Texas Instruments 4Q 2006 RS-232, RS232 IEC6100-4-2 Level ESD-Protected Devices, Applications

RS232: IEC6100-4-2 (Level 4)

ESD-Protected Devices

TI offers new RS-232 devices with system- level IEC61000-4-2 electrostatic discharge (ESD) protection. This protection makes the RS-232 interface immune to damage from ESD strikes that may occur while the system is up and running, such as when a connection to the RS-232 cable is made. These devices are drop-in replacements and are functionally identical to the existing industry-standard solutions, providing a seamless transition in the qualification process. These devices meet the requirements for low-power, high-speed applications such as portable/consumer, telecom and computing equipment.

TI offers these new devices in the NiPdAu Pb-Free finish, which eliminates tin whiskers that might compromise long-term system reli- ability. TI offers the space-saving QFN pack- age on select devices in addition to its already extensive RS-232 portfolio.

Key Features

•No external ESD device needed with these system-level ESD ratings:

–±15-kV human-body model (HBM)

–±8-kV IEC61000-4-2, contact discharge

–±15-kV IEC61000-4-2, air-gap discharge

•Improved drop-in replacement of popular RS-232 devices

•Data rates meet or exceed today’s high-speed-application requirements

•Flexible power-saving options enable longer battery life

•Wide portfolio permits selection of the right form, fit and functionality

•Industry-leading interface product space with assured source of supply

•NiPdAu Pb-Free solution provides whisker-free, reliable package options

•Space-saving QFN package options for portable applications

RS-232 13

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Applications

•The three-driver, five-receiver MAX3243E is most popular in applications like PCs, notebooks and servers.

•The MAX3238E/37E offer complementary five-driver, three- receiver solutions. These two devices are popular in PC peripheral applications like data cables, printers, modems, industrial control, etc.

•The MAX3227E/23E/22E/21E are popular in portable handheld applications due to their reduced bit count, package size and low power consumption.

•Higher-speed versions like the SNx5C3232E/23E/22E/21E meet today’s higher throughput needs through the serial interface.

•The MAX232E and MAX213 provide a higher noise margin for more rugged environments such as industrial control.

TS5V330
TS3V330	SDRAM Flash
Analog MUX

TVP5146		Video	EMIF	Video DAC
or 5150A		In	Video	THS8200
			Out
				THS8135		AMP
		TMS320DM64x™
	ADSL				forTHS8135 only
		EMAC	McASP	Audio DAC		Volume
	Cable	JTAG	PCI	TLV320DAC26		Control
Modem			PCI			Head-
			Bus	TS5A23157		phone
			Host CPU	Analog		Speaker
				MUX
USB	1394	IR	RS-232	Modem	802.11	1284	DVI

Personal video recorder application block diagram.

Texas Instruments 4Q 2006 Interface Selection Guide