Clock suspension write waveforms
CLK external
CLK internal
CKE
DQM
DQ
D1
D2
D3
®
D5
DQM Mask
CKE Mask
AS4LC8M8S0
AS4LC4M16S0
(BL = 8)
D6
CLK external
CLK internal
CKE
DQM
DQ
D1
D2
D3
D5
D6
DQM Mask CKE Mask
CLK external
CLK internal
CKE
DQM
DQ
D1
D2
D3
D4
D5
D6
Read/write interrupt timing
CLK
CMD
Read data Read data
ADD
A
B
DQ (CL2)
DQ (CL3)
QA0
tCCD
tCCD = CAS to CAS delay (= 1 CLK)
read interrupted by read (CL = 2, BL = 4)
QB0
QB1
QB2
QB3
QA0
QB0
QB1
QB2
QB3
7/5/00
ALLIANCE SEMICONDUCTOR
15