MSC8252 datasheet(23/68 Pages) FREESCALE

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Electrical Characteristics

MSC8252 Dual-Core Digital Signal Processor Data Sheet, Rev. 3

Freescale Semiconductor

Electrical Characteristics

This document contains detailed information on power considerations, DC/AC electrical characteristics, and AC timing

specifications. For additional information, see the MSC8252 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 MSC8252.

Table 2. Absolute Maximum Ratings

Rating

Power Rail Name

Symbol

Value

Unit

Core supply voltage

• Cores 0–3

PLL supply voltage3

VDD

VDDPLL0

VDDPLL1

VDDPLL2

–0.3 to 1.1

M3 memory supply voltage

M3VDD

VDDM3

–0.3 to 1.1

DDR memory supply voltage

• DDR2 mode

• DDR3 mode

DDR reference voltage

Input DDR voltage

GVDD1, GVDD2

MVREF

VDDDDR

MVREF

VINDDR

–0.3 to 1.98

–0.3 to 1.65

–0.3 to 0.51

× VDDDDR

–0.3 to VDDDDR + 0.3

I/O voltage excluding DDR and RapidIO lines

Input I/O voltage

NVDD, QVDD

VDDIO

VINIO

–0.3 to 2.625

–0.3 to VDDIO + 0.3

RapidIO pad voltage

SXPVDD1,

SXPVDD2

VDDSXP

–0.3 to 1.26

Rapid I/O core voltage

Rapid I/O PLL voltage3

Input RapidIO I/O voltage

SXCVDD1,

SXCVDD2

VDDSXC

VDDRIOPLL

VINRIO

–0.3 to 1.21

–0.3 to VDDSXC + 0.3

Operating temperature

–40 to 105

°C

Storage temperature range

TSTG

–55 to +150

°C

Notes:

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.

PLL supply voltage is specified at input of the filter and not at pin of the MSC8252 (see Figure 37 and Figure 38)

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