IS42S16400F-6TL-TR ISSI, Integrated Silicon Solution Inc, IS42S16400F-6TL-TR Datasheet - Page 35

• Manufacturer Part Number: IS42S16400F-6TL-TR
• Description: IC SDRAM 64MBIT 166MHZ 54TSOP
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS42S16400F-6TL-TR

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 64M (4M x 16)
• Speed: 166MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 54-TSOP II
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

IS42S16400F
IC42S16400F
INITIALIzE AND LOAD MODE REGISTER
Integrated Silicon Solution, Inc. — www.issi.com
Rev. A
03/19/08
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)
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
Tp+2
t
NOP
MRD
DON'T CARE
ACTIVE
BANK
ROW
ROW
Tp+3
(2, 3, 4)
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