EP1S20F780I6N Altera, EP1S20F780I6N Datasheet - Page 394
EP1S20F780I6N
Manufacturer Part Number
EP1S20F780I6N
Description
IC STRATIX FPGA 20K LE 780-FBGA
Manufacturer
Altera
Series
Stratix®r
Specifications of EP1S20F780I6N
Number Of Logic Elements/cells
18460
Number Of Labs/clbs
1846
Total Ram Bits
1669248
Number Of I /o
586
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
780-FBGA
Family Name
Stratix
Number Of Logic Blocks/elements
18460
# I/os (max)
586
Frequency (max)
450.05MHz
Process Technology
0.13um (CMOS)
Operating Supply Voltage (typ)
1.5V
Logic Cells
18460
Ram Bits
1669248
Operating Supply Voltage (min)
1.425V
Operating Supply Voltage (max)
1.575V
Operating Temp Range
-40C to 100C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
780
Package Type
FC-FBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EP1S20F780I6N
Manufacturer:
ALTERA
Quantity:
3 000
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Read-During-Write Operation at the Same Address
2–26
Stratix Device Handbook, Volume 2
When using byte enables in true dual-port RAM mode, the outputs for
the masked bytes on the same port are unknown. (See
page
Figure 2–15. Same-Port Read-During-Write Functionality
Note to
(1)
Mixed-Port Read-During-Write Mode
This mode is used when a RAM in simple or true dual-port mode has one
port reading and the other port writing to the same address location with
the same clock.
The READ_DURING_WRITE_MODE_MIXED_PORTS parameter for M512
and M4K memory blocks determines whether to output the old data at
the address or a “don’t care” value. Setting this parameter to OLD_DATA
outputs the old data at that address. Setting this parameter to DONT_CARE
outputs a “don’t care” or unknown value. See
sample functional waveforms showing this operation. These figures
assume that the outputs are not registered.
The DONT_CARE setting allows memory implementation in any TriMatrix
memory block. The OLD_DATA setting restricts memory implementation
to only M512 or M4K memory blocks. Selecting DONT_CARE gives the
compiler more flexibility when placing memory functions into TriMatrix
memory.
Outputs are not registered.
2–6.) The non-masked bytes are read out as shown in
Figure
2–15:
data_out
data_in
inclock
wren
Old
A
A
Figures 2–16
B
Note (1)
Figure 2–1 on
Altera Corporation
Figure
and
July 2005
2–17
2–15.
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