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PDF ( 数据手册 , 数据表 ) 74HCT190

零件编号 74HCT190
描述 Presettable synchronous BCD decade up/down counter
制造商 Philips
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74HCT190 数据手册, 描述, 功能
INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT190
Presettable synchronous BCD
decade up/down counter
Product specification
File under Integrated Circuits, IC06
December 1990







74HCT190 pdf, 数据表
Philips Semiconductors
Presettable synchronous BCD decade
up/down counter
Product specification
74HC/HCT190
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
74HC
+25
40 TO +85
UNIT
40 TO +125
VCC
(V)
WAVEFORMS
min. typ. max. min. max. min. max.
tPHL/ tPLH propagation delay
CP to Qn
tPHL/ tPLH propagation delay
CP to TC
72 220
26 44
21 37
83 255
30 51
24 43
275
55
47
320
64
54
330 ns
66
56
385 ns
77
65
2.0 Fig.10
4.5
6.0
2.0 Fig.10
4.5
6.0
tPHL/ tPLH propagation delay
CP to RC
44 150
16 30
13 26
190
38
33
225 ns
45
38
2.0 Fig.11
4.5
6.0
tPHL/ tPLH propagation delay
CE to RC
tPHL/ tPLH propagation delay
Dn to Qn
33 130
12 26
10 22
63 220
23 44
18 37
165
33
28
275
55
47
195 ns
39
33
330 ns
66
56
2.0 Fig.11
4.5
6.0
2.0 Fig.12
4.5
6.0
tPHL/ tPLH propagation delay
PL to Qn
63 220
23 44
18 37
275
55
47
330 ns
66
56
2.0 Fig.13
4.5
6.0
tPHL/ tPLH propagation delay
U/D to TC
tPHL/ tPLH propagation delay
U/D to RC
44 190
16 38
13 32
50 210
18 42
14 36
240
48
41
265
53
45
285 ns
57
48
315 ns
63
54
2.0 Fig.14
4.5
6.0
2.0 Fig.14
4.5
6.0
tTHL/ tTLH output transition time
19 75
7 15
6 13
95
19
16
110 ns
22
19
2.0 Fig.15
4.5
6.0
tW clock pulse width 155 28
HIGH or LOW
31 10
26 8
tW parallel load pulse width 100 25
LOW
20 9
17 7
195 235 ns 2.0 Fig.10
39 47
4.5
33 40
6.0
125 150 ns 2.0 Fig.15
25 30
4.5
21 26
6.0
December 1990
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