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参数资料
| 型号： | DS3902U-515+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/11页 |
| 文件大小： | 0K |
| 描述： | IC RESIST VAR DUAL 8-USOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 接片： | 256 |
| 电阻（欧姆）： | 15k，50k |
| 电路数： | 2 |
| 温度系数： | 标准值 ±300 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： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 管件 |
DS3902
Dual, NV, Variable Resistors
with User EEPROM
6
_____________________________________________________________________
Detailed Description
The block diagram of the DS3902 is shown in the Block
Diagram section. Detailed descriptions of major com-
ponents follow.
Memory Map
A memory map of the DS3902 is shown in Table 1.
Resistors
The DS3902 contains two, 256-position (plus High-Z),
NV, variable digital resistors. Pins H0 and H1 are the
high terminals of Resistor 0 and Resistor 1, respective-
ly. The low terminals of both resistors are tied to ground
internally. The resistors are programmed using the I2C
serial interface (see the Resistor 0 and Resistor 1 regis-
Pin Description
PIN
NAME
FUNCTION
1
H0
Resistor 0 High Terminal
2
SDA
I2C Serial-Data Open-Drain
Input/Output
3
SCL
I2C Serial-Clock Input
4
GND
Ground
5
ADD_SEL
Address Select
6
H1
Resistor 1 High Terminal
7
N.C.
No Connection
8VCC
Power-Supply Voltage
Block Diagram
DS3902
SDA
SLAVE ADDRESS
00h
RESISTOR 0
02h
RESISTOR 1
MSBYTE
LSBYTE
03h
04-05h PASSWORD ENTRY (RAM)
06-07h PASSWORD SETTING
10-1Fh USER MEMORY (16 BYTES)
DEVICE MEMORY
(EEPROM)
MSB
LSB
01h
R1 R0
HI-Z
RESISTOR 0
256 POSITION
30k OR 15k
H0
HIGH-Z
8
7
XX XX
XX
SCL
GND
VCC
I2C
INTERFACE
ADD_SEL
RESISTOR 1
256 POSITION
50k
H1
HI-Z
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3902U-515+ | 功能描述:数字电位计 IC Dual NV Variable w/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 |
| DS3902U-515+T&R | 制造商:Maxim Integrated Products 功能描述:VARIABLE RESS W/ USER EEPROM 8USOP - Tape and Reel |
| DS3902U-530 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual, NV, Variable Resistors with User EEPROM |
| DS3902U-530/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS3902U-530+ | 功能描述:数字电位计 IC Dual NV Variable w/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 |
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