參數(shù)資料
型號(hào): ISL22429WFU10Z-TK
廠(chǎng)商: Intersil
文件頁(yè)數(shù): 3/13頁(yè)
文件大?。?/td> 0K
描述: IC POT DGTL 128TP LN LP 10-MSOP
標(biāo)準(zhǔn)包裝: 1,000
系列: XDCP™
接片: 128
電阻(歐姆): 10k
電路數(shù): 2
溫度系數(shù): 標(biāo)準(zhǔn)值 ±50 ppm/°C
存儲(chǔ)器類(lèi)型: 非易失
接口: 4 線(xiàn) 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(lèi)型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 10-MSOP
包裝: 帶卷 (TR)
11
FN6332.2
May 28, 2009
FIGURE 12. THREE BYTE WRITE SEQUENCE
FIGURE 13. THREE BYTE READ SEQUENCE
Applications Information
Communicating with ISL22429
Communication with ISL22429 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.
0
1
0
1
0
I3
I2
I1
I0
R3
R2
R1 R0
SCK
SDI
0
D6
D5D4
D3
D2
D1D0
CS
00
0
101
00
I3
I2
I1
I0
R3
R2
R1 R0
SCK
SDI
CS
00
SDO
0
D6
D5D4
D3
D2
D1D0
Don’t Care
0
ISL22429
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