LFEC3E-3QN208I Lattice, LFEC3E-3QN208I Datasheet - Page 277

• 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

Lattice Semiconductor
Appendix C. VHDL Example for DDR Input and Output Modules
library IEEE;
use IEEE.std_logic_1164.all;
library ec;
use ec.components.all;
entity ddr_mem is
--*****DDR interface signals assigned SSTL25 IO Standard *************
ATTRIBUTE IO_TYPE
ATTRIBUTE IO_TYPE OF ddrclk
ATTRIBUTE IO_TYPE OF dq
ATTRIBUTE IO_TYPE OF dqs
end ddr_mem;
architecture structure of ddr_mem is
--*****DDR Input register*********************************************
component IDDRXB
end component;
port(
D
ECLK : in STD_LOGIC;
SCLK : in STD_LOGIC;
CE
LSR
DDRCLKPOL
QA
QB
port( dq
: in STD_LOGIC;
: in STD_LOGIC;
: in STD_LOGIC;
: out STD_LOGIC;
: out STD_LOGIC);
dqs
clk
clk90
reset
uddcntl
read
dataout_p : in std_logic_vector(7 downto 0);
dataout_n : in std_logic_vector(7 downto 0);
datatri_p : in std_logic_vector(7 downto 0);
datatri_n : in std_logic_vector(7 downto 0);
dqstri_p
dqstri_n
ddrclk
datain_p
datain_n
dqsc
prmbdet
lock
ddrclkpol : out std_logic);
: in STD_LOGIC;
: inout std_logic_vector(7 downto 0 );
: inout std_logic;
: in std_logic; -- core clock
: in std_logic; -- 90 degree phase shifted clock from the pll
: in std_logic;
: in std_logic;
: in std_logic;
: in std_logic;
: in std_logic;
: out std_logic;
: out std_logic_vector(7 downto 0);
: out std_logic_vector(7 downto 0);
: out std_logic;
: out std_logic;
: out std_logic;
: string;
: SIGNAL IS "SSTL25D_II";
: SIGNAL IS "SSTL25_II";
: SIGNAL IS "SSTL25_II";
10-24
LatticeECP/EC and LatticeXP
DDR Usage Guide