MPC7445 datasheet(23/56 Pages) NXP

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MPC7447A RISC Microprocessor Hardware Specifications, Rev. 5

Freescale Semiconductor

Pinout Listings

Table 12 provides the pinout listing for the MPC7447A, 360 HCTE package. The pinouts of the

MPC7447A and MPC7447 are pin compatible, but there have been some changes. An MPC7447A may

be populated on a board designed for a MPC7447 provided all pins defined as ‘no connect’ for the

MPC7447 are unterminated as required by the MPC7457 RISC Microprocessor Hardware Specifications.

The MPC7447A uses pins previously marked ‘no connect’ for the temperature diode pins and for

additional power and ground connections. Because these ‘no connect’ pins in the MPC7447 360 pin

package are not driven in functional mode, an MPC7447 can be populated in an MPC7447A board. See

Section 9.4, “Connection Recommendations,” for additional information.

NOTE

Caution must be exercised when performing boundary scan test operations

on a board designed for an MPC7447A but populated with an MPC7447.

This is because in the MPC7447 it is possible to drive the latches associated

with the former ‘no connect’ pins in the MPC7447, potentially causing

contention on those pins. To prevent this, ensure that these pins are not

connected on the board or, if they are connected, ensure that the states of

internal MPC7447 latches do not cause these pins to be driven during board

testing.

NOTE

This pinout is not compatible with the MPC750, MPC7400, or MPC7410

360 BGA and LGA package.

Table 12. Pinout Listing for the MPC7447A, 360 HCTE Package

Signal Name

Pin Number

Active

I/O

I/F Select1

Notes

A[0:35]

E11, H1, C11, G3, F10, L2, D11, D1, C10, G2, D12,

L3, G4, T2, F4, V1, J4, R2, K5, W2, J2, K4, N4, J3, M5,

P5, N3, T1, V2, U1, N5, W1, B12, C4, G10, B11

High

I/O

BVSEL

AACK

Low

Input

BVSEL

AP[0:4]

C1, E3, H6, F5, G7

High

I/O

BVSEL

ARTRY

Low

I/O

BVSEL

AVDD

—

Input

N/A

Low

Input

BVSEL

BMODE0

Low

Input

BVSEL

BMODE1

Low

Input

BVSEL

Low

Output

BVSEL

High

Input

BVSEL

1, 6

Low

Output

BVSEL

CKSTP_IN

Low

Input

BVSEL

CKSTP_OUT

Low

Output

BVSEL

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