DSP56F805 Просмотр технического описания (PDF) - Freescale Semiconductor

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DSP56F805

16-bit Digital Signal Controllers

Freescale Semiconductor 

2.2 Power and Ground Signals

No. of Pins

8

1

Table 2-2 Power Inputs

Signal Name

VDD

VDDA

Signal Description

Power—These pins provide power to the internal structures of the chip, and

should all be attached to VDD.

Analog Power—This pin is a dedicated power pin for the analog portion of the

chip and should be connected to a low noise 3.3V supply.

No. of Pins

7

1

1

Table 2-3 Grounds

Signal Name

VSS

VSSA

TCS

Signal Description

GND—These pins provide grounding for the internal structures of the chip, and

should all be attached to VSS.

Analog Ground—This pin supplies an analog ground.

TCS—This Schmitt pin is reserved for factory use and must be tied to VSS for

normal use. In block diagrams, this pin is considered an additional VSS.

Table 2-4 Supply Capacitors and VPP

No. of

Pins

Signal

Name

Signal State During

Type

Reset

Signal Description

2

VCAPC Supply

Supply

VCAPC—Connect each pin to a 2.2μF or greater bypass

capacitor in order to bypass the core logic voltage regulator,

required for proper chip operation. For more information,

please refer to Section 5.2.

1

VPP

Input

Input

VPP—This pin should be left unconnected as an open circuit

for normal functionality.

56F805 Technical Data, Rev. 15

10

Freescale Semiconductor

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