FB-DIMM Memory Module Pinout and Description, Fully-Buffered DIMM

FBDIMM Memory Module Pinout with Descriptions

FB-DIMM Pinout

Fully-Buffered DIMM

Fully-Buffered DIMM [FBDIMM, or FB-DIMM] utilizes the JEDEC standard for DDR2 [DDR II] SDRAM. This page contains the pinout for FB-DIMM Memory Module, refer to the general memory modules page for a more complete listing of different types of memory modules, module manufactures, pinouts and descriptions.

**FB-DIMM Pin Out**
Pin Name	Pin Number
PN0 - PN13	22, 25, 28, 31, 34, 37, 40, 48, 51, 54, 57, 60, 63, 66
/PN0 - /PN13	23, 26, 29, 32, 35, 38, 41, 49, 52, 55, 58, 61, 64, 67
PS0 - PS9	70, 73, 76, 79, 82, 90, 93, 96, 99, 102
/PS0 - /PS9	71, 74, 77, 80, 83, 91, 94, 97, 100, 103
/Reset	17
SA0 - SA2	118, 239, 240
SCK	228
/SCK	229
SCL	120
/SCL	119
SN0 - SN13	142, 145, 148, 151, 154, 157, 171, 174, 177, 180, 183, 160, 186, 168
/SN0 - /SN13	143, 146, 149, 152, 155, 158, 161, 169, 172, 175, 178, 181, 184, 187
SS0 - SS9	190, 193, 196, 199, 202, 213, 216, 219, 222, 210
/SS0 - /SS9	191, 194, 197, 200, 203, 214, 217, 220, 223, 211
DNU/M_Test	137
RFU	19, 20, 44, 45, 86, 87, 105, 106, 139, 140, 164, 165, 206, 207, 225, 226
Vcc	9, 10, 12, 13, 129, 130, 132, 133
VDD	1, 2, 3, 5, 6, 7, 108, 109, 111, 112, 113, 115, 116, 121, 122, 123, 125, 126, 127, 231, 232, 233, 235, 236
VDDSPD	238
VID0 - VID1	16, 136
VSS	4, 8, 11, 14, 18, 21, 24, 27, 30, 33, 36, 39, 42, 43, 46, 47, 50, 53, 56, 59, 62, 65, 68, 69, 72, 75, 78, 81, 84, 85, 88, 89, 92, 95, 98, 101, 104, 107, 110, 114, 124, 128, 131, 134, 138, 141, 144, 147, 150, 153, 156, 159, 162, 163, 166, 167, 170, 173, 176, 179, 182, 185, 188, 189, 192, 195, 198, 201, 204, 205, 208, 209, 212, 215, 218, 221, 224, 227, 230, 234
VTT	15, 117, 135, 237

The FBDIMM board size is 133.5mm x 30.5mm with 240 fingers.
The key is 8mm right of center [or 74.68mm from left side], differing from Registered DIMM modules at 4mm right of center.

FB-DIMM Speed offerings include 533Mbps [DDR2-533], 667Mbps [DDR2-667], and 800Mbps [DDR2-800].

The electrical interfaces used by memory modules which include LVTTL, SSTL, and HSTL and others are listed on the IC Bus page. Memory chips/ Memory IC manufacturers are listed on the Memory IC page. Back to the main FB-DIMM Memory Module page.

DDR: Double Data Rate
DIMM: Dual In-Line Memory Module
DRAM: Dynamic Random Access Memory
FB-DIMM: Fully-Buffered DIMM

Electronic Engineering Key words: FB-DIMM, FBDIMM, Fully-Buffered DIMM, Board Size, IC Bus Standard, Integrated Circuit Bus, Chip Bus, Chip-to-Chip Bus, micro-processor [uP] buses, Microcomputer Bus, Microprocessor, Memory Busses, Peripheral chip, Memory, Specification, Spec, Interface, IC, Physical Interface, Description, DIMM, DDR-SDRAM, Pin Outs, Manufacturers.

DIMM Sockets; DIMM/SIMM Socket Manufacturers.


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