參數(shù)資料
型號(hào)： MAX3160CAP
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 通用總線功能
英文描述： MemoryStick(TM) Interconnect Extender Chipset 20-TSSOP -40 to 85
中文描述： DUAL LINE TRANSCEIVER, PDSO20
封裝： 5.3 MM, MO-150, SSOP-20
文件頁(yè)數(shù)： 18/23頁(yè)
文件大?。?/td> 358K
代理商： MAX3160CAP
M
+3.0V to+5.5V, 1μA, RS-232/RS-485/422
Multiprotocol Transceivers
18
______________________________________________________________________________________
receiver input impedance (48k
), allowing up to 128
transceivers to be connected in parallel on one com-
munication line. The MAX3161/MAX3162 have a 1/8-
unit load receiver input impedance (96k
), allowing up
to 256 transceivers to be connected in parallel on one
communication line. Any combination of these devices
and/or other RS-485 transceivers with a total of 32-unit
loads or fewer can be connected to the line.
The MAX3160/MAX3161/MAX3162 RS-485 driver out-
puts are 1/8-unit load when disabled. This impedance
may be reduced if the D1 pin is toggled at a high fre-
quency. With no power applied (V
CC
= GND), the RS-
485 transmitter output impedances typically go to 1/2-
unit load on the MAX3161/MAX3162, and to one-unit
load on the MAX3160.
Driver Output Protection
Two mechanisms prevent excessive output current and
power dissipation caused by faults or by bus con-
tention. The first, a foldback current limit on the output
stage, provides immediate protection against short cir-
cuits over the whole common-mode voltage range (see
Typical Operating Characteristics
). The second, a ther-
mal shutdown circuit, forces the driver outputs into a
high-impedance state if the die temperature becomes
excessive.
Protection Against Wiring Faults
EIA/TIA-485 standards require a common input voltage
range of -7V to +12V to prevent damage to the device.
The MAX3160/MAX3161/MAX3162 inputs are protected
to RS-232 levels of ±25V for the receiver inputs and
±13.2V for the transmitter/driver outputs. This provides
additional protection for the RS-485 transceivers
against ground differential or faults due to miswiring.
RS-485/422 Reduced EMI and Reflections
The MAX3160/MAX3161/MAX3162 can be configured
for slew-rate limiting by pulling FAST low. This minimizes
EMI and reduces reflections caused by improperly ter-
minated cables. Operation in slew-rate limited mode
reduces the amplitudes of high-frequency harmonics.
SUPPLY
VOLTAGE (V)
C1 (
μ
F)
C2, C3, C4,
CBYPASS (
μ
F)
+3.0 to +3.6
+4.5 to +5.5
+3.0 to +5.5
0.1
0.047
0.1
0.1
0.33
0.47
Table 13. Required Minimum Capacitance
Values
INPUTS
HDPLX
X
0
0
0
1
1
1
X
OUTPUT
RO/R2OUT
High-Z up to V
CC
1
0
1
1
0
1
RS-232 mode
RS-485/RS-232
1
1
1
1
1
1
1
0
SHDN
0
1
1
1
1
1
1
X
A - B
X
≥
-50mV
≤
-200mV
Floating
X
X
X
X
Y(A) - Z(B)
X
X
X
X
≥
-50mV
≤
-200mV
Floating
X
Table 11. MAX3161
INPUTS
RE485
X
1
0
0
0
OUTPUT
RO
High-Z
High-Z
1
0
1
SHDN
0
X
1
1
1
A - B
X
X
≥
-50mV
≤
-200mV
Inputs open
Table 12. MAX3162
Truth Tables (continued)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3160CAP+ 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
MAX3160CAP+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
MAX3160CAP-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
MAX3160EAP 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
MAX3160EAP+ 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
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