LFE2-12E-5TN144C Lattice, LFE2-12E-5TN144C Datasheet - Page 29
LFE2-12E-5TN144C
Manufacturer Part Number
LFE2-12E-5TN144C
Description
FPGA - Field Programmable Gate Array 12K LUTs 93 I/O DSP 1.2V -5 Spd
Manufacturer
Lattice
Datasheet
1.LFE2-12SE-6FN256C.pdf
(389 pages)
Specifications of LFE2-12E-5TN144C
Number Of Macrocells
12000
Number Of Programmable I/os
93
Data Ram Size
226304
Supply Voltage (max)
1.26 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Supply Voltage (min)
1.14 V
Package / Case
TQFP-144
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFE2-12E-5TN144C
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
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Lattice Semiconductor
MULTADDSUBSUM sysDSP Element
In this case, the operands A0 and B0 are multiplied and the result is added/subtracted with the result of the multi-
plier operation of operands A1 and B1. Additionally the operands A2 and B2 are multiplied and the result is added/
subtracted with the result of the multiplier operation of operands A3 and B3. The result of both addition/subtraction
are added in a summation block. The user can enable the input, output and pipeline registers. Figure 2-26 shows
the MULTADDSUBSUM sysDSP element.
Figure 2-26. MULTADDSUBSUM
Clock, Clock Enable and Reset Resources
Global Clock, Clock Enable and Reset signals from routing are available to every DSP block. Four Clock, Reset
and Clock Enable signals are selected for the sysDSP block. From four clock sources (CLK0, CLK1, CLK2, CLK3)
Multiplicand A0
Multiplicand A1
Multiplicand A2
Multiplicand A3
Multiplier B0
Multiplier B1
Multiplier B2
Multiplier B3
Signed A
Signed B
Shift Register B Out
Addn0
Addn1
Shift Register B In
n
n
n
n
Register B
Register B
Register B
Register B
Input Data
Input Data
Input Data
Input Data
n
n
n
n
n
n
n
n
n
Register
Register
Register
Register
Input
Input
Input
Input
m
m
m
m
Input Data
Register A
Input Data
Register A
Input Data
Register A
Input Data
Register A
m
m
m
m
m
Shift Register A Out
Shift Register A In
m
m
m
m
Register
Register
Register
Register
Pipeline
Pipeline
Pipeline
Pipeline
m
n
n
n
m
n
m
n
2-26
Multiplier
Multiplier
Multiplier
Multiplier
To Add/Sub1
To Add/Sub0, Add/Sub1
To Add/Sub0, Add/Sub1
To Add/Sub0
Pipeline
Register
Pipeline
Register
x
x
x
x
Register
Register
Pipeline
Pipeline
(default)
(default)
m+n
m+n
(default)
(default)
m+n
m+n
Add/Sub0
Add/Sub1
LatticeECP2/M Family Data Sheet
CLK (CLK0,CLK1,CLK2,CLK3)
CE (CE0,CE1,CE2,CE3)
RST(RST0,RST1,RST2,RST3)
m+n+1
m+n+1
SUM
m+n+2
m+n+2
Architecture
Output
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