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Lattice LatticeSC/M Family

LatticeSC/M Family


The LatticeSC family of FPGAs combines a high-performance FPGA fabric, high-speed SERDES, high-performance I/Os and large embedded RAM in a single industry leading architecture. This FPGA family is fabricated in a state of the art technology to provide one of the highest performing FPGAs in the industry. This family of devices includes features to meet the needs of today’s communication network systems. These features include SERDES with embedded advance PCS (Physical Coding sub-layer), up to 7.8 Mbits of sysMEM embedded block RAM, dedicated logic to support system level standards such as RAPIDIO, SPI4.2, SFI-4, UTOPIA, XGMII and CSIX. The devices in this family feature clock multiply, divide and phase shift PLLs, numerous DLLs and dynamic glitch free clock MUXs which are required in today’s high end system designs. High-speed, high-bandwidth I/O make this family ideal for high-throughput systems. The ispLEVER design tool from Lattice allows large complex designs to be efficiently implemented using the LatticeSC family of FPGA devices. Synthesis library support for LatticeSC is available for popular logic synthesis tools. The ispLEVER tool uses the synthesis tool output along with the constraints from its floor planning tools to place and route the design in the LatticeSC device. The ispLEVER tool extracts the timing from the routing and backannotates it into the design for timing verification. Lattice provides many pre-designed IP (Intellectual Property) ispLeverCORE modules for the LatticeSC family. By using these IPs as standardized blocks, designers are free to concentrate on the unique aspects of their design, increasing their productivity. Innovative high-performance FPGA architecture, high-speed SERDES with PCS support, sysMEM embedded memory and high performance I/O are combined in the LatticeSC to provide excellent performance for today’s leading edge systems designs. Table 1-3 details the performance of several common functions implemented within the LatticeSC.


 High Performance FPGA Fabric

• 15K to 115K four input Look-up Tables (LUT4s)

• 139 to 942 I/Os

• 700MHz global clock; 1GHz edge clocks

 4 to 32 High Speed SERDES and flexiPCS(per Device)

• Performance ranging from 600Mbps to 3.8Gbps

• Excellent Rx jitter tolerance (0.8UI at 3.125Gbps)

• Low Tx jitter (0.25UI typical at 3.125Gbps)

• Built-in Pre-emphasis and equalization

• Low power (typically 105mW per channel)

• Embedded Physical Coding Sublayer (PCS)provides pre-engineered implementation for the following standards:

– GbE, XAUI, PCI Express, SONET, Serial RapidIO, 1G Fibre Channel, 2G Fibre Channel

 2Gbps High Performance PURESPEED I/O

• Supports the following performance bandwidths

– Differential I/O up to 2Gbps DDR (1GHz Clock)

– Single-ended memory interfaces up to 800Mbps

• 144 Tap programmable Input Delay (INDEL) block on every I/O dynamically aligns data toclock for robust performance

– Dynamic bit Adaptive Input Logic (AIL) monitoring and control circuitry per pin that automatically ensures proper set-up and hold

– Dynamic bus: uses control bus from DLL

– Static per bit

• Electrical standards supported:

– LVCMOS 3.3/2.5/1.8/1.5/1.2, LVTTL

– SSTL 3/2/18 I, II; HSTL 18/15 I, II



• Programmable On Die Termination (ODT)

– Includes Thevenin Equivalent and low power VTT termination options

 Memory Intensive FPGA

• sysMEM embedded Block RAM

– 1 to 7.8 Mbits memory

– True Dual Port/Pseudo Dual Port/Single Port

– Dedicated FIFO logic for all block RAM

– 500MHz performance

• Additional 240K to 1.8Mbits distributed RAM

 sysCLOCK Network

• Eight analog PLLs per device

– Frequency range from 15MHz to 1GHz

– Spread spectrum support

• 12 DLLs per device with direct control of I/O delay

– Frequency range from 100MHz to 700MHz

• Extensive clocking network

– 700MHz primary and 325 MHz secondary clocks

– 1GHz I/O-connected edge clocks

• Precision Clock Divider

– Phase matched x2 and x4 division of incoming clocks

• Dynamic Clock Select (DCS)

– Glitch free clock MUX

 Masked Array for Cost Optimization (MACO) Blocks

• On-chip structured ASIC Blocks provide preengineered IP for low power, low cost system level integration

 High Performance System Bus

• Ties FPGA elements together with a standard bus framework

– Connects to peripheral user interfaces for run-time dynamic configuration

 System Level Support

• IEEE standard 1149.1 Boundary Scan, plus

ispTRACY internal logic analyzer

• IEEE Standard 1532 in-system configuration

• 1.2V and 1.0V operation

• Onboard oscillator for initialization and general use

• Embedded PowerPC microprocessor interface

• Low cost wire-bond and high pin count flip-chip packaging

• Low cost SPI Flash RAM configuration

LatticeSC/M Family Devices

LatticeSC/M Family Documents

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