SN75185 多路 RS-232 驱动器和接收器
The SN75185 combines three drivers and five receivers from the TI SN75188 and SN75189 bipolar quadruple drivers and receivers, respectively. The pinout matches the flow-through design of the SN75C185 to decrease the part count, reduce the board space required, and allow easy interconnection of the UART and serial-port connector of IBMTM PC/ATTM and compatibles. The bipolar circuits and processing of the SN75185 provide a rugged low-cost solution for this function at the expense of quiescent power and external passive components relative to the SN75C185.
The SN75185 complies with the requirements of the TIA/EIA-232-F and ITU v.28 standards. These standards are for data interchange between a host computer and peripheral at signaling rates up to 20 kbit/s. The switching speeds of the SN75185 are fast enough to support rates up to 120 kbit/s with lower capacitive loads (shorter cables). Interoperability at the higher signaling rates cannot be assured unless the designer has design control of the cable and the interface circuits at both ends. For interoperability at signaling rates to 120 kbit/s, use of TIA/EIA-423-B (ITU v.10) and TIA/EIA-422-B (ITU v.11) standards is recommended.
The SN75185 is characterized for operation over the temperature range of 0°C to 70°C
| SN75185 | |
| Data Rate(kbps) | 120 |
| Drivers Per Package | 3 |
| Receivers Per Package | 5 |
| ESD HBM(kV) | +/-10 |
| Supply Voltage(s)(V) | +/-9.0 & 5.0 |
| ICC(Max)(mA) | +25/-25 & 30 |
| Operating Temperature Range(°C) | 0 to 70 |
| Pin/Package | 20PDIP, 20SOIC |
| Approx. Price (US$) | 0.45 | 1ku |
| Rating | Catalog |
| Footprint | SN75185 |
SN75185 特性
- Single Chip With Easy Interface Between UART and Serial-Port Connector of IBMTM PC/ATTM and Compatibles
- Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards
- Supports Data Rates up to 120 kbit/s
- ESD Protection Meets or Exceeds 10 kV on RS-232 Pins and 3.5 kV on All Other Pins (Human-Body Model)
- Pin-to-Pin Compatible With the SN75C185
SN75185 芯片订购指南
| 器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| SN75185DW | ACTIVE | 0 to 70 | 0.50 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN75185DWE4 | ACTIVE | 0 to 70 | 0.50 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN75185DWG4 | ACTIVE | 0 to 70 | 0.50 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN75185DWR | ACTIVE | 0 to 70 | 0.45 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN75185DWRE4 | ACTIVE | 0 to 70 | 0.45 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN75185DWRG4 | ACTIVE | 0 to 70 | 0.45 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN75185P | ACTIVE | 0 to 70 | 0.45 | 1ku | PDIP (N) | 20 | 20 | TUBE | |
| SN75185PE4 | ACTIVE | 0 to 70 | 0.45 | 1ku | PDIP (N) | 20 | 20 | TUBE |
SN75185 质量与无铅数据
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| SN75185DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN75185DW | SN75185DW |
| SN75185DWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN75185DWE4 | SN75185DWE4 |
| SN75185DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN75185DWG4 | SN75185DWG4 |
| SN75185DWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN75185DWR | SN75185DWR |
| SN75185DWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN75185DWRE4 | SN75185DWRE4 |
| SN75185DWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN75185DWRG4 | SN75185DWRG4 |
| SN75185P | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN75185P | SN75185P |
| SN75185PE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN75185PE4 | SN75185PE4 |
SN75185 应用技术支持与电子电路设计开发资源下载
- SN75185 数据资料 dataSheet 下载.PDF
- TI 德州仪器RS-232 产品选型与价格 . xls
- Analog Signal Chain Guide (8.62 MB)
- Industrial Interface IC Solutions (101 KB)