AX250-PQ208I Datasheet, PDF (15/262 Pages) Microsemi Corporation – Axcelerator Family FPGAs

2 – Detailed Specifications
Operating Conditions
Table 2-1 lists the absolute maximum ratings of Axcelerator devices. Stresses beyond the ratings may
cause permanent damage to the device. Exposure to Absolute Maximum rated conditions for extended
periods may affect device reliability. Devices should not be operated outside the recommendations in
Table 2-2.
Table 2-1 • Absolute Maximum Ratings
Symbol Parameter
Limits
Units
VCCA DC Core Supply Voltage
–0.3 to 1.7
V
VCCI
DC I/O Supply Voltage
–0.3 to 3.75
V
VREF
DC I/O Reference Voltage
–0.3 to 3.75
V
VI
Input Voltage
–0.5 to 4.1
V
VO
Output Voltage
–0.5 to 3.75
V
TSTG
Storage Temperature
–60 to +150
°C
VCCDA* Supply Voltage for Differential I/Os
–0.3 to 3.75
V
Note: * Should be the maximum of all VCCI.
Table 2-2 • Recommended Operating Conditions
Parameter Range
Ambient Temperature (T_A)¹
1.5 V Core Supply Voltage
Commercial
0 to +70
1.425 to 1.575
Industrial
–40 to +85
1.425 to 1.575
Military
–55 to +125
1.425 to 1.575
Units
°C
V
1.5 V I/O Supply Voltage
1.425 to 1.575 1.425 to 1.575 1.425 to 1.575
V
1.8 V I/O Supply Voltage
1.71 to 1.89
1.71 to 1.89
1.71 to 1.89
V
2.5 V I/O Supply Voltage
2.375 to 2.625 2.375 to 2.625 2.375 to 2.625
V
3.3 V I/O Supply Voltage
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
V
VCCDA Supply Voltage
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
V
VPUMP Supply Voltage
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
V
Notes:
1. Ambient temperature (T_A) is used for commercial and industrial grades; case temperature (T_C) is used for
military grades.
2. T_J max = 125°C
Power-Up/Down Sequence
All Axcelerator I/Os are tristated during power-up until normal device operating conditions are reached,
when I/Os enter user mode. VCCDA should be powered up before (or coincidentally with) VCCA and
VCCI to ensure the behavior of user I/Os at system start-up. Conversely, VCCDA should be powered
down after (or coincidentally with) VCCA and VCCI. Note that VCCI and VCCA can be powered up in any
sequence with respect to each other, provided the requirement with respect to VCCDA is satisfied.
Revision 18
2-1