eds1232aase Elpida Memory, Inc., eds1232aase Datasheet - Page 38

• Manufacturer Part Number: eds1232aase
• Description: 128m Bits Sdram
• Manufacturer: Elpida Memory, Inc.

Read command to Precharge command interval (same bank)
When the precharge command is executed for the same bank as the read command that preceded it, the minimum
interval between the two commands is one clock. However, since the output buffer then becomes High-Z after the
clocks defined by lHZP, there is a case of interruption to burst read data output will be interrupted, if the precharge
command is input during burst read. To read all data by burst read, the clocks defined by lEP must be assured as
an interval from the final data output to precharge command execution.
Data Sheet E0350E31 (Ver. 3.1)
Command
Command
Command
CLK
CLK
Command
CLK
CLK
DQ
DQ
DQ
DQ
READ to PRECHARGE Command Interval (same bank): To stop output data (CL = 2, BL = 1, 2, 4, 8)
READ to PRECHARGE Command Interval (same bank): To stop output data (CL = 3, BL = 1, 2, 4, 8)
READ to PRECHARGE Command Interval (same bank): To output all data (CL = 2, BL = 4)
READ to PRECHARGE Command Interval (same bank): To output all data (CL = 3, BL = 4)
READ
READ
READ
READ
PRE/PALL
PRE/PALL
CL=2
CL=3
lHZP = 2
out A0
out A0
lHZP =3
out A1
out A0
out A0
38
High-Z
PRE/PALL
PRE/PALL
out A2
out A1
lEP = -1 cycle
High-Z
lEP = -2 cycle
out A3
out A2
out A3
EDS1232AASE