DSP56721 datasheet(11/54 Pages) FREESCALE

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SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors, Rev.1

Freescale Semiconductor

Figure 8. Ensure Correct Operation of Power-On Reset with Fast Ramp of Core_VDD

2.1.4

DC Electrical Characteristics

For DC electrical characteristics, see Table 6.

Table 6. DC Electrical Characteristics

Characteristics

Symbol

Min

Typ

Max

Unit

Supply voltages

• Core (Core_VDD)

• PLL (PLLD_VDD, PLLD1_VDD)

VDD

0.9

1.0

1.1

Supply voltages

• I/O (IO_VDD)

• PLL (PLLP_VDD, PLLP1_VDD)

• PLL (PLLA_VDD, PLLA1_VDD)

VDDIO

3.14

3.3

3.46

Input high voltage

VIH

2.0

–

VIO_VDD+2V

Note: To avoid a high current condition and possible system damage, all 3.3 volt supplies must rise before the 1.0 volt

supplies rise.

Input low voltage

VIL

-0.3

–

0.8

Input leakage current

IIN

––

± 84

μA

Clock pin Input Capacitance (EXTAL)

CIN

High impedance (off-state) input current (@ 3.3 V or

0V)

ITSI

-10

–

μA

Output high voltage

IOH = -12 mA

LSYNC_OUT, LALE, LCLK Pins IOH = -16 mA, TDO

Pin IOH = -24 mA

VOH

2.4

–

Output low voltage

IOL = 12 mA

LSYNC_OUT, LALE, LCLK Pins IOL = 16 mA, TDO

Pins IOL = 24 mA

VOL

––

0.4

Core_VDD

Tr must be < 10 ms

0 V

1.0V

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