参数资料
型号: ISL23428UFRUZ-T7A
厂商: Intersil
文件页数: 8/21页
文件大小: 0K
描述: IC DGTL POT 2CH 50K 16UTQFN
标准包装: 1
系列: XDCP™
接片: 128
电阻(欧姆): 50k
电路数: 2
温度系数: 标准值 65 ppm/°C
存储器类型: 易失
接口: 4 线 SPI(芯片选择)
电源电压: 1.2 V ~ 5.5 V,1.7 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-UFQFN
供应商设备封装: 16-UTQFN(2.6x1.8)
包装: 标准包装
其它名称: ISL23428UFRUZ-T7ADKR
ISL23428
16
FN7904.1
July 19, 2012
Write Operation
A write operation to the ISL23428 is a two or more bytes
operation. First, It requires the CS transition from HIGH-to-LOW.
Then the host sends a valid Instruction Byte, followed by one or
more Data Bytes to the SDI pin. The host terminates the write
operation by pulling the CS pin from LOW-to-HIGH. Instruction is
executed on the rising edge of CS (see Figure 27).
Read Operation
A Read operation to the ISL23428 is a four byte operation. First,
It requires the CS transition from HIGH-to-LOW. Then the host
sends a valid Instruction Byte, followed by a “dummy” Data Byte,
NOP Instruction Byte and another “dummy” Data Byte to SDI pin.
The SPI host receives the Instruction Byte (instruction code +
register address) and requested Data Byte from SDO pin on the
rising edge of SCK during third and fourth bytes, respectively. The
host terminates the read by pulling the CS pin from LOW-to-HIGH
(see Figure 28).
FIGURE 27. TWO BYTE WRITE SEQUENCE
CS
SCK
SDI
SDO
WR INSTRUCTION
DATA BYTE
1
3
4
5
7
8
9
1011
1213141516
26
ADDR
FIGURE 28. FOUR BYTE READ SEQUENCE
CS
SCK
SDI
SDO
RD
ADDR
NOP
RD
ADDR
READ DATA
1
8
16
24
32
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