
NT5SV16M4DT
NT5SV8M8DT
NT5SV4M16DT
REV 1.1
10/01
17
NANYA TECHNOLOGY CORP
. All rights reserved.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Clock and Clock Enable Parameters
Symbol
Parameter
-6K
-7K
-7
Units
Notes
Min.
6
7.5
—
—
—
—
2.5
2.5
1.5
0.8
0
0.5
Max.
1000
1000
—
—
5.4
5.4
—
—
—
—
6
10
Min.
7
7.5
—
—
—
—
2.5
2.5
1.5
0.8
0
0.5
Max.
1000
1000
—
—
5.4
5.4
—
—
—
—
7
10
Min.
7
10
—
—
—
—
3
3
2
1
0
0.5
Max.
1000
1000
—
—
5.4
6
—
—
—
—
7.5
10
t
CK3
t
CK2
t
AC3 (A)
t
AC2 (A)
t
AC3 (B)
t
AC2 (B)
t
CKH
t
CKL
t
CES
t
CEH
t
SB
t
T
Clock Cycle Time, CAS Latency = 3
Clock Cycle Time, CAS Latency = 2
Clock Access Time, CAS Latency = 3
Clock Access Time, CAS Latency = 2
Clock Access Time, CAS Latency = 3
Clock Access Time, CAS Latency = 2
Clock High Pulse Width
Clock Low Pulse Width
Clock Enable Set-up Time
Clock Enable Hold Time
Power down mode Entry Time
Transition Time (Rise and Fall)
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1
1
2
2
1. Access time is measured at 1.4V. See AC Characteristics: notes 1, 2, 3, 4, 5 and load circuit A.
2. Access time is measured at 1.4V. See AC Characteristics: notes 1, 2, 3, 6, 7 and load circuit B.
Common Parameters
Symbol
Parameter
-6K
-7K
-7
Units
Notes
Min.
Max.
Min.
Max.
Min.
Max.
t
CS
Command Setup Time
1.5
—
1.5
—
1.5
—
ns
t
CH
Command Hold Time
0.8
—
0.8
—
0.8
—
ns
t
AS
Address and Bank Select Set-up Time
1.5
—
1.5
—
1.5
—
ns
t
AH
Address and Bank Select Hold Time
0.8
—
0.8
—
0.8
—
ns
t
RCD
RAS to CAS Delay
15
—
15
—
20
—
ns
1
t
RC
Bank Cycle Time
48
—
52
—
63
—
ns
1
t
RAS
Active Command Period
36
100K
37
100K
42
100K
ns
1
t
RP
Precharge Time
15
—
15
—
20
—
ns
1
t
RRD
Bank to Bank Delay Time
12
—
14
—
14
—
ns
1
1. These parameters account for the number of clock cycle and depend on the operating frequency of the clock, as follows:
the number of clock cycles = specified value of timing / clock period (count fractions as a whole number).
Mode Register Set Cycle
Symbol
Parameter
-6K
-7K
-7
Units
Min.
Max.
Min.
Max.
Min.
Max.
t
RSC
Mode Register Set Cycle Time
12
—
14
—
14
—
ns