A3P600L-FG484I Datasheet, PDF (103/242 Pages) Microsemi Corporation – Dramatic Reduction in Dynamic and Static Power Savings

ProASIC3L Low Power Flash FPGAs
3.3 V GTL+
Gunning Transceiver Logic Plus is a high-speed bus standard (JESD8-3). It provides a differential
amplifier input buffer and an open-drain output buffer. The V_CCI pin should be connected to 3.3 V
Table 2-142 • Minimum and Maximum DC Input and Output Levels
3.3 V GTL+
VIL
VIH
VOL VOH IOL IOH IOSL IOSH IIL IIH
Drive
Strength
Min.
V
Max.
V
Min.
V
Max.
V
Max.
V
Min.
Max.
V mA mA mA¹
Max.
mA¹ µA² µA²
35 mA
–0.3 VREF – 0.1 VREF + 0.1 3.6
0.6
– 35 35 268
181 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
GTL+ ₂₅
Test Point
10 pF
Figure 2-15 • AC Loading
Table 2-143 • AC Waveforms, Measuring Points, and Capacitive Loads
Input Low (V)
Input High (V)
Measuring
Point* (V)
VREF (typ.) (V) VTT (typ.) (V)
VREF – 0.1
VREF + 0.1
1.0
1.0
1.5
Note: *Measuring point = Vtrip. See Table 2-16 on page 2-12 for a complete table of trip points.
C_LOAD (pF)
10
Timing Characteristics
Table 2-144 • 3.3 V GTL+ – 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 = 1.0 V
Applicable to Pro I/O Banks
Speed
Grade
Std.
t_DOUT
0.59
t_DP
1.85
t_DIN
0.04
t_PY
2.12
t_EOUT
0.38
t_ZL
1.88
t_ZH
t_LZ t_HZ t_ZLS
1.85
3.90
t_ZHS
3.86
Units
ns
–1
0.50 1.57 0.03 1.80 0.33 1.60 1.57
3.31 3.29
ns
Note: For specific junction temperature and voltage supply levels, refer to Table 2-6 on page 2-7 for derating values.
Table 2-145 • 3.3 V GTL+ – 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 = 1.0 V
Applicable to Pro I/O Banks
Speed
Grade
Std.
t_DOUT
0.77
t_DP
1.85
t_DIN
0.05
t_PY
2.12
t_EOUT
0.50
t_ZL
1.88
t_ZH
t_LZ t_HZ t_ZLS
1.85
3.90
t_ZHS
3.86
Units
ns
–1
0.66 1.57 0.04 1.80 0.43 1.60 1.57
3.31 3.29
ns
Note: For specific junction temperature and voltage supply levels, refer to Table 2-6 on page 2-7 for derating values.
Revision 13
2- 87