2.2.2 Timing Characteristics

Axcelerator devices are manufactured in a CMOS process. Therefore, device performance varies according to temperature, voltage, and process variations. Minimum timing parameters reflect maximum operating voltage, minimum operating temperature, and best-case processing. Maximum timing parameters reflect minimum operating voltage, maximum operating temperature, and worst-case processing. The derating factors shown in the following table should be applied to all timing data within this datasheet.

Table 2-7. Temperature and Voltage Timing Derating Factors (Normalized to Worst-Case Commercial, T_J = 70 °C, VCCA = 1.425V)
VCCA	Junction Temperature
VCCA	–55 °C	–40 °C	0 °C	25 °C	70 °C	85 °C	125 °C
1.4V	0.83	0.86	0.91	0.96	1.02	1.05	1.15
1.425V	0.82	0.84	0.90	0.94	1.00	1.04	1.13
1.5V	0.78	0.80	0.85	0.89	0.95	0.98	1.07
1.575V	0.74	0.76	0.81	0.85	0.90	0.94	1.02
1.6V	0.73	0.75	0.80	0.84	0.89	0.92	1.01

Note:

The user can set the junction temperature in Designer software to any integer value in the range of –55 °C to 125 °C.
The user can set the core voltage in Designer software to any value between 1.4V and 1.6V.

All timing numbers listed in this datasheet represent sample timing characteristics of Axcelerator devices. Actual timing delay values are design-specific and can be derived from the Timer tool in Microchip’s Designer software after place-and-route.