- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9317 > MCP4461T-503E/ST (Microchip Technology)IC DGTL POT 257TAPS 50K 20TSSOP PDF資料下載
參數(shù)資料
| 型號(hào)： | MCP4461T-503E/ST |
| 廠商： | Microchip Technology |
| 文件頁(yè)數(shù)： | 77/100頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DGTL POT 257TAPS 50K 20TSSOP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 接片： | 257 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 4 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 150 ppm/°C |
| 存儲(chǔ)器類型： | 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： | 帶卷 (TR) |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)當(dāng)前第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)
MCP444X/446X
DS22265A-page 78
2010 Microchip Technology Inc.
8.6
Design Considerations
In the design of a system with the MCP44XX devices,
the following considerations should be taken into
account:
8.6.1
POWER SUPPLY
CONSIDERATIONS
The typical application will require a bypass capacitor
in order to filter high-frequency noise, which can be
induced onto the power supply's traces. The bypass
capacitor helps to minimize the effect of these noise
sources on signal integrity. Figure 8-8 illustrates an
appropriate bypass strategy.
In this example, the recommended bypass capacitor
value is 0.1 F. This capacitor should be placed as
close (within 4 mm) to the device power pin (VDD) as
possible.
The power source supplying these devices should be
as clean as possible. If the application circuit has
separate digital and analog power supplies, VDD and
VSS should reside on the analog plane.
FIGURE 8-8:
Typical Microcontroller
Connections.
8.6.2
LAYOUT CONSIDERATIONS
Several layout considerations may be applicable to
your application. These may include:
8.6.2.1
Noise
Inductively-coupled AC transients and digital switching
noise can degrade the input and output signal integrity,
potentially masking the MCP44XX’s performance.
Careful board layout minimizes these effects and
increases the Signal-to-Noise Ratio (SNR). Multi-layer
boards utilizing a low-inductance ground plane,
isolated inputs, isolated outputs and proper decoupling
are critical to achieving the performance that the silicon
is
capable
of
providing.
Particularly
harsh
environments may require shielding of critical signals.
If low noise is desired, breadboards and wire-wrapped
boards are not recommended.
8.6.2.2
Footprint Compatibility
The specification of the MCP44XX pinouts was done to
allow systems to be designed to easily support the use
of either the dual (MCP46XX) or quad (MCP44XX)
device.
Figure 8-9 shows how the dual pinout devices fit on the
quad device footprint. For the Rheostat devices, the
dual device is in the MSOP package, so the footprints
would need to be offset from each other.
FIGURE 8-9:
Quad Pinout (TSSOP
Package) vs. Dual Pinout.
VDD
VSS
MCP
4
X/
446
X
0.1 F
PIC
TM
M
ic
ro
c
ont
ro
ller
0.1 F
SCL
HVC/A0
W
B
A
SDA
A1
1
2
3
4
17
18
19
20
RESET
A1
WP
VDD
MCP44X1
Quad Potentiometers
TSSOP
5
6
7
14
15
16
P0W
P0B
P0A
P1A
P1W
P1B
VSS
HVC/A0
SDA
SCL
MCP44X2
Quad Rheostat
1
2
3
4
11
12
13
14
P0B
A1
P0W
VDD
TSSOP
5
6
7
8
9
10
P2W
P1W
P2B
P3B
P3W
P1B
VSS
HVC/A0
SDA
SCL
8
9
10
P3B
P3W
P3A
12
P2W
P2A
P2B
11
MCP42X1 Pinout (1)
MCP42X2 Pinout
Note 1:
Pin 15 (RESET) is the Address A2 (A2)
pin on the MCP46x1 device.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MS27656E25B29PB | CONN RCPT 29POS WALL MNT W/PINS |
| MCP4461T-502E/ST | IC DGTL POT 257TAPS 5K 20TSSOP |
| VE-240-MY-F1 | CONVERTER MOD DC/DC 5V 50W |
| VI-BNT-IU-F1 | CONVERTER MOD DC/DC 6.5V 200W |
| MCP4461-103E/ST | IC DGTL POT 257TAPS 10K 20TSSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP4462-103E/ST | 功能描述:數(shù)字電位計(jì) IC 10k 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 |
| MCP4462-103E/ST | 制造商:Microchip Technology Inc 功能描述:; End To End Resistance:10kohm; Track Ta 制造商:Microchip Technology Inc 功能描述:IC, DIG POT, 10kohm, 257STEPS, QUAD, TSSOP-14 |
| MCP4462-104E/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 |
| MCP4462-104E/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-14 |
| MCP4462-502E/ST | 制造商:Microchip Technology 功能描述:Digital Potentiometer 256POS 5KOhm Quad 14-Pin TSSOP Tube 制造商:Microchip Technology Inc 功能描述:5K, I2C, QUAD CHANNEL, 8-BIT, NONVOLATILE MEMORY - Rail/Tube 制造商:Microchip Technology Inc 功能描述:IC DGTL POT 257POS 5K 14TSSOP 制造商:Microchip Technology Inc 功能描述:50k,I2C,quadchan 8b non vol mem |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。