Compatible Systems RISC 2800i Uživatelský manuál stáhnout pdf (Strana 27)

MPC7447A RISC Microprocessor Hardware Specifications, Rev. 5

Freescale Semiconductor 27

Package Description

8 Package Description

The following sections provide the package parameters and mechanical dimensions for the HCTE

package.

8.1 Package Parameters for the MPC7447A, 360 HCTE BGA

The package parameters are as provided in the following list. The package type is 25 × 25 mm, 360-lead

high coefficient of thermal expansion ceramic ball grid array (HCTE).

Package outline 25 × 25 mm

Interconnects 360 (19 × 19 ball array – 1)

Pitch 1.27 mm (50 mil)

Minimum module height 2.72 mm

Maximum module height 3.24 mm

Ball diameter 0.89 mm (35 mil)

Coefficient of thermal expansion 12.3 ppm/°C

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Compatible Systems RISC 2800i Uživatelský manuál Strana 27