MPC7445 datasheet(9/64 Pages) FREESCALE

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MPC7455 RISC Microprocessor Hardware Specifications, Rev. 4.1

Freescale Semiconductor

General Parameters

The following list provides a summary of the general parameters of the MPC7455:

Technology

0.18 µ m CMOS, six-layer metal

Die size

8.69 mm

× 12.17 mm (106 mm2)

Transistor count

33 million

Logic design

Fully-static

Packages

MPC7445: Surface mount 360 ceramic ball grid array (CBGA)

MPC7455: 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)

Cache level

L2 tags and controller

only (see off-chip cache

support below)

Size/associativity

256-Kbyte/8-Way

Access width

256 Bits

Number of 32-byte sectors/line

Parity

Byte

Off-Chip Cache Support 2

Cache level

L3L3L2

On-chip tag logical size

1MB, 2MB

0.5MB, 1MB, 2MB

Associativity

8-Way

2-Way

Number of 32-byte sectors/line

2, 4

1, 2, 4

Off-chip data SRAM support

MSUG2 DDR, LW, PB2 MSUG2 DDR, LW, PB2

LW, PB2, PB3

Data path width

Direct mapped SRAM sizes

1 Mbyte, 2 Mbytes

0.5 Mbyte, 1 Mbyte,

2Mbytes 3

Parity

Byte

Notes:

1. Numbers in parentheses are for 2:1 SRAM.

2. Not implemented on MPC7445 or MPC7441.

3. Private memory feature not implemented on MPC7400.

Table 1. Microarchitecture Comparison (continued)

Microarchitectural Specs

MPC7455/MPC7445

MPC7450/MPC7451/

MPC7441

MPC7400/MPC7410

MPC7445 数据表(PDF) 9 Page - Freescale Semiconductor, Inc

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