MPC7457 Hardware Specification Addendum for the MPC74n7RXnnnnNx Series, Rev. 3

2

Freescale Semiconductor

Features

Part numbers addressed in this document are listed in Table A.

2 Features

This section summarizes changes to the features of the MPC7457 described in the MPC7457 RISC Microprocessor

Hardware Specifications.

•

Power management

— 1.1-V processor core

3 General Parameters

•

Core power supply: 1.1 V ± 50 mV DC nominal

5.1 DC Electrical Characteristics

Table 4 provides the recommended operating conditions for the MPC7457 part numbers described herein.

Table A. Part Numbers Addressed by this Data Sheet

Freescale

Part Number

Operating Conditions

Significant Differences from

Hardware Specification

CPU

Frequency

(MHz)

(°C)

MC7447RX1000NB

1000

1.1 V ± 50 mV

0 to 105

Modified core frequency and voltage to reduce

power consumption, modified processor bus AC

timing.

MC7457RX1000NC

MC7447RX867NB

867

MC7457RX867NC

MC7447RX733NB

733

MC7457RX733NC

MC7447RX600NB

600

MC7457RX600NC

Characteristic

Symbol

Recommended

Value

Unit

Notes

Core supply voltage

1.1 V ± 50 mV

V

PLL supply voltage

1.1 V ± 50 mV

V

2

Notes:

1. These are the recommended and tested operating conditions. Proper device operation outside of these conditions is not

guaranteed.

2. This voltage is the input to the filter discussed in

MPC7457 RISC Microprocessor Hardware Specifications, Section 9.2, “PLL