HB52R329E22-F Datasheet, PDF (39/66 Pages) Elpida Memory – 256 MB Registered SDRAM DIMM 32-Mword × 72-bit, 100 MHz Memory Bus, 2-Bank Module (36 pcs of 16 M × 4 Components) PC100 SDRAM

HB52R329E22-F
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 CE 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.
CE latency
3
4
BST to valid data
2
3
BST to high impedance
3
4
CE Latency = 3, Burst Length = full page
CK
Command
Dout
out
out
out
CE Latency = 4, Burst Length = full page
BST
out
out
out
l _BSR = 2 clocks
out
l _BSH = 3 clocks
CK
Command
Dout
out
out
out
BST
out
out
out
out
out
l _BSR= 3 clocks
l _BSH= 4 clocks
Data Sheet No. E0112H10
39