LFE2-20E-5FN256I Lattice, LFE2-20E-5FN256I Datasheet - Page 550

• Manufacturer Part Number: LFE2-20E-5FN256I
• Description: IC FPGA 21KLUTS 193I/O 256FPBGA
• Manufacturer: Lattice
• Series: ECP2r

Specifications of LFE2-20E-5FN256I

• Number Of Logic Elements/cells: 21000
• Number Of Labs/clbs: 2625
• Total Ram Bits: 282624
• Number Of I /o: 193
• Number Of Gates: -
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 256-BGA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 220-1170; LFE2-20E-5FN256I; Q6411457

Lattice Semiconductor
Figure 10-23. CLKDIV Application Examples
Release Behavior
The port “Release” is used to synchronize all outputs after RST is de-asserted. Figure 10-24 illustrates the Release
behavior.
Figure 10-24. CLKDIV Release Behavior
RELEASE
CDIV1
CDIV2
CDIV4
CDIV8
De-asserted RST
CLKI
RST
registered
Data
Data
CLK
8
8
Clock start counting
ECLK
RST
DLL
D
Q
CLKOP
CLKOS
CLKDIV
D
10-26
Q
Release synchronizes
GEARING
GEARING
(2x)
(2x)
outputs
LatticeECP2/M sysCLOCK PLL/DLL
Primary
Clock
(System Clock)
16
SCLK
16
Design and Usage Guide