參數(shù)資料
型號(hào)： MCP4011T-503E/SN
廠商： Microchip Technology
文件頁(yè)數(shù)： 18/54頁(yè)
文件大小： 0K
描述： IC DGTL POT 50K 1CH 8SOIC
標(biāo)準(zhǔn)包裝： 3,300
接片： 64
電阻（歐姆）： 50k
電路數(shù)： 1
溫度系數(shù)： 標(biāo)準(zhǔn)值 150 ppm/°C
存儲(chǔ)器類型： 易失
接口： 2 線串行（芯片選擇，增/減）
電源電壓： 1.8 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOICN
包裝： 帶卷 (TR)
2006 Microchip Technology Inc.
DS21978C-page 25
MCP4011/2/3/4
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
3.1
Positive Power Supply Input (VDD)
The VDD pin is the device’s positive power supply input.
The input power supply is relative to VSS and can range
from 1.8V to 5.5V. A decoupling capacitor on VDD (to
VSS) is recommended to achieve maximum
performance.
3.2
Ground (VSS)
The VSS pin is the device ground reference.
3.3
Potentiometer Terminal A
The terminal A pin is connected to the internal potenti-
ometer’s terminal A (available on some devices). The
potentiometer’s terminal A is the fixed connection to the
0x3F terminal of the digital potentiometer.
The terminal A pin is available on the MCP4011,
MCP4012 and MCP4013 devices. The terminal A pin
does not have a polarity relative to the terminal W or B
pins. The terminal A pin can support both positive and
negative current. The voltage on terminal A must be
between VSS and VDD.
The terminal A pin is not available on the MCP4014.
The potentiometer’s terminal A is internally floating.
3.4
Potentiometer Wiper (W) Terminal
The terminal W pin is connected to the internal potenti-
ometer’s terminal W (the wiper). The wiper terminal is
the adjustable terminal of the digital potentiometer. The
terminal W pin does not have a polarity relative to
terminals A or B pins. The terminal W pin can support
both positive and negative current. The voltage on
terminal W must be between VSS and VDD.
3.5
Potentiometer Terminal B
The terminal B pin is connected to the internal potenti-
ometer’s terminal B (available on some devices). The
potentiometer’s terminal B is the fixed connection to the
0x00 terminal of the digital potentiometer.
The terminal B pin is available on the MCP4011 device.
The terminal B pin does not have a polarity relative to
the terminal W or A pins. The terminal B pin can
support both positive and negative current. The voltage
on terminal B must be between VSS and VDD.
The terminal B pin is not available on the MCP4012,
MCP4013 and MCP4014 devices.
For the MCP4013 and MCP4014, the internal potenti-
ometer’s terminal B is internally connected to VSS.
Terminal B does not have a polarity relative to
terminals W or A. Terminal B can support both positive
and negative current.
For the MCP4012, terminal B is internally floating.
Pin Number
Symbol
Pin
Type
Buffer
Type
Function
MCP4011
(SOIC-8)
MCP4012
MCP4013
(SOT-23-6)
MCP4014
(SOT-23-5)
11
1
VDD
P
—
Positive Power Supply Input
22
2
VSS
P
—
Ground
3
6
—
A
I/O
A
Potentiometer Terminal A
4
5
W
I/O
A
Potentiometer Wiper Terminal
54
4
CS
I
TTL
Chip Select Input
6
—
B
I/O
A
Potentiometer Terminal B
7
—
NC
—
No Connection
83
3
U/D
I
TTL
Increment/Decrement Input
Legend: TTL = TTL compatible input
A = Analog input
I = Input
O = Output
P = Power
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