Freescale Semiconductor, Inc.
11.7 AC TIMING SPECIFICATIONS (Continued)
3.3 V or
5.0 V
3.3 V
8.39 MHz
5.0 V
16.78 MHz 25.16 MHz
Symbol Min Max Min Max Min Max
Num.
Characteristic
Unit
4
30
CLKOUT Low to Data-In Invalid (Fast
Termination Hold)
t
30
—
15
—
10
—
ns
CLDI
4
30A
CLKOUT Low to Data-In High Impendance
t
t
—
—
—
—
—
—
1
180
100
60
—
—
—
—
—
—
1
90
50
30
200
30
30
—
—
—
—
—
—
—
1
60
32
20
140
20
20
—
ns
CLDH
5
31
DSACK≈ Asserted to Data-In Valid
t
ns
DADI
31A DSACK≈ Asserted to DSACK≈ Valid (Skew)
ns
ns
DADV
32
33
34
HALT and RESET Input Transition Time
CLKOUT Low to BG Asserted
t
400
60
HRrf
t
ns
CLBA
CLBN
CLKOUT Low to BG Negated
t
60
ns
6
35
BR Asserted to BG Asserted (RMC Not
Asserted)
t
—
CLKOUT
BRAGA
37
39
BGACK Asserted to BG Negated
BG Width Negated
t
1
2
2.5
—
—
—
—
1
2
2.5
—
—
—
—
1
2
2.5 CLKOUT
GAGN
t
t
—
—
—
—
CLKOUT
CLKOUT
ns
GH
GA
39A BG Width Asserted
1
1
1
46
R/W Width Asserted (Write or Read)
t
300
180
150
90
100
60
RWA
46A R/ W Width Asserted (Fast Termination Write or
Read)
t
ns
RWAS
8
47A
Asynchronous Input Setup Time
t
t
15
30
—
—
—
60
—
60
—
—
—
8, 5
15
—
—
—
30
—
30
—
—
—
5
10
—
—
—
20
—
20
—
—
—
ns
AIST
AIHT
47B Asynchronous Input Hold Time
5,7
ns
ns
48
DSACK≈ Asserted to BERR, HALT Asserted
Data-Out Hold from CLKOUT High
t
DABA
DOCH
53
54
55
56
t
0
0
0
ns
CLKOUT High to Data-Out High Impedance
R/W Asserted to Data Bus Impedance Change
RESET Pulse Width (Reset Instruction)
t
—
—
—
ns
CHDH
RADC
HRPW
t
80
512
590
40
512
590
25
512
590
ns
t
CLKOUT
CLKOUT
56A RESET Pulse Width (Input from External
Device)
t
RPWI
57
70
71
BERR Negated to HALT Negated (Rerun)
t
0
0
—
60
—
0
0
—
30
—
0
0
—
20
—
ns
ns
ns
BNHN
CLKOUT Low to Data Bus Driven (Show Cycle)
t
t
SCLDD
SCLDS
Data Setup Time to CLKOUT Low (Show
Cycle)
30
15
10
72
80
81
82
83
84
Data Hold from CLKOUT Low (Show Cycle)
DSI Input Setup Time
DSI Input Hold Time
t
20
30
20
30
20
—
—
—
—
—
—
10
15
10
15
10
—
—
—
—
—
—
6
10
6
—
—
—
—
—
ns
ns
ns
ns
ns
ns
SCLDH
t
DSISU
t
DSIH
DSCLK Setup Time
t
10
6
DSCSU
DSCLK Hold Time
t
DSCH
DSO Delay Time
t
t
t
—
t
cyc
+ 16
cyc
+ 50
cyc
+ 25
DSOD
MOTOROLA
MC68340 USER’S MANUAL
11-9
For More Information On This Product,
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