参数资料
型号: LFX125EB-05F256C
厂商: Lattice Semiconductor Corporation
文件页数: 98/119页
文件大小: 0K
描述: IC FPGA 139K GATES 256-BGA
标准包装: 90
系列: ispXPGA®
逻辑元件/单元数: 1936
RAM 位总计: 94208
输入/输出数: 160
门数: 139000
电源电压: 2.3 V ~ 3.6 V
安装类型: 表面贴装
工作温度: 0°C ~ 85°C
封装/外壳: 256-BGA
供应商设备封装: 256-FPBGA(17x17)
Lattice Semiconductor
ispXPGA Family Data Sheet
4
Figure 1. ispXPGA Block Diagram
Programmable Function Unit
The Programmable Function Unit (PFU) is the basic building block of the ispXPGA architecture. The PFUs are
arranged in rows and columns in the device with PFU (1,1) referring to (row 1, column 1). Each PFU consists of
four Configurable Logic Elements (CLEs), four Configurable Sequential Elements (CSEs), and a Wide Logic Gen-
erator (WLG). By utilizing these components, the PFU can implement a variety of functions. Table 3 lists some of
the function capabilities of the PFU.
There are 57 inputs to each PFU and nine outputs. The PFU uses 20 inputs for logic, and 37 inputs drive the con-
trol logic from which six control signals are derived for the PFU.
Table 3. Function Capability of ispXPGA PFU
Function
Capability
Look-up table
LUT-4, LUT-5, LUT-6
Wide logic functions
Up to 20 input logic functions
Multiplexing
2:1, 4:1, 8:1
Arithmetic logic
Dedicated carry chain and booth multiplication logic
Single-port RAM
16X1, 16X2, 16X4, 32X1, 32X2, 64X1
Double-port RAM
16X1, 16X2, 32X1
Shift register
8-bit shift registers (up to 32-bit shift capability)
PFU
PIC
sysHSI Block
sysCLOCK PLL
sysIO Buffer
sysMEM Block
SELECT
DEVICES
DISCONTINUED
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