1GB-AUTO-AS4C64M16D3 Datasheet, PDF (82/86 Pages) Alliance Semiconductor Corporation – Supports JEDEC clock jitter specification

1Gb Auto-AS4C64M16D3
Figure 74. Synchronous to asynchronous transition after Refresh command
(AL = 0; CWL = 5; tANPD = WL - 1 = 4)
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
T12
T13
Ta0
Ta1
Ta2
Ta3
CK#
CK
COMMAND
NOP
REF
NOP
NOP
NOP
NOP
NOP
NOP
NOP
CKE
Last sync.
ODT
RTT
Sync. or
async. ODT
RTT
First async.
ODT
RTT
RTT
tRFC (min)
tANPD
PD entry transition period
tCPDED(min)
tAOF(min)
ODTLoff
tAOF(max)
RTT
RTT
tAOFPD(max)
ODTLoff + tAOFPD(min)
tAOFPD(min)
ODTLoff + tAOFPD(max)
TIME BREAK
tAOFPD(min)
tAOFPD(max)
TRANSITIONING DATA
Don't Care
Figure 75. Asynchronous to synchronous transition during Precharge Power Down
(with DLL frozen) exit (CL = 6; AL = CL - 1; CWL = 5; tANPD = WL - 1 = 9)
T0
CK#
CK
COMMAND
T1
T2
Ta0
CKE
tANPD
Last async.
ODT
RTT
Sync. or
async. ODT
RTT
tAOFPD(min)
tAOFPD(max)
RTT
RTT
First sync.
ODT
RTT
Ta1
NOP
Ta2
Ta3
NOP
NOP
tAOFPD(min)
Ta4
Ta5
Ta6
Tb0
Tb1
NOP
NOP
NOP
NOP
NOP
PD exit transition period
tXPDLL
ODTLoff + tAOF(min)
tAOFPD(max)
ODTLoff + tAOF(max)
RTT
Tb2
Tc0
Tc1
Tc2
Td0
Td1
NOP
NOP
NOP
NOP
NOP
NOP
TIME BREAK
ODTLoff
tAOF(min)
TRANSITIONING DATA
tAOF(max)
Don't Care
Confidential
--82/86
Rev.1.0 June 2015