GS8640Z18GT-200 GSI TECHNOLOGY, GS8640Z18GT-200 Datasheet - Page 8

• Manufacturer Part Number: GS8640Z18GT-200
• Manufacturer: GSI TECHNOLOGY

Specifications of GS8640Z18GT-200

• Density: 72Mb
• 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: 22b
• Package Type: TQFP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 2
• Supply Current: 205mA
• Operating Supply Voltage (min): 2.3/3V
• Operating Supply Voltage (max): 2.7/3.6V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 100
• Word Size: 18b
• Number Of Words: 4M
• Lead Free Status / RoHS Status: Compliant

Rev: 1.03b 2/2009
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Key
Current State and Next State Definition for
Current State (n)
Clock (CK)
Command
ƒ
Transition
Input Command Code
B
R
Pipeline and Flow Through Read Write Control State Diagram
Current State
Burst Read
New Read
Next State (n+1)
R
n
D
B
ƒ
D
W
R
Pipeline and Flow Through Read/Write Control State Diagram
n+1
Next State
W
8/24
D
Deselect
ƒ
B
R
Notes:
1. The Hold command (CKE Low) is not
2. W, R, B and D represent input command
n+2
shown because it prevents any state change.
codes ,as indicated in the Synchronous Truth Table.
R
D
Burst Write
ƒ
New Write
W
D
GS8640Z18/36T-300/250/200/167
B
n+3
W
ƒ
B
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