LFE2-6E-7T144C Lattice, LFE2-6E-7T144C Datasheet - Page 26

• Manufacturer Part Number: LFE2-6E-7T144C
• Description: FPGA - Field Programmable Gate Array 6K LUTs 90 I/O DSP 1.2V -7
• Manufacturer: Lattice

Specifications of LFE2-6E-7T144C

• Number Of I/os: 90
• Maximum Operating Frequency: 420 MHz
• Operating Supply Voltage: 1.2 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFP-144
• Minimum Operating Temperature: 0 C
• Factory Pack Quantity: 300

Lattice Semiconductor
MULTADD 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 A2. The user can enable the input, output and pipeline registers. Figure 2-20
shows the MULTADD sysDSP element.
Figure 2-22. MULTADD
Multiplicand A0
Multiplicand A1
Multiplier B0
Multiplier B1
Signed
Addn
Shift Register B Out
Shift Register B In
n
n
Register B
Register B
Input Data
Input Data
n
n
n
n
n
Register
Register
Input
Input
m
m
Input Data
Register A
Input Data
Register A
m
Shift Register A Out
m
m
Shift Register A In
m
m
Register
Pipeline
Pipeline
Register
Pipe
Pipe
Reg
Reg
m
n
m
n
2-23
To Add/Sub
To Add/Sub
Multiplier
Multiplier
Register
Pipeline
Pipeline
Register
x
x
(default)
(default)
m+n
m+n
Add/Sub
LatticeECP2 Family Data Sheet
CLK (CLK0,CLK1,CLK2,CLK3)
CE (CE0,CE1,CE2,CE3)
RST(RST0,RST1,RST2,RST3)
(default)
m+n+1
(default)
m+n+1
Architecture
Output