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參數(shù)資料
| 型號： | ISL22426UFV14Z-TK |
| 廠商： | Intersil |
| 文件頁數(shù)： | 5/15頁 |
| 文件大小： | 0K |
| 描述： | IC POT DGTL 128TP LN LP 14-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 系列： | XDCP™ |
| 接片： | 128 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 2 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 ±80 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： | 14-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 14-TSSOP |
| 包裝： | 帶卷 (TR) |
13
FN6180.2
September 8, 2009
Applications Information
Communicating with ISL22426
Communication with ISL22426 proceeds using SPI interface
through the ACR (address 1000b), IVRi (addresses 0000b,
0001b) and WRi (addresses 0000b, 0001b) 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 IVR0
(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 WR1 (volatile):
Write to ACR first to access the WRs
Send the ID byte, Instruction Byte, then the Data byte
Read the data from WR1 (Addr 0001b)
Send the ID byte, Instruction Byte, then Read the Data byte
01 010 000 110 010 000 100 000 0
(Sent to DI)
01 010 000 110 000 000 111 011 1
(Sent to DI)
01 010 000 110 010 001 100 000 0
(Sent to DI)
0 1 0 1 0 0 0 0 1 0 1 1 0 0 0 1 x xxx xxxx
(Out on DO)
ISL22426
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL22426WFR16Z | 功能描述:數(shù)字電位計 IC 128 TAP FL RNG IND DL DCP 16LD 4X4 RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| ISL22426WFR16Z-TK | 功能描述:數(shù)字電位計 IC 128 TAP FL RNG DCP 16LD 4X4 RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| ISL22426WFV14Z | 功能描述:數(shù)字電位計 IC 128 TAP FL RNG IND DCP 14LD RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| ISL22426WFV14Z-TK | 功能描述:數(shù)字電位計 IC 128 TAP FL RNG IND DCP 14LD RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| ISL22429 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Low Noise, Low Power, SPI Bus, 128 Taps, Wiper Only |
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