DSP56166ROM datasheet(15/63 Pages) MOTOROLA

15 / 63 page

PRELIMINARY - 6/15/93

DSP56166 Technical Data Sheet

MOTOROLA

Power Dissipation

(Vdd = 5.0 Vdc +/- 10%, TJ = -40 to +125

°C, CL = 50 pF + 1 TTL Load).

The DC electrical characteristics of this device are shown below.

In order to minimize the power dissipation, all unused digital inputs pins should be tied inactive to VDD or

Vss and all unused I/O pins should be tied inactive through a 10K

Ω resistor to VDD or Vss. All port A input

pins and bydirectional pins must have a valid state at all time when port A is released in order to minimize

power; those pins must then be pulled up or down or driven by another device.

When the codec is not used, VDDA should be connected to VDD and VssA to Vss, and all codec pins should

be left floating except Vref which should still be decoupled.

Conditions

Symbol

Typic

al(5V)

Unit

MHz

Digital Vdd with

Codec & PLL disabled

IDD

100

500

Digital Vdd WAIT Mode with

CODEC & PLL disabled

IDD

Conditions

Symbol

Typical

(5V)

Unit

STOP Mode with

PLL and CLKO disabled

IDD

400

µA

Digital current drawn by

the PLL when active

IDD

Analog Vdd with

CODEC enabled

IDDA

PDA

Analog Vdd with

CODEC disabled

IDDA

µA

PDA

375

µW

DSP56166ROM Datasheet(PDF) 15 Page - Motorola, Inc

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