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Parameters

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 open-in-new Find other RS-232 transceivers

Package | Pins | Size

SOIC (DW) 20 132 mm² 12.8 x 10.3 SSOP (DB) 20 38 mm² 5.3 x 7.2 TSSOP (PW) 20 42 mm² 6.5 x 6.4 open-in-new Find other RS-232 transceivers

Features

  • Operate With 3-V to 5.5-V VCC Supply
  • Operate Up to 1 Mbit/s
  • Low Standby Current ...1 µA Typical
  • External Capacitors ...4 × 0.1 µF
  • Accept 5-V Logic Input With 3.3-V Supply
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)
  • Applications
    • Battery-Powered Systems, PDAs, Notebooks, Laptops, Palmtop PCs, and Hand-Held Equipment

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Description

The SN65C3223 and SN75C3223 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). The 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. The 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 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 µA. 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 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. Refer to Figure 4 for receiver input levels.

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Exact equivalent in functionality and parametrics to the compared device:
SN75C3223E ACTIVE 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15-kV ESD (HBM) Protection TI recommends SN75C3223E in new designs. The SN75C3223E is an improved direct drop-in replacement for the SN75C3223
TRSF3223E ACTIVE 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver The commercial temp device has the SAME FUNCTIONALITY/PINOUT as the compared device but includes enhanced IEC61000-4-2 ESD Protection.

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet 3-V to 5-V Multichannel RS-232 Compatible Line Driver/Receiver datasheet (Rev. B) Oct. 19, 2004
* Errata Datasheet Errata for SN65/75C3223 SN65/75C3232 SN65/75C3243 TRSF3223/3232/3243 Nov. 13, 2008

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Package Pins Download
SOIC (DW) 20 View options
SSOP (DB) 20 View options
TSSOP (PW) 20 View options

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