
Electrical Characteristics
MOTOROLA
MC68360 USER’S MANUAL
10-51
10.16 040 BUS TYPE SLAVE MODE INTERNAL READ/WRITE/IACK
CYCLES AC ELECTRICAL SPECIFICATIONS
(The electrical specifications in this document are preliminary
NOTES:
1.Transfer attributes signals = SIZx, TTx, TMx, R/W, and LOCK.
2.When MC68040 is accessing the internal registers, specification 258 is from clock low not clock high.
Num.
Characteristic
3.3 V or 5.0 V
5.0V
Unit
25.0 MHz
33.34MHz
Min
Max
Min
Max
2511
Address, Transfer Attributes Valid to Clock Low
15
—
11.25
—
ns
252
TS
Low to Clock High
7
—
6
—
ns
253
Clock High to TS High
5
—
3
—
ns
254
Clock High to Address, Transfer Attributes Invalid
0
—
0
—
ns
255
Data-In, MBARE Valid to Clock High (040 Write)
0
—
0
—
ns
256
Clock High to Data-In, MBARE Hold Time
0
—
0
—
ns
257
Clock High to TA, TBILow (External to External)
4
20
4
15
ns
257
Clock High to TA, TBILow (External to Internal)
4
23
4
18
ns
2582
Clock High to TA, TBIHigh
4
20
4
15
ns
259
TA
, TBIHigh to TA, TBIHigh Impedance
—
15
—
11.25
ns
260
Clock Low to Data-Out Valid (040 Read)
—
20
—
15
ns
262
Clock Low to Data-Out Invalid
—
20
—
15
ns
263
Clock Low to Data-Out High Impedance
—
15
—
ns
264
Clock High to AVECO Low
—
20
—
15
ns
265
Clock Lowto AVECO High Impedance
—
30
—
23
ns
266
Clock Low to IACK Low
—
30
—
23
ns
267
Clock High to IACK High
—
30
—
23
ns
268
Clock Low to AVEC Low
—
30
—
23
ns