RadTolerant FPGAs
v3.1
1-7
Absolute Maximum Ratings
Stresses beyond those listed in this table 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
recommended operating conditions.
Table 1-3 Free Air Temperature Range
Symbol
Parameter
Limits
Units
VCC
DC Supply Voltage1, 2, 3
–0.5 to +7.0
V
VI
Input Voltage
–0.5 to VCC +0.5
V
VO
Output Voltage
–0.5 to VCC +0.5
V
IIO
I/O Source Sink Current4
±20
mA
TSTG
Storage Temperature
–65 to +150
°C
Notes:
1. VPP = VCC, except during device programming
2. VSV = VCC, except during device programming
3. VKS = GND, except during device programming
4. Device inputs are normally high impedance and draw extremely low current. However, when input voltage is greater than VCC + 0.5 V
or less than GND – 0.5 V, the internal protection diode will be forward-biased and can draw excessive current.
Table 1-4 Recommended Operating Conditions
Parameter
Commercial
Military
Units
Temperature Range1
0 to +70
–55 to +125
°C
Power Supply Tolerance2
±5
±10
%VCC
Notes:
1. Ambient temperature (TA) is used for commercial and industrial; case temperature (TC) is used for military
2. All power supplies must be in the recommended operating range. For more information, refer to the Power-Up and Power-Down
Behavior of 54SX and RT54SX Devices application note.
Table 1-5 Electrical Specifications
Symbol
Parameter
Test Condition
Commercial
Military
Units
Min.
Max.
Min.
Max.
VOH
1, 2
HIGH Level Output
IOH = –4 mA (CMOS)
3.7
V
IOH = –6 mA (CMOS)
3.84
V
VOL
1, 2
LOW Level Output
IOL = +6 mA (CMOS)
0.33
0.4
V
VIH
HIGH Level Input
TTL Inputs
2.0
VCC + 0.3
2.0
VCC + 0.3
V
VIL
LOW Level Input
TTL Inputs
–0.3
0.8
–0.3
0.8
V
IIN
Input Leakage
VI = VCC or GND
–10
+10
–10
+10
A
IOZ
3-State Output Leakage
VO = VCC or GND
–10
+10
–10
+10
A
CIO
I/O Capacitance3, 4
10
pF
ICC(S)
Standby VCC Supply Current
VI = VCC or GND, IO = 0 mA
2
20
mA
ICC(D)
Dynamic VCC Supply Current
Notes:
1. Actel devices can drive and receive either CMOS or TTL signal levels. No assignment of I/Os as TTL or CMOS is required.
2. Tested one output at a time, VCC = min.
3. Not tested; for information only
4. VOUT = 0V, f = 1 MHz