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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 812kB) Download   E-Mail

Description

The MAX3228/MAX3229 are +2.5V to +5.5V powered EIA/TIA-232 and V.28/V.24 communications interfaces with low power requirements, and high data-rate capabilities, in a chip-scale package (UCSP™). The MAX3228/MAX3229 achieve a 1µA supply current with Maxim's AutoShutdown™ feature. They save power without changes to existing BIOS or operating systems by entering low-power shutdown mode when the RS-232 cable is disconnected, or when the transmitters of the connected peripherals are off. The transceivers have a proprietary low-dropout transmitter output stage, delivering RS-232 compliant performance from a +3.1V to +5.5V supply, and RS-232 compatible performance with a supply voltage as low as +2.5V. The dual charge pump requires only four small 0.1µF capacitors for operation from a +3.0V supply. Each device is guaranteed to run at data rates of 250kbps while maintaining RS-232 output levels. The MAX3228/MAX3229 offer a separate power-supply input for the logic interface, allowing configurable logic levels on the receiver outputs and transmitter inputs. Operating over a +1.65V to VCC range, VL provides the MAX3228/MAX3229 compatibility with multiple logic families. The MAX3229 contains one receiver and one transmitter. The MAX3228 contains two receivers and two transmitters. The MAX3228/MAX3229 are available in tiny chip-scale packaging and are specified across the extended industrial temperature range of -40°C to +85°C.

Key Features		Applications/Uses
6 x 5 Chip-Scale Packaging (UCSP) 1µA Low-Power AutoShutdown 250kbps Guaranteed Data Rate Meets EIA/TIA-232 Specifications Down to +3.1V RS-232 Compatible to +2.5V Allows Operation from Single Li+ Cell Small 0.1µF Capacitors Configurable Logic Levels		Cell Phones Cellular Data Cables Handheld Devices PDAs and Other Handheld Devices Set-Top Boxes

Diagram

Typical Operating Circuit

Application Notes

Application Note 639: Maxim Leads the Way in ESD Protection - MAX3228 Application Note 651: ESD Protection for I/O Ports - MAX3228 Application Note 2141: Determining Clock Accuracy Requirements for UART Communications - MAX3228, MAX3229

Design Guides

Interface (PDF)

Reliability Reports

Show FIT data for: MAX3228 MAX3229 Request Reliability Report for: MAX3228 MAX3229

Software/Models

none

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: 1-4 of 4

MAX3228	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3228EBV-T			Active	UCSP;20 pin;8.4 mm² Outline Drawing: 21-0123 (PDF) Land Pattern: Not Available Use pkgcode/variation: B30-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3228AEEWV+T			Active	WLP;30 pin;0 mm² Outline Drawing: (PDF) Land Pattern: Not Available Use pkgcode/variation: W302A3+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3229	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3229EBV-T			Active	UCSP;20 pin;8.4 mm² Outline Drawing: 21-0123 (PDF) Land Pattern: Not Available Use pkgcode/variation: B30-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3229AEEWV+T			Active	WLP;30 pin;0 mm² Outline Drawing: (PDF) Land Pattern: Not Available Use pkgcode/variation: W302A3+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2001-08-28

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