MAX3380E, MAX3381E +2.35V to +5.5V, 1µA, 2Tx/2Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins

Description

The MAX3380E/MAX3381E are +2.35V to +5.5V-powered EIA/TIA-232 and V.28/V.24 communication interfaces with low power requirements, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection on both the TTL and RS-232 sides. The MAX3380E/MAX3381E have two receivers and two transmitters. All RS-232 inputs, outputs, and logic input pins are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge method and the Human Body Model, and ±8kV using IEC 1000-4-2 Contact Discharge method.

The proprietary low-dropout transmitter output stage enables true RS-232 performance from a +3.1V to +5.5V supply with a dual charge pump. The parts reduce the transmitter output levels to RS-232-compatible levels with no increase in supply current for supplies less than +3.1V and greater than +2.35V. The +2.35V to +5.5V operating range is fully compatible with lithium-ion (Li+) batteries. The charge pump requires only four small 0.1µF capacitors for operation.

The MAX3380E/MAX3381E transceivers use Maxim's revolutionary AutoShutdown Plus™ feature to automatically enter a 1µA shutdown mode. These devices shut down the on-board power supply and drivers when they do not sense a valid signal transition for 30 seconds on either the receiver or transmitter inputs.

The MAX3380E is capable of transmitting data at rates of 460kbps while maintaining RS-232 output levels, and the MAX3381E operates at data rates up to 250kbps. The MAX3381E offers a slower slew rate for applications where noise and EMI are issues. The MAX3380E/MAX3381E have a unique V_L pin that allows interoperation in mixed-logic voltage systems down to +1.65V. Both input and output logic levels are referenced to the V_L pin. The MAX3380E/MAX3381E are available in a space-saving TSSOP package.

Key Features

Applications/Uses

±15kV ESD Protection on All CMOS and RS-232 Inputs and Outputs (Except active-low INVALID)
- ±15kV Human Body Model
- ±15kV IEC 1000-4-2 Air-Gap Discharge
- ±8kV IEC 1000-4-2 Contact Discharge
Operates Over Entire Li+ Battery Range
Low Logic Threshold Down to +1.65V for Compatibility with Cell Phone Logic Supply Voltages
1µA Low-Power AutoShutdown Plus Mode
Compatible with Next-Generation GSM Data Rates
20-Pin TSSOP Package

	Cellular Data Cables
	Digital Still Cameras
	GPS Receivers
	PDA Data Lump Cables

Key Specifications: RS-232 Line Driver/Receivers

Part Number

Supply Voltage (V)

Number of Tx

Number of Rx

Data Rate (kbps)

Typ. I_CC Current (mA)

Internal Charge Pump

Number of Ext. Caps

Nom. Cap. Value (µF)

ESD Protection (±kV)

Number of Rx Active in Shutdown

Features

RoHS Available

Package

Operating Temp. Range (°C)

Price^**

MAX3380E

2.5
3
3.3
5

460

0.3

Yes

0.1

•	Auto-Shutdown Plus

•	Low Voltage Logic Compatibility (VL)

•	Micropower

•	Mixed Logic Voltage

•

Shutdown

•	Signal-Invalid O/P

•	Three State Rx O/P

•	Three State Tx

•	True RS-232

Yes

TSSOP/20

-40 to +85
0 to +70

$2.78 @ 1k

MAX3381E

250

•	Auto-Shutdown Plus

•	Low Voltage Logic Compatibility (VL)

•	Micropower

•	Mixed Logic Voltage

•	Signal-Invalid O/P

•	Three State Rx O/P

•	Three State Tx

•	True RS-232

$2.78 @ 1k

See All RS-232 Line Driver/Receivers (138)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-16 of 16

MAX3380E

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX3380ECUP

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX3380ECUP-T

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX3380ECUP+T

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX3380ECUP+

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX3380EEUP

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX3380EEUP-T

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX3380EEUP+T

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX3380EEUP+

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX3381E

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX3381ECUP+

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX3381ECUP+T

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX3381ECUP-T

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX3381ECUP

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX3381EEUP+T

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX3381EEUP-T

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX3381EEUP

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX3381EEUP+

TSSOP;20 pin;
Dwg: 21-0066J (PDF)
Use pkgcode/variation: U20+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis