afs600 Actel Corporation, afs600 Datasheet - Page 230

• Manufacturer Part Number: afs600
• Description: Actel Fusion Programmable System Chips Mixed-signal Family With Optional Arm Support
• Manufacturer: Actel Corporation

Figure 3-1 •
3 -6
Actel Fusion Programmable System Chips
Deactivation trip point:
Activation trip point:
V d = 0.75 V ± 0.25 V
V a = 0.85 V ± 0.25 V
I/O State as a Function of V
V
V
CC
CC
= 1.575 V
= 1.425 V
V
CC
Deactivation trip point:
Activation trip point:
V d = 0.8 V ± 0.3 V
Region 1: I/O Buffers are OFF
V a = 0.9 V ±0.3 V
V
Where VT can be from 0.58 V to 0.9 V (typically 0.75 V)
CC
= V
CCI
CCI
Region 1: I/O buffers are OFF
and V
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
+ VT
output buffers do not meet V
buffers do not meet V
CC
Voltage Levels
same reason, input buffers do not
A d v a n c e d v 1 .4
meet V
below specification. For the
(except differential inputs)
but slower because V
CCI
IH
IH
/V
/V
/V
IL
CC
IL
I/Os are functional
levels, and output
levels, and
OH
are below
Min V
buffers are ON.
OH
standard; i.e., 1.425 V or 1.7 V
/V
Region 4: I/O
/V
OL
voltage at a selected I/O
OL
CCI
levels.
levels.
or 2.3 V or 3.0 V
CCI
datasheet specification
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 CC 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, V IH /V IL , V OH /V OL , etc.
V CCI