LFEC3E-3QN208I Lattice, LFEC3E-3QN208I Datasheet - Page 458

• 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
FPGA which Read Op Code that particular Flash device supports. If the configuration pins CFG2, CFG1, and
CFG0 are 0, 0, 1 (respectively) at power-up the FPGA will use the Read Op Code hardwired on the PCB to access
the Flash.
Table 21-1. Device Configuration Codes
Table 21-2. Manufacturers of “SPI3” Compatible Flash
SPI Serial Flash Sizing
As depicted in Table 21-3, the density of the FPGA determines the size requirement for the SPI Serial Flash.
Smaller Flash sizes can be realized by using the compression option in ispLEVER.
Table 21-3. Selecting Flash Density
Hardware
This section describes how to physically wire the SPI Serial Flash into a design.
LatticeECP/EC
Note: The configuration mode pins indicate the type of device the FPGA will configure
from at power-up. For SPI Serial Flash the mode pins should be set to ‘000’ or ‘001’.
Family
CFG2
X
0
0
1
1
1
1
ST Microelectronics
NexFLASH
Silicon Storage Technology
Saifun
Spansion
PMC
Atmel
Note: This is not meant to be an exhaustive list of manufacturers or
device families.
CFG1
ECP10/EC10
ECP15/EC15
ECP20/EC20
ECP33/EC33
X
0
0
0
0
1
1
ECP6/EC6
Manufacturer
Device
EC1
EC3
CFG0
X
0
1
0
1
0
1
Max Config
SPI Serial Flash
SPIX Serial Flash
Master Serial
Slave Serial
Master Parallel
Slave Parallel
ispJTAG™ (always available)
Bits (Mb)
21-2
SPI Serial Flash Programming Using ispJTAG
0.6
1.1
1.8
3.1
4.3
5.3
7.9
Configuration Mode
Device Family
Required Boot Memory (Mb)
SST25VF
Pm25LV
NX25P
SA25F
S25FL
No Comp
AT25F
M25P
1
2
2
4
8
8
8
on LatticeECP/EC FPGAs
Comp (typ)
25%
25%
25%
25%
25%
25%
25%