mc68331cpv20b1 Freescale Semiconductor, Inc, mc68331cpv20b1 Datasheet - Page 200

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

A
Notes:
1 All AC timing is shown with respect to 20% V
2. In formula, n = External SCK rise + External SCK fall time
3. Data can be recognized properly with longer transition times as long as MOSI/MISO signals from external sources
A-24
Num
10
11
12
13
are at valid V
point voltages of the data and clock signals can differ, which can corrupt data if slower transition times are used.
1
2
3
4
5
6
7
8
9
Operating Frequency
Cycle Time
Enable Lead Time
Enable Lag Time
Clock (SCK) High or Low Time
Sequential Transfer Delay
Data Setup Time (Inputs)
Data Hold Time (Inputs)
Slave Access Time
Slave MISO Disable Time
Data Valid (after SCK Edge)
Data Hold Time (Outputs)
Rise Time
Fall Time
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave (Does Not Require Deselect)
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Input
Output
Input
Output
OH
3
3
2
/V
(V
OL
DD
prior to SCK transitioning between valid V
Function
= 5.0 V
Freescale Semiconductor, Inc.
dc
For More Information On This Product,
10%, V
ELECTRICAL CHARACTERISTICS
Table A-9 QSPI Timing
SS
Go to: www.freescale.com
= 0 Vdc, T
DD
and 70% V
Symbol
t
t
qcyc
t
t
f
lead
t
t
t
t
t
t
t
lag
t
dis
t
op
sw
t
ho
t
su
td
hi
ro
fo
a
ri
v
fi
A
= T
L
DD
to T
2 t
2 t
levels unless otherwise noted.
OL
cyc
H
Min
cyc
DC
DC
17
13
30
20
20
—
—
—
—
—
—
—
—
—
, 200 pF load on all QSPI pins)
4
4
2
2
2
0
0
0
and V
– 60
– n
OH
. Due to process variation, logic decision
255 t
8192
Max
510
128
1/4
1/4
1/2
—
—
—
—
—
—
—
—
—
50
50
—
—
30
30
1
2
2
2
cyc
System Clock Frequency
System Clock Frequency
USER’S MANUAL
SCK
Unit
t
t
t
t
t
t
t
t
t
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
s
s
MC68331