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參數資料
型號: MC68HC11A8BCFU2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS Single-Chip Microcontroller
中文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP64
封裝: QFP-64
文件頁數: 142/158頁
文件大小: 776K
代理商: MC68HC11A8BCFU2
MOTOROLA
A-22
ELECTRICAL CHARACTERISTICS
MC68HC11A8
TECHNICAL DATA
A
NOTES:
1.All timing is shown with respect to 20% V
DD
and 70% V
DD
, unless otherwise noted.
2.Signal production depends on software.
3.Assumes 200 pF load on all SPI pins.
Table A-8 Serial Peripheral Interface (SPI) Timing
V
DD
= 5.0 Vdc
±
10%, V
SS
= 0 Vdc, T
A
= T
L
to T
H
Characteristic
Num
Symbol
2.0 MHz
Min
3.0 MHz
Min
Unit
Max
Max
Operating Frequency
Master
Slave
Cycle Time
Master
Slave
Enable Lead Time
Master
Slave
Enable Lag Time
Master
Slave
Clock (SCK) High Time
Master
Slave
Clock (SCK) Low Time
Master
Slave
Data Setup Time (Inputs)
Master
Slave
Data Hold Time (Inputs)
Master
Slave
Access Time (Time to Data Active from High-
Impedance State)
Slave
Disable Time (Hold Time to High-Impedance State)
Slave
Data Valid (After Enable Edge)(Note 3)
Data Hold Time (Outputs) (After Enable Edge)
Rise Time (20% V
DD
to 70% V
DD
, CL = 200 pF)
SPI Outputs (SCK, MOSI, and MISO)
SPI Inputs (SCK, MOSI, MISO, and SS)
Fall Time (70% V
DD
to 20% V
DD
, C
L
= 200 pF)
SPI Outputs (SCK, MOSI, and MISO)
SPI Inputs (SCK, MOSI, MISO, and SS)
f
op(m)
f
op(s
)
dc
dc
0.5
2.0
dc
dc
0.5
3.0
f
op
MHz
1
t
cyc(m)
t
cyc(s)
2.0
500
2.0
333
t
cyc
ns
2
(Note 2)
t
lead(m)
t
lead(s)
250
240
ns
ns
3
(Note 2)
t
lag(m)
t
lag(s)
250
240
ns
ns
4
t
w(SCKH)m
t
w(SCKH)s
340
190
227
127
ns
ns
5
t
w(SCKL)m
t
w(SCKL)s
340
190
227
127
ns
ns
6
t
su(m)
t
su(s)
100
100
100
100
ns
ns
7
t
h(m)
t
h(s)
100
100
100
100
ns
ns
8
t
a
0
120
0
120
ns
9
t
dis
t
v(s)
t
ho
0
240
240
0
167
167
ns
ns
ns
10
11
12
t
rm
t
rs
100
2.0
100
2.0
ns
μ
s
13
t
fm
t
fs
100
2.0
100
2.0
ns
μ
s
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