LFEC3E-3QN208I Lattice, LFEC3E-3QN208I Datasheet - Page 366

• Manufacturer Part Number: LFEC3E-3QN208I
• Description: IC FPGA 3KLUTS 208PQFP
• Manufacturer: Lattice
• Series: EC3r

Specifications of LFEC3E-3QN208I

• Number Of Logic Elements/cells: 3100
• Number Of Labs/clbs: -
• Total Ram Bits: 56320
• Number Of I /o: 145
• Number Of Gates: -
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 208-BFQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q6377645

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Lattice Semiconductor
LatticeECP-DSP sysDSP Usage Guide
MULTADDSUB Module
The MULTADDSUB GUI configures Multiplier Addition/Subtraction elements to be packed into the primitives
MULT18X18ADDSUB or MULT9X9ADDSUB. The Basic mode, shown in Figure 15-6, consists of one clock
(optional), one clock enable and one reset tied to all registers. Using the MULTADDSUB you can span multiple sys-
DSP Blocks. The SRI and SRO ports can only be enabled if inputs are less than 18 bits. The Advanced mode,
shown in Figure 15-7, provides finer control over the registers. In the Advanced mode you can control each register
with independent clocks, clock enables and resets.
Figure 15-6. MULTADDSUB Mode Basic Set-up
Figure 15-7. MULTADDSUB Mode Advanced Set-up
15-5