mc68331cpv20b1 Freescale Semiconductor, Inc, mc68331cpv20b1 Datasheet - Page 184

• Manufacturer Part Number: mc68331cpv20b1
• Description: Mc68331 32 Bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

A
A-8
2A, 3A ECLK Pulse Width
2B, 3B External Clock Input High/Low Time
4A, 5A Rise and Fall Time — All Outputs except CLKOUT
4B, 5B External Clock Rise and Fall Time
Num
12A
14A
14B
27A
29A
30A
2, 3
4, 5
1A
1B
9A
9C
F1
11
12
13
14
15
16
17
18
20
21
22
23
24
25
26
27
28
29
30
31
33
35
37
1
6
7
8
9
Frequency of Operation (32.768 kHz crystal)
Clock Period
ECLK Period
External Clock Input Period
Clock Pulse Width
Clock Rise and Fall Time
Clock High to Address, FC, SIZE, RMC Valid
Clock High to Address, Data, FC, SIZE, RMC High Impedance
Clock High to Address, FC, SIZE, RMC Invalid
Clock Low to AS, DS, CS Asserted
AS to DS or CS Asserted (Read)
Clock Low to IFETCH, IPIPE Asserted
Address, FC, SIZE, RMC Valid
Clock Low to AS, DS, CS Negated
Clock Low to IFETCH, IPIPE Negated
AS, DS, CS Negated to
AS, CS Width Asserted
DS, CS Width Asserted (Write)
AS, CS Width Asserted (Fast Write Cycle)
AS, DS, CS Width Negated
Clock High to AS, DS, R/W High Impedance
AS, DS, CS Negated to R/W Negated
Clock High to R/W High
Clock High to R/W Low
R/W Asserted to AS, CS Asserted
R/W Low to DS, CS Asserted (Write)
Clock High to Data Out Valid
Data Out Valid to Negating Edge of AS, CS
DS, CS Negated to Data Out Invalid (Data Out Hold)
Data Out Valid to DS, CS Asserted (Write)
Data In Valid to Clock Low (Data Setup)
Late BERR, HALT Asserted to Clock Low (Setup Time)
AS, DS Negated to DSACK[1:0], BERR, HALT, AVEC Negated
DS, CS Negated to Data In Invalid (Data In Hold)
DS, CS Negated to Data In High Impedance
CLKOUT Low to Data In Invalid (Fast Cycle Hold)
CLKOUT Low to Data In High Impedance
DSACK[1:0] Asserted to Data In Valid
Clock Low to BG Asserted/Negated
BR Asserted to BG Asserted (RMC Not Asserted)
BGACK Asserted to BG Negated
to AS, CS Asserted
Address, FC, SIZE Invalid (Address Hold)
(V
DD
Freescale Semiconductor, Inc.
Characteristic
and V
For More Information On This Product,
3
6
Table A-6 16.78 MHz AC Timing
ELECTRICAL CHARACTERISTICS
DDSYN
5
4
Go to: www.freescale.com
3
= 5.0 Vdc
9
7
7, 8
2
10%, V
7
7
10
SS
= 0 Vdc, T
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
BRAGA
t
t
t
t
t
t
t
t
t
DVASN
t
t
CLBAN
CHAZx
CHAZn
SWAW
SWDW
SNDOI
BELCL
t
t
t
t
t
t
t
t
t
t
t
CHAV
t
SNRN
CHRH
CHDO
SNDN
GAGN
XCHL
t
CLSA
STSA
AVSA
CLSN
CHSZ
CHRL
RAAA
RASA
DVSA
CLDH
t
ECW
CLIN
SNAI
SWA
DICL
SNDI
SHDI
CLDI
DADI
t
Ecyc
Xcyc
CLIA
t
XCrf
t
CW
cyc
Crf
t
SN
f
rf
A
= T
L
to T
0.13
59.6
59.6
29.8
Min
476
236
–15
100
24
15
15
45
40
40
15
15
70
15
15
15
20
15
H
—
—
—
—
—
—
—
—
—
0
0
0
2
2
2
2
0
0
5
0
0
1
1
)
USER’S MANUAL
16.78
Max
29
59
25
15
22
29
22
59
29
29
29
80
55
90
50
29
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
8
5
2
MC68331
MHz
Unit
t
t
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
cyc
cyc