參數(shù)資料
型號: DS1809U-010+T&R
廠商: Maxim Integrated Products
文件頁數(shù): 1/9頁
文件大?。?/td> 0K
描述: IC DALLASTAT 10K 8-USOP
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 3,000
系列: Dallastat™
接片: 64
電阻(歐姆): 10k
電路數(shù): 1
溫度系數(shù): 標準值 750 ppm/°C
存儲器類型: 非易失
接口: 上/下
電源電壓: 4.5 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應商設備封裝: 8-uMAX
包裝: 帶卷 (TR)
1 of 9
011501
FEATURES
64-position linear taper
Two nonvolatile wiper storage options
Operates from +4.5 to +5.5-volt supplies
Operating Temperature Range:
- Industrial: -40
C to +85C
Electronic interface provides either digital or
pushbutton control
Low-cost alternative to mechanical solutions
Standard Resistance Values
- DS1809-010
10 k
- DS1809-050
50 k
- DS1809-100
100 k
PIN DESCRIPTION
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
PIN ASSIGNMENT
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 device capable of operating from power supplies of +4.5V 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 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.”
DS1809
Dallastat
www.dalsemi.com
RH
1
8
VCC
UC
2
7
DC
STR
3
6
RW
RL
4
5
GND
8-Pin DIP
8-Pin SOIC (150-mil)
8-Pin μSOP (118-mil)
相關PDF資料
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