HM5264165F-75 View Datasheet(PDF) - Elpida Memory, Inc

Part Name

Description

Manufacturer

HM5264165F-75

64M LVTTL interface SDRAM 133 MHz/100 MHz 1-Mword × 16-bit × 4-bank/2-Mword × 8-bit × 4-bank /4-Mword × 4-bit × 4-bank PC/133, PC/100 SDRAM

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

BST to valid data

1

2

BST to high impedance

2

3

CAS Latency = 2, Burst Length = full page

CLK

Command

DQ (output)

out

out

out

CAS Latency = 3, Burst Length = full page

BST

out

out

out

l BSR = 1 clock

l BSH = 2 clocks

CLK

Command

DQ (output)

out

out

out

BST

out

out

out

out

l BSR= 2 clocks

l BSH= 3 clocks

Data Sheet E0135H10

26

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