MPC7457 datasheet(11/71 Pages) FREESCALE

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General Parameters

MPC7457 RISC Microprocessor Hardware Specifications, Rev. 8

Freescale Semiconductor

General Parameters

The following list provides a summary of the general parameters of the MPC7457:

Technology

0.13

μm CMOS, nine-layer metal

Die size

9.1 mm × 10.8 mm

Transistor count

58 million

Logic design

Fully-static

Packages

MPC7447: Surface mount 360 ceramic ball grid array (CBGA)

MPC7457: Surface mount 483 ceramic ball grid array (CBGA)

Core power supply

1.3 V ±50 mV DC nominal

I/O power supply

1.8 V ±5% DC, or

2.5 V ±5% DC, or

1.5 V ±5% DC (L3 interface only, not implemented on MPC7447)

Electrical and Thermal Characteristics

This section provides the AC and DC electrical specifications and thermal characteristics for the

MPC7457.

5.1

DC Electrical Characteristics

The tables in this section describe the MPC7457 DC electrical characteristics.Table 2 provides the

absolute maximum ratings.

Cache level

L3L3L3

Total SRAM space supported

1 MB, 2MB, 4 MB 2

1 MB, 2 MB

On-chip tag logical size (cache space)

1 MB, 2 MB

Associativity

8-way

Number of 32-byte sectors/line

2, 4

Off-Chip data SRAM support

MSUG2 DDR, LW, PB2

Data path width

Direct mapped SRAM sizes

1 MB, 2 MB, 4 MB

1 MB, 2 MB

Parity

Byte

Notes:

1. Not implemented on MPC7447, MPC7445, or MPC7441.

2. The MPC7457 supports up to 4 MB of SRAM, of which a maximum of 2 MB can be configured as cache memory; the

remaining 2 MB may be unused or configured as private memory.

Table 1. Microarchitecture Comparison (continued)

Microarchitectural Specs

MPC7457/MPC7447

MPC7455/MPC7445

MPC7450/MPC7451/

MPC7441

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