HYB18T512160AF INFINEON [Infineon Technologies AG], HYB18T512160AF Datasheet - Page 41

• Manufacturer Part Number: HYB18T512160AF
• Description: 512-Mbit DDR2 SDRAM
• Manufacturer: INFINEON [Infineon Technologies AG]

ODT timing modes
Depending on the operating mode asynchronous or
synchronous ODT timings apply.
Asynchronous ODT timings (
the on-die DLL is disabled.
These modes are:
Figure 13
Note:
1. Synchronous ODT timings apply for Active Mode
2. ODT turn-on time (
Data Sheet
and Standby Mode with CKE HIGH and for the
“Fast Exit” Active Power Down Mode (MRS bit A12
set to “0”). In all these modes the on-die DLL is
enabled.
leaves high impedance and ODT resistance begins
CKE
CK, CK
DQ
ODT
T0
ODT Timing for Active and Standby (Idle) Modes (Synchronous ODT timings)
t
IS
t
T1
AON.MIN
tAOND (2 tck)
t
AOFPD
) is when the device
T2
tAON(min)
,
t
AONPD
) apply when
t
IS
T3
tAON(max)
tAOFD (2.5 tck)
41
T4
•
•
Synchronous ODT timings (
apply for all other modes.
3. ODT turn off time min. (
Rtt
tAOF(min)
Slow Exit Active Power Down Mode (with MRS bit
A12 is set to “1”)
Precharge Power Down Mode
to turn on. ODT turn on time max. (
the ODT resistance is fully on. Both are measured
from t
starts to turn off the ODT resistance.ODT turn off
time max. (
impedance. Both are measured from
HYB18T512[40/80/16]0AF–[3/3S/3.7/5]
T5
AOND
.
t
AOF.MAX
t
IS
tAOF(max)
T6
) is when the bus is in high
512-Mbit DDR2 SDRAM
t
AOF.MIN
T7
t
Functional Description
AOND
09112003-SDM9-IQ3P
) is when the device
,
Rev. 1.3, 2005-01
t
t
AOFD
AON.MAX
T8
t
AOFD
,
ODT01
t
AON
) is when
.
,
t
AOF
)