IGLOOe Low Power Flash FPGAs
Revision 13
2-63
Timing Characteristics
1.5 V DC Core Voltage
1.2 V DC Core Voltage
Table 2-113 Minimum and Maximum DC Input and Output Levels
DC Parameter
Description
Min.
Typ.
Max.
Units
VCCI
Supply Voltage
2.375
2.5
2.625
V
VOL
Output Low Voltage
0.9
1.075
1.25
V
VOH
Output High Voltage
1.25
1.425
1.6
V
IOL1
Output Lower Current
0.65
0.91
1.16
mA
IOH1
Output High Current
0.65
0.91
1.16
mA
VI
Input Voltage
0
2.925
V
IIH2,3
Input High Leakage Current
10
A
IIL2,4
Input Low Leakage Current
10
A
VODIFF
Differential Output Voltage
250
350
450
mV
VOCM
Output Common Mode Voltage
1.125
1.25
1.375
V
VICM
Input Common Mode Voltage
0.05
1.25
2.35
V
VIDIFF
Input Differential Voltage
100
350
mV
Notes:
1. IOL/IOH is defined by VODIFF/(resistor network).
2. Currents are measured at 85°C junction temperature.
3. IIH is the input leakage current per I/O pin over recommended operating conditions VIH < VIN < VCCI. Input current is
larger when operating outside recommended ranges.
4. IIL is the input leakage current per I/O pin over recommended operating conditions where –0.3 V < VIN < VIL.
Table 2-114 AC Waveforms, Measuring Points, and Capacitive Loads
Input Low (V)
Input High (V)
Measuring Point* (V)
VREF (typ.) (V)
1.075
1.325
Cross point
–
Table 2-115 LVDS – Applies to 1.5 V DC Core Voltage
Commercial-Case Conditions: TJ = 70°C, Worst-Case VCC = 1.425 V, Worst-Case VCCI = 2.3 V
Speed Grade
tDOUT
tDP
tDIN
tPY
Units
Std.
0.98
1.77
0.19
1.62
ns
Note: For specific junction temperature and voltage supply levels, refer to Table 2-6 on page 2-6 for derating values. Table 2-116 LVDS – Applies to 1.2 V DC Core Voltage
Commercial-Case Conditions: TJ = 70°C, Worst-Case VCC = 1.14 V, Worst-Case VCCI = 2.3 V
Speed Grade
tDOUT
tDP
tDIN
tPY
Units
Std.
1.55
2.19
0.26
1.88
ns
Note: For specific junction temperature and voltage supply levels, refer to Table 2-7 on page 2-6 for derating values.