KMM372V404BS SAMSUNG [Samsung semiconductor], KMM372V404BS Datasheet - Page 4

• Manufacturer Part Number: KMM372V404BS
• Description: 4M x 72 DRAM DIMM with ECC using 4Mx16, 4Mx4 4K Refresh, 3.3V
• Manufacturer: SAMSUNG [Samsung semiconductor]

DRAM MODULE
CAPACITANCE
AC CHARACTERISTICS
Test condition : V
Input capacitance[A0, B0, A1 - A11]
Input capacitance[W0, W2, OE0, OE2]
Input capacitance[RAS0, RAS2]
Input capacitance[CAS0, CAS4]
Input/Output capacitance[DQ0 - 71]
Random read or write cycle time
Read-modify-write cycle time
Access time from RAS
Access time from CAS
Access time from column address
CAS to output in Low-Z
Output buffer turn-off delay
Transition time(rise and fall)
RAS precharge time
RAS pulse width
RAS hold time
CAS hold time
CAS pulse width
RAS to CAS delay time
RAS to column address delay time
CAS to RAS precharge time
Row address set-up time
Row address hold time
Column address set-up time
Column address hold time
Column address to RAS lead time
Read command set-up time
Read command hold referencde to CAS
Read command hold referenced to RAS
Write command hold time
Write command pulse width
Write command to RAS lead time
Write command to CAS lead time
Data in set-up time
Data in hold time
Refresh period
Write command set-up time
CAS to W delay time
Column address to W delay time
CAS prechange to W delay time
ih
Parameter
/V
Item
il
=2.2/0.7V, V
(T
A
= 25 C, f = 1MHz)
oh
(0 C T
/V
ol
=2.0/0.8V, output loading CL=100pF
A
70 C, V
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
RC
RWC
RAC
CAC
AA
CLZ
OFF
T
RP
RAS
RSH
CSH
CAS
RCD
RAD
CRP
ASR
RAH
ASC
CAH
RAL
RCS
RCH
RRH
WCH
WP
RWL
CWL
DS
DH
REF
WCS
CWD
AWD
CPWD
Symbol
C
C
C
C
C
IN1
IN2
IN3
IN4
DQ
CC
=3.3V 0.3V. See notes 1,2.)
Min
133
90
30
50
18
48
13
18
13
10
10
30
10
10
20
13
15
36
48
53
-2
-2
5
5
1
5
8
0
0
0
0
-5
Min
-
-
-
-
-
Max
10K
10K
50
18
30
18
50
32
20
64
Min
110
155
40
60
20
58
15
18
13
10
10
35
10
10
20
15
15
40
55
60
-2
-2
5
5
1
5
8
0
0
0
0
Max
20
20
31
20
17
-6
KMM372V404BS
Max
10K
10K
60
20
35
20
50
40
25
64
Unit
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
pF
pF
pF
pF
pF
3,4,5,11
3,10,11
3,4,10
10,11
Note
3,11
6,11
4,11
8,11
9,11
9,11
7,14
11
11
11
11
11
12
12
11
11
15
2
8
7
7
7