MC68030FE33C Freescale Semiconductor, MC68030FE33C Datasheet - Page 568

• Manufacturer Part Number: MC68030FE33C
• Description: IC MPU 32BIT ENHANCED 132-CQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68030FE33C

• Processor Type: M680x0 32-Bit
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-CQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

12.8 POWER AND GROUND CONSIDERATIONS
MOTOROLA
the AS signal to determine if the address bus and data bus are valid in the
The instruction executed (IE) signal indicates the execution unit has just
finished processing an instruction. The IE signal asserts after STATUS ne-
gates from a one-clock cycle assertion. The assertion of IE also generates a
SAMPLE signal.
The external cycle start condition (ECSC) signal is used in conjunction with
current trace sample. Table 12-6 lists the possible combinations of AS and
The assertion of ECSC does not generate a SAMPLE signal.
trace circuit. These definitions are used by the PAL equations listed in Figure
The MC68030 is fabricated in Motorola's advanced HCMOS process, contains
nection to the MC68030 than is required for NMOS devices that operate at
ECSC and shows what parts of the traced address and data bus are valid.
Figure 12-24 shows the pin definitions for the PAL16R6 package used in the
approximately 275,000 total transistor sites, and is capable of operating at
clock frequencies of up to 33.33 MHz. While the use of CMOS for a device
containing such a large number of transistors allows significantly reduced
clock speed makes the characteristics of power supplied to the device very
important. The power supply must be able to supply large amounts of in-
stantaneous current when the MC68030 performs certain operations, and it
quirements, more detailed attention must be given to the power supply con-
slower clock rates.
12-25.
power consumption in comparison to an equivalent NMOS circuit, the high
must remain within the rated specification at all times. To meet these re-
AS
0
0
1
1
ECSC
0
1
1
Table 12-6. AS and ECSC Indications
0
Address Bits (A0-AT) are Valid
Address Bits (A8-A31) Are Invalid
Both Address and Data Bus Are Valid
Data Bus Is Invalid
MC68030 USER'S MANUAL
Both Address and Data Bus Are Valid
Both Address and Data Bus Are Invalid
m
Indicates
12-43
12