EP1S20F484C6N Altera, EP1S20F484C6N Datasheet - Page 452
![IC STRATIX FPGA 20K LE 484-FBGA](/photos/6/72/67258/544-484-fbga_sml.jpg)
EP1S20F484C6N
Manufacturer Part Number
EP1S20F484C6N
Description
IC STRATIX FPGA 20K LE 484-FBGA
Manufacturer
Altera
Series
Stratix®r
Datasheet
1.EP1S10F484I6N.pdf
(864 pages)
Specifications of EP1S20F484C6N
Number Of Logic Elements/cells
18460
Number Of Labs/clbs
1846
Total Ram Bits
1669248
Number Of I /o
361
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
484-FBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
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Part Number:
EP1S20F484C6N
Manufacturer:
ALTERA
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Stratix & Stratix GX I/O Banks
4–24
Stratix Device Handbook, Volume 2
Non-Voltage-Referenced Standards
Each Stratix I/O bank has its own VCCIO pins and supports only one
V
support any number of input signals with different I/O standard
assignments, as shown in
For output signals, a single I/O bank can only support non-voltage-
referenced output signals driving at the same voltage as V
I/O bank can only have one V
value for non-voltage referenced signals. For example, an I/O bank with
a 2.5-V V
HyperTransport technology inputs and outputs, and 3.3-V LVCMOS
inputs (not output or bidirectional pins).
1
Voltage-Referenced Standards
To accommodate voltage-referenced I/O standards, each Stratix I/O
bank supports multiple VREF pins feeding a common VREF bus. The
number of available VREF pins increases as device density increases. If
these pins are not used as VREF pins, they can not be used as generic I/O
pins.
Notes to
(1)
(2)
3.3 V
2.5 V
1.8 V
1.5 V
Table 4–5. Acceptable Input Levels for LVTTL/LVCMOS
CCIO
Bank V
Because the input signal will not drive to the rail, the input buffer does not
completely shut off, and the I/O current will be slightly higher than the default
value.
These input values overdrive the input buffer, so the pin leakage current will be
slightly higher than the default value.
, either 1.5, 1.8, 2.5 or 3.3 V. A Stratix I/O bank can simultaneously
Table
If the output buffer overdrives the input buffer, you must turn
on the Allow voltage overdrive for LVTTL/LVCMOS option in
the Quartus II software. To see this option, click the Device &
Pin Options button in the Device page of the Settings dialog
box (Assignments menu). Then click the Pin Placement tab in
the Device & Pin Options dialog box.
CCIO
CCIO
setting can support 2.5-V LVTTL inputs and outputs,
4–5:
v
v
3.3 V
v
v
(2)
(2)
Table
CCIO
4–5.
Acceptable Input Levels
v
v
2.5 V
value, so it can only drive out that one
v
v
(2)
(2)
1.8 V
v
v
Altera Corporation
CCIO
. A Stratix
June 2006
v
1.5 V
v
(1)
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