EDS6432AFTA, EDS6432CFTA
Read with auto precharge to Read command interval
1. Different bank: When some banks are in the active state, the second read command (another bank) is executed.
Even when the first read with auto-precharge is a burst read that is not yet finished, the data read by the second
command is valid. The internal auto-precharge of one bank starts at the next clock of the second command.
CLK
Command
BS
READA
READ
DQ
out A0
out A1
out B0
out B1
bank0
Read A
bank3
Read
CL= 3
BL = 4
Note: Internal auto-precharge starts at the timing indicated by "
".
Read with Auto Precharge to Read Command Interval (Different bank)
2. Same bank: The consecutive read command (the same bank) is illegal.
Write with auto precharge to Write command interval
1. Different bank: When some banks are in the active state, the second write command (another bank) is executed.
In the case of burst writes, the second write command has priority. The internal auto-precharge of one bank
starts 2 clocks later from the second command.
CLK
Command
BS
WRITA
in A0
WRIT
in B0
DQ
in A1
in B1
in B2
".
in B3
bank0
Write A
bank3
Write
BL= 4
Note: Internal auto-precharge starts at the timing indicated by "
Write with Auto Precharge to Write Command Interval (Different bank)
2. Same bank: The consecutive write command (the same bank) is illegal.
Data Sheet E0487E50 (Ver. 5.0)
33
ELPIDA [ ELPIDA MEMORY ]
