
SMJ320C6414, SMJ320C6415, SMJ320C6416
FIXEDPOINT DIGITAL SIGNAL PROCESSORS
SGUS050A JANUARY 2004 REVISED MARCH 2004
76
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
absolute maximum ratings over operating case temperature range (unless otherwise noted)
Supply voltage ranges: CVDD (see Note 1)
0.3 V to 1.8 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DVDD (see Note 1)
0.3 V to 4 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage ranges:
(except PCI), VI
0.3 V to 4 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(PCI), VIP [C6415 and C6416 only]
0.5 V to DVDD + 0.5 V
. . . . . . . . . . . . . . . . . . . . .
Output voltage ranges: (except PCI), VO
0.3 V to 4 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(PCI), VOP [C6415 and C6416 only]
0.5 V to DVDD + 0.5 V
. . . . . . . . . . . . . . . . . . . .
Operating case temperature ranges, TC:
55
_C to 115_C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
65
_C to 150_C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to VSS.
recommended operating conditions
MIN
NOM
MAX
UNIT
CVDD
Supply voltage, Core
1.36
1.4
1.44
V
DVDD
Supply voltage, I/O
3.14
3.3
3.46
V
VSS
Supply ground
0
V
VIH
High-level input voltage (except PCI)
2
V
VIL
Low-level input voltage (except PCI)
0.8
V
VIP
Input voltage (PCI) [C6415 and C6416 only]
0.5
DVDD + 0.5
V
VIHP
High-level input voltage (PCI) [C6415 and C6416 only]
0.5DVDD
DVDD + 0.5
V
VILP
Low-level input voltage (PCI) [C6415 and C6416 only]
0.5
0.3DVDD
V
VOS
Maximum voltage during overshoot/undershoot
1.0§
4.3§
V
TC
Operating case tem-
perature
W version
–55
115
_C
Future variants of the C641x DSPs may operate at voltages ranging from 0.9 V to 1.4 V to provide a range of system power/performance options.
TI highly recommends that users design-in a supply that can handle multiple voltages within this range (i.e., 1.2 V, 1.25 V, 1.3 V, 1.35 V, 1.4 V
with
± 3% tolerances) by implementing simple board changes such as reference resistor values or input pin configuration modifications. Examples
of such supplies include the PT4660, PT5500, PT5520, PT6440, and PT6930 series from Power Trends, a subsidiary of Texas Instruments. Not
incorporating a flexible supply may limit the system’s ability to easily adapt to future versions of C641x devices.
§ The absolute maximum ratings should not be exceeded for more than 30% of the cycle period.
12
10
8
6
4
2
0
100
110
120
130
140
150
Life (yrs)
Junction Temp (C)
10
9
8
7
6
5
4
3
2
1
Life vs. Temperature at 600 MHz
Figure 11. Impact of Elevated Temperature on Device Life