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參數(shù)資料
| 型號： | MAX13450EAUD+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 5/17頁 |
| 文件大小： | 0K |
| 描述： | TXRX RS-485 14TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 96 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS485 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-TSSOP （0.173"，4.40mm 寬）裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 14-TSSOP-EP |
| 包裝： | 管件 |
RS-485 Transceivers with Integrated
100/120 Termination Resistors
MAX13450E/MAX13451E
______________________________________________________________________________________ 13
Detailed Description
The MAX13450E is a full-duplex, RS-485/RS-422-
compatible transceiver and the MAX13451E is a half-
duplex, RS-485/RS-422-compatible transceiver. Both
devices have an internal 100I/120I termination resistor.
The MAX13450E/MAX13451E have a VL supply voltage
input to support down to a +1.8V voltage logic interface.
The MAX13450E/MAX13451E feature a 1/8-unit load
receiver input impedance, allowing up to 256 transceiv-
ers on the bus. All line interface pins are protected to
Q
30kV ESD based on the HBM. These devices also
include fail-safe circuitry, guaranteeing a defined logic-
level receiver output when the receiver inputs are open
or shorted.
The MAX13450E/MAX13451E allow slew-rate-limited
driver outputs for lower data rates below 500kbps. The
SRL reduces the slew rate, which reduces EMI emissions
and reflections caused by improperly terminated cables.
The MAX13451E has a FAULT output that indicates a
fault condition on the driver. The MAX13451E also has an
INV input that inverts the phase of A and B pins.
Termination Resistor
The MAX13450E/MAX13451E feature a selectable inter-
nal termination resistor. Drive the TERM input low to
enable the internal termination resistor. Drive the TERM
input high to disable the internal termination resistor.
Drive the TERM100 input high to select the 100I termi-
nation resistor. Drive TERM100 input low to select the
120I termination resistor.
INV Input (MAX13451E)
The INV input of the MAX13451E reverses the polarity
of the RO receiver output (see Table 5 and 6). If the INV
input is high then the RO output is low under fail-safe
receiver conditions. This is the opposite polarity of nor-
mal fail-safe operations.
Fault Condition (MAX13451E)
The MAX13451E also has a FAULT output to indicate a
fault condition. The FAULT output is active high when
there is a short circuit at the driver’s output, an over/
undervoltage at the driver’s outputs, or the device’s tem-
perature is higher than +150NC.
Table 6. INV Input Function Table for
Receiver (MAX13451E)
Function Tables
(continued)
Functional Diagram (MAX13450E)
MAX13450E
D
LOGIC-LEVEL
TRANSLATION
SRL
DI
DE
TERM
Z
Y
A
B
RE
RO
TERM100
GND
VL
VCC
INPUT
OUTPUT
RE
INV
A-B
RO
High
X
High-Z
Low
R
-50mV or
Short or Open
High
P
-200mV
Low
High
R
-50mV or
Open
Low
P
-200mV
High
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX13450EAUD+ | 功能描述:RS-485接口IC Half/Full-Dplx RS485 20Msps 5V LD/Rc RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX13450EAUD+T | 功能描述:RS-485接口IC Half/Full-Dplx RS485 20Msps 5V LD/Rc RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX13451EAUD+ | 功能描述:RS-485接口IC Full-Dplx RS485 20Msps 5V LD/Rc RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX13451EAUD+T | 功能描述:RS-485接口IC Full-Dplx RS485 20Msps 5V LD/Rc RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX1346BETX | 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
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