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参数资料
| 型号： | MAX3157CAI |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/13页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485/422 250KBPS 28SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 46 |
| 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： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
MAX3157
High CMRR RS-485 Transceiver
with ±50V Isolation
4
_______________________________________________________________________________________
SWITCHING CHARACTERISTICS (continued)
(VCC = +5V ±5%, YR = ZR = AR = BR = ISOCOM, C1 = C2 = 0.047F, C3 = C4 = 1F. Typical values are at VCC = +5V and TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Driver Enable to Output High
tDZH
Figures 4 and 6, CL = 100pF, S2 closed
3500
ns
Driver Enable to Output Low
tDZL
Figures 4 and 6, CL = 100pF, S1 closed
3500
ns
Driver Disable Time from Low
tDLZ
Figures 4 and 6, CL = 15pF, S1 closed
300
ns
Driver Disable Time from High
tDHZ
Figures 4 and 6, CL = 15pF, S2 closed
300
ns
Receiver Input to Output
tRPLH,
tRPHL
Figures 7 and 9;
| VID | ≥ 2.0V
440
600
ns
Differential Receiver Skew
|tRPLH - tRPHL|
tRSKEW
Figures 7 and 9;
| VID | ≥ 2.0V
20
ns
Receiver Enable to Output Low
tRZL
Figures 2 and 8, CL = 100pF, S1 closed
20
50
ns
Receiver Enable to Output High
tRZH
Figures 2 and 8, CL = 100pF, S2 closed
20
50
ns
Receiver Disable Time from Low
tRLZ
Figures 2 and 8, CL = 100pF, S1 closed
200
500
ns
Receiver Disable Time from High
tRHZ
Figures 2 and 8, CL = 100pF, S2 closed
200
500
ns
Time to Shutdown
tSHDN
(Note 4)
50
200
700
ns
Driver Enable from Shutdown to
Output High
tDZH
(SHDN)
Figures 4 and 6, CL = 15pF, S2 closed
0.2
1
ms
Driver Enable from Shutdown to
Output Low
tDZL
(SHDN)
Figures 4 and 6, CL = 15pF, S1 closed
0.2
1
ms
Receiver Enable from Shutdown
to Output High
tRZH
(SHDN)
Figures 2 and 8, CL = 100pF, S2 closed
0.2
1
ms
Receiver Enable from Shutdown
to Output Low
tRZL
(SHDN)
Figures 2 and 8, CL = 100pF, S1 closed
0.2
1
ms
Charge-Pump Oscillating
Frequency
fOSC
1.3
MHz
Note 1: All currents into the device are positive; all currents out of the device are negative. All voltages are referred to device
ground unless otherwise noted.
Note 2:
VOD and VOC are the changes in VOD and VOC, respectively, when the DI input changes state.
Note 3: Current level applies to peak current just prior to foldback-current limiting.
Note 4: The device is put into shutdown by bringing RE high and DE low. If the enable inputs are in this state for less than 50ns,
the device is guaranteed not to enter shutdown. If the enable inputs are in this state for at least 700ns, the device is guaran-
teed to have entered shutdown.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3157CAI+ | 功能描述:RS-422/RS-485 接口 IC High CMRR RS-485 Tcvr w/+-50V Iso 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 |
| MAX3157CAI+T | 功能描述:RS-422/RS-485 接口 IC High CMRR RS-485 Tcvr w/+-50V Iso 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 |
| MAX3157CAI-T | 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX3157CPI | 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX3157CPI+ | 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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