EDS6416AHTA-TI
Relationship Between Frequency and Minimum Latency
Parameter
-75
Frequency (MHz)
tCK (ns)
133
7.5
100
10
Symbol
Unit
tCK
Notes
1
Active command to column command
(same bank)
Active command to active command
(same bank)
Active command to precharge command
(same bank)
Precharge command to active command
(same bank)
lRCD
3
9
6
3
2
2
7
5
2
2
lRC
tCK
tCK
tCK
tCK
1
1
1
1
lRAS
lRP
Write recovery or data-in to precharge command
(same bank)
lDPL
Active command to active command
lRRD
lSREX
lDAL
2
1
5
2
1
4
tCK
tCK
tCK
1
(different bank)
Self refresh exit time
Last data in to active command
(Auto precharge, same bank)
2
= [lDPL + lRP]
= [lRC]
3
Self refresh exit to command input
lSEC
9
7
tCK
Precharge command to high impedance
(CL = 2)
(CL = 3)
Last data out to active command
(Auto precharge, same bank)
lHZP
lHZP
lAPR
2
3
1
tCK
tCK
tCK
3
1
Last data out to precharge (early precharge)
(CL = 2)
lEP
–1
tCK
(CL = 3)
lEP
–2
1
–2
1
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
Column command to column command
Write command to data in latency
DQM to data in
lCCD
lWCD
lDID
0
0
0
0
DQM to data out
lDOD
lCLE
lMRD
lCDD
lPEC
2
2
CKE to CLK disable
1
1
Register set to active command
/CS to command disable
Power down exit to command input
2
2
0
0
1
1
Notes: 1. lRCD to lRRD are recommended value.
2. Be valid [DESL] or [NOP] at next command of self refresh exit.
3. Except [DESL] and [NOP]
Preliminary Data Sheet E0636E10 (Ver.1.0)
9
ELPIDA [ ELPIDA MEMORY ]
