LFXP3C-3TN100I Lattice, LFXP3C-3TN100I Datasheet - Page 203
LFXP3C-3TN100I
Manufacturer Part Number
LFXP3C-3TN100I
Description
FPGA - Field Programmable Gate Array 3.1K LUTs 62 IO 1.8/ 2.5/3.3V -3 Spd I
Manufacturer
Lattice
Specifications of LFXP3C-3TN100I
Number Of Programmable I/os
62
Data Ram Size
55296
Supply Voltage (max)
3.465 V
Maximum Operating Temperature
+ 100 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Supply Voltage (min)
1.71 V
Package / Case
TQFP-100
Package
100TQFP
Family Name
LatticeXP
Device Logic Units
3000
Maximum Internal Frequency
320 MHz
Typical Operating Supply Voltage
1.8|2.5|3.3 V
Maximum Number Of User I/os
62
Ram Bits
55296
Re-programmability Support
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFXP3C-3TN100I
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
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Figure 9-42. FIFO_DC Without Output Registers, Start of Data Write Cycle
The WrEn signal has to be high to start writing into the FIFO_DC. The Empty and Almost Empty flags are high to
begin and Full and Almost full are low.
When the first data gets written into the FIFO_DC, the Empty flag de-asserts (or goes low), as the FIFO_DC is no
longer empty. In this figure we are assuming that the Almost Empty setting flag setting is 3 (address location 3). So
the Almost Empty flag gets de-asserted when the third address location gets filled.
Now let is assume that we continue to write into the FIFO_DC to fill it. When the FIFO_DC is filled, the Almost Full
and Full Flags are asserted. Figure 9-43 shows the behavior of these flags. In this figure we assume that FIFO_DC
depth is ‘N’.
RPReset
WrClock
RdClock
Almost
Almost
Empty
Empty
Reset
WrEn
RdEn
Data
Full
Full
Q
Invalid Data
Data_1
Data_2
9-38
Invalid Q
Data_3
LatticeECP/EC and LatticeXP Devices
Data_4
Data_5
Memory Usage Guide
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