TRS3223 具有 +/-15kV ESD 保护的 3V 至 5.5V 多通道 RS-232 线路驱动器/接收器

The TRS3223 consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides 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. The device operates at data signaling rates up to 250 kbit/s and a maximum of 30-V/us driver output slew rate.

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 device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF is set low and EN is high, both drivers and receivers are shut off, and the supply current is reduced to 1 uA. Disconnecting the serial port or turning off the peripheral drivers causes auto-powerdown 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 any receiver input. The INVALID output is used to notify the user if an RS-232 signal is present at any receiver input. INVALID is high (valid data) if any 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 us. INVALID is low (invalid data) if the receiver input voltage is between -0.3 V and 0.3 V for more than 30 us

	TRS3223
Data Rate(kbps)	250
Drivers Per Package	2
Receivers Per Package	2
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	20SSOP
Approx. Price (US$)	1.15 | 1ku
Rating	Catalog
Footprint	MAX3223

TRS3223 特性

• RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)
• Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards
• Operates With 3-V to 5.5-V VCC Supply
• Operates up to 250 kbit/s
• Two Drivers and Two Receivers
• Low Standby Current . . . 1 uA Typical
• External Capacitors . . . 4 × 0.1 uF
• Accepts 5-V Logic Input With 3.3-V Supply
• Alternative High-Speed Pin-Compatible Device (1 Mbit/s)
  • TRSF3223
• APPLICATIONS
  • Battery-Powered Systems
  • PDAs
  • Notebooks
  • Laptops
  • Palmtop PCs
  • Hand-Held Equipment

TRS3223 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
TRS3223CDBR	ACTIVE	0 to 70	1.00 | 1ku	SSOP (DB) | 20	2000 | LARGE T&R
TRS3223CDBRG4	ACTIVE	0 to 70	1.00 | 1ku	SSOP (DB) | 20	2000 | LARGE T&R

TRS3223 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
TRS3223CDBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TRS3223CDBR	TRS3223CDBR
TRS3223CDBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TRS3223CDBRG4	TRS3223CDBRG4

TRS3223 应用技术支持与电子电路设计开发资源下载

1. TRS3223 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)