a3p250l Actel Corporation, a3p250l Datasheet - Page 36

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

ProASIC3L DC and Switching Characteristics
Table 2-25 • Summary of AC Memory Points
Table 2-26 • I/O AC Parameter Definitions
2 -2 4
Standard
3.3 V LVTTL /
3.3 V LVCMOS
2.5 V LVCMOS
1.8 V LVCMOS
1.5 V LVCMOS
1.2 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
DP
PY
DOUT
EOUT
DIN
HZ
ZH
LZ
ZL
ZHS
ZLS
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
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
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
0.75 V
0.75 V
1.25 V
1.25 V
REF_TYP
0.8 V
0.8 V
1.0 V
1.0 V
1.5 V
1.5 V
–
–
–
–
–
–
–
–
–
)
A d v a n c e v 0. 4
Parameter Definition
Board Termination
Voltage (V
1.485 V
1.485 V
0.75 V
0.75 V
1.25 V
1.25 V
1.2 V
1.2 V
1.5 V
1.5 V
–
–
–
–
–
–
–
–
–
TT_REF
)
Measuring Trip Point
0.615 * V
0.285 * V
0.285 * V
0.615 * V
Cross point
Cross point
(V
0.90 V
0.75 V
1.4 V
1.2 V
0.6V
V
V
V
V
V
V
V
V
V
V
trip
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
CCI
CCI
CCI
CCI
)
(FF))
(RR)
(RR)
(FF)