W9864G6JH-6 Winbond Electronics, W9864G6JH-6 Datasheet - Page 17

• Manufacturer Part Number: W9864G6JH-6
• Description: IC SDRAM 64MB 166MHZ 54TSOPII
• Manufacturer: Winbond Electronics

Specifications of W9864G6JH-6

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 64M (4M x 16)
• Speed: 166MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.3 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 54-TSOP II
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8. These parameters account for the number of clock cycles and depend on the operating frequency
9. Assumed input rise and fall time (t
10. If clock rising time (t
CKE to clock disable (CKE Latency)
DQM to output to HI-Z (Read DQM Latency)
DQM to output to HI-Z (Write DQM Latency)
Write command to input data (Write Data Latency)
Precharge to DQ Hi-Z Lead time
Precharge to Last Valid data out
Bust Stop Command to DQ Hi-Z Lead time
Bust Stop Command to Last Valid Data out
Read with Auto-precharge Command to Active/Ref Command
Write with Auto-precharge Command to Active/Ref Command
CS to Command input ( CS Latency)
of the clock, as follows the number of clock cycles = specified value of timing/ clock period (count
fractions as whole number)
(1)
If tr & tf is longer than 1nS, transient time compensation should be considered,
i.e., [(tr + tf)/2-1]nS should be added to the parameter
( The
(2)A.C Latency Characteristics
t
t
CH
CL
t
is the pulse width of CLK measured from the positive edge to the negative edge referenced to V
T maximum can’t be more than 10nS for low frequency application. )
is the pulse width of CLK measured from the negative edge to the positive edge referenced to V
T
) is longer than 1nS, (t
T
) = 1nS.
T
/2-0.5)nS should be added to the parameter.
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CL = 2
CL = 2
CL = 3
CL = 2
CL = 3
CL = 2
CL = 3
CL = 3
CL = 2
CL = 3
CL = 2
CL = 3
Publication Release Date: Aug. 31, 2010
BL + t
BL + t
(BL+1) + t
(BL+1) + t
RP
RP
W9864G6JH
1
2
0
0
0
2
3
1
2
2
3
1
2
RP
RP
IH
IL
(min.).
(max.).
Revision A02
t
CK
t
CK
+ nS