|
|
PDF DS1809 Data sheet ( Hoja de datos )
| Número de pieza | DS1809 | |
| Descripción | Dallastat | |
| Fabricantes | Dallas Semiconducotr | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de DS1809 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
www.dalsemi.com
DS1809
Dallastat
FEATURES
§ 64-position linear taper
§ Two nonvolatile wiper storage options
§ Operates from +2.7 to +5.5-volt supplies
§ Operating Temperature Range:
- Industrial: -40°C to +85°C
§ Electronic interface provides either digital or
pushbutton control
§ Low-cost alternative to mechanical solutions
§ Standard Resistance Values
- DS1809-010 10 kΩ
- DS1809-050 50 kΩ
- DS1809-100 100 kΩ
PIN ASSIGNMENT
RH 1
UC 2
STR 3
RL 4
8 VCC
7 DC
6 RW
5 GND
8-Pin DIP
8-Pin SOIC (150-mil)
8-Pin µSOP (118-mil)
PIN DESCIPTION
VCC - Supply Voltage
RH - High End of Resistor
RL - Low End of Resistor
RW - Wiper Terminal
UC - Up Control Input
DC - Down Control Input
STR - Storage Enable Input
GND
- Ground
DESCRIPTION
The DS1809 Dallastat is a nonvolatile digitally controlled potentiometer that provides 64 uniform wiper
positions over the entire resistor range; including the high-end and low-end terminals of the device. The
DS1809 is a low power, low voltage device capable of operating from power supplies of +2.7V to +5.5V.
The device is ideal for low-power, portable, or battery powered applications.
Wiper position is maintained in the absence of power. This is accomplished via the use of an EEPROM
cell array. The device provides for two storage methods, which include an auto-store capability and a
command-initiated storage function. The EEPROM cell array is specified to accept greater than 50k
writes. Storage of the wiper position is discussed in the Wiper Storage section of this datasheet.
Wiper positioning is controlled via a patented dual pushbutton (or contact closure) interface. For simple
pushbutton-controlled applications or CPU-generated control signals, external debounce circuitry is not
needed. The control interface will support both repetitive pulse inputs and continuous pulse (“push-and-
hold”) inputs. Repetitive pulse and continuous pulse control as well as timing diagrams are discussed in
the section entitled “OPERATION.”
1 of 8
101999
1 page  
DS1809
If during any pushbutton activity the STR input is activated, pushbutton operation will be suspended until
the storage of EEPROM has been completed. Once complete, pushbutton inputs, if still active, will
resume from the point of suspension. Command initiated storage operations will require a minimum of 4
ms to complete the storage operation. This 4 ms is measured from the rise of STR input (see Figure 5).
For applications not requiring or using the nonvolatile memory feature of the DS1809, it is recommended
that the STR input be connected to GND.
COMMAND INITIATED WIPER STORAGE - Figure 5
5 of 8
101999
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet DS1809.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| DS1800 | Dual Inverting Log Gain/Attenuator | Dallas Semiconducotr |
| DS1800-3 | AC-DC / Distributed Power Front-End 1U |  Emerson |
| DS1801 | Dual Audio Taper Potentiometer | Dallas Semiconducotr |
| DS1802 | Dual Audio Taper Potentiometer With Pushbutton Control | Dallas Semiconducotr |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |