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PDF DS1669S Data sheet ( Hoja de datos )
| Número de pieza | DS1669S | |
| Descripción | ELECTRONIC DIGITAL RHEOSTAT | |
| Fabricantes | Dallas Semiconducotr | |
| Logotipo |  |
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DS1668, DS1669, DS1669S
DS1668, DS1669, DS1669S
DallastatTM Electronic Digital Rheostat
FEATURES
• Replaces mechanical variable resistors
• Available as the DS1668 with manual interface or the
DS1669 integrated circuit
• Human engineered interface provides easy control
with DS1668
• Electronic interface provided for digital as well as
manual control
• Wide differential input voltage range between 4.5 and
8 volts
• Wiper position is maintained in the absence of power
• Low cost alternative to mechanical controls
• Applications include volume, tone, contrast, bright-
ness, and dimmer control
• 8–pin SOIC and 8–pin DIP packages for DS1669
• Standard resistance values for Dallastat
– DS1668/DS1669–10 ~ 10KΩ
– DS1668/DS1669–50 ~ 50KΩ
– DS1668/DS1669–100 ~ 100KΩ
• Operating Temperature Range
– Commercial: 0°C to 70°C; DS1668, DS1669
– Industrial: –40°C to +85°C; DS1669
PIN ASSIGNMENT DS1668
RH NC D
PIN 1
INDICATOR
654
123
TOP VIEW
+V RW -V
INTEGRATED
PUSHBUTTON
PIN ASSIGNMENT DS1669
(RH)
UC
D
(RL)
1
2
3
4
8
7
6
5
8-Pin DIP (300 Mil)
+V
DC
RW
–V
(RH)
UC
D
(RL)
1
2
3
4
8 +V
7 DC
6 RW
5 V-
8-Pin SOIC (208 Mil)
PIN DESCRIPTION DS1669
RH
RW
RL
-V, +V
- Resistor High End
- Resistor Wiper
- Resistor Low End
- Voltage Inputs
UC - Up Contact Input
D - Digital Input
DC - Down Contact Input
PIN DESCRIPTION DS1668
+V - Positive Voltage Input
-V - Negative Voltage
RW - Resistor Wiper
D - Digital Input
RH - Resistor High End
NC - No Connection - Pin Missing
ECopyright 1995 by Dallas Semiconductor Corporation.
All Rights Reserved. For important information regarding
patents and other intellectual property rights, please refer to
Dallas Semiconductor data books.
081895 1/10
1 page  
DS1668 DALLASTATTM BLOCK DIAGRAM Figure 3
+
D
UC
DC
DS1668, DS1669, DS1669S
INPUT
INTERPRETER
AND CONTROL
-
RL
SHADOW MEMORY
64 TO 1 MUXER
RH RHEOSTAT
NOTE: DOTTED LINE CONNECTIONS AND
COMPONENTS ARE INTERNAL TO
THE DS1668 AND DO NOT EXIST ON
RW THE DS1669.
FLOWCHART: ONE BUTTON OPERATION AND ELECTRICAL CONTROL Figure 4
CONTACT CLOSURE
(D OR UC)
INCREMENT/DECREMENT
1/64TH
NO
CONTACT CLOSED
CONTINUOUSLY
> 1 SEC ?
NO
YES
INCREMENT/DECREMENT
ON 100MS INTERVALS
LIMIT REACHED
OR
CONTACT OPEN
1 SEC ?
YES
REVERSE DIRECTION
CONTACT OPEN AND CONTACT CLOSURE TIMING IS 1s ± 10%
081895 5/10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet DS1669S.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| DS1669 | Dallastat Electronic Digital Rheostat |  Dallas Semiconductor |
| DS1669S | ELECTRONIC DIGITAL RHEOSTAT | Dallas Semiconducotr |
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