hm5264165f-75 Elpida Memory, Inc., hm5264165f-75 Datasheet - Page 26

• Manufacturer Part Number: hm5264165f-75
• Description: 64m Lvttl Interface Sdram
• Manufacturer: Elpida Memory, Inc.

HM5264165F/HM5264805F/HM5264405F-75/A60/B60
Full-page Burst Stop
Burst stop command during burst read: The burst stop (BST) command is used to stop data output during
a full-page burst. The BST command sets the output buffer to High-Z and stops the full-page burst read. The
timing from command input to the last data changes depending on the CAS latency setting. In addition, the
BST command is valid only during full-page burst mode, and is illegal with burst lengths 1, 2, 4 and 8.
CAS latency
2
3
CAS Latency = 2, Burst Length = full page
CAS Latency = 3, Burst Length = full page
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DQ (output)
Command
DQ (output)
Command
CLK
CLK
out
out
BST to valid data
1
2
out
out
Data Sheet E0135H10
out
out
out
out
BST to high impedance
2
3
l
BSR
out
out
BST
BST
l
BSR
= 1 clock
= 2 clocks
out
out
l
BSH
= 2 clocks
out
l
BSH
= 3 clocks