參數(shù)資料
型號(hào)： MCP4461-103E/ST
廠商： Microchip Technology
文件頁(yè)數(shù)： 39/100頁(yè)
文件大?。?/td> 0K
描述： IC DGTL POT 257TAPS 10K 20TSSOP
標(biāo)準(zhǔn)包裝： 74
接片： 257
電阻（歐姆）： 10k
電路數(shù)： 4
溫度系數(shù)： 標(biāo)準(zhǔn)值 150 ppm/°C
存儲(chǔ)器類(lèi)型： 非易失
接口： I²C（設(shè)備位址）
電源電壓： 2.7 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 20-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 20-TSSOP
包裝： 管件
2010 Microchip Technology Inc.
DS22265A-page 43
MCP444X/446X
4.2.1
NONVOLATILE MEMORY
(EEPROM)
This memory can be grouped into two uses of
nonvolatile memory. These are:
The nonvolatile wipers start functioning below the
devices VPOR/VBOR trip point.
4.2.1.1
General Purpose Registers
These locations allow the user to store up to 5 (9-bit)
locations worth of information.
4.2.1.2
Nonvolatile Wiper Registers
These locations contain the wiper values that are
loaded into the corresponding volatile wiper register
whenever the device has a POR/BOR event. There are
four registers, one for each resistor network.
The nonvolatile wiper register enables stand-alone
operation of the device (without Microcontroller control)
after being programmed to the desired value.
4.2.1.3
Factory Initialization of Nonvolatile
Memory (EEPROM)
The Nonvolatile Wiper values will be initialized to
mid-scale value. This is shown in Table 4-2.
The General purpose EEPROM memory will be
programmed to a default value of 0x000.
It is good practice in the manufacturing flow to
configure the device to your desired settings.
TABLE 4-2:
DEFAULT FACTORY
SETTINGS SELECTION
4.2.1.4
Special Features
There are 5 nonvolatile bits that are not directly
mapped into the address space. These bits control the
following functions:
EEPROM Write Protect
WiperLock Technology for Nonvolatile Wiper 0
WiperLock Technology for Nonvolatile Wiper 1
WiperLock Technology for Nonvolatile Wiper 2
WiperLock Technology for Nonvolatile Wiper 3
The operation of WiperLock Technology is discussed in
. The state of the WL0, WL1, WL2, WL3,
and WP bits is reflected in the STATUS register (see
EEPROM Write Protect
All internal EEPROM memory can be Write Protected.
When EEPROM memory is Write Protected, Write
commands to the internal EEPROM are prevented.
Write Protect (WP) can be enabled/disabled by two
methods. These are:
External WP Hardware pin (MCP44X1 devices
only)
Nonvolatile configuration bit (WP)
High Voltage commands are required to enable and
disable the nonvolatile WP bit. These commands are
.
To write to EEPROM, both the external WP pin and the
internal WP EEPROM bit must be disabled. Write
Protect does not block commands to the volatile
registers.
4.2.2
VOLATILE MEMORY (RAM)
There are seven Volatile Memory locations. These are:
Volatile Wiper 0
Volatile Wiper 1
Volatile Wiper 2
Volatile Wiper 3
Status Register
Terminal Control (TCON0) Register 0
Terminal Control (TCON)1 Register 1
The volatile memory starts functioning at the RAM
retention voltage (VRAM).
R
e
s
ist
ance
Cod
e
Ty
p
ic
a
l
R
AB
V
a
lu
e
Defa
ult
POR
W
iper
Se
tting
Wiper
Code
W
ipe
rL
ock
TM
T
ech
nolo
g
y
a
nd
W
rite
Pr
o
tect
Settin
g
8-bit 7-bit
-502
5.0 k
Ω
Mid scale 80h
40h
Disabled
-103
10.0 k
Ω Mid scale 80h
40h
Disabled
-503
50.0 k
Ω Mid scale 80h
40h
Disabled
-104
100.0 k
Ω Mid scale 80h
40h
Disabled
相關(guān)PDF資料
PDF描述
VI-BNY-MW-F4 CONVERTER MOD DC/DC 3.3V 66W
VI-BNR-IU-F4 CONVERTER MOD DC/DC 7.5V 200W
MCP4461-104E/ML IC DGTL POT 257TAPS 100K 20QFN
VI-BNY-MW-F2 CONVERTER MOD DC/DC 3.3V 66W
VI-BNR-MY-F4 CONVERTER MOD DC/DC 7.5V 50W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP4461-104E/ML 功能描述:數(shù)字電位計(jì) IC 100k I2C Quad Ch 8bt Nonvolatile Memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MCP4461-104E/ML 制造商:Microchip Technology Inc 功能描述:; End To End Resistance:100kohm; Track T 制造商:Microchip Technology Inc 功能描述:IC, DIG POT, 100kohm, 257STEPS, QUAD, QFN-20
MCP4461-104E/ST 功能描述:數(shù)字電位計(jì) IC 100k I2C Quad Ch 8bt Nonvolatile Memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MCP4461-104E/ST 制造商:Microchip Technology Inc 功能描述:; End To End Resistance:100kohm; Track T 制造商:Microchip Technology Inc 功能描述:IC, DIG POT, 100kohm, 257STEPS, QUAD, TSSOP-20
MCP4461-502E/ML 功能描述:數(shù)字電位計(jì) IC 5k I2C Quad Ch 8bit Nonvolatile Memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*