Compatible Systems RISC 2800i Instrukcja Użytkownika Pobierz pdf (Strona 18)

MPC7447A RISC Microprocessor Hardware Specifications, Rev. 5

18 Freescale Semiconductor

Electrical and Thermal Characteristics

Figure 5 provides the mode select input timing diagram for the MPC7447A. The mode select inputs are

sampled twice, once before and once after HRESET negation.

Figure 5. Mode Input Sample Timing Diagram

Figure 6 provides the input/output timing diagram for the MPC7447A.

Figure 6. Input/Output Timing Diagram

HRESET

Mode Signals

= Midpoint Voltage (OV

/2)

SYSCLK

1st Sample

2nd Sample

SYSCLK

All Inputs

= Midpoint Voltage (OV

/2)

All Outputs

KHOX

KHDV

(Except TS,

ARTRY, SHD0, SHD1)

All Outputs

ARTRY,

(Except TS

ARTRY, SHD0, SHD1)

KHOE

KHOZ

KHTSPZ

KHARPZ

KHARP

SHD1

SHD0,

KHOV

KHAV

KHDX

KHAX

IXKH

AXKH

KHTSX

KHTSV

KHARV

KHARX

IVKH

AVKH

MVKH

MXKH

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 55 56

MPC7447A 1
RISC Microprocessor 1
Hardware Specifications 1
2 Freescale Semiconductor 2
Overview 2
2Features 3
4 Freescale Semiconductor 4
Features 4
Freescale Semiconductor 5 5
6 Freescale Semiconductor 6
4 General Parameters 9
(continued) 10
5.2.1 Clock AC Specifications 14
Figure 5 16
Figure 4. AC Test Load 17
, SHD0, SHD1) 18
Figure 7 19
Figure 19 19
Figure 9. TRST Timing Diagram 20
6 Pin Assignments 22
7 Pinout Listings 23
8 Package Description 27
HCTE BGA package 28
Freescale Semiconductor 29 29
Package Description 29
HCTE LGA package 30
RoHS-Compliant BGA 31
A1 CORNER 33
9 System Design Information 34
38 Freescale Semiconductor 38
System Design Information 38
= 1.5 V, OV 39
= 1.8 V ± 5%, T 39
= 5°–85°C 39
40 Freescale Semiconductor 40
Freescale Semiconductor 41 41
Silicone Sheet (0.006 in.) 46
Bare Joint 46
Synthetic Grease 46
Freescale Semiconductor 47 47
Freescale Semiconductor 49 49
= (P– P 50
10 Document Revision History 52
11 Ordering Information 52
MC 7447A 53
11.3 Part Marking 54
Freescale Semiconductor 55 55
Ordering Information 55
How to Reach Us: 56

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