVE
ROW
ROW
D
T4
IN
t
m+
DH
2
t
RCD
t
DS
D
- BANK 1
ENABLE AUTO PRECHARGE
Integrated Silicon Solution, Inc. — www.issi.com
T5
IN
NOP
m+
t
DH
t
DPL
3
- BANK 0
t
COLUMN b
DS
BANK 1
WRITE
D
T6
IN
t
DH
b
(2)
t
DS
D
t
RP
T7
NOP
IN
t
- BANK 0
b+
DH
1
t
DS
D
T8
NOP
IN
t
b+
DH
2
t
DS
ACTIVE
DON'T CARE
BANK 0
D
T9
ROW
ROW
IN
t
b+
t
t
DH
RCD
DPL
3
- BANK 0
- BANK 1
07/28/08
Rev. D