MAX3108 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX3108 Datasheet PDF : 56 Pages
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MAX3108
SPI/I2C UART with 128-Word FIFOs in WLP
General Description
The MAX3108 small form factor universal asynchronous
receiver-transmitter (UART) with 128 words each of
receive and transmit FIFOs is controlled through a serial
I2C or SPI controller interface. Auto-sleep and shutdown
modes help reduce power consumption during periods
of inactivity. A low 500FA (max) supply current and tiny
25-bump WLP (2.1mm x 2.1mm) package make the
MAX3108 ideal for low-power portable devices. The
MAX3108 operates from a supply voltage of 1.71V to 3.6V.
Baud rates up to 24Mbps make the MAX3108 suitable for
today’s high data rate applications. A phase-locked loop
(PLL), predivider, and fractional baud-rate generator allow
high-resolution baud-rate programming and minimize the
dependency of baud rate on reference clock frequency.
Four GPIOs can be used as inputs, outputs, or interrupt inputs.
When configured as outputs, they can be programmed to be
open-drain outputs and sink up to 20mA of current.
The MAX3108 is ideal for portable and handheld devic-
es, is available in a 25-bump (2.1mm x 2.1mm) 0.4mm
pitch WLP package, and is specified over the -40NC to
+85NC extended temperature range.
Applications
Portable Communication Devices
Mobile Internet Devices
Low-Power Handheld Devices
Medical Systems
Point-of-Sale Systems
IrDA is a service mark of Infrared Data Association Corporation.
Features
S 24Mbps (max) Baud Rate
S Integrated PLL and Divider
S 1.71V to 3.6V Supply Range
S High-Resolution Programmable Baud Rate
S SPI Up to 26MHz Clock Rate
S Fast Mode Plus I2C Up to 1MHz
S Automatic RTS and CTS Hardware Flow Control
S Automatic XON/XOFF Software Flow Control
S Special Character Detection
S 9-Bit Multidrop Mode Data Filtering
S SIR- and MIR-Compliant IrDASM Encoder/Decoder
S Flexible Logic Levels on the Controller and
Transceiver Interfaces
S Four Flexible GPIOs
S Line Noise Indication
S Shutdown and Auto-Sleep Modes
S Low 35FA (max) VCC Shutdown Current
S Register Compatible with the MAX3107
S Tiny 25-Bump WLP Package (2.1mm x 2.1mm)
Ordering Information
PART
MAX3108EWA+T
TEMP RANGE
-40NC to +85NC
PIN-PACKAGE
25 WLP
+Denotes a lead (Pb)-free/RoHS-compliant package.
Functional Diagram
VL
LDOEN
VCC
V18
LDO
MAX3108
VEXT
SPI/I2C
MOSI/A1
MISO/SDA
CS/A0
SCLK/SCL
RST
IRQ
LOGIC-LEVEL
TRANSLATION
SPI/I2C
REGISTERS
AND
CONTROL
Tx AND FIFO
FLOW
CONTROL
Rx AND FIFO
TX
CTS
RTS
LOGIC-LEVEL
TRANSLATION
RX
XIN
CRYSTAL
XOUT
OSCILLATOR
FRACTIONAL
GPIO
DIVIDER
PLL
BAUD-RATE
GENERATOR
GPIO0
GPIO1
GPIO2
GPIO3
AGND
DGND
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-5723; Rev 2; 1/13
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