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Table of Contents
MOTOROLA
M68060 USER’S MANUAL
xvii
11.1.4 Other Considerations................................................................................ 11-6
11.2 Using an MC68060 in an Existing MC68040 System ................................. 11-6
11.2.1 Power Considerations............................................................................... 11-6
11.2.1.1 DC to DC Voltage Conversion................................................................ 11-6
11.2.1.1.1 Linear Voltage Regulator Solution........................................................ 11-7
11.2.1.1.2 Switching Regulator Solution................................................................ 11-7
11.2.1.2 Input Signals During Power-Up Requirement....................................... 11-11
11.2.2 Output Hold Time Differences ................................................................11-11
11.2.3 Bus Arbitration ........................................................................................ 11-13
11.2.4 Snooping................................................................................................. 11-13
11.2.5 Special Modes ........................................................................................ 11-13
11.2.6 Clocking .................................................................................................. 11-14
11.2.7 PSTx Encoding ....................................................................................... 11-14
11.2.8 Miscellaneous Pullup Resistors .............................................................. 11-15
11.3 Example DRAM Access............................................................................11-15
11.4 Thermal Management..............................................................................11-17
11.5 Support Devices.......................................................................................11-20
Section 12
Electrical and Thermal Characteristics
12.1 Maximum Ratings ....................................................................................... 12-1
12.2 Thermal Characteristics .............................................................................. 12-1
12.3 Power Dissipation ....................................................................................... 12-1
12.4 DC Electrical Specifications (Vcc = 3.3 Vdc
±
5%) ..................................... 12-2
12.5 Clock Input Specifications (Vcc = 3.3 Vdc
±
5%)........................................12-3
12.6 Output AC Timing Specifications (Vcc = 3.3 Vdc
±
5%) ............................. 12-4
12.7 Input AC Timing Specifications (Vcc = 3.3 Vdc
±
5%) ................................ 12-6
Section 13
Ordering Information and Mechanical Data
13.1 Ordering Information ................................................................................... 13-1
13.2 Pin Assignments ......................................................................................... 13-1
13.2.1 MC68060, MC68LC060, and MC68EC060 Pin Grid Array (RC Suffix) .... 13-2
13.2.2 MC68060, MC68LC060, and MC68EC060 Quad Flat Pack (FE Suffix)... 13-3
13.3 Mechanical Data ......................................................................................... 13-4
Appendix A
MC68LC060
Appendix B
MC68EC060
B.1 Address Translation Differences...................................................................B-1
B.2 Instruction Differences ..................................................................................B-1
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