IS42S16800D-7TL INTEGRATED SILICON SOLUTION (ISSI), IS42S16800D-7TL Datasheet - Page 36

• Manufacturer Part Number: IS42S16800D-7TL
• Description: IC, SDRAM, 128MBIT, 143MHZ, TSOP-54
• Manufacturer: INTEGRATED SILICON SOLUTION (ISSI)

Specifications of IS42S16800D-7TL

• Memory Type: DRAM - Sychronous
• Memory Configuration: 16M X 8
• Access Time: 7ns
• Page Size: 128Mbit
• Ic Interface Type: Parallel
• Memory Case Style: TSOP
• No. Of Pins: 54
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

IS42S81600D,
READ - DQM OPERATION
36
Notes:
1) CAS latency = 2, Burst Length = 4
2) X16: A9 and A11 = "Don't Care"
DQML, DQMH
X8: A11 = "Don't Care"
COMMAND
A0-A9, A11
BA0, BA1
DQM/
CKE
CLK
A10
DQ
t
t
CKS
CMS
t
t
t
ACTIVE
AS
AS
AS
BANK
ROW
ROW
T0
t
t
CKH
t
t
t
CMH
AH
AH
AH
IS42S16800D
t
CK
t
NOP
RCD
T1
DISABLE AUTO PRECHARGE
ENABLE AUTO PRECHARGE
t
t
CMS
CL
COLUMN m
READ
BANK
T2
t
CMH
t
CH
(2)
CAS Latency
NOP
T3
t
LZ
t
AC
NOP
T4
D
OUT
t
OH
t
HZ
m
Integrated Silicon Solution, Inc. — www.issi.com
NOP
T5
t
LZ
t
AC
NOP
D
T6
OUT
t
OH
m+
t
AC
2
DON'T CARE
UNDEFINED
NOP
T7
D
OUT
t
OH
m+
t
HZ
3
NOP
T8
07/28/08
Rev. E