MAX3243E Status: ACTIVE

3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15kV IEC ESD Protection

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Datasheet

3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver (Rev. C) (PDF 738 KB)
16 Feb 2009

	MAX3243E
Data Rate(kbps)	500
Drivers Per Package	3
Receivers Per Package	5
ESD HBM(kV)	+/-15
Supply Voltage(s)(V)	3.3 or 5.0
ICC(Max)(mA)	1
Operating Temp Range(Celsius)	-40 to 85,0 to 70
Pin/Package	28SOIC, 28SSOP, 28TSSOP, 32QFN
Approx. Price (US$)	0.90 \| 1ku
Rating	Catalog
Footprint	MAX3243
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

MAX3243: 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15kV ESD (HBM) Protection
MAX3232E: 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15kV IEC ESD Protection
TRS3243E: 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15-kV IEC ESD Protection
TPS5430: 5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter
LMV321: Single Low-Voltage Rail-to-Rail Output Operational Amplifier
SN74LVC1G126: Single Bus Buffer Gate With 3-State Outputs

Product Information

Features

Single-Chip and Single-Supply Interface for IBM™ PC/AT™ Serial Port
ESD Protection for RS-232 Bus Pins
- ±15-kV Human-Body Model (HBM)
- ±8-kV IEC61000-4-2, Contact Discharge
- ±15-kV IEC61000-4-2, Air-Gap Discharge
Meets or Exceeds Requirements of TIA/EIA-232-F and ITU v.28 Standards
Operates With 3-V to 5.5-V V_CC Supply
Always-Active Noninverting Receiver Output (ROUT2B)
Designed to Transmit at a Data Rate up to 500 kbit/s
Low Standby Current . . . 1 µA Typ
External Capacitors . . . 4 × 0.1 µF
Accepts 5-V Logic Input With 3.3-V Supply
Designed to Be Interchangeable With Maxim MAX3243E
Serial-Mouse Driveability
Auto-Powerdown Feature to Disable Driver Outputs When No Valid
RS-232 Signal Is Sensed
Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB),
and Thin Shrink Small-Outline (PW) Packages
APPLICATIONS
- Battery-Powered Systems
- PDAs
- Notebooks
- Laptops
- Palmtop PCs
- Hand-Held Equipment

IBM, PC/AT are trademarks of International Business Machines Corporation.

Description

The MAX3243E device consists of three line drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, Contact Discharge) protection on serial-port connection pins. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. This combination of drivers and receivers matches that needed for the typical serial port 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, the device includes an always-active noninverting output (ROUT2B), which allows applications using the ring indicator to transmit data while the device is powered down. The device operates 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 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, both drivers and receivers (except ROUT2B) 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 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 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.

The MAX3243EC is characterized for operation from 0°C to 70°C. The MAX3243EI is characterized for operation from –40°C to 85°C.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
MAX3243ECDB	ACTIVE	0 to 70	1.00 \| 1ku	SSOP (DB) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243ECDBE4	ACTIVE	0 to 70	1.00 \| 1ku	SSOP (DB) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243ECDBG4	ACTIVE	0 to 70	1.00 \| 1ku	SSOP (DB) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243ECDBR	ACTIVE	0 to 70	0.90 \| 1ku	SSOP (DB) \| 28	View	2000 \| LARGE T&R
MAX3243ECDBRE4	ACTIVE	0 to 70	0.90 \| 1ku	SSOP (DB) \| 28	View	2000 \| LARGE T&R
MAX3243ECDBRG4	ACTIVE	0 to 70	0.90 \| 1ku	SSOP (DB) \| 28	View	2000 \| LARGE T&R
MAX3243ECDW	ACTIVE	0 to 70	1.00 \| 1ku	SOIC (DW) \| 28	View	20 \| TUBE	Purchase Samples
MAX3243ECDWG4	ACTIVE	0 to 70	1.00 \| 1ku	SOIC (DW) \| 28	View	20 \| TUBE	Purchase Samples
MAX3243ECDWR	ACTIVE	0 to 70	0.90 \| 1ku	SOIC (DW) \| 28	View	1000 \| LARGE T&R
MAX3243ECDWRG4	ACTIVE	0 to 70	0.90 \| 1ku	SOIC (DW) \| 28	View	1000 \| LARGE T&R
MAX3243ECPW	ACTIVE	0 to 70	1.00 \| 1ku	TSSOP (PW) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243ECPWE4	ACTIVE	0 to 70	1.00 \| 1ku	TSSOP (PW) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243ECPWG4	ACTIVE	0 to 70	1.00 \| 1ku	TSSOP (PW) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243ECPWR	ACTIVE	0 to 70	0.90 \| 1ku	TSSOP (PW) \| 28	View	2000 \| LARGE T&R
MAX3243ECPWRE4	ACTIVE	0 to 70	0.90 \| 1ku	TSSOP (PW) \| 28	View	2000 \| LARGE T&R
MAX3243ECPWRG4	ACTIVE	0 to 70	0.90 \| 1ku	TSSOP (PW) \| 28	View	2000 \| LARGE T&R
MAX3243ECRHBR	ACTIVE	0 to 70	0.90 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R		Purchase Samples
MAX3243ECRHBRG4	ACTIVE	0 to 70	0.90 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R		Purchase Samples
MAX3243EIDB	ACTIVE	-40 to 85	1.00 \| 1ku	SSOP (DB) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243EIDBG4	ACTIVE	-40 to 85	1.00 \| 1ku	SSOP (DB) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243EIDBR	ACTIVE	-40 to 85	0.90 \| 1ku	SSOP (DB) \| 28	View	2000 \| LARGE T&R	Purchase Samples
MAX3243EIDBRG4	ACTIVE	-40 to 85	0.90 \| 1ku	SSOP (DB) \| 28	View	2000 \| LARGE T&R	Purchase Samples
MAX3243EIDW	ACTIVE	-40 to 85	1.00 \| 1ku	SOIC (DW) \| 28	View	20 \| TUBE	Purchase Samples
MAX3243EIDWG4	ACTIVE	-40 to 85	1.00 \| 1ku	SOIC (DW) \| 28	View	20 \| TUBE	Purchase Samples
MAX3243EIDWR	ACTIVE	-40 to 85	0.90 \| 1ku	SOIC (DW) \| 28	View	1000 \| LARGE T&R
MAX3243EIDWRG4	ACTIVE	-40 to 85	0.90 \| 1ku	SOIC (DW) \| 28	View	1000 \| LARGE T&R
MAX3243EIPW	ACTIVE	-40 to 85	1.00 \| 1ku	TSSOP (PW) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243EIPWE4	ACTIVE	-40 to 85	1.00 \| 1ku	TSSOP (PW) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243EIPWG4	ACTIVE	-40 to 85	1.00 \| 1ku	TSSOP (PW) \| 28	View	50 \| TUBE	Purchase Samples
MAX3243EIPWR	ACTIVE	-40 to 85	0.90 \| 1ku	TSSOP (PW) \| 28	View	2000 \| LARGE T&R
MAX3243EIPWRE4	ACTIVE	-40 to 85	0.90 \| 1ku	TSSOP (PW) \| 28	View	2000 \| LARGE T&R
MAX3243EIPWRG4	ACTIVE	-40 to 85	0.90 \| 1ku	TSSOP (PW) \| 28	View	2000 \| LARGE T&R
MAX3243EIRHBR	ACTIVE	-40 to 85	0.90 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R
MAX3243EIRHBRG4	ACTIVE	-40 to 85	0.90 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 11:43 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 18 WeeksMAX3243ECDB
Asia	Farnell Asia	72
Europe	Abacus Polar	200
	Farnell	55
TI Lead Time*: 18 WeeksMAX3243ECDBE4
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243ECDBG4
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243ECDBR
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243ECDBRE4
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243ECDBRG4
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243ECDW
Americas	Arrow	930
	Avnet	800
Asia	Farnell Asia	561
Europe	Avnet-SILICA	360
	EBV Elektronik	>1k
	Farnell	510
	Spoerle	400
Worldwide	DigiKey	Available
	Mouser Electronics	60
TI Lead Time*: 18 WeeksMAX3243ECDWG4
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksMAX3243ECDWR
Americas	Avnet	1k
Worldwide	DigiKey	554
TI Lead Time*: 18 WeeksMAX3243ECDWRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksMAX3243ECPW
None Reported View Distributors
TI Lead Time*: 20 WeeksMAX3243ECPWE4
None Reported View Distributors
TI Lead Time*: 20 WeeksMAX3243ECPWG4
Europe	EBV Elektronik	100
TI Lead Time*: 20 WeeksMAX3243ECPWR
None Reported View Distributors
TI Lead Time*: 20 WeeksMAX3243ECPWRE4
None Reported View Distributors
TI Lead Time*: 20 WeeksMAX3243ECPWRG4
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243ECRHBR
Americas	Rochester Electronics	>1k
TI Lead Time*: 18 WeeksMAX3243ECRHBRG4
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243EIDB
Asia	Farnell Asia	442
Europe	Farnell	441
	Spoerle	50
TI Lead Time*: 18 WeeksMAX3243EIDBG4
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243EIDBR
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243EIDBRG4
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243EIDW
Americas	Arrow	>1k
Asia	Farnell Asia	783
Europe	Farnell	769
Worldwide	DigiKey	Available
	Mouser Electronics	774
TI Lead Time*: 18 WeeksMAX3243EIDWG4
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksMAX3243EIDWR
Americas	Arrow	1k
	Rochester Electronics	1k
Europe	Avnet-SILICA	>1k
	Compel	>1k
Worldwide	DigiKey	>1k
	Mouser Electronics	660
TI Lead Time*: 18 WeeksMAX3243EIDWRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksMAX3243EIPW
None Reported View Distributors
TI Lead Time*: 20 WeeksMAX3243EIPWE4
None Reported View Distributors
TI Lead Time*: 20 WeeksMAX3243EIPWG4
Asia	Farnell Asia	70
Europe	Farnell	68
TI Lead Time*: 20 WeeksMAX3243EIPWR
None Reported View Distributors
TI Lead Time*: 20 WeeksMAX3243EIPWRE4
None Reported View Distributors
TI Lead Time*: 20 WeeksMAX3243EIPWRG4
None Reported View Distributors
TI Lead Time*: 18 WeeksMAX3243EIRHBR
Americas	Avnet	>1k
TI Lead Time*: 18 WeeksMAX3243EIRHBRG4
None Reported View Distributors
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
MAX3243ECDB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECDBE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECDBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECDBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECDBRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECDBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECDW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECDWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECDWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECDWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECPW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECPWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECPWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECPWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECPWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243ECRHBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
MAX3243ECRHBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
MAX3243EIDB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIDBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIDBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIDBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIDW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIDWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIDWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIDWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIPW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIPWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIPWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIPWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIPWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
MAX3243EIRHBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
MAX3243EIRHBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for MAX3243E

Datasheet

3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver (Rev. C) (PDF, 738 KB)
16 Feb 2009

Solution Guides

Notebook Computer Guide (Rev. A) (PDF, 2854 KB) 16933 views
30 Sep 2008

Simulation Models

IBIS Model
- MAX3243E IBIS Model (Rev. A) (Multiple File Format) 131 views
  06 Sep 2007 Read Abstract

Part #	Name	Product Family	Comments
TRS3243E	3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15-kV IEC ESD Protection	INTERFACE - RS-232	The device is an EXACT EQUIVALENT in functionality and parametrics to the compared device.
Customers Who Evaluated This Product Also Evaluated...
MAX3243	3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15kV ESD (HBM) Protection	INTERFACE-RS-232	TI customers also evaluated this product.
MAX3232E	3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15kV IEC ESD Protection	INTERFACE-RS-232	TI customers also evaluated this product.
TRS3243E	3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15-kV IEC ESD Protection	INTERFACE-RS-232	TI customers also evaluated this product.
TPS5430	5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
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TFP410	PanelBus DVI Transmitter 165MHz	DISPLAY INTERFACE-PANELBUS (DVI)	TI customers also evaluated this product.
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MAX3243E Status: ACTIVE

3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15kV IEC ESD Protection

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