EM44CM1688LBC
AC Operating Test Characteristics (Continued)
(VDD=1.8V 0.1V, TA=0°C ~70°C)
Speed 667/800
Units
Max.
Symbol
Parameter
Min.
2
ODT turn-on delay
t
AOND
AOFD
AON
AOF
AONPD
AOFPD
2
t
t
CK
CK
ODT turn-off delay
t
2.5
2.5
tAC(max) +0.7
tAC(max) +0.6
2*tCK + tAC(max) +1
2.5*tCK + tAC(max) +1
-
ODT turn-on(Note1)
t
tAC(min.)
tAC(min.)
tAC(min.) +2
tAC(min.) +2
3
ns
ns
ns
ns
ODT turn-off(Note2)
t
ODT turn-on in power-down mode
ODT turn-off in power-down mode
ODT to power-down mode entry latency
ODT power-down exit latency
t
t
t
ANPD
AXPD
t
CK
CK
t
8
-
t
Note 1: ODT turn on time min is when the device leaves high impedance and ODT resistance begins to
turn on. ODT turn on time max is when the ODT resistance is fully on. Both are measure from
tAOND
.
Note 2: ODT turn off time min is when the device starts to turn off ODT resistance ODT turn off time max is
when the bus is in high impedance. Both are measured from tAOFD
.
Dec. 2012
14/29
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EOREX [ EOREX CORPORATION ]
