*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
PTR90 Series - 9 mm Multi-Ganged Potentiometer w/Rotary Switch
Product Dimensions
PTR904
23.3
±
0.5
(.917
±
.020)
PTR906
30.8
±
0.5
(1.213
±
.020)
PTR908
38.3
±
0.5
(1.508
±
.020)
M7XP0.75
SW
R4 R3
R2 R1
0.8
±
0.2
(.014
±
.007)
5.0
(.197)
SW
R6 R5
R4 R3
R2 R1
6.25
(.246)
2.5
(.098)
5.0
(.197)
6.25
(.246)
2.5
(.098)
5.0
(.197)
2.5
(.098)
5.0
(.197)
2.5
(.098)
M7XP0.75
0.8
±
0.2
(.014
±
.007)
5.0
(.197)
SW
R8 R7
R6 R5
R4 R3
R2 R1
M7XP0.75
0.8
±
0.2
(.014
±
.007)
6.25
(.246)
2.5
(.098)
5.0
(.197)
2.5
(.098)
5.0
(.197)
5.0
(.197)
2.5
(.098)
RECOMMENDED PCB LAYOUT
2.5
(.098)
6.25
(.246)
3
2
1
3
2
1
5.0
(.197)
2.5
(.098)
3
2
1
3
2
1
5.0
(.197)
RECOMMENDED PCB LAYOUT
2.5
(.098)
5.0
(.197)
2.5
(.098)
6.25
(.246)
3
3
2
1
3
2
1
3
2
1
2
1
2.5
(.098)
5.0
(.197)
5.0
(.197)
RECOMMENDED PCB LAYOUT
2.5
(.098)
2.5
(.098)
3
2
1
3
2
1
5.0
(.197)
2.5
(.098)
5.0
(.197)
5.0
(.197)
2.5
(.098)
5.0
(.197)
MOUNTING
SURFACE
DIA. HOLES
14 PLCS.
1.0 +0.2/-0
(.039 +.008/-0)
5.0
SW
(.197)
5.0
SW
(.197)
R4 R3
R2 R1
MOUNTING
SURFACE
DIA. HOLES
20 PLCS.
1.0 +0.2/-0
(.039 +.008/-0)
2.5
(.098)
6.25
(.246)
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
2.5
(.098)
3
2
1
3
2
1
R6 R5
R4 R3
R2 R1
5.0
(.197)
SCHEMATIC
3
3
3
3
SCHEMATIC
3
3
3
3
3
3
SW
MOUNTING
SURFACE
R8 R7
R6 R5
R4 R3
R2 R1
5.0
(.197)
2
DIA. HOLES
26 PLCS.
1.0 +0.2/-0
(.039 +.008/-0)
2
2 2
2
2
2 2
2 2
SCHEMATIC
3 3
3
3
3
3
3
3
1
SW
R4
1
R3
1
R2
1
R1
SW
1
1
1
1
1
1
2
2 2
2 2
2 2
2
R6 R5
R4 R3
R2 R1
DIMENSIONS:
MM
(INCHES)
1 1
SW
R8 R7
1 1
R6 R5
1 1
R4 R3
1 1
R2 R1
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
PTR90 Series - 9 mm Multi-Ganged Potentiometer w/Rotary Switch
Product Dimensions
SHAFT STYLE
"K"
SHAFT STYLE
"F"
L
±
B
18 TEETH
KNURL
F
0.5
(.020)
How To Order
PTR90 1 - 2 0 20 K - B 203
Model
• PTR90 = With
Rotary Switch
No. of Sections
• 1 = 1 Section
• 2 = 2 Sections
• 3 = 3 Sections
• 4 = 4 Sections
• 5 = 5 Sections
• 6 = 6 Sections
• 8 = 8 Sections
Pin Style
• 1 = PC Pins vertical/
down facing
and ±10 %
Total Resistance
Tolerance
•2=
PC Pins vertical/
down facing
and ±20 %
Total Resistance
Tolerance
L
±
B
0.5
(.020)
1.5
(.059)
A
1.0
(.039)
6.0 +0/-0.1
(.236 +0/-.004)
DIA.
30
°
9.5
±
0.3
(.374
±
.012)
6.0
(.236)
4.8
±
0.3
(.189
±
.012)
9.5
±
0.3
(.374
±
.012)
4.5
(.177)
4.5
(.177)
6.0 +0/-0.1
(.236 +0/-.004)
DIA.
60
°
4.8
±
0.3
(.189
±
.012)
6.5
±
0.3
(.256
±
.012)
0.8
(.031)
2.0
(.079)
0.8
(.031)
6.0
(.236)
3.5
(.138)
5.0
(.197)
0.8
(.031)
2.0
(.079)
0.8
(.031)
6.5
±
0.3
(.256
±
.012)
Center Detent Option
• 0 = No Detent
• 2 = Center Detent
3.5
(.138)
5.0
(.197)
Standard Shaft Length
• 15 = 15 mm
• 20 = 20 mm
• 25 = 25 mm
Shaft Styles
• K = Knurled Type Shaft (Metal)
18 Toothed Serration Type
• F = Flatted Metal Shaft
Resistance Taper (See Taper Charts)
Taper Series followed by Curve Number
Resistance Code (See Table)
Other shaft styles available.
SHAFT SHOWN IN CCW POSITION
SHAFT SHOWN IN CCW POSITION
L
B
A
15
(.591)
5
(.197)
6
(.236)
20
(.787)
7
(.276)
10
(.394)
25
(.984)
10
(.394)
12
(.472)
L
B
F
15
(.591)
5
(.197)
7
(.276)
20
(.787)
7
(.276)
12
(.472)
25
(.984)
10
(.394)
12
(.472)
DIMENSIONS:
MM
(INCHES)
Tapers
A Series Tapers
100
90
80
Terminal 1-2 Output Voltage
X 100 (%)
Terminal 1-3 Input Voltage
70
60
50
40
30
20
10
A6
A5
):
:
0A
A)
(3
(25
A4
A ) :
A3
(20
A):
(15
A
A):
(10
A): A1
(05
B Series Tapers
100
B1
C Series Tapers
100
): B
5
): B
(2B
3
): B
2
(B
):
(1B
B
):
90
80
Terminal 1-2 Output Voltage
X 100 (%)
Terminal 1-3 Input Voltage
70
60
50
40
30
20
10
90
80
Terminal 1-2 Output Voltage
X 100 (%)
Terminal 1-3 Input Voltage
70
60
50
40
30
20
10
(3
(25 0C):
C
C
(20 ): C 6
5
(15 C):
C) C4
:
(1 C3
(05 0C):
C
C)
:C
1
(5B
0
10
20
30
40
50
60
70
80
90
100
(4B
): B
4
(3B
0
10
20
30
40
50
60
70
80
90
100
0
10
20
30
40
50
60
70
80
90
100
Rotational Travel (%)
Rotational Travel (%)
Rotational Travel (%)
REV. 01/14
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
与51或者其他系列的单片机相比,PIC 单片机的中断机制有其特殊之处,针对我们一些初学者存在的一些问题和疑惑,我在此做一个个人总结,不当的地方,请站友们指正。
先摘引三个对PIC中断理解的回帖,然后我再对中断活动的过程、应该注意的事项、及一个疑惑进行较详细的总结和解释。
---------------
john frank :关于pic中断有些不明白的地方
借用大虾的程序;
;...[详细]