mt47h64m16hw-3 Micron Semiconductor Products, mt47h64m16hw-3 Datasheet - Page 31

• Manufacturer Part Number: mt47h64m16hw-3
• Description: 1gb X4, X8, X16 Ddr2 Sdram
• Manufacturer: Micron Semiconductor Products

AC Timing Operating Specifications
Table 13:
Clock cycle
time
CK high-level
width
CK low-level width
Half clock period
Absolute
Absolute CK high-
level width
Absolute CK low-
level width
Parameter
AC Characteristics
t
CK
AC Operating Specifications and Conditions for -187E, -25E, -3E, -3, -37E, and -5E Speeds (Sheet 1 of 7)
Not all speed grades listed may be supported for this device; refer to the title page for speeds supported;
Notes: 1–5 (page 38) apply to the entire table; V
CL = 7
CL = 6
CL = 5
CL = 4
CL = 3
Symbol
(AVG)
(AVG)
(AVG)
(AVG)
(AVG)
(AVG)
(AVG)
(ABS)
(ABS)
(ABS)
t
t
t
t
t
t
t
t
t
t
t
CK
CK
CK
CK
CK
CH
HP
CK
CH
CL
CL
1.875
Min
0.48
0.48
2.5
3.0
–
–
-187E
Max
0.52
0.52
8.0
8.0
8.0
–
–
Min
3.75
0.48
0.48
2.5
2.5
–
–
-25E
MAX =
MAX =
MIN =
Max
MIN =
0.52
0.52
8.0
8.0
8.0
–
–
DD
t
t
Q = +1.8V ±0.1V, V
t
CK (AVG) MAX ×
t
CK (AVG) MAX ×
CK (AVG) MIN ×
CK (AVG) MIN ×
MAX =
Min
3.75
0.48
0.48
2.5
3.0
MIN =
–
–
-25
MIN = lesser of
Max
0.52
0.52
t
t
CK (AVG) MAX +
8.0
8.0
8.0
CK (AVG) MIN +
–
–
MAX = n/a
Min
0.48
0.48
3.0
3.0
t
t
t
t
–
–
–
CH (AVG) MAX +
CH (AVG) MIN +
CL (AVG) MIN +
CL (AVG) MAX +
DD
-3E
= +1.8V ±0.1V
t
Max
0.52
0.52
CH and
8.0
8.0
–
–
–
t
t
JIT
JIT
PER
PER
Min
3.75
0.48
0.48
t
3.0
5.0
CL
–
–
(MIN)
(MAX)
t
t
-3
JIT
t
JIT
t
JIT
JIT
Max
DTY
0.52
0.52
DTY
DTY
8.0
8.0
8.0
DTY
–
–
(MIN)
(MIN)
(MAX)
(MAX)
Min
3.75
0.48
0.48
5.0
–
–
–
-37E
Max
0.52
0.52
8.0
8.0
–
–
–
Min
0.48
0.48
5.0
5.0
–
–
–
-5E
Max
0.52
0.52
8.0
8.0
–
–
–
Units Notes
t
t
ns
CK
CK
ps
ps
ps
ps
6, 7, 8,
11
10
9