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| 型号： | MAX14824GTG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/28页 |
| 文件大小： | 0K |
| 描述： | IC IO-LINK MASTER TXRX 24TQFN |
| 标准包装： | 2,500 |
| 系列： | * |
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24
MAX14824
IO-Link Master Transceiver
Address Selection
The device includes four chip-select address inputs,
A0–A3, allowing up to 16 devices on a single bus. Drive
the address inputs high or low to program the device
address as shown in Table 7. Do not leave any address
input unconnected.
Applications Information
UART Interfacing
The logic level of the MAX14824 microcontroller’s UART
interface I/Os (TXC, TXQ, TXEN, and RX) is defined by VL.
The device can be interfaced to microcontrollers whose
on-board UART TX output cannot be programmed as a
logic output (GPO). In this case, connect the TX output
of the UART to the TXC input for IO-Link communication
and connect a separate GPO output on the microcon-
troller to TXQ for standard IO (SIO) mode operation
(Figure 10). As the TXQ and TXC inputs are internally
logically ANDed, the unused input (TXC or TXQ) must be
held high while the other is in operation.
Transient Protection
Inductive load switching, surges, ESD and short circuits
create high transient voltages. C/Q and DI must be pro-
tected against high overvoltage and undervoltage tran-
sients. Positive voltage transients on DI must be limited to
+55V relative to GND and negative voltage transients must
be limited to -55V (relative to GND) on DI. Two Schottky
diodes having low forward voltage, like the DLFS240, must
be connected to C/Q to clamp under- and overvoltage
transients. Figure 11 shows suitable protection to meet
IEC 61000-4-2 ESD testing. For reduction of bit errors
induced by burst transients, enable the receiver filters
and add capacitors to C/Q and DI. If surge tests need to
be met, a TVS diode is recommended on VCC.
Figure 10. UART Interface
Figure 11. MAX14824 Operating Circuit with TVS Protection
Table 7. Address Input Selection
A3
A2
A1
A0
DEVICE ADDRESS
Low
0x00
Low
High
0x01
Low
High
Low
0x02
Low
High
0x03
Low
High
Low
0x04
Low
High
Low
High
0x05
Low
High
Low
0x06
Low
High
0x07
High
Low
0x08
High
Low
High
0x09
High
Low
High
Low
0x0A
High
Low
High
0x0B
High
Low
0x0C
High
Low
High
0x0D
High
Low
0x0E
High
0x0F
MICROCONTROLLER
TXQ
GPO
TXC
TX
TXEN
RTS
RX
MAX14824
1nF
270pF
VCC
C/Q
DFLS240
SDC36C
1F
270pF
GND
DI
DFLS240
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相关代理商/技术参数 |
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| MAX14825ETG+ | 功能描述:输入/输出控制器接口集成电路 Master IO-Link Schneider RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
| MAX14825ETG+T | 功能描述:输入/输出控制器接口集成电路 NULL RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
| MAX1482C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
| MAX1482CPD | 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1482CPD+ | 功能描述:RS-422/RS-485 接口 IC Slew-Rate-Limited RS-485 Transceivers RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
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