參數(shù)資料
型號(hào): MC68HC11D3CFB1
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQFP44
封裝: QFP-44
文件頁(yè)數(shù): 17/131頁(yè)
文件大小: 1640K
代理商: MC68HC11D3CFB1
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MC68HC11D3
ELECTRICAL CHARACTERISTICS
MOTOROLA
TECHNICAL DATA
A-9
NOTES:
duty cycle are identified by (a) and (b). To recalculate the approximate bus timing values, substitute the following
expressions in place of 1/8 tcyc 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% VDD and 70% VDD, unless otherwise noted.
Table A-6 Expansion Bus Timing
Num
Characteristic
Symbol
1.0 MHz
2.0 MHz
3.0 MHz
Unit
Min
Max
Min
Max
Min
Max
Frequency of Operation (E-Clock
Frequency)
fo
dc
1.0
dc
2.0
dc
3.0
MHz
1
Cycle Time
tcyc
1000
500
333
ns
2
Pulse Width, E Low
PWEL = 1/2 tcyc - 23ns
PWEL
477
227
146
ns
3
Pulse Width, E High
PWEH = 1/2 tcyc - 28 ns
PWEH
472
222
141
ns
4A
4B
E and AS Rise Time
E and AS Fall Time
tr
tf
20
20
20
15
ns
9
Address Hold Time
tAH = 1/8 tcyc - 29.5 ns
(Note 1a)
tAH
95.5
33
26
ns
12
Non-Muxed Address Valid Time to E Rise
tAV = PWEL - (tASD + 80 ns)
(Note 1a)
tAV
281.5
94
54
ns
17
Read Data Setup Time
tDSR
30
30
30
ns
18
Read Data Hold Time (Max = tMAD)tDHR
0
145.5
0
83
0
51
ns
19
Write Data Delay Time
tDDW = 1/8 tcyc + 65.5 ns
(Note 1a)
tDDW
190.5
128
71
ns
21
Write Data Hold Time
tDHW = 1/8 tcyc - 30 ns
(Note 1a)
tDHW
95.5
33
26
ns
22
Muxed Address Valid Time to E Rise
tAVM = PWEL - (tASD + 90 ns) (Note 1a)
tAVM
271.5
84
54
ns
24
Muxed Address Valid Time to AS Fall
tASL = PWASH - 70 ns
tASL
151
26
13
ns
25
Muxed Address Hold Time
tAHL = 1/8 tcyc - 30 ns
(Note 1b)
tAHL
95.5
33
31
ns
26
Delay Time, E to AS Rise
tASD = 1/8 tcyc - 5 ns
(Note 1a)
tASD
115.5
53
31
ns
27
Pulse Width, AS High
PWASH = 1/4 tcyc - 30 ns
PWASH
221
96
63
ns
28
Delay Time, AS to E Rise
tASED = 1/8 tcyc - 5 ns
(Note 1b)
tASED
115.5
53
31
ns
29
MPU Address Access Time
(Note 1a)
tACCA = tcyc – (PWEL– tAVM) – tDSR–tf
tACCA
744.5
307
196
ns
35
MPU Access Time
tACCE = PWEH - tDSR
tACCE
442
192
111
ns
36
Muxed Address Delay
(Previous Cycle MPU Read)
tMAD = tASD + 30 ns(Note 1a)
tMAD
145.5
83
51
ns
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