Device Comparison¶
The High Density (HD) FPGAs are embedded FPGAs built with the Skywater 130nm High Density Standard Cell library (Sky130_fd_SC_HD).
Resource/Capacity |
SOFA HD |
QLSOFA HD |
SOFA CHD |
---|---|---|---|
Look-Up Tables 1 |
1152 |
1152 |
1152 |
Flip-flops |
2304 |
2304 |
2304 |
Soft Adders 2 |
N/A |
1152 |
1152 |
Routing Channel Width 3 |
40 |
60 |
60 |
Max. Configuration Speed 4 |
50MHz |
50MHz |
50MHz |
Max. Operating Speed 4 |
50MHz |
50 MHz |
50MHz |
User I/O Pins 5 |
144 |
144 |
144 |
Max. I/O Speed 4 |
33MHz |
33MHz |
33MHz |
Core Voltage |
1.8V |
1.8V |
1.8V |
- 1
counted by 4-input fracturable Look-Up Tables (LUTs), each of which can operate as dual-output 3-input LUTs or single-output 4-input LUT.
- 2
counted by 3-input Look-Up Tables (LUTs) that are organized as a carry chain
- 3
counted by number of uni-directional routing tracks per tile
- 4(1,2,3)
bounded by the maximum speed of GPIO cells of Skywater 130nm PDK. Higher speed may be expected when a high-speed GPIO cell is available.
- 5
I/Os are divided into two groups: GPIOs and embedded I/Os.