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See Technical Specifications

SN75C3223PW

2/2 Transceiver Full RS232 20-TSSOP

Manufacturer:

Texas Instruments
Mfr.Part #:

SN75C3223PW
Datasheet:

SN75C3223PW Datasheet (PDF)
Mounting Style:

SMD/SMT
Series:

SN75C3223
Function:

Transceiver
Data Rate:

1 Mb/s
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SN75C3223PW General 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.

Key Features

Operate With 3-V to 5.5-V V_CC 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

Specifications

Product Category	RS-232 Interface IC	Mounting Style	SMD/SMT
Series	SN75C3223	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	Height	1 mm
Length	6.5 mm	Operating Supply Voltage	3.3 V, 5 V
Product	RS-232 Transceivers	Product Type	RS-232 Interface IC
Shutdown	With Shutdown	Factory Pack Quantity	70
Subcategory	Interface ICs	Supply Type	Single Supply
Width	4.4 mm	Unit Weight	0.002716 oz