Double-data-rate architecture; two data
transfers per clock cycle
Bidirectional data strobe(DQS)
Four banks operation
Differential clock inputs(CK and /CK)
DLL aligns DQ and DQS transition with CK transition
MRS cycle with address key programs - Read latency 2, 2.5
(clock) - Burst length (2, 4, 8) - Burst type (sequential
& interleave)
All inputs except data & DM are sampled at the positive
going edge of the system clock(CK)
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Data
I/O transactions on both edges of data strobe
Edge aligned data output, center aligned data input
DM for write masking only (x4, x8)
Auto & Self refresh
7.8us refresh interval(8K/64ms refresh)
Maximum burst refresh cycle : 8
66pin TSOP II package
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