GS816218BD-150I GSI TECHNOLOGY, GS816218BD-150I Datasheet - Page 12

• Manufacturer Part Number: GS816218BD-150I
• Manufacturer: GSI TECHNOLOGY

Specifications of GS816218BD-150I

• Density: 18Mb
• Access Time (max): 7.5ns
• Sync/async: Synchronous
• Architecture: SDR
• Clock Freq (max): 133.3MHz
• Operating Supply Voltage (typ): 2.5/3.3V
• Address Bus: 20b
• Package Type: FBGA
• Operating Temp Range: -40C to 85C
• Number Of Ports: 2
• Supply Current: 185mA
• Operating Supply Voltage (min): 2.3/3V
• Operating Supply Voltage (max): 2.7/3.6V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 165
• Word Size: 18b
• Number Of Words: 1M
• Lead Free Status / RoHS Status: Not Compliant

Notes:
1.
2.
3.
Rev: 1.07 9/2008
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
The diagram shows supported (tested) synchronous state transitions plus supported transitions that depend upon the use of G.
Use of “Dummy Reads” (Read Cycles with G High) may be used to make the transition from read cycles to write cycles without passing
through a Deselect cycle. Dummy Read cycles increment the address counter just like normal read cycles.
Transitions shown in grey tone assume G has been pulsed high long enough to turn the RAM’s drivers off and for incoming data to meet
Data Input Set Up Time.
X
X
CW
First Write
Burst Write
Simplified State Diagram with G
W
W
CW
12/37
W
CR
R
CR
R
Deselect
X
CW
W
CW
W
R
CR
First Read
Burst Read
R
R
CR
X
X
GS816218/36B(B/D)
© 2004, GSI Technology