IS42S16400C1-6T ISSI, Integrated Silicon Solution Inc, IS42S16400C1-6T Datasheet - Page 35

• Manufacturer Part Number: IS42S16400C1-6T
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: SDRAMr

Specifications of IS42S16400C1-6T

• Organization: 4Mx16
• Density: 64Mb
• Address Bus: 14b
• Access Time (max): 6/5ns
• Maximum Clock Rate: 166MHz
• Operating Supply Voltage (typ): 3.3V
• Package Type: TSOP-II
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 130mA
• Pin Count: 54
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

IS42S16400C1
INITIALIZE AND LOAD MODE REGISTER
Integrated Silicon Solution, Inc. — www.issi.com —
Rev. E
10/25/05
DQML, DQMH
Notes:
1. If CS is High at clock High time, all commands applied are NOP.
2. The Mode register may be loaded prior to the Auto-Refresh cycles if desired.
3. JEDEC and PC100 specify three clocks.
4. Outputs are guaranteed High-Z after the command is issued.
COMMAND
A0-A9, A11
BA0, BA1
DQM/
CKE
CLK
A10
DQ
Power-up: V
and CLK stable
T = 100µs Min.
t
t
CKS
CMH
NOP
T
T0
t
t
CKH
CMS
t
CK
CC
SINGLE BANK
ALL BANKS
t
CMH
PRECHARGE
ALL BANKS
T1
Precharge
all banks
t
CMS
t
RP
t
CMH
REFRESH
Tn+1
AUTO
AUTO REFRESH
t
CMS
t
CH
At least 2 Auto-Refresh Commands
NOP
t
RC
(1)
1-800-379-4774
t
CL
REFRESH
To+1
AUTO
AUTO REFRESH
NOP
t
RC
t
t
Load MODE
AS
AS
REGISTER
CODE
CODE
Tp+1
Program MODE REGISTER
t
t
AH
AH
t
Tp+2
NOP
MRD
DON'T CARE
ACTIVE
ISSI
BANK
ROW
ROW
Tp+3
(2, 3, 4)
35
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