MAX3107 Datasheet, PDF (1/51 Pages) Maxim Integrated Products – SPI/I2C UART with 128-Word FIFOs and Internal Oscillator

19-5014; Rev 0; 10/09
SPI/I²C UART with 128-Word FIFOs
and Internal Oscillator
General Description
The MAX3107 is an advanced universal asynchronous
receiver-transmitter (UART) with 128 words each of
receive and transmit first-in/first-out (FIFO) that can be
controlled through I²C or high-speed SPI™. An internal
oscillator reduces the need for an external crystal or
clock source. The 2x and 4x rate modes allow a maxi-
mum of 24Mbps data rates. A phase-locked loop (PLL),
prescaler, and fractional baud-rate generator allow for
high-resolution baud-rate programming and minimize
the dependency of baud rate on reference clock fre-
quency.
Autosleep and shutdown modes help reduce power
consumption during periods of inactivity. A low 640µA
(typ) supply current and tiny 24-pin TQFN (3.5mm x
3.5mm) package make the MAX3107 ideal for low-power
portable devices.
Integrated logic-level translation on the controller and
transceiver (RX/TX and RTS/CTS) interfaces enable use
with a wide selection of RS-232/RS-485 transceivers.
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 MAX3107 to be used in high-speed appli-
cations, for example Profibus-DP.
The MAX3107 is ideal for use in portable devices,
industrial applications, and automotive applications. The
MAX3107 is available in a 24-pin SSOP package and a
24-pin TQFN package. It is specified over the -40NC to
+85NC extended ambient temperature range.
Applications
Portable Devices
Industrial Control Systems
Fieldbus Networks
Automotive Infotainment Systems
Medical Systems
Point-of-Sale Systems
HVAC or Building Control
Features
S Tiny 24-Pin, Lead-Free TQFN (3.5mm x 3.5mm)
and 24-Pin, Lead-Free SSOP Packages
S Integrated Internal Oscillator
S 24Mbps (max) Data Rate
S Integrated PLL and Divider
S Fractional Baud-Rate Generator
S SPI Up to 26MHz Clock Rate
S Autotransceiver Direction Control
S Half-Duplex Echo Suppression
S Automatic RTS/CTS and XON/XOFF Flow Control
S Special Character Detection
S GPIO-Based Character Detection
S 9-Bit Multidrop-Mode Data Filtering
S SIR- and MIR-Compliant IrDA Encoder/Decoder
S +2.35V to +3.6V Supply Range
S Logic-Level Translation on the Controller and
Transceiver Interfaces (Down to 1.7V)
S Four Flexible GPIOs
S Line Noise Indication
S Shutdown and Autosleep Modes
S Low 640µA (typ) Supply Current at 1Mbaud and
20MHz Clock
S Low 20µA (typ) Shutdown Power
Ordering Information
PART
MAX3107EAG+
TEMP RANGE
-40NC to +85NC
PIN-PACKAGE
24 SSOP
MAX3107ETG+ -40NC to +85NC 24 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Functional Diagram appears at end of data sheet.
SPI is a trademark of Motorola, Inc.
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For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.