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DS1844-010 参数 Datasheet PDF下载

DS1844-010图片预览
型号: DS1844-010
PDF下载: 下载PDF文件 查看货源
内容描述: 4通道数字电位器 [Quad Digital Potentiometer]
分类和应用: 电位器
文件页数/大小: 14 页 / 292 K
品牌: DALLAS [ DALLAS SEMICONDUCTOR ]
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DS1844
Quad Digital Potentiometer
www.dalsemi.com
FEATURES
§
Four independent, digitally controlled 64-
position potentiometers
§
Two interface control options
- 5-wire serial
- 2-wire addressable
§
Standard resistance values
- DS1844-010 10 kΩ
- DS1844-050 50 kΩ
- DS1844-100 100 kΩ
§
Mixed resistor value combinations (contact
factory for availability)
§
Operating Temperature Range
- Industrial: -40°C to +85°C
PIN ASSIGNMENT
PS
H2
H3
W3
L3
L2
W2
R/W, A0
A2, RST
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
H1
H0
W0
L0
L1
W1
SCL, CLK
SDA, D
IN
A1, D
OUT
20-Pin DIP (300-mil)
Device Description
20-Pin SOIC (300-mil)
20-Pin TSSOP (173-mil)
PIN DESCRIPTION
V
CC
PS
A0, A1, A2
SDA
SCL
R/
W
RST
D
IN
CLK
D
OUT
H
0
-H
3
L
0
-L
3
W
0
-W
3
GND
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2.7V to 5.5V
Port Select
Device Select Pins (2-Wire)
Serial Data I/O (2-Wire)
Serial Clock (2-Wire)
Read/Write enable (5-Wire)
Serial Port Reset Input (5-Wire)
Serial Port Data Input (5-Wire)
Serial Port Clock Input (5-Wire)
Cascade Data Output (5-Wire)
High-end Terminal of Pot
Low-end Terminal of Pot
Wiper Terminal of Pot
Ground
DESCRIPTION
The DS1844 Quad Digital Potentiometer is a four-channel, digitally controlled linear potentiometer. Each
potentiometer is comprised of 63 equi-resistive sections and has three terminals accessible to the user.
These include the high side terminals, H
X
, the wiper terminals, W
X
, and the low-side terminals, L
X.
The
wiper position on the resistor ladder is selected via an 8-bit register value. Communication and control of
the device are supported by two types of serial interface. These include a 5-wire I/O shift register
interface and a 2-wire addressable interface.
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