Lattice Semiconductor
ispXPGA Family Data Sheet
30
ispXPGA Family Timing Adders
Parameter
Description
Base
Parameter
-4
-3
Units
Min.
Max.
Min.
Max.
Optional Adders
t
INDIO
t
IOI
Input Adjusters
LVTTL_in
Input Delay
—
—
6.0
—
6.9
ns
Using 3.3V TTL
t
IOIN
t
IOIN
t
IOIN
t
IOIN
t
IOIN
t
IOIN
t
IOIN
t
IOIN
t
IOIN
t
IOIN
t
IOIN
—
0.5
—
0.5
ns
LVCMOS_18_in
Using 1.8V CMOS
—
0.0
—
0.0
ns
LVCMOS_25_in
Using 2.5V CMOS
—
0.3
—
0.3
ns
LVCMOS_33_in
Using 3.3V CMOS
—
0.5
—
0.5
ns
AGP_1X_in
Using AGP 1x
—
1.0
—
1.0
ns
CTT25_in
Using CTT 2.5V
—
1.0
—
1.0
ns
CTT33_in
Using CTT 3.3V
—
1.0
—
1.0
ns
GTL+_in
Using GTL+
—
0.5
—
0.5
ns
HSTL_I_in
Using HSTL 2.5V, Class I
—
0.5
—
0.5
ns
HSTL_III_in
Using HSTL 2.5V, Class III
—
0.5
—
0.5
ns
LVDS_in
Using Low Voltage
Differential Signaling (LVDS)
—
0.8
—
0.8
ns
BLVDS_in
Using Bus Low Voltage
Differential Signaling (BLVDS)
t
IOIN
—
0.8
—
0.8
ns
LVPECL_in
Using Low Voltage PECL
t
IOIN
t
IOIN
t
IOIN
t
IOIN
t
IOIN
t
IOIN
—
0.8
—
0.8
ns
PCI_in
Using PCI
—
1.0
—
1.0
ns
SSTL2_I_in
Using SSTL 2.5V, Class I
—
0.8
—
0.8
ns
SSTL2_II_in
Using SSTL 2.5V, Class II
—
0.5
—
0.5
ns
SSTL3_I_in
Using SSTL 3.3V, Class I
—
0.8
—
0.8
ns
SSTL3_II_in
Using SSTL 3.3V, Class II
—
0.8
—
0.8
ns
t
IOO
Output Adjusters
Slow Slew
Using Slow Slew (LVTTL and
LVCMOS Outputs only)
t
IOBUF
, t
IOEN
—
0.7
—
0.7
ns
LVTTL_out
Using 3.3V TTL Drive
t
IOBUF,
t
IOEN,
t
IODIS
t
IOBUF,
t
IOEN,
t
IODIS
t
IOBUF,
t
IOEN,
t
IODIS
t
IOBUF,
t
IOEN,
t
IODIS
t
IOBUF,
t
IOEN,
t
IODIS
t
IOBUF,
t
IOEN,
t
IODIS
t
IOBUF,
t
IOEN,
t
IODIS
t
IOBUF,
t
IOEN,
t
IODIS
t
IOBUF,
t
IOEN,
t
IODIS
t
IOBUF,
t
IOEN,
t
IODIS
—
1.0
—
1.0
ns
LVCMOS_18_4mA_out
Using 1.8V CMOS Standard,
4mA Drive
—
0.8
—
0.8
ns
LVCMOS_18_5.33mA_out Using 1.8V CMOS Standard,
5.33mA Drive
—
0.6
—
0.6
ns
LVCMOS_18_8mA_out
Using 1.8V CMOS Standard,
8mA Drive
—
0.0
—
0.0
ns
LVCMOS_18_12mA_out
Using 1.8V CMOS Standard,
12mA Drive
—
0.2
—
0.2
ns
LVCMOS_25_4mA_out
Using 2.5V CMOS Standard,
4mA Drive
—
0.7
—
0.7
ns
LVCMOS_25_5.33mA_out Using 2.5V CMOS Standard,
5.33 mA Drive
—
0.5
—
0.5
ns
LVCMOS_25_8mA_out
Using 2.5V CMOS Standard,
8mA Drive
—
0.5
—
0.5
ns
LVCMOS_25_12mA_out
Using 2.5V CMOS Standard,
12mA Drive
—
0.5
—
0.5
ns
LVCMOS_25_16mA_out
Using 2.5V CMOS Standard,
16mA Drive
—
0.5
—
0.5
ns