GS8640Z18GT-200 GSI TECHNOLOGY, GS8640Z18GT-200 Datasheet - Page 9

• 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 (n)
Clock (CK)
Command
Intermediate
ƒ
Current State and Next State Definition for
Transition
Input Command Code
Intermediate State (N+1)
High Z
(Data In)
B W
Current State
n
D
R
Transition
Pipeline Mode Data I/O State Diagram
ƒ
Intermediate
Next State (n+2)
9/24
n+1
B
Intermediate
Intermediate
Intermediate
D
W
State
High Z
ƒ
R
Pipeline Mode Data I/O State Diagram
Intermediate
Notes:
1. The Hold command (CKE Low) is not
2. W, R, B, and D represent input command
codes as indicated in the Truth Tables.
shown because it prevents any state change.
n+2
Next State
W
ƒ
GS8640Z18/36T-300/250/200/167
D
Data Out
(Q Valid)
R
n+3
B
Intermediate
ƒ
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