SN75C3221E 3V 至 5.5V 单通道 RS-232 1Mbit/s 线路驱动器/接收器

The SN65C3221E and SN75C3221E consist of one line driver, one line receiver, and a dual charge-pump circuit with ±15-kV IEC ESD protection pin to pin (serial-port connection pins, including GND). These devices provide the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. These devices operate at data signaling rates up to 1 Mbit/s and a driver output slew rate of 24 V/µs to 150 V/µs.

Flexible control options for power management are available when the serial port is inactive. The auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the devices do not sense a valid RS-232 signal on the receiver input, the driver output is disabled. If FORCEOFF is set low and EN is high, both the driver and receiver are shut off, and the supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur. Auto-powerdown can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver input. The INVALID output notifies the user if an RS-232 signal is present at the receiver input. INVALID is high (valid data) if the receiver input voltage is greater than 2.7 V or less than –2.7 V, or has been between –0.3 V and 0.3 V for less than 30 µs. INVALID is low (invalid data) if the receiver input voltage is between –0.3 V and 0.3 V for more than 30 µs. See for receiver input levels

SN75C3221E
Data Rate(kbps) 1000  
Drivers Per Package 1  
Receivers Per Package 1  
ESD HBM(kV) +/-15  
Supply Voltage(s)(V) 3.3 or 5.0  
ICC(Max)(mA) 1  
Operating Temperature Range(°C) 0 to 70  
Pin/Package 16SSOP, 16TSSOP  
Approx. Price (US$) 0.75 | 1ku  
Rating Catalog  
Footprint MAX3221
SN75C3221E 特性
SN75C3221E 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
SN75C3221EPW ACTIVE 0 to 70 1.55 | 1ku TSSOP (PW) | 16 90 | TUBE MY221E
SN75C3221EPWE4 ACTIVE 0 to 70 1.55 | 1ku TSSOP (PW) | 16 90 | TUBE MY221E
SN75C3221EPWG4 ACTIVE 0 to 70 1.55 | 1ku TSSOP (PW) | 16 90 | TUBE MY221E
SN75C3221EPWR ACTIVE 0 to 70 1.30 | 1ku TSSOP (PW) | 16 2000 | LARGE T&R MY221E
SN75C3221EPWRE4 ACTIVE 0 to 70 1.30 | 1ku TSSOP (PW) | 16 2000 | LARGE T&R MY221E
SN75C3221EPWRG4 ACTIVE 0 to 70 1.30 | 1ku TSSOP (PW) | 16 2000 | LARGE T&R MY221E
SN75C3221E 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
SN75C3221EPW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN75C3221EPW SN75C3221EPW
SN75C3221EPWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN75C3221EPWE4 SN75C3221EPWE4
SN75C3221EPWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN75C3221EPWG4 SN75C3221EPWG4
SN75C3221EPWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN75C3221EPWR SN75C3221EPWR
SN75C3221EPWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN75C3221EPWRE4 SN75C3221EPWRE4
SN75C3221EPWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN75C3221EPWRG4 SN75C3221EPWRG4
SN75C3221E 应用技术支持与电子电路设计开发资源下载
  1. SN75C3221E 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器RS-232 产品选型与价格 . xls
  3. Analog Signal Chain Guide (8.62 MB)
  4. Industrial Interface IC Solutions (101 KB)