MPC7457 datasheet(68/71 Pages) FREESCALE

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MPC7457 RISC Microprocessor Hardware Specifications, Rev. 8

Document Revision History

Freescale Semiconductor

11 Document Revision History

Table 26 provides a revision history for this hardware specification.

Table 26. Document Revision History

Revision

Number

Date

Substantive Change(s)

04/09/2013

Updated template.

Updated Table 14 “L3 Bus Interface AC Timing Specifications for PB2 and Late Write SRAMs”.

Moved Revision History to the end of the document.

3/28/2006

Updated template.

Section 2, reworded L1 and L2 cache descriptions.

Removed note references for CI and WT in Table 12.

Added VG package signifier for 7457 only.

7/22/2005

Revised Note in Section 9.2.

Added heat sink vendor to list in Section 9.8.

Corrected bump and underfill model dimension in Section 9.8.3.

9/9/2004

Updated document to new Freescale template.

Updated section numbering and changed reference from part number specifications to addendums.

Added Rev. 1.2 devices, including increased L3 clock max frequency to 250 MHz and improved L3

AC timing.

Table 5: Added CTE information.

Table 8: Modified jitter specifications to conform to JEDEC standards, changed jitter specification to

cycle-to-cycle jitter (instead of long- and short-term jitter); changed jitter bandwidth

recommendations.

Table 13: Deleted note 9 and renumbered.

Table 14: Deleted note 5 and renumbered.

Table 17: Revised note 6.

Added Section 9.1.3.

Section 9.2: Changed filter resistor recommendations. Recommend 10

Ω resistor for all production

devices, including production Rev. 1.1 devices. 400

Ω resistor needed only for early Rev. 1.1

devices.

Table 22: Reversed the order of revision numbers.

Added Tables 25 and 26.

4.1

Section 9.1.1: Corrected note regarding different PLL configurations for earlier devices; all

MPC7457 devices to date conform to this table.

Section 9.6: Added information about unused L3_ADDR signals.

Table 24: Changed title to include document order information for MPC74x7RXnnnnNx series part

number specification.

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