LFE2-20E-5FN256I Lattice, LFE2-20E-5FN256I Datasheet - Page 39
![no-image](/images/manufacturer_photos/0/3/380/lattice_sml.jpg)
LFE2-20E-5FN256I
Manufacturer Part Number
LFE2-20E-5FN256I
Description
IC FPGA 21KLUTS 193I/O 256FPBGA
Manufacturer
Lattice
Series
ECP2r
Datasheets
1.LFE2-12SE-6FN256C.pdf
(389 pages)
2.LFE3-35EA-8FN672I.pdf
(21 pages)
3.LFE2-20E-5FN256I.pdf
(4 pages)
4.LFE2-20E-5FN256I.pdf
(769 pages)
Specifications of LFE2-20E-5FN256I
Number Of Logic Elements/cells
21000
Number Of Labs/clbs
2625
Total Ram Bits
282624
Number Of I /o
193
Number Of Gates
-
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
256-BGA
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
220-1170
LFE2-20E-5FN256I
Q6411457
LFE2-20E-5FN256I
Q6411457
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFE2-20E-5FN256I
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
- LFE2-12SE-6FN256C PDF datasheet
- LFE3-35EA-8FN672I PDF datasheet #2
- LFE2-20E-5FN256I PDF datasheet #3
- LFE2-20E-5FN256I PDF datasheet #4
- Current page: 39 of 769
- Download datasheet (18Mb)
Lattice Semiconductor
MAC sysDSP Element
In this case, the two operands, A and B, are multiplied and the result is added with the previous accumulated value.
This accumulated value is available at the output. The user can enable the input and pipeline registers, but the out-
put register is always enabled. The output register is used to store the accumulated value. The Accumulators in the
DSP blocks in the LatticeECP2/M family can be initialized dynamically. A registered overflow signal is also avail-
able. The overflow conditions are provided later in this document. Figure 2-24 shows the MAC sysDSP element.
Figure 2-24. MAC sysDSP
Multiplicand
Multiplier
Signed A
Signed B
Addn
Accumsload
Serial Register B in
n
Input Data
Register B
n
n
SROB
n
Register
Register
Register
Register
Input
Input
Input
Input
m
Input Data
Register A
m
n
SROA
Serial Register A in
m
Register
Register
Register
Register
Pipeline
Pipeline
Pipeline
Pipeline
m
n
2-24
To Accumulator
To Accumulator
To Accumulator
To Accumulator
Multiplier
Register
Pipeline
x
(default)
m+n
Accumulator
LatticeECP2/M Family Data Sheet
CLK (CLK0,CLK1,CLK2,CLK3)
RST(RST0,RST1,RST2,RST3)
CE (CE0,CE1,CE2,CE3)
m+n+16
(default)
Preload
(default)
m+n+16
Architecture
Output
Overflow
signal
Related parts for LFE2-20E-5FN256I
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![LFE2-20E-5FN484C](/photos/16/14/161499/landingpagelatticeecp2m_tmb.jpg)
Part Number:
Description:
FPGA - Field Programmable Gate Array 21K LUTs 331 I/O DSP 1.2V -5
Manufacturer:
Lattice
Datasheet:
![LFE2-20E-5QN208C](/photos/19/4/190418/4732016_tmb.jpg)
Part Number:
Description:
IC, LATTICEECP2 FPGA, 420MHZ, QFP-208
Manufacturer:
LATTICE SEMICONDUCTOR
Datasheet:
![LFE2-20E-5F484C](/images/manufacturer_photos/0/3/380/lattice_tmb.jpg)
Part Number:
Description:
FPGA - Field Programmable Gate Array 21K LUTs 331 I/O DSP 1.2V -5
Manufacturer:
Lattice
![LFE2-20E-5F672C](/images/manufacturer_photos/0/3/380/lattice_tmb.jpg)
Part Number:
Description:
FPGA - Field Programmable Gate Array 21K LUTs 402 I/O DSP 1.2V -5
Manufacturer:
Lattice
![LFE2-20E-5F256I](/images/manufacturer_photos/0/3/380/lattice_tmb.jpg)
Part Number:
Description:
FPGA - Field Programmable Gate Array 21K LUTs 193 I/O DSP 1.2V -5 I
Manufacturer:
Lattice
![LFE2-20E-5F672I](/images/manufacturer_photos/0/3/380/lattice_tmb.jpg)
Part Number:
Description:
FPGA - Field Programmable Gate Array 21K LUTs 402 I/O DSP 1.2V -5 I
Manufacturer:
Lattice
![LFE2-20E-5Q208C](/images/manufacturer_photos/0/3/380/lattice_tmb.jpg)
Part Number:
Description:
FPGA - Field Programmable Gate Array 21K LUTs 131 I/O DSP 1.2V -5
Manufacturer:
Lattice
![LFE2-20E-5Q208I](/images/manufacturer_photos/0/3/380/lattice_tmb.jpg)
Part Number:
Description:
FPGA - Field Programmable Gate Array 21K LUTs 131 I/O DSP 1.2V -5 I
Manufacturer:
Lattice
![LFE2-20E-6FN672C](/images/manufacturer_photos/0/3/381/lattice_semiconductor_tmb.jpg)
Part Number:
Description:
IC, LATTICEECP2 FPGA, 420MHZ, FPBGA-672
Manufacturer:
LATTICE SEMICONDUCTOR
Datasheet:
![LFE2-20E-6QN208C](/photos/19/4/190418/4732016_tmb.jpg)
Part Number:
Description:
IC, LATTICEECP2 FPGA, 420MHZ, QFP-208
Manufacturer:
LATTICE SEMICONDUCTOR
Datasheet:
![LFE2-20E-5F256C](/images/manufacturer_photos/0/3/381/lattice_semiconductor_tmb.jpg)
Part Number:
Description:
FPGA LatticeECP2 Family 21000 Cells 90nm (CMOS) Technology 1.2V 256-Pin FBGA
Manufacturer:
LATTICE SEMICONDUCTOR
Datasheet:
![LFE2-20E-5F484I](/images/manufacturer_photos/0/3/381/lattice_semiconductor_tmb.jpg)
Part Number:
Description:
FPGA LatticeECP2 Family 21000 Cells 90nm (CMOS) Technology 1.2V 484-Pin FBGA
Manufacturer:
LATTICE SEMICONDUCTOR
Datasheet:
![LFE2-20E-5FN484I](/images/manufacturer_photos/0/3/381/lattice_semiconductor_tmb.jpg)
Part Number:
Description:
FPGA LatticeECP2 Family 21000 Cells 90nm (CMOS) Technology 1.2V 484-Pin FBGA
Manufacturer:
LATTICE SEMICONDUCTOR
Datasheet:
![LFE2-20E-6F484I](/images/manufacturer_photos/0/3/381/lattice_semiconductor_tmb.jpg)
Part Number:
Description:
FPGA LatticeECP2 Family 21000 Cells 90nm (CMOS) Technology 1.2V 484-Pin FBGA
Manufacturer:
LATTICE SEMICONDUCTOR
Datasheet:
![LFE2-20E-7FN484C](/images/manufacturer_photos/0/3/381/lattice_semiconductor_tmb.jpg)
Part Number:
Description:
FPGA LatticeECP2 Family 21000 Cells 90nm (CMOS) Technology 1.2V 484-Pin FBGA
Manufacturer:
LATTICE SEMICONDUCTOR
Datasheet: