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参数资料
| 型号： | MAX5389NAUD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/13页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 256POS 100K 14TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 接片： | 256 |
| 电阻（欧姆）： | 100k |
| 电路数： | 2 |
| 温度系数： | 标准值 35 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | 6 线串行（芯片选择，递增，增/减） |
| 电源电压： | 2.6 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°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： | 带卷 (TR) |
8 ______________________________________________________________________________________
MAX5389
Dual, 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometer
Pin Description
Pin Configuration
INCB
GND
VDD
1
+
2
14
13
CSB
INCA
UDA
UDB
CSA
TOP VIEW
3
4
12
11
HB
LB
LA
5
10 WB
WA
HA 6
7
9
8
MAX5389
PIN
NAME
FUNCTION
1
CSA
Active-Low Register A Chip-Select Input. Drive CSA low to change wiper position WA through INCA and UDA.
2
UDA
Register A Up/Down Control Input. With UDA low, a high-to-low transition at INCA decrements the WA posi-
tion towards LA. With UDA high, a high-to-low transition at INCA increments WA position toward HA.
3
UDB
Register B Up/Down Control Input. With UDB low, a high-to-low transition at INCB decrements the WB posi-
tion towards LB. With UDB high, a high-to-low transition at INCB increments WB position toward HB.
4
VDD
Power-Supply Input. Bypass VDD to GND with a 0.1FF capacitor close to the device.
5
WA
Resistor A Wiper Terminal
6
HA
Resistor A High Terminal. The voltage at HA can be higher or lower than the voltage at LA. Current can flow
into or out of HA.
7
LA
Resistor A Low Terminal. The voltage at LA can be higher or lower than the voltage at HA. Current can flow
into or out of LA.
8
LB
Resistor B Low Terminal. The voltage at LB can be higher or lower than the voltage at HB. Current can flow
into or out of LB.
9
HB
Resistor B High Terminal. The voltage at HB can be higher or lower than the voltage at LB. Current can flow
into or out of HB.
10
WB
Resistor B Wiper Terminal
11
GND
Ground
12
INCB
Register B Wiper Increment Control Input. With UDB low, a high-to-low transition at INCB decrements the
WB position towards LB. With UDB high, a high-to-low transition at INCB increments WB position toward HB.
13
INCA
Register A Wiper Increment Control Input. With UDA low, a high-to-low transition at INCA decrements the
WA position towards LA. With UDA high, a high-to-low transition at INCA increments WA position toward HA.
14
CSB
Active-Low Register B Chip-Select Input. Drive CSB low to change wiper position WA through INCB and UDB.
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