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MAX13485E, MAX13486E
Half-Duplex RS-485/RS-422 Transceivers in µDFN
Industry's Smallest RS-485 Transceiver with Enhanced ESD Protection
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Status
Active: In Production.
Description
The MAX13485E/MAX13486E +5V, half-duplex, ±15kV ESD-protected RS-485 transceivers feature one driver and one receiver. These devices include fail-safe circuitry, guaranteeing a logic-high receiver output when receiver inputs are open or shorted. The receiver outputs a logic-high if all transmitters on a terminated bus are disabled (high impedance). The MAX13485E/MAX13486E include a hot-swap capability to eliminate false transitions on the bus during power-up or live-insertion.
The MAX13485E features reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free transmission up to 500kbps. The MAX13486E driver slew rate is not limited, allowing transmit speeds up to 16Mbps.
The MAX13485E/MAX13486E feature a 1/4-unit load receiver input impedance, allowing up to 128 transceivers on the bus. These devices are intended for half-duplex communications. All driver outputs are protected to ±15kV ESD using the Human Body Model. The MAX13485E/MAX13486E are available in 8-pin SO and space-saving 8-pin µDFN packages. The devices operate over the extended -40°C to +85°C temperature range.
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Data Sheet
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An evaluation kit is available: MAX13485EEVKIT
Key Features
- +5V Operation
- True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility
- Hot-Swappable for Telecom Applications
- Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission (MAX13485E)
- High-Speed Version (MAX13486E) Allows for Transmission Speeds Up to 16Mbps
- Extended ESD Protection for RS-485/RS-422 I/O Pins ±15kV Using Human Body Model
- 1/4 Unit Load, Allowing Up to 128 Transceivers on the Bus
- Available in Space-Saving 8-Pin μDFN or Industry Standard 8-Pin SO Packages
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Applications/Uses
- Automated HVAC Systems
- Industrial Controls
- Industrial Motor Drives
- Utility Meters
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Key Specifications:
| RS-422/485 Line Driver/Receivers |
| Part Number |
Tx/Rx |
Duplex |
VSUPPLY
(V) |
ICC
(mA) |
Data Rate
(kbps) |
ESD Protect.
(±kV) |
Tx EN |
Rx EN |
ICC (Shutdn.)
(µA) |
Rx/Tx on Bus |
Package/Pins |
Budgetary Price |
| typ |
min |
typ |
See Notes |
| MAX13485E |
1Tx + 1Rx |
Half |
5 |
4.5 |
500 |
15 |
Yes |
Yes |
10 |
128 |
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$1.36 @1k |
| MAX13486E |
16000 |
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$1.36 @1k |
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See All RS-422/485 Line Driver/Receivers (165)
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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.
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Diagram
Pin Configurations
Application Notes
Product Guides
Reliability Reports
| Reliability Report: |
MAX13485E.pdf |
| Show FIT data for: |
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| Request Reliability Report for: |
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX13485EELA+
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Active |
µDFN;8 pin;4.2 mm²
Outline Drawing:21-0164 (PDF)
Land Pattern: 90-0005 (PDF)
Use pkgcode/variation: L822+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX13485EELA+T
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Active |
µDFN;8 pin;4.2 mm²
Outline Drawing:21-0164 (PDF)
Land Pattern: 90-0005 (PDF)
Use pkgcode/variation: L822+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX13485EESA+
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Active |
SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX13485EESA+T
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Active |
SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX13486EELA+
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Active |
µDFN;8 pin;4.2 mm²
Outline Drawing:21-0164 (PDF)
Land Pattern: 90-0005 (PDF)
Use pkgcode/variation: L822+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX13486EELA+T
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Active |
µDFN;8 pin;4.2 mm²
Outline Drawing:21-0164 (PDF)
Land Pattern: 90-0005 (PDF)
Use pkgcode/variation: L822+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX13486EESA+
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Active |
SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX13486EESA+T
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Active |
N.SO;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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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; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product 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.
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Information Index
Document Ref.: 19-0742
Rev 0;
2007-02-09
This page last modified: 2009-09-01
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