APR9SLASHD datasheet(22/101 Pages) NXP

номер детали	APR9/D

подробное описание детали	24-BIT DIGITAL SIGNAL PROCESSOR

PDF	101 Pages

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производитель	NXP [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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2-4

DSP56001A/D, Rev. 1

MOTOROLA

DSP56001A

AC Electrical Characteristics

AC ELECTRICAL CHARACTERISTICS

The timing waveforms in the AC Electrical Characteristics are tested with a VIL maximum of

0.5 V and a VIH minimum of 2.4 V for all pins, except EXTAL, RESET, MODA, and MODB. These

pins are tested using the input levels set forth in the DC electrical characteristics. AC timing

specifications that are referenced to a device input signal are measured in production with

respect to the 50% point of the respective input signal’s transition. DSP56001A output levels are

measured with the production test machine VOL and VOH reference levels set at 0.8 V and 2.0 V,

respectively.

INTERNAL CLOCKS

For each occurrence of TH, TL, TC or ICYC, substitute with the numbers in Table 2-6.

Figure 2-1 Signal Measurement Reference

Table 2-6

Internal Clocks

Characteristics

Symbol

Expression

Internal Operation Frequency

Internal Clock High Period

ETH

Internal Clock Low Period

ETL

Internal Clock Cycle Time

ETC

Instruction Cycle Time

ICYC

× T

VIH

VIL

Fall Time

Input

Signal

Note:

The midpoint is VIL + (VIH – VIL)/2.

Midpoint1

Low

High

Pulse Width

90%

50%

10%

Rise Time

AA0179

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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