Freescale Semiconductor, Inc.
11.7 AC TIMING SPECIFICATIONS (See notes (a), (b), (c), and (d) corresponding to part operation,
GND = 0 Vdc, TA = 0 to 70°C; see numbered notes; see Figures 11-2–11-11)
3.3 V or
5.0 V
3.3 V
5.0 V
8.39 MHz
16.78 MHz
25.16 MHz
Num.
Characteristic
Symbol
Min
0
Max
Min
0
Max
30
Min
0
Max
20
Unit
ns
6
7
CLKOUT High to Address, FC, SIZ, RMC Valid
t
60
CHAV
CLKOUT High to Address, Data, FC, SIZ, RMC
High Impedance
t
0
120
0
60
0
40
ns
CHAZx
8
CLKOUT High to Address, FC, SIZ, RMC
Invalid
t
0
3
—
0
3
—
0
3
—
ns
ns
CHAZn
9
9
CLKOUT Low to AS, DS, CS, IFETCH, IPIPE,
IACK≈ Asserted
t
t
60
30
20
CLSA
STSA
2
9A
AS to DS or CS Asserted (Read)
–30
30
30
—
–15
15
15
—
–6
10
6
ns
ns
11
12
13
14
Address, FC, SIZ, RMC Valid to AS, CS (and
DS Read) Asserted
t
—
AVSA
CLKOUT Low to AS, DS, CS, IFETCH,
IPIPE, IACK≈ Negated
t
3
60
—
3
30
—
3
20
—
ns
ns
CLSN
AS, DS, CS, IACK≈ Negated to Address, FC,
SIZ Invalid (Address Hold)
t
30
15
10
SNAI
SWA
AS, CS (and DS Read) Width Asserted
t
200
90
—
—
—
100
45
—
—
—
70
30
30
—
—
—
ns
ns
ns
14A DS Width Asserted (Write)
t
t
SWAW
SWDW
14B AS, CS, IACK≈ (and DS Read) Width Asserted
80
40
(Fast Termination Cycle)
3
15
AS, DS, CS Width Negated
t
80
—
30
0
—
120
—
40
—
15
0
—
60
—
30
30
—
—
30
—
30
—
10
0
—
40
—
20
20
—
—
20
—
ns
ns
ns
ns
ns
ns
ns
ns
ns
SN
16
CLKOUT High to AS, DS, R/W High Impedance
AS, DS, CS Negated to R/W High
CLKOUT High to R/W High
t
CHSZ
SNRN
CHRH
CHRL
RAAA
RASA
17
18
20
t
t
t
t
t
60
60
—
CLKOUT High to R/W Low
0
0
0
9
21
R/ W High to AS, CS Asserted
R/W Low to DS Asserted (Write)
CLKOUT High to Data-Out Valid
30
140
—
30
15
70
—
15
10
47
—
10
22
23
24
—
t
60
—
CHDO
Data-Out Valid to Negating Edge of AS, CS,
(Fast Termination Write)
t
DVASN
25
DS, CS, Negated to Data-Out Invalid (Data-Out
Hold)
t
30
—
15
—
10
—
ns
SNDOI
26
27
Data-Out Valid to DS Asserted (Write)
t
30
10
40
—
—
—
15
5
—
—
—
10
5
—
—
—
ns
ns
ns
DVSA
Data-In Valid to CLKOUT Low (Data Setup)
t
DICL
27A Late BERR, HALT, BKPT Asserted to CLKOUT
Low (Setup Time)
t
20
10
BELCL
28
AS, DS Negated to DSACK≈, BERR, HALT
Negated
t
0
0
160
—
0
0
80
—
60
0
0
50
—
40
ns
ns
ns
SNDN
4
29
DS, CS Negated to Data-In Invalid (Data-In
Hold)
t
SNDI
SHDI
4
29A
DS, CS Negated to Data-In High Impedance
t
—
120
—
—
11-8
MC68340 USER’S MANUAL
MOTOROLA
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