EB346 datasheet(4/6 Pages) MOTOROLA

4 / 6 page

DSP56302 and DSP56309 Functional Differences

A pinout for the 196-pin PBGA package is included in the DSP56309 Technical Data Sheet. This package

will include the split power configuration described for the 144-pin TQFP package.

I/O Power Changes

The DSP56302 supports 5 V inputs for its peripherals. Complete requirements are described in the

DSP56302 Technical Data Sheet.

The DSP56309 supports 3.3 V inputs. Detailed voltage requirements are included in the DSP56309

Technical Data Sheet.

PLL Input Capacitor (CPCAP)

The process change results in a changed requirement for computing the size of CPCAP, the capacitor used

with the PCAP input. Table 1 lists the new formulas for computing the value of this input capacitor for the

DSP56309.

Table 2. Pin Differences between DSP56302 and DSP56309 (144-pin TQFP package)

Pin Name

DSP56302

DSP56309

VCCQ

VCCQL

VCCQH

VCCQ

VCCQL

VCCQ

VCCQL

VCCA

VCCQH

126

VCCQ

VCCQL

VCCQ = input voltage for core logic

VCCQL = independent input voltage for core logic

NC = not connected

VCCQH = independent input voltage for I/O lines

VCCA = voltage for external address lines

Unlisted pins are the same for both chips.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

EB346 Datasheet(PDF) 4 Page - Motorola, Inc