A3P1000L-FGG256 Datasheet, PDF (114/242 Pages) Microsemi Corporation – ProASIC3L Low Power Flash FPGAs with Flash*Freeze Technology

ProASIC3L DC and Switching Characteristics
SSTL3 Class II
Stub-Speed Terminated Logic for 3.3 V memory bus standard (JESD8-8). ProASIC3E devices support
Class II. This provides a differential amplifier input buffer and a push-pull output buffer.
Table 2-170 • Minimum and Maximum DC Input and Output Levels
SSTL3 Class II
VIL
VIH
VOL
VOH IOL IOH IOSL IOSH IIL IIH
Drive
Strength
Min.
V
Max.
V
Min.
V
Max. Max.
V
V
Min.
V
Max.
mA mA mA¹
Max.
mA¹ µA² µA²
21 mA
–0.3 VREF – 0.2 VREF + 0.2 3.6 0.5 VCCI – 0.9 21 21 103 109 10 10
Notes:
1. Currents are measured at 100°C junction temperature and maximum voltage.
2. Currents are measured at 85°C junction temperature.
V_TT
SSTL3
Class II ₂₅
Test Point
25
30 pF
Figure 2-22 • AC Loading
Table 2-171 • AC Waveforms, Measuring Points, and Capacitive Loads
Input Low (V)
Input High (V)
Measuring
Point* (V)
VREF (typ.) (V) VTT (typ.) (V)
VREF – 0.2
VREF + 0.2
1.5
1.5
1.485
Note: *Measuring point = Vtrip_. See Table 2-16 on page 2-12 for a complete table of trip points.
C_LOAD (pF)
30
Timing Characteristics
Table 2-172 • SSTL3 Class II – Applies to 1.5 V DC Core Voltage
Commercial-Case Conditions: T_J = 70°C, Worst-Case VCC = 1.425 V,
Worst-Case VCCI = 3.0 V VREF = 1.5 V
Applicable to Pro I/O Banks
Speed
Grade
Std.
t_DOUT
0.59
t_DP
1.86
t_DIN
0.04
t_PY
1.81
t_EOUT
0.38
t_ZL
1.89
t_ZH
t_LZ t_HZ t_ZLS
1.50
1.89
t_ZHS
1.50
Units
ns
–1
0.50 1.58 0.03 1.54 0.33 1.61 1.28
1.61 1.28
ns
Note: For specific junction temperature and voltage supply levels, refer to Table 2-6 on page 2-7 for derating values.
Table 2-173 • SSTL3 Class II – Applies to 1.2 V DC Core Voltage
Commercial-Case Conditions: T_J = 70°C, Worst-Case VCC = 1.14 V,
Worst-Case VCCI = 3.0 V VREF = 1.5 V
Applicable to Pro I/O Banks
Speed
Grade
Std.
t_DOUT
0.77
t_DP
1.86
t_DIN
0.05
t_PY
1.81
t_EOUT
0.50
t_ZL
1.89
t_ZH
t_LZ t_HZ t_ZLS
1.50
1.89
t_ZHS
1.50
Units
ns
–1
0.66 1.58 0.04 1.54 0.43 1.61 1.28
1.61 1.28
ns
Note: For specific junction temperature and voltage supply levels, refer to Table 2-6 on page 2-7 for derating values.
2-98
Revision 13