-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathfaq.html
More file actions
391 lines (360 loc) · 19.6 KB
/
faq.html
File metadata and controls
391 lines (360 loc) · 19.6 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="refresh" content="0; URL=http://www.fmchub.com/faq/">
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta http-equiv="language" content="EN">
<meta name="author" content="I A M E L E C T R O N I C">
<meta name="keywords" content="FPGA, mezzanine, card, cards, FMC, LPC, HPC, FMCHUB, ANSI, VITA, template, PCB, FAQ, EEPROM, FRU" />
<meta name="description" content="FMCHUB - FAQ - A compilation of practical explanations about ANSI/VITA 57.1-2008 (R2010), FPGA Mezzanine Card (FMC) Standard." />
<title>FMCHUB - FAQ - FPGA MEZZANINE CARDs</title>
<!--<link rel="icon" href="../../favicon.ico">-->
<!-- Bootstrap core CSS -->
<link href="./dist/css/bootstrap.min.css" rel="stylesheet">
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<link href="./assets/css/ie10-viewport-bug-workaround.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="./jumbotron-narrow.css" rel="stylesheet">
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-83790429-1', 'auto');
ga('send', 'pageview');
</script>
<!-- START BANNER CODE
<div style="background-color:#DCE0E3;width:219px;height:417px;position:fixed;right:0.5em;bottom:0.5em;border:solid 1px #034752 ;">
<a href="https://www.kickstarter.com/projects/1851501326/tiny-5x5cm2-fpga-board-with-xilinx-artix-7" target="_newkickstartcampaignbanner">
<img width="219px" height="417px" alt="***** Support us on kickstarter ***** Tiny 5x5cm FPGA board with Xilinx Artix-7" src="http://www.iamelectronic.com/products/T0005_Artix-7_FPGA_Module/kickstarter_fpga_campaign_banner/tiny_fpga_module_xilinx_artix_kickstarter_banner.jpg"/ border="0">
</a>
</div>
END BANNER CODE //-->
<div class="container">
<div class="header clearfix">
<nav>
<ul class="nav nav-pills pull-right">
<li role="presentation"><a href="index.html">Projects</a></li>
<li role="presentation" class="active"><a href="faq.html">FAQ</a></li>
<li role="presentation"><a href="license.html">License</a></li>
<li role="presentation"><a href="about.html">About</a></li>
</ul>
</nav>
<h3 class="text-muted">FMCHUB - FAQ</h3>
</div>
<div class="jumbotron" style="background-image: url("./img/fmc_breakout.jpg"); background-size: 100%;">
<div style="background: rgba(100, 100, 100, .6)"><h1 style="color:white">FMC > FAQ</h1></div>
<div style="background: rgba(100, 100, 100, .6)""><p class="lead" style="color:white"></br>A compilation of practical explanations about</br>ANSI/VITA 57.1-2008 (R2010), FPGA Mezzanine Card (FMC) Standard</br></br></div>
</br></br></div>
<a href="#fmc_form_factors"><h4>1. What <b>form factors</b> are specified by ANSI/VITA-57.1?</h4></a>
<a href="#fmc_connectors"><h4>2. What <b>types of connectors</b> can be used?</h4></a>
<a href="#molex_samtec_fmc_connectors"><h4>3. What's the difference between <b>Molex</b> and <b>Samtec FMC connectors</b>?</h4></a>
<a href="#fmc_eeprom"><h4>4. What <b>EEPROM</b> can be used for FRU information storage?</h4></a>
<a href="#fmc_pinout"><h4>5. What is the <b>pinout of the FMC connector</b>?</h4></a>
<a href="#fmc_fru"><h4>6. What is a <b>FRU</b>?</h4></a>
<a href="#fmc_solder_connector"><h4>7. How can I <b>solder</b> the FMC connector?</h4></a>
<a name="fmc_form_factors"></a><h3>1. What form factors are specified by ANSI/VITA-57.1?</h3>
<p>Firstly, FMC modules are categorized by their width. Single width (69 mm) and double width (139 mm) mezzanine modules are specified. Secondly, they are divided in
subtypes according to their cooling layout (air cooled or conduction cooled), mounting style (commercial grade or ruggedized) and <a href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_REGIONS.pdf" target="_newregionspdf">module regions</a> (optional <a href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_REGIONS.jpg" target="_newregion1">region 1</a> for front panel I/O, <a href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_REGIONS.jpg" target="_newregion2">region 2</a> for components,
and optional <a href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_REGIONS.jpg" target="_newregion3">region 3</a> for rear extension). Not all combinations are possible, a list of suitable form factors is given below.
</p>
<table class="table">
<thead><tr>
<th>Width</th>
<th>Mounting</th>
<th>Cooling</th>
<th>Regions</th>
<th>Dimensions (L x W)</th>
<th>Drawings</th>
</tr></thead>
<tbody>
<tr>
<td>Single</td>
<td>Commercial grade</td>
<td>Air cooled</td>
<td>2</td>
<td>71.3 mm x 69.0 mm</td>
<td>
<a target="_newmechsingle2" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_LPC_R2_COMMERCIAL_AIR_COOLED.pdf">mechanical layout</a><br>
<a target="_newsingle2" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_LPC_R2_COMMERCIAL_AIR_COOLED.jpg">3D PCB image</a>
</td>
</tr>
<tr>
<td>Single</td>
<td>Commercial grade</td>
<td>Air cooled</td>
<td>1, 2</td>
<td>76.5 mm x 69.0 mm</td>
<td>
<a target="_newmechsingle12" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_LPC_R1R2_COMMERCIAL_AIR_COOLED.pdf">mechanical layout</a><br>
<a target="_newsingle12" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_LPC_R1R2_COMMERCIAL_AIR_COOLED.jpg">3D PCB image</a>
</td>
</tr>
<tr>
<td>Single</td>
<td>Commercial grade</td>
<td>Air cooled</td>
<td>2, 3</td>
<td>78.8 mm x 69.0 mm</td>
<td>
<a target="_newmechsingle23" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_LPC_R2R3_COMMERCIAL_AIR_COOLED.pdf">mechanical layout</a><br>
<a target="_newsingle23" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_LPC_R2R3_COMMERCIAL_AIR_COOLED.jpg">3D PCB image</a>
</td>
</tr>
<tr>
<td>Single</td>
<td>Commercial grade</td>
<td>Air cooled</td>
<td>1, 2, 3</td>
<td>84.0 mm x 69.0 mm</td>
<td>
<a target="_newmechsingle123" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_LPC_R1R2R3_COMMERCIAL_AIR_COOLED.pdf">mechanical layout</a><br>
<a target="_newsingle123" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_COMMERCIAL/raw/master/Drawings/FMC_SINGLE_LPC_R1R2R3_COMMERCIAL_AIR_COOLED.jpg">3D PCB image</a>
</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>Single</td>
<td>Ruggedized</td>
<td>Conduction cooled</td>
<td>2, 3</td>
<td>78.8 mm x 69.0 mm</td>
<td>
<a target="_newrmechsingle23" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_RUGGEDIZED/raw/master/Drawings/FMC_SINGLE_LPC_R2R3_RUGGEDIZED_CONDUCTION_COOLED.pdf">mechanical layout</a><br>
<a target="_newrsingle23" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_RUGGEDIZED/raw/master/Drawings/FMC_SINGLE_LPC_R2R3_RUGGEDIZED_CONDUCTION_COOLED.jpg">3D PCB image</a>
</td>
</tr>
<tr>
<td>Single</td>
<td>Ruggedized</td>
<td>Conduction cooled</td>
<td>1, 2, 3</td>
<td>84.0 mm x 69.0 mm</td>
<td>
<a target="_newrmechsingle123" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_RUGGEDIZED/raw/master/Drawings/FMC_SINGLE_LPC_R1R2R3_RUGGEDIZED_CONDUCTION_COOLED.pdf">mechanical layout</a><br>
<a target="_newrsingle123" href="https://github.com/FMCHUB/FMC_SINGLE_LPC_RUGGEDIZED/raw/master/Drawings/FMC_SINGLE_LPC_R1R2R3_RUGGEDIZED_CONDUCTION_COOLED.jpg">3D PCB image</a>
</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
</tbody>
<tr>
<td>Double</td>
<td>...</td>
<td>...</td>
<td>...</td>
<td>... mm x 139.0 mm</td>
<td>
<a target="_newmechdouble123" href="#">coming</a><br>
<a target="_newdouble123" href="#">soon</a>
</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
<!--Commercial grade and ruggedized form factor, each has region 1 2 3, 3 is always demanded by ruggedized form factor, ... example pictures//-->
<a name="fmc_connectors"></a><h3>2. What types of connectors can be used?</h3>
<p>The FMC standard specifies a <a target="fmcpinout" href="https://FMCHUB.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html">low-pin count (LPC) connector</a> with 160 pins or <a target="fmcpinout" href="https://FMCHUB.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html">high-pin count (HPC) connector</a> with 400 pins.
An <a target="fmcpinout" href="https://FMCHUB.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html">LPC connector</a> on mezzanine card side also fits into an <a target="fmcpinout" href="https://FMCHUB.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html">HPC connector</a> on baseboard side. Electrical signals are also compatible, as the <a target="fmcpinout" href="https://FMCHUB.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html#lpc_pinout">LPC pinout</a> is a reduced variant of the <a target="fmcpinout" href="https://FMCHUB.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html#hpc_pinout">HPC pinout</a>. At the moment,
there are two major manufacturers for the connectors on baseboard (female) and mezzanine card side (male), <a href="http://www.samtec.com" target="_samtec">Samtec</a> (<a href="https://wwws.samtec.com/standards/vita.aspx#vita57" target="_samtecfmclist">Samtec FMC connectors</a>) and <a href="http://www.molex.com" target="_molex">Molex</a> (<a href="http://www.molex.com/molex/products/family?key=searay" target="_molexsearay">Molex FMC connectors</a>). The variants are listed in the table below.
<b>The parts marked in bold are most commonly used in ANSI/VITA 57.1 FMC systems.</b></p>
<table class="table">
<thead><tr>
<th>ANSI/VITA-57 FMC connector</th>
<th>Samtec FMC connector</th>
<th>Molex FMC connector</th>
<th>Description</th>
<th>Mated stack height</th>
</tr></thead>
<tbody>
<tr>
<td><b>CC-LPC-10</b></td>
<td><b><a target="_new7" href="https://octopart.com/search?q=ASP-134603-01">ASP-134603-01</a></b></td>
<td><b><a target="_new8" href="https://octopart.com/search?q=45971-4305">45971-4305</a></b></td>
<td><b>female, baseboard side, Low-pin count (LPC), 160 I/O, tin-lead</b></td>
<td><br></td>
</tr>
<tr>
<td>CC-LPC-10L</td>
<td><a target="_new1" href="https://octopart.com/search?q=ASP-127796-01">ASP-127796-01</a></td>
<td><a target="_new2" href="https://octopart.com/search?q=45971-4307">45971-4307</a></td>
<td>female, baseboard side, Low-pin count (LPC), 160 I/O, tin-lead</td>
<td><br></td>
</tr>
<tr>
<td><b>CC-HPC-10</td>
<td><b><a target="_new5" href="https://octopart.com/search?q=ASP-134486-01">ASP-134486-01</a></b></td>
<td><b><a target="_new6" href="https://octopart.com/search?q=45971-4315">45971-4315</a></b></td>
<td><b>female, baseboard side, High-pin count (HPC), 400 I/O, lead-free</b></td>
<td><br></td>
</tr>
<tr>
<td>CC-HPC-10L</td>
<td><a target="_new3" href="https://octopart.com/search?q=ASP-134485-01">ASP-134485-01</a></td>
<td><a target="_new4" href="https://octopart.com/search?q=45971-4317">45971-4317</a></td>
<td>female, baseboard side, High-pin count (HPC), 400 I/O, tin-lead</td>
<td><br></td>
</tr>
<tr>
<td>MC-LPC-8.5</td>
<td><a target="_new15" href="https://octopart.com/search?q=ASP-134606-01">ASP-134606-01</a></td>
<td><a target="_new16" href="https://octopart.com/search?q=45970-4105">45970-4105</a></td>
<td>male, mezzanine card side, Low-pin count (LPC), 160 I/O, lead-free</td>
<td>8.5 mm</font></td>
</tr>
<tr>
<td>MC-LPC-8.5L</td>
<td><a target="_new13" href="https://octopart.com/search?q=ASP-134605-01">ASP-134605-01</a></td>
<td><a target="_new14" href="https://octopart.com/search?q=45970-4107">45970-4107</a></td>
<td>male, mezzanine card side, Low-pin count (LPC), 160 I/O, tin-lead</td>
<td>8.5 mm</td>
</tr>
<tr>
<td>MC-HPC-8.5</td>
<td><a target="_new11" href="https://octopart.com/search?q=ASP-134602-01">ASP-134602-01</a></td>
<td><a target="_new12" href="https://octopart.com/search?q=45970-4115">45970-4115</a></td>
<td>male, mezzanine card side, High-pin count (HPC), 400 I/O, lead-free</td>
<td>8.5 mm</td>
</tr>
<tr>
<td>MC-HPC-8.5L</td>
<td><a target="_new9" href="https://octopart.com/search?q=ASP-134601-01">ASP-134601-01</a></td>
<td><a target="_new10" href="https://octopart.com/search?q=45970-4117">45970-4117</a></td>
<td>male, mezzanine card side, High-pin count (HPC), 400 I/O, tin-lead</td>
<td>8.5 mm</font></td>
</tr>
<tr>
<td><b>MC-LPC-10</b></td>
<td><b><a target="_new23" href="https://octopart.com/search?q=ASP-134604-01">ASP-134604-01</a></b></td>
<td><b><a target="_new24" href="https://octopart.com/search?q=45970-4305">45970-4305</a></b></td>
<td><b>male, mezzanine card side, Low-pin count (LPC), 160 I/O, lead-free</b></td>
<td><b>10 mm</b></td>
</tr>
<tr>
<td>MC-LPC-10L</td>
<td><a target="_new17" href="https://octopart.com/search?q=ASP-127797-01">ASP-127797-01</a></td>
<td><a target="_new18" href="https://octopart.com/search?q=45970-4307">45970-4307</a></td>
<td>male, mezzanine card side, Low-pin count (LPC), 160 I/O, tin-lead</td>
<td>10 mm</td>
</tr>
<tr>
<td><b>MC-HPC-10</b></td>
<td><b><a target="_new21" href="https://octopart.com/search?q=ASP-134488-01">ASP-134488-01</a></b></td>
<td><b><a target="_new22" href="https://octopart.com/search?q=45970-4315">45970-4315</a></b></td>
<td><b>male, mezzanine card side, High-pin count (HPC), 400 I/O, lead-free</b></td>
<td><b>10 mm</b></td>
</tr>
<tr>
<td>MC-HPC-10L</td>
<td><a target="_new19" href="https://octopart.com/search?q=ASP-134487-01">ASP-134487-01</a></td>
<td><a target="_new20" href="https://octopart.com/search?q=45970-4317">45970-4317</a></td>
<td>male, mezzanine card side, High-pin count (HPC), 400 I/O, tin-lead</td>
<td>10 mm</td>
</tr>
</tbody>
</table>
<a name="molex_samtec_fmc_connectors"></a><h3>3. What's the difference between Molex and Samtec FMC connectors?</h3>
<p>Molex and Samtec FMC connectors are intermateable and interchangeable. A product intermateability specification is available from Molex <a href="http://www.molex.com/pdm_docs/ps/PS-45970-002-001.pdf" target="_new_samtec_molex_inter1">here</a> and from Samtec <a href="http://suddendocs.samtec.com/testreports/tc085-1567-1568reportrev1.pdf" target="_new_samtec_molex_inter2">here</a>. However, the FMC connectors for mezzanine card side differ in their appearance. The picture below shows Molex FMC connectors and Samtec FMC connectors. We have received the FMC connectors as free samples from Molex and Samtec.<a href="./img/molex_samtec_fmc_connectors_mc.jpg" target="_new_molex_samtec_fmc_connectors" alt="Molex and Samtec FMC connectors"><img src="./img/molex_samtec_fmc_connectors_mc.jpg" alt="Molex and Samtec FMC connectors" width="100%"/></a></p>
<a name="fmc_eeprom"></a><h3>4. What EEPROM can be used for FRU information storage?</h3>
<p>In general, any serial EEPROM with I2C interface can be used. It should be at least 256 bytes in size. The most significant bits of the 7-bit I2C address must be 0b1010xxx, where the two least significant bits are determined by the <a target="fmcpinout" href="https://FMCHUB.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html">GA[1:0] pins</a> of the <a target="fmcpinout" href="https://FMCHUB.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html">FMC connector</a>.
</br>GA[0] is connected to address bit[1] and GA[1] is connected to address bit[0]. Address bit [2] of the 7-bit address[6:0] indicates the addressing width.
</br>EEPROMs with a size of 256 Bytes or lower use one-byte addresses, which should be masked with a low address-bit[2]. Larger EEPROMS use two-byte addresses, which is masked with a high address-bit[2].
</br>For example, the address 0b1010001 can be used for an EEPROM with 256 Bytes (GA[1:0] = 0b10). The address 0b101010101 can be used accordingly for larger EEPROMs with two-byte addresses.
</br>You can use the <a href="https://fmchub.github.io/projects/FMC_FRU_EEPROM_PROGRAMMER/Datasheet/FMC_FRU_EEPROM_PROGRAMMER_datasheet.html" target="_newfmcprogrammer">FMC FRU EEPROM Programmer</a> to verify and configure an I2C EEPROM.</br>
</br>Here is a list of commonly used memory chips we have seen on several FMC modules.
</p>
<table class="table">
<thead><tr>
<th>Manufacturer</th>
<th>Part number</th>
<th>Description</th>
<th>Memory size</th>
</tr></thead>
<tbody><tr>
<td>Microchip</td>
<td><a target="_new25" href="https://octopart.com/search?q=AT24C02D">AT24C02D</a></td>
<td>2k I2C Serial EEPROM</td>
<td>256 x 8bit</td>
</tr>
<tr>
<td>STMicroelectronics</td>
<td><a target="_new26" href="https://octopart.com/search?q=M24C02">M24C02</a></td>
<td>2k I2C Serial EEPROM</td>
<td>256 x 8bit</td>
</tr>
<tr>
<td>Microchip</font></td>
<td><a target="_new27" href="https://octopart.com/search?q=24AA64">24AA64</a></td>
<td>64k I2C Serial EEPROM</td>
<td>8K x 8bit</td>
</tr>
<tr>
<td>Microchip</font></td>
<td><a target="_new28" href="https://octopart.com/search?q=24LC64">24LC64</a></td>
<td>64k I2C Serial EEPROM</td>
<td>8K x 8bit</td>
</tr>
<tr>
<td>Microchip</font></td>
<td><a target="_new29" href="https://octopart.com/search?q=AT24C256C">AT24C256C</a></td>
<td>256k I2C Serial EEPROM</td>
<td>32K x 8bit</td>
</tr>
<tr>
<td>On Semiconductor</font></td>
<td><a target="_new30" href="https://octopart.com/search?q=CAT24C256">CAT24C256</a></td>
<td>256k I2C Serial EEPROM</td>
<td>32K x 8bit</td>
</tr>
<tr>
<td>Microchip</font></td>
<td><a target="_new31" href="https://octopart.com/search?q=AT24C512C">AT24C512C</a></td>
<td>512k I2C Serial EEPROM</td>
<td>64K x 8bit</td>
</tr>
</tbody>
</table>
<a name="fmc_pinout"></a><h3>5. What is the pinout of the FMC connector?</h3>
<p>The <a href="https://fmchub.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html" target="_newfmcpinout">FMC connector Pin Assignments</a> are described <a href="https://fmchub.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html" target="_newfmcpinout">here</a>.</p>
<a name="fmc_fru"></a><h3>6. What is a FRU?</h3>
<p>coming soon</p>
<a name="fmc_solder_connector"></a><h3>7. How can I solder the FMC connector?</h3>
<p>coming soon</p>
<!-- Mechanical components (bezel etc), Reference Dessign, ...//-->
<footer class="footer">
<p>© 2020 F M C H U B . O R G, ( i n f o @ f m c h u b . o r g )</p>
</footer>
</div> <!-- /container -->
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<script src="./assets/js/ie10-viewport-bug-workaround.js"></script>
</body>
</html>