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MAX3224E, MAX3225E, MAX3226E, MAX3227E, MAX3244E, MAX3245E

±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus
 Overview   Technical Documents   Ordering Info   Related Products   User Comments (0)   All   


Status Explanations for product status codes

Active: In Production.

Description

The MAX3224E/MAX3225E/MAX3226E/MAX3227E/MAX3244E/MAX3245E are 3V-powered EIA/TIA-232 and V.28/V.24 communications interfaces with automatic shutdown/wakeup features, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge, and ±15kV using the Human Body Model.

All devices achieve a 1µA supply current using Maxim's revolutionary AutoShutdown Plus™ feature. These devices automatically enter a low-power shutdown mode when the RS-232 cable is disconnected or the transmitters of the connected peripherals are inactive, and the UART driving the transmitter inputs is inactive for more than 30 seconds. They turn on again when they sense a valid transition at any transmitter or receiver input. AutoShutdown Plus saves power without changes to the existing BIOS or operating system.

The MAX3225E/MAX3227E/MAX3245E also feature MegaBaud™ operation, guaranteeing 1Mbps for high-speed applications such as communicating with ISDN modems. The MAX3224E/MAX3226E/MAX3244E guarantee 250kbps operation. The transceivers have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a +3.0V to +5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a 3.3V supply. The MAX3224E–MAX3227E feature a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting.

All devices are available in a space-saving TQFN, SSOP, and TSSOP (MAX3224E/MAX3225E/MAX3244E/MAX3245E) packages.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 10 (PDF, 269.4kB)
Send this datasheet to any email addressE-Mail

Key Features

  • For Space-Constrained Applications:
    • MAX3228E/MAX3229E: ±15kV ESD-Protected, +2.5V to +5.5V, RS-232 Transceivers in UCSP™
    • MAX3222E/MAX3232E/MAX3241E/MAX3246E: ±15kV ESD-Protected, Down to 10nA, +3.0V to +5.5V, Up to 1Mbps, True RS-232 Transceivers (MAX3246E Available in UCSP)
  • For Low-Voltage or Data Cable Applications:
    • MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA, 2Tx/2Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins
 

Applications/Uses

  • Battery-Powered Equipment
  • Cellular Phones
  • Handheld Equipment
  • Notebook, Subnotebook, and Palmtop Computers
  • Peripherals
  • Printers
   

Key Specifications:

RS-232 Line Driver/Receivers
Part Number VSUPPLY
(V)		 Tx Rx Data Rate
(kbps)		 ICC
(mA)		 Internal Charge Pump Ext. Caps Cap. Value
(µF)		 ESD Protect.
(±kV)		 Rx Active in Shutdn Package/Pins Budgetary Price
min typ nom See Notes
MAX3224E 
3.3
5
 2 2 250 0.3 Yes 4 0.1 15 2
PDIP(N)/20
SSOP/20
TQFN/20
TSSOP/20
 $1.78 @1k
MAX3225E  2 2 1000 2
PDIP(N)/20
SSOP/20
TQFN/20
TSSOP/20
 $1.56 @1k
MAX3226E  1 1 250 2
SSOP/16
TQFN/16
TSSOP/16
 $1.27 @1k
MAX3227E  1 1 1000 2
SSOP/16
TQFN/16
TSSOP/16
 $1.27 @1k
MAX3244E  3 5 250 5
SOIC(W)/28
SSOP/28
TSSOP/28
 $3.93 @1k
MAX3245E  3 5 1000 5
SOIC(W)/28
SSOP/28
TQFN/36
TSSOP/28
 $3.93 @1k
See All RS-232 Line Driver/Receivers (152)
Pricing 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.


Diagram

MAX3224E, MAX3225E, MAX3226E, MAX3227E, MAX3244E, MAX3245E: Typical Operating Circuits
Typical Operating Circuits

Application Notes

Application Note 639   Maxim Leads the Way in ESD Protection
Application Note 651   ESD Protection for I/O Ports
Tutorial 739   Design Considerations for Data-Lump Cables
Application Note 836   Selecting and using RS-232 Interface Parts for Your Power Supply Voltages
Tutorial 2141   Determining Clock Accuracy Requirements for UART Communications
Application Note 4223   The evolution of the RS-232 transceiver
Tutorial 4991   Oops...Practical ESD Protection vs. Foolhardy Placebos
Tutorial 4993   Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface

Product Guides

Interface (PDF)

Reliability Reports

Reliability Report: MAX3224E.pdf MAX3225E.pdf MAX3226E.pdf MAX3227E.pdf MAX3244E.pdf MAX3245E.pdf
Show FIT data for:

Software/Models

MAX3225E IBIS Model

Ordering Information

Filters: Part Number: Package: Temperature: Tape and Reel Sample
Devices: 1-50 / 185 <-- Previous  1 2 3 4   Next -->
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX3224EAAP    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-2*
-40°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX3224EAAP+  
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224EAAP+T    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224EAAP-T    
Active SSOP;

Land Pattern: Not Available

-40°C to +125°C See data sheet
MAX3224EAAP/GG8    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-2*
-40°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX3224ECAP    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-2*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX3224ECAP+  
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224ECAP+T    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224ECAP-T    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-2*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX3224ECPP    
Active PDIP(N);20 pin;217.1 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX3224ECPP+  
Active PDIP(N);20 pin;217.1 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224ECTP    
Active TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055-5*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX3224ECTP-T    
Active QFN;20 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX3224ECUP    
Active TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20-2*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX3224ECUP+  
Active TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20+2*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224ECUP+T    
Active TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20+2*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224ECUP-T    
Active TSSOP;20 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MAX3224EEAP    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-2*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX3224EEAP+  
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224EEAP+T    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX3224EEAP-T    
Active SSOP;20 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX3224EEPP    
Active PDIP(N);20 pin;217.1 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX3224EEPP+  
Active PDIP(N);20 pin;217.1 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+3*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224EETP    
Active TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055-5*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX3224EETP+  
Active TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055+5*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224EETP+T    
Active TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055+5*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224EETP-T    
Active QFN;20 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX3224EEUP    
Active TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20-2*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX3224EEUP+  
Active TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20+2*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3224EEUP+T    
Active TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20+2*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX3224EEUP-T    
Active TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20-2*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX3225EAAP    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-2*
-40°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX3225EAAP+  
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3225EAAP+T    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3225EAAP-T    
Active SSOP;

Land Pattern: Not Available

-40°C to +125°C See data sheet
MAX3225ECAP    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-2*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX3225ECAP+  
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3225ECAP+T    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+2*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3225ECAP-T    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-2*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX3225ECPP    
Active PDIP(N);20 pin;217.1 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX3225ECPP+  
Active PDIP(N);20 pin;217.1 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3225ECTP    
Active TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055-5*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX3225ECTP+  
Active TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055+5*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3225ECTP+T    
Active QFN;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX3225ECTP-T    
Active QFN;20 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX3225ECUP    
Active TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20-2*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX3225ECUP+  
Active TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20+2*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3225ECUP+T    
Active TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20+2*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3225ECUP-T    
Active TSSOP;20 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MAX3225EEAP    
Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-2*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
Devices: 1-50 / 185 <-- Previous  1 2 3 4   Next -->

Notes:
  1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
  2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
  3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
  4. * 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.

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Products with Similar Part Numbers

MAX3224, MAX3225, MAX3226, ... 1µA Supply Current, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus


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Ordering Info

  

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Description
Key Features
Applications/Uses
Key Specifications
Diagram
Notes and Comments
  Data Sheet
Application Notes
Evaluation Kits
Product Guides
Reliability Reports
Software/Models
  Price and Availability
Samples
Buy Online
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Document Ref.: 19-1339 Rev 10; 2011-09-20
This page last modified: 2011-09-20

 


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