APR2SLASHD datasheet(75/101 Pages) NXP

75 / 101 page

MOTOROLA

DSP56001A/D, Rev. 1

4-1

SECTION

DESIGN CONSIDERATIONS

SUBSTITUTING THE DSP56001A FOR THE DSP56001

This section highlights the differences between the DSP56001 and DSP56001A that need to be

taken into consideration when substituting the DSP56001A for the DSP56001. New designs

should use the DSP56002 due to its enhanced features and speed.

Hardware Considerations

NON-MASKABLE INTERRUPT (NMI)

A Non-Maskable Interrupt (NMI) function was previously accessible on the DSP56001 by

applying 10 volts to the MODB/IRQB pin. The DSP56001A does not support a non-maskable

interrupt (NMI).

AC ELECTRICAL CHARACTERISTICS

The DSP56001A die utilizes a faster technology than the DSP56001. As a result, many

DSP56001A signals exhibit faster rise and fall times than the same signals on the DSP56001.

These faster edges may generate more radiated noise and EMI, and may require more attention

to these issues (e.g., the DSP56001A based circuit may require better decoupling).

CAUTION

DO NOT APPLY 10 VOLTS TO ANY PIN OF

THE

DSP56001A

(including

MODB)!

Subjecting any pin of the DSP56001A to

voltages in excess of the specified TTL/CMOS

levels will permanently damage the device.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

APR2/D 数据表(PDF) 75 Page - NXP Semiconductors