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參數(shù)資料
| 型號： | MAX491CPD |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 10/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485/RS422 LOWPWR 14DIP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 25 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 14-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 14-PDIP |
| 包裝： | 管件 |
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) .............................................................12V
Control Input Voltage (RE, DE)...................-0.5V to (VCC + 0.5V)
Driver Input Voltage (DI).............................-0.5V to (VCC + 0.5V)
Driver Output Voltage (A, B)...................................-8V to +12.5V
Receiver Input Voltage (A, B).................................-8V to +12.5V
Receiver Output Voltage (RO)....................-0.5V to (VCC + 0.5V)
Continuous Power Dissipation (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ....727mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) ..800mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW
8-Pin MAX (derate 4.1mW/°C above +70°C) ..............830mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C).........640mW
14-Pin CERDIP (derate 9.09mW/°C above +70°C).......727mW
Operating Temperature Ranges
MAX4_ _C_ _/MAX1487C_ A ...............................0°C to +70°C
MAX4_ _E_ _/MAX1487E_ A .............................-40°C to +85°C
MAX4_ _MJ_/MAX1487MJA ...........................-55°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
DC ELECTRICAL CHARACTERISTICS
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
VIN = -7V
VIN = 12V
VIN = -7V
VIN = 12V
Input Current
(A, B)
IIN2
VTH
k
Ω
48
-7V
≤ VCM ≤ 12V, MAX487/MAX1487
RIN
Receiver Input Resistance
-7V
≤ VCM ≤ 12V, all devices except
MAX487/MAX1487
R = 27
Ω (RS-485), Figure 4
0.4V
≤ VO ≤ 2.4V
R = 50
Ω (RS-422)
IO = 4mA, VID = -200mV
IO = -4mA, VID = 200mV
VCM = 0V
-7V
≤ VCM ≤ 12V
DE, DI, RE
MAX487/MAX1487,
DE = 0V, VCC = 0V or 5.25V
DE, DI, RE
R = 27
Ω or 50Ω, Figure 4
R = 27
Ω or 50Ω, Figure 4
R = 27
Ω or 50Ω, Figure 4
DE = 0V;
VCC = 0V or 5.25V,
all devices except
MAX487/MAX1487
CONDITIONS
k
Ω
12
A
±1
IOZR
Three-State (high impedance)
Output Current at Receiver
V
0.4
VOL
Receiver Output Low Voltage
3.5
VOH
Receiver Output High Voltage
mV
70
ΔVTH
Receiver Input Hysteresis
V
-0.2
0.2
Receiver Differential Threshold
Voltage
-0.2
mA
0.25
mA
-0.8
1.0
1.5
5
VOD2
Differential Driver Output
(with load)
V
2
V
5
VOD1
Differential Driver Output (no load)
A
±2
IIN1
Input Current
V
0.8
VIL
Input Low Voltage
V
2.0
VIH
Input High Voltage
V
0.2
ΔVOD
Change in Magnitude of Driver
Common-Mode Output Voltage
for Complementary Output States
V
0.2
ΔVOD
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
V
3
VOC
Driver Common-Mode Output
Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
MAX481/MAX483/MAX485/
MAX487–MAX491/MAX1487
2
Maxim Integrated
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX491CPD+ | 功能描述:RS-422/RS-485 接口 IC RS-485/RS-422 Transceiver 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 |
| MAX491CSD | 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 |
| MAX491CSD+ | 功能描述:RS-422/RS-485 接口 IC RS-485/RS-422 Transceiver 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 |
| MAX491CSD+T | 功能描述:RS-422/RS-485 接口 IC RS-485/RS-422 Transceiver 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 |
| MAX491CSD-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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