LG Semicon
GM72V66841CT/CLT
AC Characteristics (Ta = 0 to 70C, VCC, VCCQ = 3.3 V +/- 0.3 V, VSS, VSSQ = 0 V)
(Continued)
- 7K
- 7J
- 8
- 10K
Parameter
Symbol
Unit Notes
Min Max Min Max Min Max Min Max
Write recovery or data-in
to precharge lead time
Active (a) to Active (b)
command period
10
20
-
-
10
20
-
-
10
16
-
-
15
20
-
-
ns
ns
1
1
t
RWL
t
RRD
Transition time
(rise to fall)
1
-
5
1
-
5
1
-
5
1
-
5
ns
t
T
Refresh period
Notes :
64
64
64
64
ms
t
REF
1. AC measurement assumes tT = 1ns. Reference level for timing of input signals is 1.40V.
2. Access time is measured at 1.40V. Load condition is CL = 50pF without termination.
3. tLZ (min)defines the time at which the outputs achieves the low impedance state.
4. tHZ (max)defines the time at which the outputs achieves the high impedance state.
5. tCES define CKE setup time to CKE rising edge except Power down exit command.
Test Condition
- Input and output-timing reference levels: 1.4V
- Input waveform and output load: See following figures
I/O
OPEN
80%
20%
2.4V
0.4V
input
CL
tT
tT
41
LG [ LG SEMICON CO.,LTD. ]
