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MAX14830ETM+

Description
Quad Serial UART with 128-Word FIFOs
CategoryThe embedded processor and controller    Microcontrollers and processors   
File Size2MB,68 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
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MAX14830ETM+ Overview

Quad Serial UART with 128-Word FIFOs

MAX14830ETM+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeQFN
package instructionHVQCCN, LCC48,.27SQ,20
Contacts48
Reach Compliance Codecompli
ECCN codeEAR99
Factory Lead Time13 weeks
Samacsys DescriptiMAX14830ETM+, Universal Asynchronous Receiver & Transmitter 4-channel RS485 24MBd, 2.35 → 3.6 V, 48-Pin, TQFN
Address bus width
boundary scanNO
maximum clock frequency4 MHz
letter of agreementASYNC, BIT; SYNC, BYTE
External data bus width
JESD-30 codeS-XQCC-N48
JESD-609 codee3
length7 mm
low power modeYES
Humidity sensitivity level1
Number of serial I/Os4
Number of terminals48
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialUNSPECIFIED
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC48,.27SQ,20
Package shapeSQUARE
Package formCHIP CARRIER
Peak Reflow Temperature (Celsius)260
power supply1.8,2.5/3.3 V
Certification statusNot Qualified
Maximum seat height0.8 mm
Maximum supply voltage3.6 V
Minimum supply voltage2.35 V
Nominal supply voltage2.5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperature30
width7 mm
uPs/uCs/peripheral integrated circuit typeSERIAL IO/COMMUNICATION CONTROLLER, SERIAL
EVALUATION KIT AVAILABLE
MAX14830
General Description
Quad Serial UART with 128-Word FIFOs
Benefits and Features
The MAX14830 is an advanced quad universal asynchro-
nous receiver-transmitter (UART), each UART having
128 words of receive and transmit first-in/first-out (FIFO)
and a high-speed serial peripheral interface (SPI) or I
2
C
controller interface. A PLL and fractional baud-rate
generators allow a high degree of flexibility in baud-rate
programming and reference clock selection.
Each of the four UARTs is selected by in-band SPI/I
2
C
addressing. Logic-level translation on the transceiver and
controller interfaces allows ease of interfacing to micro-
controllers, FPGAs, and transceivers that are powered by
differing supply voltages.
Extensive features simplify transceiver control in
half-duplex communication applications. The MAX14830
features the ability to synchronize the start of individual
UART’s transmission by SPI-based triggering. On-board
timers allow programming of delays between transmitters
as well as clock generation on GPIOs.
The 128-word FIFOs have advanced FIFO control
reducing host processor data flow management.
The MAX14830 is available in a 48-pin TQFN (7mm
x 7mm) package and is specified to operate. over the
extended -40°C to +85°C temperature range.
Bridges an SPI/MICROWIRE or I
2
C Microprocessor
Bus to an Asynchronous Interface like RS-485,
RS-232, or IrDA
SM
• SIR- and MIR-Compliant IrDA Encoder/Decoder
• Line Noise Indication Ensures Data Link Integrity
Deep, 128-Word Buffer and Automated Control
Features Help Offload Activity on the Microcontroller
• 128-Word Transmit and Receive FIFOs per UART
• Transmitter Synchronization Through SPI Commands
• Automatic Hardware Flow Control Using
RTS_
and
CTS_
Outputs and Inputs
• Automatic Software Flow Control (XON/XOFF)
• Auto Transceiver Direction Control
• Programmable Setup and Hold Times for Transceiver
Control
• Auto Transmitter Disable
• Half-Duplex Echo Suppression
• 9-Bit Multidrop-Mode Data Filtering
Special Character Detection
GPIO-Based Character Detection
Four Timers Routed to GPIOs
16 Flexible GPIOs with 20mA Drive Capability
Saves Board Space
• TQFN (7mm x 7mm) Package
Fast Data Rates Allow Maximum System Flexibility
Across Interface Standards
• 6Mbaud (max) Data Rate in 16x Sampling Mode
• 12/24Mbaud (max) Data Rate in 2x/4x Rate Modes
• High-Resolution Programmable Baud-Rate
• SPI Up to 26MHz Clock Rate
• Fast Mode Plus (Pm+) I
2
C Up to 1MHz
Integrated Internal Oscillator Eliminates the Need for
an External Oscillator and Reduces the BOM Cost
• Fractional Baud-Rate Generators, Predivider, and
Phase-Locked Loop (PLL)
• Logic-Level Translation Down to 1.61V on the Con-
troller and Transceiver Interfaces Ensures System
Compatibility
• Register Compatible with MAX3107, MAX3108,
MAX3109
Applications
Industrial Control Systems
Programmable Logic Controllers (PLC)
IO-Link Master Controllers
Medical Systems
Point-of-Sales Systems
Airplane Communication Buses
Typical Operating Circuit
and
Ordering Information
appear
at end of data sheet.
IrDA is a registered service mark of Infrared Data Association
Corporation.
19-5547; Rev 7; 2/16

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