M1AFS250-FGG256I Actel Corporation, M1AFS250-FGG256I Datasheet - Page 256

• Manufacturer Part Number: M1AFS250-FGG256I
• Description: Actel Fusion Family Of Mixed Signal Fpgas
• Manufacturer: Actel Corporation

DC and Power Characteristics
Figure 3-1 • I/O State as a Function of VCCI and VCC Voltage Levels
3 - 6
Deactivation trip point:
V a = 0.85 V ± 0.25 V
V d = 0.75 V ± 0.25 V
Activation trip point:
VCC = 1.575 V
VCC = 1.425 V
VCC
Deactivation trip point:
Region 1: I/O Buffers are OFF
Activation trip point:
VCC = VCCI + VT
Where VT can be from 0.58 V to 0.9 V (typically 0.75 V)
V d = 0.8 V ± 0.3 V
V a = 0.9 V ±0.3 V
Region 1: I/O buffers are OFF
Region 2: I/O buffers are ON.
I/Os are functional (except differential inputs)
but slower because VCCI / VCC are below
specification. For the same reason, input
buffers do not meet VIH / VIL levels, and
output buffers do not meet VOH / VOL levels.
buffers do not meet VOH / VOL levels.
same reason, input buffers do not
meet VIH / VIL levels, and output
below specification. For the
but slower because VCCI is
(except differential inputs)
R e vi s i o n 1
I/Os are functional
buffers are ON.
Region 4: I/O
Min VCCI datasheet specification
standard; i.e., 1.425 V or 1.7 V
voltage at a selected I/O
or 2.3 V or 3.0 V
Region 3: I/O buffers are ON.
I/Os are functional; I/O DC
specifications are met,
but I/Os are slower because
the VCC is below specification
Region 5: I/O buffers are ON
and power supplies are within
specification.
I/Os meet the entire datasheet
and timer specifications for
speed, VIH / VIL, VOH VOL, etc.
VCCI