Specifications ispLSI 1048E
16
USE ispLSI 1048EA FOR NEW DESIGNS
Part Number Description
ispLSI 1048E Ordering Information
50
50
128-Pin PQFP20
20
ispLSI 1048E-50LQ
128-Pin TQFPispLSI 1048E-50LT
Table 2-0041A/1048E
FAMILY fmax (MHz)
90
90
70
ORDERING NUMBER PACKAGE
128-Pin PQFP
128-Pin TQFP
tpd (ns)
10
10
15
ispLSI
ispLSI 1048E-90LQ
ispLSI 1048E-90LT
128-Pin PQFPispLSI 1048E-70LQ
70 128-Pin TQFP15 ispLSI 1048E-70LT
125
125
100
128-Pin PQFP
128-Pin TQFP
7.5
7.5
10
ispLSI 1048E-125LQ
ispLSI 1048E-125LT
128-Pin PQFPispLSI 1048E-100LQ
100 128-Pin TQFP10
ispLSI 1048E-100LT
COMMERCIAL
70 128-Pin PQFP15 ispLSI 1048E-70LQI*
50 128-Pin PQFP20 ispLSI 1048E-50LQI*
Table 2-0041B/1048E
FAMILY fmax (MHz) ORDERING NUMBER PACKAGEtpd (ns)
ispLSI
INDUSTRIAL
*Use 1048E-70 for new 1048E-50 designs.
Package Thermal Characteristics
For the ispLSI 1048E-125LT, it is strongly recommended
that the actual Icc be verified to ensure that the maximum
junction temperature (T
J
) with power supplied is not
exceeded. Depending on the specific logic design and
clock speed, airflow may be required to satisfy the maxi-
mum allowable junction temperature (T
J
) specification.
Please refer to the Thermal Management section of the
Lattice Semiconductor Data Book or CD-ROM for addi-
tional information on calculating T
J
.
Conventional Packaging
Grade
Blank = Commercial
I = Industrial
Device Number
1048E XXX X X X
Speed
125 = 125 MHz
f
max
100 = 100 MHz
f
max
90 = 90 MHz
f
max
70 = 70 MHz
f
max
50 = 50 MHz
f
max
Power
L = Low
Package
Q = PQFP
T = TQFP
QN = Lead-Free PQFP
TN = Lead-Free TQFP
–
Device Family
ispLSI
