The SN65C3223E and SN75C3223E consist 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). These devices meet the requirements of TIA/EIA-232-F and 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. The devices operate at typical data signaling rates up to 1000 kbit/s.

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, 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 mA. 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 devices are 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 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.

• ESD Protection for RS-232 Bus Pins
  • ±15-kV Human-Body Model (HBM)
  • ±8-kV IEC 61000-4-2, Contact Discharge
  • ±15-kV IEC 61000-4-2, Air-Gap Discharge
• Meet or Exceed the Requirements of TIA/EIA-232-F and ITU v.28 Standards
• Operate With 3-V to 5.5-V VCC Supply
• Operate up to 1000 kbit/s
• Two Drivers and Two Receivers
• Low Standby Current . . . 1 μA Typ
• External Capacitors . . . 4 × 0.1 μF
• Accepts 5-V Logic Input With 3.3-V Supply
• APPLICATIONS
  • Battery-Powered Systems
  • PDAs
  • Notebooks
  • Laptops
  • Palmtop PCs
  • Hand-Held Equipment

• Drivers per package
• 2
• Receivers per package
• 2
• Logic voltage (Min) (V)
• 3.3
• Data rate (Max) (kbps)
• 1000
• Main supply voltage (Nom) (V)
• 3.3, 5
• Features
• Auto-Powerdown
• ESD HBM (kV)
• 15
• Rating
• Catalog
• Operating temperature range (C)
• 0 to 70
• Vout (Typ) (V)
• 5.4

SN75C3223E的完整型号有：SN75C3223EDB、SN75C3223EDBR、SN75C3223EDWR、SN75C3223EPW、SN75C3223EPWR，以下是这些产品的关键参数及官网采购报价：

SN75C3223EDB，工作温度：0 to 70，封装：SSOP (DB)-20，包装数量MPQ：70个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN75C3223EDB的批量USD价格：1.329（1000+）

SN75C3223EDBR，工作温度：0 to 70，封装：SSOP (DB)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN75C3223EDBR的批量USD价格：1.139（1000+）

SN75C3223EDWR，工作温度：0 to 70，封装：SOIC (DW)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN75C3223EDWR的批量USD价格：1.139（1000+）

SN75C3223EPW，工作温度：0 to 70，封装：TSSOP (PW)-20，包装数量MPQ：70个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN75C3223EPW的批量USD价格：1.139（1000+）

SN75C3223EPWR，工作温度：0 to 70，封装：TSSOP (PW)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN75C3223EPWR的批量USD价格：.949（1000+）

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