参数资料
| 型号： | DS3901E+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/20页 |
| 文件大小： | 0K |
| 描述： | IC RESIST VAR TRPL 14TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 96 |
| 接片： | 256 |
| 电阻（欧姆）： | 20k，30k，50k |
| 电路数： | 3 |
| 温度系数： | 标准值 50 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.4 V ~ 5.5 V |
| 工作温度： | -40°C ~ 95°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 管件 |
DS3901
Triple, 8-Bit NV Variable Resistor
with Dual Settings and User EEPROM
____________________________________________________________________
19
Reading a Single Byte from a Slave: Unlike the write
operation that uses the memory address byte to define
where the data is to be written, the read operation
occurs at the present value of the memory address
counter. To read a single byte from the slave, the mas-
ter generates a START condition, writes the slave
address byte with R/W = 1, reads the data byte with a
NACK to indicate the end of the transfer, and generates
a STOP condition.
Manipulating the Address Counter for Reads: A
dummy write cycle can be used to force the address
counter to a particular value. To do this, the master
generates a START condition, writes the slave address
byte (R/W = 0), writes the memory address where it
desires to read, generates a repeated START condition,
writes the slave address byte (R/W = 1), reads data
with ACK or NACK as applicable, and generates a
STOP condition.
Reading Multiple Bytes from a Slave: The read oper-
ation can be used to read multiple bytes with a single
transfer. When reading bytes from the slave, the master
simply ACKs the data byte if it desires to read another
byte before terminating the transaction. After the master
reads the last byte, it NACKs to indicate the end of the
transfer and generates a stop condition. This can be
done with or without modifying the address counter’s
location before the read cycle.
Applications Information
Power-Supply Decoupling
To achieve best results, it is recommended that the power
supply is decoupled with a 0.01F or a 0.1F capacitor.
Use high-quality, ceramic, surface-mount capacitors, and
mount the capacitors as close as possible to the VCC and
GND pins to minimize lead inductance.
SDA and SCL Pullup Resistors
SDA is an open-collector output on the DS3901 that
requires a pullup resistor to realize high logic levels. A
master using either an open-collector output with a
pullup resistor or a push-pull output driver can be uti-
lized for SCL. Pullup resistor values should be chosen
to ensure that the rise and fall times listed in the AC
Electrical Characteristics are within specification.
Chip Topology
TRANSISTOR COUNT: 52,353
SUBSTRATE CONNECTED TO GROUND
相关PDF资料 |
PDF描述 |
|---|---|
| DS3902U-530+T&R | IC DIGITAL RESISTER EEPROM 8USOP |
| DS3903E-020/T&R | IC POT NV TRIPLE 128POS 20-TSSOP |
| DS3905U-020 | IC POT NV TRIPLE 128POS 10-USOP |
| DS3906U+T&R | IC RESIST VAR TRPL 10USOP |
| DS3908N+T&R | IC POT DUAL DIGITAL 14-TDFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3901E+ | 功能描述:数字电位计 IC Tri 8Bit NV Variable w/Dual Stgs & EEPROM 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 |
| DS3901E+T&R | 制造商:Maxim Integrated Products 功能描述:TRIPLE VAR RES W/ DUAL SET LF T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RESIST VAR TRPL 14TSSOP |
| DS3901E+T&R | 功能描述:数字电位计 IC Tri 8Bit NV Variable w/Dual Stgs & EEPROM 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 |
| DS3902 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual, NV, Variable Resistors with User EEPROM |
| DS3902425 | 制造商:MAJOR 功能描述: |
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