参数资料
型号: M74HC646RM13TR
厂商: STMICROELECTRONICS
元件分类: 总线收发器
英文描述: HC/UH SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
封装: SOP-24
文件页数: 12/15页
文件大小: 514K
代理商: M74HC646RM13TR
M74HC646
6/15
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
CL
(pF)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH tTHL Output Transition
Time
2.0
50
25
60
75
80
ns
4.5
7
12
15
20
6.0
6
10
13
15
tPLH tPHL Propagation Delay
Time (BUS - BUS)
2.0
50
74
150
190
195
ns
4.5
21
30
38
42
6.0
18
26
32
35
2.0
150
91
190
240
245
ns
4.5
26
38
48
52
6.0
22
32
41
48
tPLH tPHL Propagation Delay
Time (CLOCK -
BUS)
2.0
50
98
210
265
275
ns
4.5
28
42
53
60
6.0
24
36
45
50
2.0
150
116
250
315
325
ns
4.5
33
50
63
75
6.0
28
43
54
60
tPLH tPHL Propagation Delay
Time (SELECT -
BUS)
2.0
50
81
170
215
225
ns
4.5
23
34
43
56
6.0
20
29
37
45
2.0
150
98
210
265
275
ns
4.5
28
42
53
60
6.0
24
36
45
50
tPZL tPZH High Impedance
Output Enable
Time (G, DIR)
2.0
50
RL = 1 K
84
175
220
225
ns
4.5
24
35
44
50
6.0
20
30
37
45
2.0
150
RL = 1 K
102
215
270
280
ns
4.5
29
43
54
60
6.0
25
37
46
55
tPLZ tPHZ High Impedance
Output Disable
Time (G, DIR)
2.0
50
RL = 1 K
60
175
220
230
ns
4.5
23
35
44
50
6.0
20
30
37
45
fMAX
Maximum Clock
Frequency
2.0
50
6
19
4.8
4.0
MHz
4.5
30
67
24
20
6.0
35
79
28
25
tW(H)
tW(L)
Minimum Pulse
Width
2.0
50
30
75
95
100
ns
4.5
7
15
19
22
6.0
6
13
16
18
ts
Minimum Set-Up
Time
2.0
50
16
50
65
70
ns
4.5
4
10
13
15
6.0
3
9
11
13
th
Minimum Hold
Time
2.0
50
55
5
ns
4.5
5
6.0
5
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