GM72V66441ET/ELT
AC Characteristics (Ta = 0 to 70C, VCC, VCCQ = 3.3 V +/- 0.3 V, VSS, VSSQ = 0 V)
- 7
- 75
- 8
- 7K
- 7J
Parameter
Symbol
Unit Notes
Min Max Min Max Min Max Min Max Min Max
(CL=2)
(CL=3)
10
7
-
-
10
7.5
2.5
2.5
-
-
-
10
8
3
3
-
-
-
10
10
3
-
-
15
10
3
-
-
t
t
CK
CK
System clock
cycle time
ns
1
CLK high pulse width
CLK low pulse width
2.5
2.5
-
-
-
-
-
-
ns
ns
1
1
t
CKH
-
-
-
3
-
3
-
t
CKL
(CL=2)
(CL=3)
6
6
6
6
-
-
6
6
-
-
8
6
-
t
AC
AC
OH
Access time
from CLK
ns
ns
1, 2
1, 2
-
5.4
-
-
5.4
-
-
-
-
t
Data-out hold time
2.7
2.7
3
3
3
t
CLK to Data-out low
impedance
CLK to Data-out
high impedance
( CL = 2,3 )
1.5
-
-
1.5
-
-
2
-
-
2
-
-
2
-
-
ns 1, 2, 3
t
LZ
5.4
5.4
6
6
6
ns
1, 4
t
t
HZ
DS
Data-in setup time
Data-in hold time
Address setup time
Address hold time
CKE setup time
1.5
0.8
1.5
0.8
1.5
-
-
-
-
-
1.5
0.8
1.5
0.8
1.5
-
-
-
-
-
2
1
2
1
2
-
-
-
-
-
2
1
2
1
2
-
-
-
-
-
2
1
2
1
2
-
-
-
-
-
ns
ns
ns
ns
ns
1
1
t
DH
AS
AH
CES
1
t
1
t
1, 5
t
CKE setup time for
power down exit
1.5
0.8
-
-
1.5
0.8
-
-
2
1
-
-
2
1
-
-
2
1
-
-
ns
ns
1
1
t
CESP
CKE hold time
t
CEH
Command (CS, RAS,
CAS, WE, DQM)
setup time
1.5
0.8
-
-
1.5
0.8
-
-
2
1
-
-
2
1
-
-
2
1
-
-
ns
ns
1
1
t
CS
Command (CS, RAS,
CAS, WE, DQM)
hold time
t
CH
Ref/Active to Ref/Active
command period
Active to Precharge
command period
Active command to
column command
(same bank)
62
42
-
65
45
-
68
48
-
70
50
-
70
50
-
ns
ns
1
1
t
RC
120000
120000
120000
120000
120000
t
t
RAS
RCD
20
20
-
-
20
20
-
-
20
20
-
-
20
20
-
-
20
20
-
-
ns
ns
1
1
Precharge to active
command period
t
RP
Rev. 1.1/Apr.01
-6-