M1AFS250-FGG256I Actel Corporation, M1AFS250-FGG256I Datasheet - Page 184

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

Device Architecture
Table 2-87 • Summary of AC Measuring Points
Table 2-88 • I/O AC Parameter Definitions
2- 16 8
Standard
3.3 V LVTTL / 3.3 V LVCMOS
2.5 V LVCMOS
1.8 V LVCMOS
1.5 V LVCMOS
3.3 V PCI
3.3 V PCI-X
3.3 V GTL
2.5 V GTL
3.3 V GTL+
2.5 V GTL+
HSTL (I)
HSTL (II)
SSTL2 (I)
SSTL2 (II)
SSTL3 (I)
SSTL3 (II)
LVDS
LVPECL
Parameter
t
t
t
t
t
t
t
t
t
t
t
t
DP
PY
DOUT
EOUT
DIN
PYS
HZ
ZH
LZ
ZL
ZHS
ZLS
Applicable to All I/O Bank Types
Summary of I/O Timing Characteristics – Default I/O Software Settings
Data to Pad delay through the Output Buffer
Pad to Data delay through the Input Buffer with Schmitt trigger disabled
Data to Output Buffer delay through the I/O interface
Enable to Output Buffer Tristate Control delay through the I/O interface
Input Buffer to Data delay through the I/O interface
Pad to Data delay through the Input Buffer with Schmitt trigger enabled
Enable to Pad delay through the Output Buffer—High to Z
Enable to Pad delay through the Output Buffer—Z to High
Enable to Pad delay through the Output Buffer—Low to Z
Enable to Pad delay through the Output Buffer—Z to Low
Enable to Pad delay through the Output Buffer with delayed enable—Z to High
Enable to Pad delay through the Output Buffer with delayed enable—Z to Low
Input Reference Voltage
(V
REF_TYP
0.75 V
0.75 V
1.25 V
1.25 V
0.8 V
0.8 V
1.0 V
1.0 V
1.5 V
1.5 V
–
–
–
–
–
–
–
–
)
R e visio n 1
Definition
Board Termination Voltage
(V
1.485 V
1.485 V
0.75 V
0.75 V
1.25 V
1.25 V
TT_REF
1.2 V
1.2 V
1.5 V
1.5 V
–
–
–
–
–
–
–
–
)
Measuring Trip Point
0.615 * VCCI (FF))
0.285 * VCCI (RR)
0.285 * VCCI (RR)
0.615 * VCCI (FF)
Cross point
Cross point
(V
0.90 V
0.75 V
VREF
VREF
VREF
VREF
VREF
VREF
VREF
VREF
VREF
VREF
1.4 V
1.2 V
trip
)