mt18vddt12872 Micron Semiconductor Products, mt18vddt12872 Datasheet - Page 5
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mt18vddt12872
Manufacturer Part Number
mt18vddt12872
Description
256mb, 512mb, 1gb, 2gb X72, Ecc, Sr 184-pin Ddr Sdram Rdimm
Manufacturer
Micron Semiconductor Products
Datasheet
1.MT18VDDT12872.pdf
(39 pages)
Table 5:
Pin numbers may not correlate with symbols; refer to Pin Assignment Tables on page 3 for more information
pdf: 09005aef808a331f, source: 09005aef80858037
DD18C32_64_128_256x72G.fm - Rev. E 9/04 EN
58, 66, 74, 81, 89, 93, 100,
163, 167 (256MB, 512MB,
23, 24, 28, 31, 33, 35, 39,
40, 53, 55, 57, 60, 61, 64,
68, 69, 72, 73, 79, 80, 83,
84, 87, 88, 94, 95, 98, 99,
15, 22, 30, 54, 62, 77, 96,
105, 106, 109, 110, 114,
117, 121, 123, 126, 127,
131, 133, 146, 147, 150,
151, 153, 155, 161, 162,
165, 166, 170, 171, 174,
104, 112, 128, 136, 143,
3, 11, 18, 26, 34, 42, 50,
116, 124, 132, 139, 145,
9, 16, 17, 71, 75, 76, 82,
2, 4, 6, 8, 12,13, 19, 20,
90, 101, 102, 103, 111,
113, 115 (256MB),158,
7, 38, 46, 70, 85, 108,
156, 164, 172, 180
PIN NUMBERS
175, 178, 179
181, 182, 183
120, 148, 168
152, 160, 176
1GB), 173
184
92
91
1
Pin Descriptions (Continued)
DQ0–DQ63
SYMBOL
SA0–SA2
V
V
SDA
V
V
DDSPD
SCL
V
NC
DD
REF
DD
SS
Q
Output
Output
Supply SSTL_2 reference voltage.
Supply DQ Power Supply: +2.5V ±0.2V.
Supply Power Supply: +2.5V ±0.2V.
Supply Ground.
Supply Serial EEPROM positive power supply: +2.3V to +3.6V.
Input/
Input/
TYPE
Input
Input
—
256MB, 512MB, 1GB, 2GB (x72, ECC, SR)
Data I/Os: Data bus.
Serial Clock for Presence-Detect: SCL is used to synchronize the
presence-detect data transfer to and from the module.
Presence-Detect Address Inputs: These pins are used to
configure the presence-detect device.
Serial Presence-Detect Data: SDA is a bidirectional pin used to
transfer addresses and data into and out of the presence-detect
portion of the module.
No Connect: These pins should be left unconnected.
5
Micron Technology, Inc., reserves the right to change products or specifications without notice.
184-PIN DDR SDRAM RDIMM
DESCRIPTION
©2004 Micron Technology, Inc. All rights reserved.