3-12
DC and Switching Characteristics
Lattice Semiconductor MachXO Family Data Sheet
Typical Building Block Function Performance
1
Pin-to-Pin Performance (LVCMOS25 12mA Drive)
Register-to-Register Performance
Derating Logic Timing
Logic Timing provided in the following sections of the data sheet and the ispLEVER design tools are worst case
numbers in the operating range. Actual delays may be much faster. The ispLEVER design tool from Lattice can pro-
vide logic timing numbers at a particular temperature and voltage.
Function -5 Timing Units
Basic Functions
16-bit decoder 6.7 ns
4:1 MUX 4.5 ns
16:1 MUX 5.1 ns
Function -5 Timing Units
Basic Functions
16:1 MUX 487 MHz
16-bit adder 292 MHz
16-bit counter 388 MHz
64-bit counter 200 MHz
Embedded Memory Functions (1200 and 2280 Devices Only)
256x36 Single Port RAM 284 MHz
512x18 True-Dual Port RAM 284 MHz
Distributed Memory Functions
16x2 Single Port RAM 434 MHz
64x2 Single Port RAM 320 MHz
128x4 Single Port RAM 261 MHz
32x2 Pseudo-Dual Port RAM 314 MHz
64x4 Pseudo-Dual Port RAM 271 MHz
1. The above timing numbers are generated using the ispLEVER design tool. Exact performance may vary with device and
tool version. The tool uses internal parameters that have been characterized but are not tested on every device.
Rev. A 0.19
