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See Technical Specifications

SN75C3223EPWR

3- to 5.5-V dual channel 1Mbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection

Manufacturer:

Texas Instruments
Mfr.Part #:

SN75C3223EPWR
Datasheet:

SN75C3223EPWR Datasheet (PDF)
Mounting Style:

SMD/SMT
Series:

SN75C3223E
Function:

Transceiver
Data Rate:

1 Mb/s
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SN75C3223EPWR General Description

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.

Key Features

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 V_CC 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

Specifications

Product Category	RS-232 Interface IC	Mounting Style	SMD/SMT
Series	SN75C3223E	Function	Transceiver
Data Rate	1 Mb/s	Number of Drivers	2 Driver
Number of Receivers	2 Receiver	Duplex	Full Duplex
Supply Voltage - Max	5.5 V	Supply Voltage - Min	3 V
Operating Supply Current	1 mA	Minimum Operating Temperature	0 C
Maximum Operating Temperature	+ 70 C	ESD Protection	15 kV
Operating Supply Voltage	3.3 V, 5 V	Output Current	35 mA
Product	RS-232 Transceivers	Product Type	RS-232 Interface IC
Propagation Delay Time	150 ns	Protocol Supported	RS-232
Shutdown	With Shutdown	Factory Pack Quantity	2000
Subcategory	Interface ICs	Unit Weight	0.002716 oz