參數(shù)資料
型號(hào)： MAX3161
廠商： Maxim Integrated Products, Inc.
元件分類： RS-232
英文描述： 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
中文描述： 5V的高速RS - 232收發(fā)器與0.1uF電容
文件頁(yè)數(shù)： 19/23頁(yè)
文件大小： 358K
代理商： MAX3161
M
+3.0V to+5.5V, 1μA, RS-232/RS-485/422
Multiprotocol Transceivers
______________________________________________________________________________________
19
RS-485/422 Line Length vs. Data Length
The RS-485/422 standard covers line lengths up to
4000 feet. For line lengths greater than 4000 feet, use
the repeater application shown in Figure 14.
RS-232/RS-485 Protocol Translator
Figure 15 shows the MAX3162 configured as an RS-
232/RS-485 protocol translator. The direction of transla-
tion is controlled through the RTS signal (R1IN). The
single-ended RS-232 receiver input signal is translated
to a differential RS-485 transmitter output. Similarly, a
differential RS-485 receiver input signal is translated to
a single-ended RS-232 transmitter output. RS-232 data
received on R2IN is transmitted as an RS-485 signal on
Z and Y. RS-485 signals received on A and B are trans-
mitted as an RS-232 signal on T
1OUT
.
M
ultiprotocol Bus
The
Typical Operating Circuit
shows a standard appli-
cation for the MAX3160. The MAX3160
’
s output pins
are multiplexed between RS-232 and RS-485 protocols
by a microprocessor (μP). The μP also directs the shut-
down functions, enable lines, and the duplex of the
MAX3160. Data is transmitted to the MAX3100 UART
through an SPI
port. The UART asynchronously
transfers data through the MAX3160 to the pin-selected
RS-232 or RS-485 protocol; see Table 14 for commonly
used cable connections.
SPI is a trademark of Motorola, Inc.
MAX 3160-2 FIG10
T1OUT
2V/div
SHDN
5V/division
T2OUT
2V/div
GND
40
μ
s/div
Figure 10. MAX3160 RS-232 Transmitter Outputs when Exiting
Shutdown
MAX 3160-2 FIG12
T
OUT
5V/div
R
OUT
T
IN
1
μ
s/div
Figure 12. RS-232 Loopback Test Result at 250kbps, FAST =
Low
MAX 3160-2 FIG13
T
IN
T
OUT
5V/div
R
OUT
200ns/div
Figure 13. RS-232 Loopback Test Result at 1000kbps, FAST =
High
MAX3160
MAX3161
MAX3162
5k
R_ IN
R_ OUT
C2-
C2+
C1-
C1+
V-
V+
V
CC
C4
C3
C1
C2
V
CC
C
BYPASS
SHDN
T_ OUT
T_ IN
GND
V
CC
1000pF
Figure 11. Loopback Test Circuit
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3161CAG 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube
MAX3161CAG+ 功能描述:RS-422/RS-485 接口 IC 3-5.5V 1uA Tcvr Multiprotocol RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube
MAX3161CAG+T 功能描述:RS-422/RS-485 接口 IC 3-5.5V 1uA Tcvr Multiprotocol RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube
MAX3161CAG-T 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube
MAX3161EAG 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube
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