參數資料
型號: ISL22446WFV20Z
廠商: Intersil
文件頁數: 5/15頁
文件大?。?/td> 0K
描述: IC POT DGTL 128TP LN LP 20-TSSOP
產品培訓模塊: Solutions for Industrial Control Applications
標準包裝: 740
系列: XDCP™
接片: 128
電阻(歐姆): 10k
電路數: 4
溫度系數: 標準值 ±50 ppm/°C
存儲器類型: 非易失
接口: 4 線 SPI(芯片選擇)
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 20-TSSOP
包裝: 管件
13
FN6181.2
September 9, 2009
Applications Information
Communicating with ISL22446
Communication with ISL22446 proceeds using SPI interface
through the ACR (address 1000b), IVRi (addresses 0000b,
0001b, 0010b and 0011b) and WRi (addresses 0000b,
0001b, 0010b and 0011b) registers.
The wiper of the potentiometer is controlled by the WRi
register. Writes and reads can be made directly to these
registers to control and monitor the wiper position without
any non-volatile memory changes. This is done by setting
MSB bit at address 1000b to 1.
The non-volatile IVRi stores the power up value of the wiper.
IVRs are accessible when MSB bit at address 1000b is set
to 0. Writing a new value to the IVRi register will set a new
power up position for the wiper. Also, writing to this register
will load the same value into the corresponding WRi as the
IVRi. Reading from the IVRi will not change the WRi, if its
contents are different.
Examples
A. Writing to the IVR
This sequence will write a new value (77h) to the IVR2
(non-volatile):
Set the ACR (Addr 1000b) for NV write (40h)
Send the ID byte, Instruction Byte, then the Data byte
Set the IVR0 (Addr 0000b) to 77h
Send the ID byte, Instruction Byte, then the Data byte
B. Reading from the WR
This sequence will read the value from the WR3 (volatile):
Write to ACR first to access the WRs
Send the ID byte, Instruction Byte, then the Data byte
Read the data from WR3 (Addr 0011b)
Send the ID byte, Instruction Byte, then Read the Data byte
01 010 000 110 010 000 100 000 0
(Sent to SDI)
01 010 000 110 000 100 111 011 1
(Sent to SDI)
01 010 000 110 010 001 100 000 0
(Sent to SDI)
0 1 0 1 0 0 0 0 1 0 1 1 0 0 1 1 x xxx xxxx
(Out on SDO)
ISL22446
相關PDF資料
PDF描述
VI-B6V-MY-F4 CONVERTER MOD DC/DC 5.8V 50W
ISL22346WFV20Z IC POT DGTL 128TP LN LP 20-TSSOP
DS1013M-12+ IC DELAY LINE 12NS 8-DIP
X9511WSZT7A IC DGTL POT 32POS PB SGL 8SOIC
X9C303S8ZT1 IC XDCP 100-TAP 32K EE 8-SOIC
相關代理商/技術參數
參數描述
ISL22446WFV20Z-TK 功能描述:數字電位計 IC 128 TAP FL RNG IND QD DCP 20LD 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
ISL22449 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Quad Digitally Controlled Potentiometer
ISL22449UFV14Z 功能描述:IC POT DGTL 128TP LN LP 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:XDCP™ 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 接片:32 電阻(歐姆):50k 電路數:1 溫度系數:標準值 50 ppm/°C 存儲器類型:易失 接口:3 線串行(芯片選擇,遞增,增/減) 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細型,TSOT-23-6 供應商設備封裝:TSOT-23-6 包裝:帶卷 (TR)
ISL22449UFV14Z-TK 功能描述:IC POT DGTL 128TP LN LP 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:XDCP™ 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 接片:32 電阻(歐姆):50k 電路數:1 溫度系數:標準值 50 ppm/°C 存儲器類型:易失 接口:3 線串行(芯片選擇,遞增,增/減) 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細型,TSOT-23-6 供應商設備封裝:TSOT-23-6 包裝:帶卷 (TR)
ISL22449WFV14Z 功能描述:IC POT DGTL 128TP LN LP 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:XDCP™ 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 接片:32 電阻(歐姆):50k 電路數:1 溫度系數:標準值 50 ppm/°C 存儲器類型:易失 接口:3 線串行(芯片選擇,遞增,增/減) 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細型,TSOT-23-6 供應商設備封裝:TSOT-23-6 包裝:帶卷 (TR)