MOSEL VITELIC
AC Characteristics
V43644R04VCTG-75
T
A
= 0° to 70°C; V
SS
= 0V; V
CC
= 3.3V
±
0.3V, t
T
= 1 ns
Limit Values
-75
#
Symbol
Parameter
Min.
Max.
Unit
Note
Clock and Clock Enable
1
t
CK
Clock Cycle Time
CAS Latency = 3
CAS Latency = 2
Clock Frequency
CAS Latency = 3
CAS Latency = 2
Access Time from Clock
CAS Latency = 3
CAS Latency = 2
Clock High Pulse Width
Clock Low Pulse Width
Transition Tim
7.5
10
–
–
s
ns
ns
2
t
CK
–
–
133
100
MHz
MHz
2, 4
3
t
AC
–
_
2.5
2.5
0.3
5.4
6
–
–
1.2
ns
ns
ns
ns
ns
4
5
6
t
CH
t
CL
t
T
Setup and Hold Times
7
8
9
10
11
12
t
IS
t
IH
t
CKS
t
CKH
t
RSC
t
SB
Input Setup Time
Input Hold Time
Input Setup Time
CKE Hold Time
Mode Register Set-up Time
Power Down Mode Entry Time
1.5
0.8
1.5
0.8
15
0
–
–
–
–
–
7.5
ns
ns
ns
ns
ns
ns
5
5
5
5
Common Parameters
13
14
15
16
17
18
t
RCD
t
RP
t
RAS
t
RC
t
RRD
t
CCD
Row to Column Delay Time
Row Precharge Time
Row Active Time
Row Cycle Time
Activate(a) to Activate(b) Command Period
CAS(a) to CAS(b) Command Period
20
20
45
60
15
1
–
–
100K
–
–
–
ns
ns
ns
ns
ns
CLK
6
6
6
6
6
Refresh Cycle
19
20
t
REF
t
SREX
Refresh Period (4096 cycles)
Self Refresh Exit Time
—
64
ms
ns
10
V43644R04VCTG-75 Rev. 1.1 September 2000
7
MOSEL [ MOSEL VITELIC, CORP ]
