EP3C55F484C7N Altera, EP3C55F484C7N Datasheet - Page 40
![IC CYCLONE III FPGA 55K 484FBGA](/photos/6/72/67258/544-484-fbga_sml.jpg)
EP3C55F484C7N
Manufacturer Part Number
EP3C55F484C7N
Description
IC CYCLONE III FPGA 55K 484FBGA
Manufacturer
Altera
Series
Cyclone® IIIr
Datasheets
1.EP3C5F256C8N.pdf
(5 pages)
2.EP3C5F256C8N.pdf
(34 pages)
3.EP3C5F256C8N.pdf
(66 pages)
4.EP3C5F256C8N.pdf
(14 pages)
5.EP3C5F256C8N.pdf
(76 pages)
6.EP3C10M164C8N.pdf
(350 pages)
7.EP3C55F484C7N.pdf
(274 pages)
Specifications of EP3C55F484C7N
Number Of Logic Elements/cells
55856
Number Of Labs/clbs
3491
Total Ram Bits
2396160
Number Of I /o
327
Voltage - Supply
1.15 V ~ 1.25 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
484-FBGA
Family Name
Cyclone III
Number Of Logic Blocks/elements
55856
# I/os (max)
327
Frequency (max)
437.5MHz
Process Technology
65nm
Operating Supply Voltage (typ)
1.2V
Logic Cells
55856
Ram Bits
2396160
Operating Supply Voltage (min)
1.15V
Operating Supply Voltage (max)
1.25V
Operating Temp Range
0C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
484
Package Type
FBGA
No. Of Logic Blocks
3491
Family Type
Cyclone III
No. Of I/o's
327
I/o Supply Voltage
3.3V
Operating Frequency Max
437.5MHz
Operating Temperature Range
0°C To +85°C
Rohs Compliant
Yes
For Use With
544-2601 - KIT DEV CYCLONE III LS EP3CLS200544-2411 - KIT DEV NIOS II CYCLONE III ED.
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
Lead Free Status / Rohs Status
Compliant
Other names
544-2509
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- EP3C5F256C8N PDF datasheet
- EP3C5F256C8N PDF datasheet #2
- EP3C5F256C8N PDF datasheet #3
- EP3C5F256C8N PDF datasheet #4
- EP3C5F256C8N PDF datasheet #5
- EP3C10M164C8N PDF datasheet #6
- EP3C55F484C7N PDF datasheet #7
- Current page: 40 of 274
- Download datasheet (6Mb)
3–4
Byte Enable Support
Cyclone III Device Handbook, Volume 1
The Cyclone III device family M9K memory blocks support byte enables that mask
the input data so that only specific bytes of data are written. The unwritten bytes
retain the previous written value. The wren signals, along with the byte-enable
(byteena) signals, control the write operations of the RAM block. The default value
of the byteena signals is high (enabled), in which case writing is controlled only by
the wren signals. There is no clear port to the byteena registers. M9K blocks support
byte enables when the write port has a data width of ×16, ×18, ×32, or ×36 bits.
Byte enables operate in one-hot manner, with the LSB of the byteena signal
corresponding to the least significant byte of the data bus. For example, if
byteena = 01 and you are using a RAM block in ×18 mode, data[8..0] is
enabled and data[17..9] is disabled. Similarly, if byteena = 11, both
data[8..0] and data[17..9] are enabled. Byte enables are active high.
Table 3–2
Table 3–2. byteena for Cyclone III Device Family M9K Blocks
Note to
(1) Any combination of byte enables is possible.
byteena[3..0]
[0] = 1
[1] = 1
[2] = 1
[3] = 1
Table
lists the byte selection.
3–2:
datain
[15..8]
[7..0]
—
—
× 16
datain
[17..9]
[8..0]
—
—
Chapter 3: Memory Blocks in the Cyclone III Device Family
× 18
Affected Bytes
datain
(Note 1)
[23..16]
[31..24]
[15..8]
[7..0]
© December 2009 Altera Corporation
× 32
datain
[26..18]
[35..27]
[17..9]
[8..0]
× 36
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