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| 型号： | MAX3490ECSA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/17页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485/422 10MBPS 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS422，RS485 |
| 电源电压： | 3 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
3.3V-Powered, 10Mbps and Slew-Rate-Limited
True RS-485/RS-422 Transceivers
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(VCC = 3.3V ±0.3V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C)
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.
Supply Voltage (VCC)...............................................................7V
Control Input Voltage (RE, DE) ...................................-0.3V to 7V
Driver Input Voltage (DI).............................................-0.3V to 7V
Driver Output Voltage (A, B, Y, Z)..........................-7.5V to 12.5V
Receiver Input Voltage (A, B) ................................-7.5V to 12.5V
Receiver Output Voltage (RO)....................-0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW
8-Pin SO (derate 5.88mW/°C above +70°C)..................471mW
14-Pin Plastic DIP (derate 10mW/°C above +70°C) ......800mW
14-Pin SO (derate 8.33mW/°C above +70°C)................667mW
Operating Temperature Ranges
MAX34_ _C_ _.......................................................0°C to +70°C
MAX34_ _E_ _....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
DE = 0V,
VCC = 0V or 3.6V
DE = 0V, RE = VCC,
VCC = 0V or 3.6V, MAX3491
DE = 0V, RE = 0V,
VCC = 0V or 3.6V, MAX3491
k
12
RIN
Receiver Input Resistance
A
±1
IOZR
Three-State (High Impedance)
Output Current at Receiver
V
0.4
VOL
Receiver Output Low Voltage
V
VCC - 0.4
VOH
Receiver Output High Voltage
mV
50
VTH
Receiver Input Hysteresis
V
-0.2
0.2
VTH
Receiver Differential
Threshold Voltage
A
-1
IO
Output Leakage (Y, Z)
in Shutdown Mode
1
A
-20
IO
Output Leakage (Y, Z)
V
0.2
VOD
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
(Note 1)
V
1.5
VOD
2.0
Differential Driver Output
20
mA
-0.8
IIN2
Input Current (A, B)
1.0
A
±2
IIN1
Logic Input Current
V
3
VOC
Driver Common-Mode Output
Voltage
V
0.2
VOC
Change in Magnitude of
Common-Mode Output Voltage
(Note 1)
V
2.0
VIH
Input High Voltage
V
0.8
VIL
Input Low Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
RL = 54 or 100, Figure 4
-7V ≤ VCM ≤ 12V
RL = 54 (RS-485), Figure 4
VCC = 3.6V, 0V ≤ VOUT ≤ VCC
RL = 100 (RS-422), Figure 4
IOUT = 2.5mA, VID = 200mV, Figure 6
IOUT = -1.5mA, VID = 200mV, Figure 6
VCM = 0V
VOUT = 12V
VIN = -7V
-7V ≤ VCM ≤ 12V
VOUT = -7V
VIN = 12V
DE, DI, RE
RL = 54 or 100, Figure 4
DE, DI, RE
VOUT = 12V
DE, DI, RE
VOUT = -7V
CONDITIONS
RL = 60 (RS-485), VCC = 3.3V, Figure 5
1.5
MAX3483/MAX3485/MAX3486/
MAX3488/MAX3490/MAX3491
2
Maxim Integrated
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