參數(shù)資料
型號： MC68HC11F1FB3
廠商： 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述： ROM-based high-performance microcontrollers
中文描述： 基于ROM的高性能微控制器
文件頁數(shù)： 113/124頁
文件大小： 840K
代理商： MC68HC11F1FB3
ELECTRICAL CHARACTERISTICS
TECHNICAL DATA
A-9
NOTES:
1. Input clocks with duty cycles other than 50% affect bus performance. Timing parameters affected by input clock
duty cycle are identified by (a) and (b). To recalculate the approximate bus timing values, substitute the following
expressions in place of 1/8 t
cyc
in the above formulas, where applicable:
(a) (1-DC)
×
1/4 t
cyc
(b) DC
×
1/4 t
cyc
Where:
DC is the decimal value of duty cycle percentage (high time).
2. All timing is shown with respect to 20% V
DD
and 70% V
DD
, unless otherwise noted.
Table A-6 Expansion Bus Timing
Num
Characteristic
Symbol
1.0 MHz
Min
dc
2.0 MHz
Min
dc
3.0 MHz
Min
dc
Unit
Max
1.0
Max
2.0
Max
3.0
Frequency of Operation (E-Clock
Frequency)
Cycle Time
Pulse Width, E Low
PW
EL
= 1/2 t
cyc
-
23ns
Pulse Width, E High
PW
EH
= 1/2 t
cyc
-
28 ns
E and AS Rise Time
E and AS Fall Time
Address Hold Time
t
AH
= 1/8 t
cyc
-
29.5 ns
Non-Muxed Address Valid Time to E Rise
t
AV
= PW
EL
-
(t
ASD
+ 80 ns)
Read Data Setup Time
Read Data Hold Time (Max = t
MAD
)
Write Data Delay Time
t
DDW
= 1/8 t
cyc
+ 65.5 ns
Write Data Hold Time
t
DHW
= 1/8 t
cyc
-
30 ns
Muxed Address Valid Time to E Rise
t
AVM
= PW
EL -
(t
ASD
+ 90 ns) (Note 1a)
Muxed Address Valid Time to AS Fall
t
ASL
= PW
ASH
-
70 ns
Muxed Address Hold Time
t
AHL
= 1/8 t
cyc
-
30 ns
Delay Time, E to AS Rise
t
ASD
= 1/8 t
cyc
-
5 ns
Pulse Width, AS High
PW
ASH
= 1/4 t
cyc
-
30 ns
Delay Time, AS to E Rise
t
ASED
= 1/8 t
cyc
-
5 ns
MPU Address Access Time
t
ACCA
= t
cyc
– (PW
EL
– t
AVM
) – t
DSR
–t
f
MPU Access Time
t
ACCE
= PW
EH
-
t
DSR
Muxed Address Delay
(Previous Cycle MPU Read)
t
MAD
= t
ASD
+ 30 ns(Note 1a)
f
o
MHz
1
2
t
cyc
PW
EL
1000
477
—
—
500
227
—
—
333
146
—
—
ns
ns
3
PW
EH
472
—
222
—
141
—
ns
4A
4B
9
t
r
t
f
—
—
95.5
20
20
—
—
—
33
20
20
—
—
—
26
20
15
—
ns
ns
ns
(Note 1a)
t
AH
12
(Note 1a)
t
AV
281.5
—
94
—
54
—
ns
17
18
19
t
DSR
t
DHR
t
DDW
30
0
—
—
30
0
—
—
83
128
30
0
—
—
51
71
ns
ns
ns
145.5
190.5
(Note 1a)
21
(Note 1a)
t
DHW
95.5
—
33
—
26
—
ns
22
t
AVM
271.5
—
84
—
54
—
ns
24
t
ASL
151
—
26
—
13
—
ns
25
(Note 1b)
t
AHL
95.5
—
33
—
31
—
ns
26
(Note 1a)
t
ASD
115.5
—
53
—
31
—
ns
27
PW
ASH
221
—
96
—
63
—
ns
28
(Note 1b)
(Note 1a)
t
ASED
115.5
—
53
—
31
—
ns
29
t
ACCA
744.5
—
307
—
196
—
ns
35
t
ACCE
—
442
—
192
—
111
ns
36
t
MAD
145.5
—
83
—
51
—
ns
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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