Specification	SN75C23243DGGR

Data Rate	250 KBd
Duplex	Full
Mounting Type	Surface Mount
Number of Drivers/Receivers [custom]	6
Number of Drivers/Receivers [custom]	10
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	48-TFSOP
Package / Case	0.24 in
Package / Case [custom]	6.1 mm
Protocol	RS232
Receiver Hysteresis	500 mV
Supplier Device Package	48-TSSOP
Type	Transceiver
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	3 V

SN75C23243 Series

3- to 5.5-V multichannel 250kbps RS-232 line driver/receiver with +/-15-kV ESD protection

Part	Protocol	Receiver Hysteresis	Number of Drivers/Receivers [custom]	Number of Drivers/Receivers [custom]	Supplier Device Package	Data Rate	Package / Case	Package / Case	Package / Case [custom]	Duplex	Mounting Type	Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]
Texas Instruments SN75C23243DGGR	RS232	500 mV	6	10	48-TSSOP	250 KBd	48-TFSOP	0.24 in	6.1 mm	Full	Surface Mount	Transceiver	70 °C	0 °C	5.5 V	3 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Texas Instruments	LARGE T&R	1	$ 3.97
		100	$ 3.23
		250	$ 2.54
		1000	$ 2.16

Description

General part information

SN75C23243 Series

The SN65C23243 and SN75C23243 consist of two ports, each containing three line drivers and five 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. This combination of drivers and receivers matches that needed for two typical serial ports used in an IBM PC/AT, or compatible. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, these devices include an always-active noninverting output (ROUT2\) per port, which allows applications using the ring indicator to transmit data while the devices are powered down. The devices operate at data signaling rates up to 250 kbit/s, and a maximum of 30-V/µs driver output slew-rate.

Flexible control options for power management are available when either or both serial ports are 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 of its respective port are disabled. If FORCEOFF\ is set low, both drivers and receivers (except ROUT2\) are shut off, and the supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur.

Auto-powerdown can be disabled when FORCEON and FORCEOFF\ are high, and should be done when driving a serial mouse. With auto-powerdown enabled, the RS-232 port is activated automatically when a valid signal is applied to any respective receiver input. The INV\ output is used to notify the user if an RS-232 signal is present at any receiver input. INV\ 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. INV\ is low (invalid data) if all receiver input voltages are between –0.3 V and 0.3 V for more than 30 µs. Refer to Figure 5 for receiver input levels.

Documents

Technical documentation and resources

SN65C23243, SN75C23243 datasheet (Rev. A)

Data sheet