參數(shù)資料
型號(hào)： MAX3110ECWI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 微控制器/微處理器
英文描述： 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
中文描述： 1 CHANNEL(S), SERIAL COMM CONTROLLER, PDSO28
封裝： 0.300 INCH, MS-013AE, SOIC-28
文件頁(yè)數(shù)： 27/32頁(yè)
文件大?。?/td> 413K
代理商： MAX3110ECWI
M
SPI/MICROWIRE-Compatible UART and ±15kV ESD-
Protected RS-232 Transceivers with Internal Capacitors
______________________________________________________________________________________
27
In 9-bit mode, the MAX3110E/MAX3111E is set up with
eight bits plus parity. The parity bit in all normal mes-
sages is clear but is set in an address-type message.
The MAX3110E/MAX3111E’s parity-interrupt mask gen-
erates an interrupt on high parity when enabled. When
the master sends an address message with the parity
bit set, all MAX3110E/MAX3111E nodes issue an inter-
rupt. All nodes then retrieve the received byte to com-
pare to their assigned address. Once addressed, the
node continues to process each received byte. If the
node was not addressed, it ignores all message traffic
until a new address is sent out by the master.
The parity/9th-bit interrupt is controlled only by the data
in the receive register and is not affected by data in the
FIFO, so the most effective use of the parity/9th-bit
interrupt is with FIFO disabled. With the FIFO disabled,
received non-address words can be ignored and not
even read from the UART. For more detailed informa-
tion on 9-bit mode, refer to the MAX3100 data sheet.
SIR IrDA Mode
The MAX3110E/MAX3111E’s IrDA mode can be used
to communicate with other IrDA SIR-compatible
devices or to reduce power consumption in opto-isolat-
ed applications.
In IrDA mode, a bit period is shortened to 3/16 of a
baud period (1.61μs at 115,200 baud). A data zero is
transmitted as a pulse of light (TX pin = logic low, RX
pin = logic high), as shown in Figure 15.
In receive mode, the RX signal’s sampling is done
halfway into the transmission of a high level. The sam-
pling is done once (instead of three times, as in normal
mode). The MAX3110E/MAX3111E ignore pulses short-
er than approximately 1/16 of the baud period. The
IrDA device that is communicating with the MAX3110E/
MAX3111E must be set to transmit pulses at 3/16 of the
baud period. For compatibility with other IrDA devices,
set the format to 8-bit data, one stop, no parity. For
more detailed information on SIR IrDA mode, refer to
the MAX3100 data sheet.
Layout and Power-Supply
_____________________Considerations
The MAX3110E/MAX3111E require basic layout tech-
niques and fundamental power supply considerations.
The minimum requirements include: (1) placing a 1μF
ceramic bypass capacitor as close as possible to V
CC
,
preferably right next to the V
CC
lead or on the opposite
side of the PCB directly below the V
CC
lead; (2) using
an internal ground plane within the PCB, returning all
circuit grounds to this ground plane, or using a ‘star’
ground technique where all circuit grounds are
returned to a common ground point at the ‘GND’ lead
of the IC; 3) ensuring that the power source to the IC
has a low inductive path and is high-frequency
bypassed to absorb ESD events with significant
changes in the supply voltage.
S
S
S
S
NORMAL
RX
UART FRAME
DATA BITS
0
1
1
1
1
1
0
0
0
0
NORMAL UART
TX
1
1
1
1
1
0
0
0
0
IrDA
RX
IrDA
TX
Figure 15. IrDA Timing
相關(guān)PDF資料
PDF描述
MAX3110 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
MAX3111 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
MAX3110EENI 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
MAX3111EENI 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
MAX3110E-MAX3111E 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3110ECWI+ 制造商:Maxim Integrated Products 功能描述:LINE TRNSCVR 2TR 2TX 2RX 28SOIC W - Bulk
MAX3110ECWI+G36 功能描述:UART 接口集成電路 5V SPI/uWire Compatible RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX3110ECWI+T 功能描述:UART 接口集成電路 RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX3110ECWI+TG36 功能描述:UART 接口集成電路 5V SPI/uWire Compatible RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX3110ECWI-T 功能描述:UART 接口集成電路 RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
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