MC68020EH25E Freescale Semiconductor, MC68020EH25E Datasheet - Page 55
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MC68020EH25E
Manufacturer Part Number
MC68020EH25E
Description
IC MPU 32BIT 33MHZ 132-PQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68020EH16E.pdf
(306 pages)
Specifications of MC68020EH25E
Processor Type
M680x0 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
132-MQFP, 132-PQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68020EH25E
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Table 5-4 lists the bytes required on the data bus for read cycles. The entries shown as
OP3, OP2, OP1, and OP0 are portions of the requested operand that are read or written
during that bus cycle and are defined by SIZ1, SIZ0, A1, and A0 for the bus cycle.
5-8
Byte
Word
3 Bytes
Long Word
Transfer
Size
SIZ1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Size
Table 5-4. Data Bus Requirements for Read Cycles
SIZ0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
A1
Address
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Freescale Semiconductor, Inc.
For More Information On This Product,
A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D31–D24
M68020 USER’S MANUAL
Go to: www.freescale.com
OP3
OP2
OP1
OP0
External Data Bytes
D23–D16
Long-Word Port
OP3
OP3
OP2
OP2
OP1
OP1
OP0
Required
D15–D8
OP3
OP3
OP2
OP3
OP2
OP1
OP2
OP1
OP0
D7–D0
OP3
OP3
OP2
OP3
OP2
OP1
OP3
OP2
OP1
OP0
External Data Bytes
D31–D24
OP3
OP3
OP2
OP2
OP1
OP1
OP0
OP0
Word Port
Required
D23–D16
OP3
OP3
OP3
OP3
OP2
OP2
OP2
OP1
OP2
OP1
OP1
OP0
OP1
OP0
Data Bytes
MOTOROLA
Byte Port
Required
D31–D24
External
OP3
OP3
OP3
OP3
OP2
OP2
OP2
OP2
OP1
OP1
OP1
OP1
OP0
OP0
OP0
OP0
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