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Electrical Characteristics
MC68360 USER’S MANUAL
10.9 BUS OPERATION AC TIMING SPECIFICATIONS
Num.
Characteristic
Symbol
3.3 V/5.0 V
5.0V
Unit
25.0 MHz
33.34MHz
Min
Max
Min
Max
6
CLKO1 High to Address, FC, SIZ, RMC Valid
tCHAV
0
15
0
12
ns
6A
CLKO1 High to Address Valid (GAMX=1)
tCHAV
0
20
0
15
ns
7
CLKO1 High to Address, Data, FC, SIZ, RMC
High Impedance
tCHAZx
0
40
0
30
ns
8
CLKO1 High to Address, FC, SIZ, RMC Invalid
tCHAZn
0—
0
—
ns
9
CLKO1 Low to AS , DS , OE , WE , IFETCH, IPIPE,
IACK
Asserted
tCLSA
3
20
3
15
ns
910
CLKO1 Low to CS/RAS Asserted
tCLSA
4
16
4
12
ns
9B11
CLKO1 High to CS/RAS Asserted
tCHCA
4
16
4
12
ns
9A2,10
AS
to DS or CS/RAS or OE Asserted (Read)
tSTSA
–6
6
-5.625
5.625
ns
9C2,11
AS
to CS/RAS Asserted
tSTCA
14
26
9
21
ns
1110
Address, FC, SIZ, RMC Valid to AS , CS/RAS,
OE, WE
(and DS Read) Asserted
tAVSA
10
—
8
—
ns
11A11
Address, FC, SIZ, RMC Valid to CS/RAS As-
serted
tAVCA
30
—
ns
1212
CLKO1 Low to AS , DS , OE, WE, IFETCH,IPIPE,
IACK
Negated
tCLSN
3
20
3
15
ns
1216
CLKO1 Low to CS/RAS Negated
tCLSN
4
16
4
12
ns
12A13,16 CLKO1 High to CS/RAS Negated
tCHCN
4
16
4
12
ns
12B
CS negate to WE negate (CSNTQ=1)
tCSTW
15
—
12
—
ns
1312
AS
, DS , CS, OE , WE , IACKNegated to Ad-
dress, FC, SIZ Invalid (Address Hold)
tSNAI
10
—
7.5
—
ns
13A13
CS
Negated to Address, FC, SIZ Invalid (Ad-
dress Hold)
tCNAI
30
—
ns
1410,12
AS
, CS, OE, WE
(and DS Read) Width Asserted
tSWA
75
—
ns
14C11,13 CS Width Asserted
tCWA
35
—
ns
14A
DS
Width Asserted (Write)
tSWAW
35
—
ns
14B
AS
, CS, OE , WE , IACK(and DS Read) Width
Asserted (Fast Termination Cycle)
tSWDW
35
—
ns
14D13
CS
Width Asserted (Fast Termination Cycle)
tCWDW
15
—
10
—
ns
153,10,12 AS , DS , CS, OE, WE
Width Negated
tSN
35
—
ns
16
CLKO1 High to AS , DS , R/W High Impedance
tCHSZ
—
40
—
30
ns
1712
AS
, DS , CS, WENegated to R/W High
tSNRN
10
—
7.5
—
ns
17A13
CS
Negated to R/W High
tCNRN
30
—
ns
18
CLKO1 High to R/W High
tCHRH
0
20
0
15
ns
20
CLKO1 High to R/W Low
tCHRL
0
20
0
15
ns
2110
R/W High to AS , CS, OEAsserted
tRAAA
10
—
7.5
—
ns
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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