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参数资料
| 型号： | DS1846E-010+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/18页 |
| 文件大小： | 0K |
| 描述： | IC NV TRI-POT MEM MON 20TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 接片： | 100，256 |
| 电阻（欧姆）： | 10k，100k |
| 电路数： | 3 |
| 温度系数： | 标准值 750 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | 3 线串行（设备位址） |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
DS1846
3 of 18
PIN DESCRIPTIONS
VCC—Power-Supply Terminal. The DS1846 will support supply voltages ranging from +4.5V to +5.5V.
GND—Ground Terminal
SDA—2-Wire Serial Data Interface. The serial data pin is for serial data transfer to and from the
DS1846. The pin is open drain and can be wire-ORed with other open-drain or open-collector interfaces.
SCL—2-Wire Serial Clock Interface. The serial clock input is used to clock data into the DS1846 on
rising edges and clock data out on falling edges.
WP—Write Protect. WP must be connected to GND before either the data in memory or potentiometer
wiper settings may be changed. WP is pulled high internally and must be either left open or connected to
VCC if write protection is desired.
A0—Address Input. This input pin specifies the address of the device when used in a multidropped
configuration. As many as two DS1846s may be addressed on a single 2-wire bus.
H0, H1, H2—High-End Terminals of the Potentiometers. For the three potentiometers, it is not
required that these terminals be connected to a potential greater than the low-end terminal of the
potentiometer. Voltage applied to the high end of the potentiometers cannot exceed the power-supply
voltage, VCC, or go below ground.
L0, L1, L2—Low-End Terminals of the Potentiometers. It is not required that these terminals be
connected to a potential less than the high-end terminals of the pot. Voltage applied to the low end of the
potentiometers cannot exceed the power-supply voltage, VCC, or go below ground.
W0, W1, W2—Wipers of the Potentiometers. These pins are the wiper terminals of the potentiometers.
Three bytes in EEPROM memory locations F8h, F9h, and FAh determine each wiper’s setting. Voltage
applied to either wiper terminal cannot exceed the power-supply voltage, VCC, or go below ground.
PBRST
—Pushbutton Reset. This input pin is active low. It acts as the pushbutton reset pin for the
MicroMonitor. Pushbutton reset is pulled high internally.
NMI
—Nonmaskable Interrupt. Active-low signal that is generated to provide for an early power-fail
warning.
IN—NMI Voltage Input. An input voltage below VTP on this input forces the NMI output low. This can
be used with a voltage-divider to set a secondary voltage monitoring level. (See Figure 4.)
RST
—Active-Low Reset Output. This signal provides an output that can be used to reset a
microprocessor.
RST—Active-High Reset Output. This signal provides an output that can be used to reset a
microprocessor.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1847 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Dual Temperature-Controlled NV Variable Resistor |
| DS1847-010 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Dual Temperature-Controlled NV Variable Resistor |
| DS1847-050 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Dual Temperature-Controlled NV Variable Resistor |
| DS1847B-010 | 功能描述:数字电位计 IC 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 |
| DS1847B-010/T&R | 制造商:Maxim Integrated Products 功能描述:DUAL NV TEMP CNTRL VAR RES 10/10K T - Tape and Reel |
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