A43E06321 AMIC Technology, Corp., A43E06321 Datasheet - Page 15
A43E06321
Manufacturer Part Number
A43E06321
Description
512k x 32-Bit x 2 Banks Low Power Synchronous Dram
Manufacturer
AMIC Technology, Corp.
Datasheet
1.A43E06321.pdf
(46 pages)
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Basic feature And Function Descriptions
1. CLOCK Suspend
2. DQM Operation
PRELIMINARY
DQ(CL2)
DQ(CL3)
DQ(CL2)
CMD
DQM
DQ(CL3)
CLK
* Note :
CMD
CLK
CKE
DQM
Note: CLK to CLK disable/enable=1 clock
DQ(CL2)
DQ(CL3)
Internal
CMD
CKE
CLK
CLK
1) Write Mask (BL=4)
RD
2) Read Mask (BL=4)
1) Click Suspended During Write (BL=4)
1. DQM makes data out Hi-Z after 2 clocks which should masked by CKE “L”.
2. DQM masks both data-in and data-out.
WR
D0
D0
(July, 2005, Version 0.0)
WR
DQM to Data-in Mask = 0CLK
D0
D0
D1
D1
D1
D1
Masked by CKE
Not Written
Q0
D3
D3
Masked by CKE
Hi-Z
Hi-Z
D2
D2
D3
D3
Q1
Q2
2) Read Mask (BL=4)
2) Clock Suspended During Read (BL=4)
RD
14
Hi-Z
Hi-Z
RD
Q4
Q3
Q0
Q0
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Masked by CKE
Q0
Q1
Q1
Q1
DQM to Data-out Mask = 2
AMIC Technology, Corp.
Q6
Q5
Masked by CKE
Q3
Q2
Q2
Q1
Suspended Dout
Q7
Q6
Q3
Q3
Q2
Q8
Q7
A43E06321
Q3
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