MSC8256_11 Datasheet, PDF (23/68 Pages) Freescale Semiconductor, Inc – Six-Core Digital Signal Processor

Electrical Characteristics
2 Electrical Characteristics
This document contains detailed information on power considerations, DC/AC electrical characteristics, and AC timing
specifications. For additional information, see the MSC8256 Reference Manual.
2.1 Maximum Ratings
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 MSC8256.
Table 2. Absolute Maximum Ratings
Rating
Core supply voltage
• Cores 0–5
PLL supply voltage³
M3 memory supply voltage
DDR memory supply voltage
• DDR2 mode
• DDR3 mode
Power Rail Name
VDD
M3VDD
GVDD1, GVDD2
Symbol
V_DD
V_DDPLL0
V_DDPLL1
V_DDPLL2
V_DDM3
V_DDDDR
Value
–0.3 to 1.1
–0.3 to 1.1
–0.3 to 1.1
–0.3 to 1.1
–0.3 to 1.1
–0.3 to 1.98
–0.3 to 1.65
Unit
V
V
V
V
V
V
V
DDR reference voltage
MVREF
MV_REF
–0.3 to 0.51 × V_DDDDR
V
Input DDR voltage
V_INDDR
–0.3 to V_DDDDR + 0.3
V
I/O voltage excluding DDR and RapidIO lines
NVDD, QVDD
V_DDIO
–0.3 to 2.625
V
Input I/O voltage
RapidIO pad voltage
Rapid I/O core voltage
V_INIO
–0.3 to V_DDIO + 0.3
V
SXPVDD1,
V_DDSXP
–0.3 to 1.26
V
SXPVDD2
SXCVDD1,
V_DDSXC
–0.3 to 1.21
V
SXCVDD2
Rapid I/O PLL voltage³
V_DDRIOPLL
–0.3 to 1.21
V
Input RapidIO I/O voltage
V_INRIO
–0.3 to V_DDSXC + 0.3
V
Operating temperature
T_J
–40 to 105
°C
Storage temperature range
T_STG
–55 to +150
°C
Notes: 1. Functional operating conditions are given in Table 3.
2. 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.
3. PLL supply voltage is specified at input of the filter and not at pin of the MSC8256 (see Figure 37 and Figure 38)
MSC8256 Six-Core Digital Signal Processor Data Sheet, Rev. 5
Freescale Semiconductor
23