MSC7115 Motorola Semiconductor Products, MSC7115 Datasheet - Page 17

• Manufacturer Part Number: MSC7115
• Manufacturer: Motorola Semiconductor Products

2
This chapter covers power considerations, DC/AC electrical characteristics, and AC timing specifications. For additional
information, see the MSC711x Reference Manual.
Note:
2.1
In calculating timing requirements, adding a maximum value of one specification to a minimum value of another specification
does not yield a reasonable sum. A maximum specification is calculated using a worst case variation of process parameter values
in one direction. The minimum specification is calculated using the worst case for the same parameters in the opposite direction.
Therefore, a “maximum” value for a specification never occurs in the same device with a “minimum” value for another
specification; adding a maximum to a minimum represents a condition that can never exist.
Table 2 describes the maximum electrical ratings for the MSC7115.
Freescale Semiconductor
Core supply voltage
Memory supply voltage
PLL supply voltage
I/O supply voltage
Input voltage
Reference voltage
Maximum operating temperature
Minimum operating temperature
Storage temperature range
Notes:
The MSC7115 electrical specifications are preliminary and many are from design simulations. These specifications
may not be fully tested or guaranteed at this early stage of the product life cycle. Finalized specifications will be
published after thorough characterization and device qualifications have been completed.
1.
2.
3.
Specifications
Maximum Ratings
Functional operating conditions are given in Table 3.
Absolute maximum ratings are stress ratings only, and functional operation at the maximum is not guaranteed. Stress beyond
the listed limits may affect device reliability or cause permanent damage.
Section 3.1, Thermal Design Considerations includes a formula for computing the chip junction temperature (T
This device contains circuitry protecting against damage
due to high static voltage or electrical fields; however,
normal precautions should be taken to avoid exceeding
maximum voltage ratings. Reliability is enhanced if unused
inputs are tied to an appropriate logic voltage level (for
example, either GND or V
MSC7115 Low-Cost 16-bit DSP with DDR Controller Data Sheet, Rev. 11
Rating
Table 2. Absolute Maximum Ratings
CAUTION
DD
).
Symbol
V
V
V
V
V
T
DDPLL
V
DDIO
DDC
DDM
T
REF
T
STG
IN
A
J
(GND – 0.2) to 4.0
–55 to +150
–0.2 to 4.0
Value
105
–40
1.5
4.0
1.5
4.0
Specifications
J
).
Unit
°C
°C
°C
V
V
V
V
V
V
17