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參數資料
| 型號： | CAT5251WI-50TE13 |
| 元件分類： | 數字電位計 |
| 英文描述： | Quad Digitally Programmable Potentiometer (DPP) with 256 Taps and SPI Interface |
| 中文描述： | 四數字可編程電位（民進黨）與256水龍頭和SPI接口 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 95K |
| 代理商： | CAT5251WI-50TE13 |
1
DESCRIPTION
The CAT5251 is four Digitally Programmable
Potentiometers (DPPs) integrated with control logic
and 16 bytes of NVRAM memory. Each DPP consists of
a series of resistive elements connected between two
externally accessible end points. The tap points between
each resistive element are connected to the wiper outputs
with CMOS switches. A separate 8-bit control register
(WCR) independently controls the wiper tap switches for
each DPP. Associated with each wiper control register
are four 8-bit non-volatile memory data registers (DR)
used for storing up to four wiper settings. Writing to the
wiper control register or any of the non-volatile data
CAT5251
Quad Digitally Programmable Potentiometer (DPP) with
256 Taps and SPI Interface
FEATURES
I
Four linear-taper digitally programmable
potentiometers
I
256 resistor taps per potentiometer
I
End to end resistance 50k
or 100k
I
Potentiometer control and memory access via
SPI interface
I
Low wiper resistance, typically 100
I
Nonvolatile memory storage for up to four wiper
settings for each potentiometer
I
Automatic recall of saved wiper settings at
power up
I
2.5 to 6.0 volt operation
I
Standby current less than 1
μ
A
I
1,000,000 nonvolatile WRITE cycles
I
100 year nonvolatile memory data retention
I
24-lead SOIC and 24-lead TSSOP
I
Industrial temperature range
PIN CONFIGURATION
FUNCTIONAL DIAGRAM
2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Document No. 2017, Rev. D
registers is via a SPI serial bus. On power-up, the
contents of the first data register (DR0) for each of the
four potentiometers is automatically loaded into its
respective wiper control register.
The CAT5251 can be used as a potentiometer or as a
two terminal, variable resistor. It is intended for circuit
level or system level adjustments in a wide variety of
applications. It is available in the -40
°
C to 85
°
C industrial
operating temperature range and offered in a 24-lead
SOIC and TSSOP package.
H
A
L
O
G
E
N
F
R
E
TM
L
E
A
D
F
R
E
E
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
CAT
5251
SO
A0
RW3
RH3
RL3
NC
VCC
RL0
RH0
RW0
CS
WP
HOLD
SCK
RL2
RH2
RW2
NC
GND
RW1
RH1
RL1
A1
SI
SOIC/TSSOP Package (J, W/U, Y)
H0
W0
W2
W3
W1
H2
H3
RH1
R
R
RL0
L2
L3
RL1
R
WIPER
CONTROL
REGISTERS
NONVOLATILE
DATA
REGISTERS
SPI BUS
INTERFACE
CONTROL
LOGIC
SCK
SI
R
R
R
R
CS
SO
A0
A1
WP
HOLD
相關PDF資料 |
PDF描述 |
|---|---|
| CAT5251YI-50TE13 | Quad Digitally Programmable Potentiometer (DPP) with 256 Taps and SPI Interface |
| CAT5251YI-00TE13 | Quad Digitally Programmable Potentiometer (DPP) with 256 Taps and SPI Interface |
| CAT5251JI-00TE13 | Quad Digitally Programmable Potentiometer (DPP) with 256 Taps and SPI Interface |
| CAT5251UI-00TE13 | Quad Digitally Programmable Potentiometer (DPP) with 256 Taps and SPI Interface |
| CAT5251WI-00TE13 | Quad Digitally Programmable Potentiometer (DPP) with 256 Taps and SPI Interface |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT5251YI00 | 功能描述:數字電位計 IC DPP,NV,Quad 256 taps SPI RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5251YI-00 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT5251YI-00-T2 | 功能描述:數字電位計 IC DPP NV QUAD 256 TAP SPI RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5251YI50 | 功能描述:數字電位計 IC DPP,NV,Quad 256 taps SPI RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5251YI-50 | 制造商:ON Semiconductor 功能描述:IC DIGITAL POT 50KOHM 256 QUAD 24-TSSOP |
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