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MAX3109

Maxim Integrated
Part Number MAX3109
Manufacturer Maxim Integrated
Description Dual Serial UART
Published Oct 4, 2016
Detailed Description MAX3109 Dual Serial UART with 128-Word FIFOs General Description The MAX3109 advanced dual universal asynchronous rece...
Datasheet PDF File MAX3109 PDF File

MAX3109
MAX3109

Overview
MAX3109 Dual Serial UART with 128-Word FIFOs General 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 PROFIBUSDP.
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.
Applications ●● Handheld Devices ●● Power Meters ●● Programmable Logic Controllers (PLCs) ●● Medical Systems ●● Point-of-Sales Systems ●● HVAC or Building Control Functional Diagram LDOEN SPI/I2C MOSI/A1 MISO/SDA CS/A0 SCLK/SCL RST IRQ XIN XOUT VL VCC LOGIC-LEVEL TRANSLATION LDO SPI AND I2C INTERFACE V18 TRANSMITTER SYNC 2 UART0 REGISTERS AND CONTROL MAX3109 CRYSTAL OSCILLATOR FRACTIONAL 2 DIVIDER PLL BAUD-RATE GENERATOR AGND UART1 DGND VEXT LOGIC-LEVEL TRANSLATION TX0 RX0 CTS0 RTS0 GPIO0 GPIO1 GPIO2 GPIO3 TX1 RX1 CTS1 RTS1 GPIO4 GPIO5 GPIO6 GPIO7 IrDA is a service mark of Infrared Data Association Corporation.
Benefits and Features ●● Bridges an SPI/MICROWIRE or I2C Microprocessor Bus to an Asynchronous Interface Such as RS-485, RS-232, or IrDASM • SIR- and MIR-Co...


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