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MAX3109
Dual Serial UART with 128-Word FIFOs
Industry's Most Advanced Dual SPI/I²C UART Increases System Flexibility
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Status
Active: In Production.
Description
The MAX3109 advanced dual universal asynchronous receiver-transmitter (UART) has 128 words of receive and transmit first-in/first-out (FIFO) and a high-speed SPI™ or I²C controller interface. The 2x and 4x rate modes allow a maximum of 24Mbps data rates. A phase-locked loop (PLL) and the fractional baud-rate generators allow a high degree of flexibility in baud-rate programming and reference clock selection.
Independent logic-level translation on the transceiver and controller interfaces allows ease of interfacing to microcontrollers, FPGAs, and transceivers that are powered by differing supply voltages.
Automatic hardware and software flow control with selectable FIFO interrupt triggering offloads low-level activity from the host controller. Automatic half-duplex transceiver control with programmable setup and hold times allow the MAX3109 to be used in high-speed applications such as PROFIBUS-DP. The 128-word FIFOs have advanced FIFO control, reducing host processor data flow management.
The MAX3109 is available in a 32-pin TQFN (5mm x 5mm) package, and is specified over the -40°C to +85°C extended temperature range.
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Data Sheet
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Key Features
- 24Mbps (max) Baud Rate
- Integrated PLL and Divider
- 1.71V to 3.6V Supply Range
- High-Resolution Programmable Baud Rate
- SPI Up to 26MHz Clock Rate
- Fast Mode Plus I²C Up to 1MHz
- Automatic, Active-Low RTS_ and CTS_ Flow Control
- Automatic XON/XOFF Software Flow Control
- Special Character Detection
- 9-Bit Multidrop Mode Data Filtering
- SIR- and MIR-Complaint IrDASM Encoder/Decoder
- Flexible Logic Levels on the Controller and Transceiver Interfaces
- Line Noise Indication
- Transmitter Synchronization
- Two Timers Routed to GPIOs
- 8 Flexible GPIOs with 20mA Drive Capability
- Register Compatible with MAX3107, MAX3108, and MAX14830
- Small TQFN (5mm x 5mm) Package
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Applications/Uses
- Automotive Infotainment Systems
- HVAC or Building Control
- Industrial Control Systems
- Medical Systems
- Point-of-Sales Systems
- Power Meters
- Programmable Logic Controllers (PLCs)
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Key Specifications:
| SPI/Microwire-Compatible UARTs |
| Part Number |
µP I/F |
Channels |
ICC
(mA) |
VSUPPLY
(V) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Oper. Temp.
(°C) |
Budgetary Price |
| typ |
max w/pins |
See Notes |
| MAX3109 |
SPI and I2C Compatible |
2 |
0.5 |
1.7 to 3.6 |
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26 |
-40 to +85 |
$4.82 @1k |
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See All SPI/Microwire-Compatible UARTs (8)
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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
Functional Diagram
Application Notes
Product Guides
Reliability Reports
| 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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| MAX3109ETJ+
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Active |
TQFN;32 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0012 (PDF)
Use pkgcode/variation: T3255+4*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX3109ETJ+T
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Active |
TQFN;32 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0012 (PDF)
Use pkgcode/variation: T3255+4*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
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.: 19-5806
Rev 0;
2011-04-14
This page last modified: 2011-04-14
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