LCMXO2280C-5TN144C LATTICE SEMICONDUCTOR, LCMXO2280C-5TN144C Datasheet - Page 159

• Manufacturer Part Number: LCMXO2280C-5TN144C
• Description: MACHXO PLD FLASH, SCRAM 1.8V, SMD
• Manufacturer: LATTICE SEMICONDUCTOR
• Series: MachXOr

Specifications of LCMXO2280C-5TN144C

• Cpld Type: FLASH
• No. Of Macrocells: 1140
• No. Of I/o's: 113
• Propagation Delay: 3.6ns
• Global Clock Setup Time: 1.1ns
• Frequency: 600MHz
• Supply Voltage Range: 1.71V To 3.465V
• Operating: RoHS Compliant

Lattice Semiconductor
Figure 9-39. PFU-Based ROM Timing Waveform – with Output Registers
Initializing Memory
In the EBR based ROM or RAM memory modes and the PFU based ROM memory mode, it is possible to specify
the power-on state of each bit in the memory array. Each bit in the memory array can have one of two values: 0 or
1.
Initialization File Formats
The initialization file is an ASCII file, which can be created or edited using any ASCII editor. IPexpress supports
three types of memory file formats:
The file name for the initialization file is *.mem (<file_name>.mem). Each row depicts the value to be stored in a
particular memory location and the number of characters (or the number of columns) represents the number of bits
for each address (or the width of the memory module).
The initialization file is primarily used for configuring the ROMs. The EBR in RAM mode can also use the initializa-
tion file to preload the memory contents.
Binary File
The binary file is a text file of 0’s and 1’s. The rows indicate the number of words and the columns indicate the width
of the memory.
Memory Size 20x32
00100000010000000010000001000000
00000001000000010000000100000001
00000010000000100000001000000010
00000011000000110000001100000011
00000100000001000000010000000100
00000101000001010000010100000101
1. Binary file
2. Hex file
3. Addressed Hex
OutClockEn
OutClock
Address
Reset
Q
t
SUADDR_PFU
Add_0
Invalid Data
t
HADDR_PFU
9-36
Memory Usage Guide for MachXO Devices
Add_1
t
CORAM_PFU
Data_0
Add_2
Data_1