IS42S83200B-6T-TR ISSI, Integrated Silicon Solution Inc, IS42S83200B-6T-TR Datasheet - Page 21

• Manufacturer Part Number: IS42S83200B-6T-TR
• Description: IC SDRAM 256MBIT 166MHZ 54TSOP
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: SDRAMr

Specifications of IS42S83200B-6T-TR

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 256M (32M x 8)
• Speed: 166MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 54-TSOP II
• Organization: 32Mx8
• Density: 256Mb
• Address Bus: 15b
• Access Time (max): 6.5/5.4ns
• 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: 170mA
• Pin Count: 54
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

IS42S83200B,
INITIALIZE AND LOAD MODE REGISTER
Integrated Silicon Solution, Inc. — www.issi.com
Rev. D
07/28/08
A0-A9, A11, A12
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
BA0, BA1
DQM/
CKE
CLK
A10
DQ
Power-up: V
and CLK stable
T = 200µs Min.
t
t
CMH
CKS
NOP
T
T0
t
t
CKH
CMS
t
CK
IS42S16160B
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 8 Auto-Refresh Commands
NOP
t
RC
(1)
t
CL
REFRESH
To+1
AUTO
AUTO REFRESH
NOP
t
RC
t
t
t
Load MODE
REGISTER
AS
AS
AS
CODE
CODE
CODE
Tp+1
Program MODE REGISTER
t
t
t
AH
AH
AH
Tp+2
t
NOP
MRD
DON'T CARE
ACTIVE
BANK
ROW
ROW
Tp+3
(2, 3, 4)
21