The electrical and mechanical specifications of Kingston 4GB DDR3 Desktop RAM are as follows:

Features:

JEDEC standard 1.5V ± 0.075V Power Supply
VDDQ = 1.5V ± 0.075V
667MHz fCK for 1333Mb/sec/pin
8 independent internal bank
Programmable CAS Latency: 5,6,7,8,9,10
Posted CAS
Programmable Additive Latency: 0, CL - 2, or CL - 1 clock
Programmable CAS Write Latency(CWL) = 9(DDR3-1333)
8-bit pre-fetch
Burst Length: 8 (Interleave without any limit, sequential with starting address “000” only), 4 with tCCD = 4
which does not allow seamless read or write [either on the fly using A12 or MRS]
Bi-directional Differential Data Strobe
Internal(self) calibration : Internal self calibration through ZQ pin (RZQ : 240 ohm ± 1%)
On Die Termination using ODT pin
Average Refresh Period 7.8us at lower then TCASE 85°C, 3.9us at 85°C < TCASE . 95°C
Asynchronous Reset
1066Mbps CL7 doesn’t have backward compatibility with 800Mbps CL5

Performance of Kingston 4Gb RAM:

CL(IDD) 9 cycles
Row Cycle Time (tRCmin) 49.5ns (min.)
Refresh to Active/Refresh Command Time (tRFCmin) 90ns
Row Active Time (tRASmin) 36ns (min.)
Power TBD W (operating)
UL Rating 94 V - 0
Operating Temperature 0o C to 85o C
Storage Temperature -55o C to +100o C

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