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MT18LD472A 데이터시트 PDF




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부품번호 MT18LD472A 기능
기능 (MT18LD272A / MT18LD472A) NONBUFFERED DRAM DIMMs
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MT18LD472A 데이터시트, 핀배열, 회로
www.DataSheet4U.com
OBSOLETE
2, 4 MEG x 72
NONBUFFERED DRAM DIMMs
DRAM
MODULE
MT9LD272A(X), MT18LD472A(X)
For the latest data sheet revisions, please refer to the Micron
Web site: www.micron.com/mti/msp/html/datasheet.html
FEATURES
• JEDEC-standard, eight-CAS#, ECC pinout in a 168-pin,
dual in-line memory module (DIMM)
• 16MB (2 Meg x 72) and 32MB (4 Meg x 72)
• Nonbuffered
• High-performance CMOS silicon-gate process
• Single +3.3V ±0.3V power supply
• All inputs, outputs and clocks are TTL-compatible
• Refresh modes: RAS#-ONLY, CAS#-BEFORE-RAS#
(CBR) and HIDDEN
• 2,048-cycle refresh distributed across 32ms
• FAST-PAGE-MODE (FPM) or Extended Data-Out
(EDO) PAGE MODE access cycles
• Serial presence-detect (SPD)
OPTIONS
• Package
168-pin DIMM (gold)
• Timing
50ns access
60ns access
• Access Cycles
FAST PAGE MODE
EDO PAGE MODE
*EDO version only
MARKING
G
-5*
-6
None
X
KEY TIMING PARAMETERS
EDO Operating Mode
SPEED
-5
-6
tRC
84ns
104ns
tRAC
50ns
60ns
tPC
20ns
25ns
tAA
25ns
30ns
tCAC
13ns
15ns
tCAS
8ns
10ns
FPM Operating Mode
SPEED tRC
tRAC
-6 110ns 60ns
tPC
35ns
tAA
30ns
tCAC
15ns
tRP
40ns
NOTE: Pin symbols in parentheses are not used on these modules but may be used
for other modules in this product family. They are for reference only.
2, 4 Meg x 72 Nonbuffered DRAM DIMMs
DM60.p65 – Rev. 6/98
1
PIN ASSIGNMENT (Front View)
168-Pin DIMM
PIN SYMBOL PIN SYMBOL PIN SYMBOL PIN SYMBOL
1 VSS 43 VSS 85 VSS 127 VSS
2 DQ0 44 OE2# 86 DQ32 128 RFU
3 DQ1 45 RAS2# 87 DQ33 129 NC/RAS3#*
4 DQ2 46 CAS2# 88 DQ34 130 CAS6#
5 DQ3 47 CAS3# 89 DQ35 131 CAS7#
6 VDD 48 WE2# 90 VDD 132 RFU
7 DQ4 49 VDD 91 DQ36 133 VDD
8
DQ5 50
NC
92 DQ37 134
NC
9
DQ6 51
NC
93 DQ38 135
NC
10 DQ7 52 CB2 94 DQ39 136 CB6
11 DQ8 53 CB3 95 DQ40 137 CB7
12 VSS 54 VSS 96 VSS 138 VSS
13 DQ9 55 DQ16 97 DQ41 139 DQ48
14 DQ10 56 DQ17 98 DQ42 140 DQ49
15 DQ11 57 DQ18 99 DQ43 141 DQ50
16 DQ12 58 DQ19 100 DQ44 142 DQ51
17 DQ13 59
VDD 101 DQ45 143 VDD
18 VDD 60 DQ20 102 VDD 144 DQ52
19 DQ14 61
NC 103 DQ46 145 NC
20 DQ15 62
RFU 104 DQ47 146 RFU
21 CB0 63
NC 105 CB4 147 NC
22 CB1 64 VSS 106 CB5 148 VSS
23 VSS 65 DQ21 107 VSS 149 DQ53
24 NC 66 DQ22 108 NC 150 DQ54
25 NC 67 DQ23 109 NC 151 DQ55
26 VDD 68 VSS 110 VDD 152 VSS
27 WE0# 69 DQ24 111 RFU 153 DQ56
28 CAS0# 70 DQ25 112 CAS4# 154 DQ57
29 CAS1# 71 DQ26 113 CAS5# 155 DQ58
30 RAS0# 72 DQ27 114 NC 156 DQ59
31 OE0# 73
VDD 115 RFU 157 VDD
32 VSS 74 DQ28 116 VSS 158 DQ60
33 A0 75 DQ29 117 A1 159 DQ61
34 A2 76 DQ30 118 A3 160 DQ62
35 A4 77 DQ31 119 A5 161 DQ63
36 A6 78 VSS 120 A7 162 VSS
37 A8 79 NC 121 A9 163 NC
38 A10 80
NC 122 NC (A11) 164 NC
39 NC (A12) 81
NC 123 NC (A13) 165 SA0
40 VDD 82 SDA 124 VDD 166 SA1
41 VDD 83 SCL 125 RFU 167 SA2
42 RFU 84 VDD 126 RFU 168 VDD
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©1998, Micron Technology, Inc.




MT18LD472A pdf, 반도체, 판매, 대치품
OBSOLETE
WE0#
OE0#
RAS0#
CAS0#
CAS1#
CAS2#
CAS3#
A0-A10
WE2#
OE2#
RAS2#
CAS4#
CAS5#
CAS6#
CAS7#
DQ0-DQ7
WE#
OE#
RAS#
CAS#
U1
A0–A10
11
DQ32-DQ39
DQ0-DQ7
WE#
OE#
U6
RAS#
CAS# A0–A10
11
2, 4 MEG x 72
NONBUFFERED DRAM DIMMs
FUNCTIONAL BLOCK DIAGRAM
MT9LD272A(X) (16MB)
DQ8-DQ15
CB0-CB7
DQ16-DQ23
DQ0-DQ7
WE#
OE#
U2
RAS#
CAS# A0–A10
11
DQ0-DQ7
WE#
OE#
U3
RAS#
CAS# A0–A10
11
DQ0-DQ7
WE#
OE#
U4
RAS#
CAS# A0–A10
11
DQ24-DQ31
DQ0-DQ7
WE#
OE#
U5
RAS#
CAS# A0–A10
11
DQ40-DQ41
DQ0-DQ7
WE#
OE#
U7
RAS#
CAS# A0–A10
11
DQ48-DQ55
DQ0-DQ7
WE#
OE#
U8
RAS#
CAS# A0–A10
11
DQ56-DQ63
DQ0-DQ7
WE#
OE#
U9
RAS#
CAS# A0–A10
11
SPD
SCL
A0 A1 A2
SA0 SA1 SA2
SDA
VDD
VSS
U1-U9
U1-U9
U1-U9 = MT4LC2M8B1 FAST PAGE MODE
U1-U9 = MT4LC2M8E7 EDO PAGE MODE
2, 4 Meg x 72 Nonbuffered DRAM DIMMs
DM60.p65 – Rev. 6/98
4 Micron Technology, Inc., reserves the right to change products or specifications without notice.
©1998, Micron Technology, Inc.

4페이지










MT18LD472A 전자부품, 판매, 대치품
OBSOLETE
2, 4 MEG x 72
NONBUFFERED DRAM DIMMs
SERIAL PRESENCE-DETECT MATRIX
BYTE
0
1
DESCRIPTION
NUMBER OF BYTES USED BY MICRON
TOTAL NUMBER OF SPD MEMORY BYTES
ENTRY (VERSION) BIT7 BIT6 BIT5 BIT4 BIT3 BIT2 BIT1 BIT0
128 1 0 0 0 0 0 0 0
256 0 0 0 0 1 0 0 0
HEX
80
08
2 MEMORY TYPE
FAST PAGE MODE 0 0 0 0 0 0 0 1 01
EDO PAGE MODE 0 0 0 0 0 0 1 0 02
3 NUMBER OF ROW ADDRESSES
11 0 0 0 0 1 0 1 1 0B
4 NUMBER OF COLUMN ADDRESSES
10 (16MB)
11 (32MB)
0 0 0 0 1 0 1 0 0A
0 0 0 0 1 0 1 1 0B
5 NUMBER OF BANKS
6 DATA WIDTH
1 0 0 0 0 0 0 0 1 01
x72 0 1 0 0 1 0 0 0 48
7 DATA WIDTH (continued)
8 VOLTAGE INTERFACE
9 RAS# ACCESS TIME (tRAC)
10 CAS# ACCESS TIME (tCAC)
NONE
LVTTL
50ns (-5)
60ns (-6)
13ns (-5)
15ns (-6)
0 0 0 0 0 0 0 0 00
0 0 0 0 0 0 0 1 01
0 0 1 1 0 0 1 0 32
0 0 1 1 1 1 0 0 3C
0 0 0 0 1 1 0 1 0D
0 0 0 0 1 1 1 1 0F
11 MODULE CONFIGURATION TYPE
ECC 0 0 0 0 0 0 1 0 02
12 REFRESH RATES
13 DRAM WIDTH (PRIMARY DRAM)
15.625µs/NORMAL 0 0 0 0 0 0 0 0 00
x8 (16MB)
0 0 0 0 1 0 0 0 08
x4 (32MB)
0 0 0 0 0 1 0 0 04
14 ERROR CHECKING DRAM DATA WIDTH
15-61
62
63
RESERVED
SPD REVISION
CHECKSUM FOR BYTES 0-62
x8 (16MB)
0 0 0 0 1 0 0 0 08
x4 (32MB)
0 0 0 0 0 1 0 0 04
0 0 0 0 0 0 0 0 00
REV. 0
0 0 0 0 0 0 0 0 00
16MB -5 (EDO)
0
0
1
1
1
0
1
0 3A
16MB -6 (EDO)
0
1
0
0
0
1
1
0 46
16MB -6 (FPM)
0
1
0
0
0
1
0
1 45
32MB -5 (EDO)
0
0
1
1
0
0
1
1 33
32MB -6 (EDO)
0
0
1
1
1
1
1
1 3F
32MB -6 (FPM)
0
0
1
1
1
1
1
0 3E
64 MANUFACTURER’S JEDEC ID CODE
MICRON
0 0 1 0 1 1 0 0 2C
65-71 MANUFACTURER’S JEDEC CODE (CONT.)
1 1 1 1 1 1 1 1 FF
72 MANUFACTURING LOCATION
0 0 0 0 0 0 0 1 01
0 0 0 0 0 0 1 0 02
0 0 0 0 0 0 1 1 03
0 0 0 0 0 1 0 0 04
73-90 MODULE PART NUMBER (ASCII)
91 PCB IDENTIFICATION CODE
x x x x x x x x xx
1 0 0 0 0 0 0 0 1 01
2 0 0 0 0 0 0 1 0 02
92 IDENTIFICATION CODE (CONT.)
3 0 0 0 0 0 0 1 1 03
4 0 0 0 0 0 1 0 0 04
0 0 0 0 0 0 0 0 0 00
93 YEAR OF MANUFACTURE IN BCD
x x x x x x x x xx
94 WEEK OF MANUFACTURE IN BCD
95-98 MODULE SERIAL NUMBER
99-125 MANUFACTURE SPECIFIC DATA (RSVD)
x x x x x x x x xx
x x x x x x x x xx
–––––––––
NOTE:
1. “1”/“0”: Serial Data, “driven to HIGH”/“driven to LOW.”
2. x = Variable Data.
2, 4 Meg x 72 Nonbuffered DRAM DIMMs
DM60.p65 – Rev. 6/98
7 Micron Technology, Inc., reserves the right to change products or specifications without notice.
©1998, Micron Technology, Inc.

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부품번호상세설명 및 기능제조사
MT18LD472A

(MT18LD272A / MT18LD472A) NONBUFFERED DRAM DIMMs

Micron Technology
Micron Technology

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