a3p250l Actel Corporation, a3p250l Datasheet - Page 17

• Manufacturer Part Number: a3p250l
• Description: Proasic3l Low-power Flash Fpgas With Flash*freeze Technology
• Manufacturer: Actel Corporation

Figure 2-2 • V2 Devices – I/O State as a Function of V
Deactivation trip point:
Activation trip point:
V
V
a
d
= 0.85 V ± 0.2 V
= 0.75 V ± 0.2 V
V
V
CC
CC
= 1.575 V
= 1.14 V
V
CC
Region 1: I/O Buffers are OFF
V
where VT can be from 0.58 V to 0.9 V (typically 0.75 V)
Deactivation trip point:
Activation trip point:
CC
V
V
a
d
= V
= 0.9 V ± 0.15 V
= 0.8 V ± 0.15 V
CCI
+ VT
Region 1: I/O buffers are OFF
Region 2: I/O buffers are ON.
I/Os are functional (except differential inputs)
but slower because V
specification. For the same reason, input
buffers do not meet V
output buffers do not meet V
buffers do not meet V
meet V
same reason, input buffers do not
IH
below specification. For the
A dv a n c e v 0. 4
/V
but slower because V
IL
(except differential
(except differential inputs)
levels, and output
CCI
IH
/V
/V
CCI
I/Os are functional
I/Os are functional
CC
IL
buffers are ON.
buffers are ON.
OH
levels, and
are below
standard; i.e., 1.14 V,1.425 V, 1.7 V,
and V
Region 4: I/O
Region 4: I/O
OH
/V
Min V
OL
/V
OL
levels.
voltage at a selected I/O
levels.
CCI
CC
CCI
2.3 V, or 3.0 V
datasheet specification
Voltage Levels
is
Region 3: I/O buffers are ON.
I/Os are functional; I/O DC
specifications are met,
but I/Os are slower because
the V
speed, V
Region 5: I/O buffers are ON
and power supplies are within
specification.
I/Os meet the entire datasheet
and timer specifications for
ProASIC3L DC and Switching Characteristics
CC
is below specification.
IH
/V
IL
, V
OH
/V
OL
, etc.
V
CCI
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