参数资料
| 型号： | ISL23428UFRUZ-T7A |
| 厂商： | Intersil |
| 文件页数： | 7/21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
15
FN7904.1
July 19, 2012
When the device enters shutdown, all current DCP WR settings are
maintained. When the device exits shutdown, the wipers will
return to the previous WR settings after a short settling time
(see Figure 26).
SPI Serial Interface
The ISL23428 supports an SPI serial protocol, mode 0. The
device is accessed via the SDI input and SDO output with data
clocked in on the rising edge of SCK, and clocked out on the
falling edge of SCK. CS must be LOW during communication with
the ISL23428. The SCK and CS lines are controlled by the host or
master. The ISL23428 operates only as a slave device.
All communication over the SPI interface is conducted by
sending the MSB of each byte of data first.
Protocol Conventions
The SPI protocol contains Instruction Byte followed by one or more
Data Bytes. A valid Instruction Byte contains instruction as the three
MSBs, with the following five register address bits (see Table 3).
The next byte sent to the ISL23428 is the Data Byte.
Table 4 contains a valid instruction set for ISL23428.
If the [R4:R0] bits are zero or one, then the read or write is to the
WRi register. If the [R4:R0] are 10000, then the operation is to
the ACR.
FIGURE 26. SHUTDOWN MODE WIPER RESPONSE
POWER-UP
USER PROGRAMMED
MID SCALE = 40H
SHDN ACTIVATED
SHDN RELEASED
AFTER SHDN
W
IPE
R
VO
LT
A
G
E,
V
RW
(V
)
SHDN MODE
TIME (s)
WIPER RESTORE TO
THE ORIGINAL POSITION
0
TABLE 3. INSTRUCTION BYTE FORMAT
BIT #
7
654321
0
I2
I1
I0
R4
R3
R2
R1
R0
TABLE 4. INSTRUCTION SET
INSTRUCTION SET
OPERATION
I2
I1
I0
R4
R3
R2
R1
R0
0
XXX
XX
NOP
0
1
XXX
XX
ACR READ
0
1
XXX
XX
ACR WRTE
1
0
R4R3R2R1R0
WRi or ACR READ
1
0
R4R3R2R1R0
WRi or ACR WRTE
Where X means “do not care”.
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| ISL23428UFRUZ-TK | 功能描述:数字电位计 IC 128 TAP VOLATILE SPI DL FL RNG DCP 16LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL23428UFVZ | 功能描述:数字电位计 IC 128 TAP VOLATILE SPI DL FL RNG DCP 14LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL23428UFVZ-T7A | 功能描述:数字电位计 IC 128 TAPVOLATILE SPI DUAL RNG IND 14LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL23428UFVZ-TK | 功能描述:数字电位计 IC 128 TAP VOLATILE SPI DL FL RNG DCP 14LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL23428WFRUZ-T7A | 功能描述:数字电位计 IC 128 TAPVOLATILE SPI DUAL RNG IND 16LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
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