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参数资料
型号： MAX491ESD+
厂商： Maxim Integrated Products
文件页数： 11/17页
文件大小： 0K
描述： IC TXRX RS485/RS422 14-SOIC
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 50
类型： 收发器
驱动器/接收器数： 1/1
规程： RS422，RS485
电源电压： 4.75 V ~ 5.25 V
安装类型： 表面贴装
封装/外壳： 14-SOIC（0.154"，3.90mm 宽）
供应商设备封装： 14-SOIC
包装： 管件
产品目录页面： 1402 (CN2011-ZH PDF)
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
SWITCHING CHARACTERISTICS—MAX481/MAX485, MAX490/MAX491, MAX1487
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
mA
795
0V
≤ VO ≤ VCC
IOSR
Receiver Short-Circuit Current
mA
35
250
-7V
≤ VO ≤12V (Note 4)
IOSD2
Driver Short-Circuit Current,
VO = Low
mA
35
250
-7V
≤ VO ≤12V (Note 4)
IOSD1
Driver Short-Circuit Current,
VO = High
MAX1487,
RE = 0V or VCC
250
400
350
650
ns
10
30
60
tPHL
Driver Rise or Fall Time
Figures 6 and 8, RDIFF = 54
Ω, CL1 = CL2 = 100pF
ns
MAX490M, MAX491M
MAX490C/E, MAX491C/E
20
90
150
MAX481, MAX485, MAX1487
MAX490M, MAX491M
MAX490C/E, MAX491C/E
MAX481, MAX485, MAX1487
Figures 6 and 8, RDIFF = 54
Ω,
CL1 = CL2 = 100pF
MAX481 (Note 5)
Figures 5 and 11, CRL = 15pF, S2 closed
Figures 5 and 11, CRL = 15pF, S1 closed
Figures 5 and 11, CRL = 15pF, S2 closed
Figures 5 and 11, CRL = 15pF, S1 closed
Figures 6 and 10, RDIFF = 54
Ω,
CL1 = CL2 = 100pF
Figures 6 and 8,
RDIFF = 54
Ω,
CL1 = CL2 = 100pF
Figures 6 and 10,
RDIFF = 54
Ω,
CL1 = CL2 = 100pF
CONDITIONS
ns
510
tSKEW
ns
50
200
600
tSHDN
Time to Shutdown
Mbps
2.5
fMAX
Maximum Data Rate
ns
20
50
tHZ
Receiver Disable Time from High
ns
10
30
60
tPLH
20
50
tLZ
Receiver Disable Time from Low
ns
20
50
tZH
Driver Input to Output
Receiver Enable to Output High
ns
20
50
tZL
Receiver Enable to Output Low
20
90
200
ns
13
40
70
tHZ
tSKD
Driver Disable Time from High
| tPLH - tPHL | Differential
Receiver Skew
ns
40
70
tLZ
Driver Disable Time from Low
ns
40
70
tZL
Driver Enable to Output Low
315
40
ns
515
25
ns
315
40
tR, tF
20
90
200
Driver Output Skew to Output
tPLH, tPHL
Receiver Input to Output
40
70
tZH
Driver Enable to Output High
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
230
400
300
500
MAX481/MAX485,
RE = 0V or VCC
500
900
MAX490/MAX491,
DE, DI, RE = 0V or VCC
300
500
MAX488/MAX489,
DE, DI, RE = 0V or VCC
120
250
DE = VCC
300
500
DE = 0V
DE = VCC
DE = 0V
A
MAX481/483/487, DE = 0V, RE = VCC
0.1
10
ISHDN
Supply Current in Shutdown
120
250
ICC
No-Load Supply Current
(Note 3)
DE = 5V
DE = 0V
MAX483
MAX487
MAX483/MAX487,
RE = 0V or VCC
Figures 7 and 9, CL = 100pF, S2 closed
Figures 7 and 9, CL = 100pF, S1 closed
Figures 7 and 9, CL = 15pF, S1 closed
Figures 7 and 9, CL = 15pF, S2 closed
A
MAX481/MAX483/MAX485
MAX487–MAX491/MAX1487
Maxim Integrated
3
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相关代理商/技术参数
参数描述
MAX491ESD+ 功能描述:RS-422/RS-485 接口 IC RS-485/RS-422 Transceiver RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube
MAX491ESD+ 制造商:Maxim Integrated Products 功能描述:SEMICONDUCTOR ((NW))
MAX491ESD+T 功能描述:RS-422/RS-485 接口 IC RS-485/RS-422 Transceiver RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube
MAX491ESD-T 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube
MAX491MJD 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube
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