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Fail-Safe, High-Speed (10Mbps),
Slew-Rate-Limited RS-485/RS-422 Transceivers
Pin Description
PIN
—
9
5
—
Noninverting Driver Output
Y
9
5
6
7
5
6
7
3
—
4
—
5
Driver Input. With DE high, a low on DI forces noninverting
output low and inverting output high. Similarly, a high on DI
forces noninverting output high and inverting output low.
DI
5
Slew-Rate-Limit Selector Pin. Connect SRL to GND for 10Mbps
communication rate; connect to VCC for 500kbps communication
rate. Leave unconnected for 115kbps communication rate.
SRL
—
Ground
GND
6, 7
8
—
TXP
—
4
—
3
Driver Output Enable. Drive DE high to enable driver outputs. These
outputs are high impedance when DE is low. Drive RE high and DE
low to enter low-power shutdown mode.
DE
4
2
3
HALF-
DUPLEX
MODE
1
MAX3089
2
3
FULL-
DUPLEX
MODE
1
2
—
FULL-DUPLEX
DEVICES
—
MAX3081
MAX3084
MAX3087
1
2
HALF-
DUPLEX
DEVICES
—
MAX3082
MAX3085
MAX3088
Receiver Output. When RE is low and if A - B
≥ -50mV, RO will be
high; if A - B
≤ -200mV, RO will be low.
RO
2
Receiver Output Enable. Drive RE low to enable RO; RO is high
impedance when RE is high. Drive RE high and DE low to enter
low-power shutdown mode.
RE
3
FUNCTION
NAME
Half/Full-Duplex Selector Pin. Connect H/F to VCC for half-duplex
mode; connect to GND or leave unconnected for full-duplex mode.
H/F
—
MAX3080
MAX3083
MAX3086
Transmitter Phase. Connect TXP to GND, or leave floating for normal
transmitter phase/polarity. Connect to VCC to invert the transmitter
phase/polarity.
—
9
Y
Noninverting Receiver Input and Noninverting Driver Output*
10
6
—
10
—
Z
Inverting Driver Output
—
10
Z
Inverting Receiver Input and Inverting Driver Output*
11
7
—
11
—
B
Inverting Receiver Input
—
11
B
Receiver Input Resistors*
—
7
—
B
Inverting Receiver Input and Inverting Driver Output
PIN
MAX3080–MAX3089
10
Maxim Integrated
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3085EEPA+ | 功能描述:RS-422/RS-485 接口 IC Fail-Safe 10Mbps RS-485/RS-422 Tcvr 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 |
| MAX3085EESA | 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 |
| MAX3085EESA+ | 功能描述:RS-422/RS-485 接口 IC Fail-Safe 10Mbps RS-485/RS-422 Tcvr 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 |
| MAX3085EESA+T | 功能描述:RS-422/RS-485 接口 IC Fail-Safe 10Mbps RS-485/RS-422 Tcvr 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 |
| MAX3085EESA-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 |
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