MC68EC040RC25 Freescale Semiconductor, MC68EC040RC25 Datasheet - Page 367

• Manufacturer Part Number: MC68EC040RC25
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC040RC25

• Family Name: M68000
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 25MHz
• Instruction Set Architecture: RISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 179
• Package Type: PGA
• Lead Free Status / Rohs Status: Supplier Unconfirmed

When the MC68LC040 writes or reads a stack frame, it uses long-word operand transfers
wherever possible. Using a long-word-aligned stack pointer greatly enhances exception pro-
cessing performance. The processor does not necessarily read or write the stack frame data
in sequential order. The system software should not depend on a particular exception gen-
erating a particular stack frame. For compatibility with future devices, the software should be
able to handle any format of stack frame for any type of exception. The MC68LC040 does
not generate the floating-point post-instruction stack frame. The MC68040 cannot accept the
eight-word unimplemented stack frame. The MC68LC040 can handle all MC68040 stack
frame formats.
A.6 MC68LC040 ELECTRICAL CHARACTERISTICS
The following paragraphs provide information on the maximum rating and thermal charac-
teristics for the MC68LC040. This section is subject to change. For the most recent specifi-
cations, contact a Motorola sales office or complete the registration card at the end of this
manual.
A.6.1 Maximum Ratings
A.6.2 Thermal Characteristics
MOTOROLA
Supply Voltage
Input Voltage
Maximum Operating Junction Temperature
Minimum Operating Ambient Temperature
Storage Temperature Range
SP
+$0C
+$02
+$06
+$08
15
0100
Characteristic
EFFECTIVE ADDRESS
Thermal Resistance, Junction to Case—
PGA Package
PROGRAM COUNTER
STATUS REGISTER
PC OF FAULTED
INSTRUCTION
Table 12-1. Eight-Word Stack Frame (Format $4)
VECTOR OFFSET
Freescale Semiconductor, Inc.
For More Information On This Product,
Characteristic
Go to: www.freescale.com
M68040 USER’S MANUAL
Symbol
V
T
V
T
T
0
CC
stg
in
A
J
The MC68040 cannot
generate or read this stack.
–0.3 to +7.0
–0.5 to +7.0
–55 to 150
Value
110
0
Symbol
JC
Unit
V
V
C
C
C
MC68LC040
Value
3
This device contains protective
circuitry against damage due to
high static voltages or electrical
fields; however, it is advised that
normal precautions be taken to
avoid application of any voltages
higher
voltages to this high-impedance
circuit. Reliablity of operation is
enhanced if unused inputs are
tied
voltage level (e.g., either GND or
V
CC
).
Effective address field is
the address of the faulted
to
instruction operand.
Rating
than
an
REV2.3 (01/29/2000)
C/W
appropriate
maximum-rated
logic
A-7