Key facts
- Manuals
- 45
- Models
- 4
- Languages
- EN
- Last added
- 2026-10-03
EXAR models by category
Featured EXAR manuals
Exar PCIe-400i Series 4-Port RS-422/485 PCI Express Serial Card User Manual
This manual describes the Exar PCIe-400i and PCIe-400i‑SI 4‑port RS‑422/485 PCI Express serial cards. It provides full product specifications, connector pin‑outs, DIP‑switch configuration for operation mode, termination and biasing, and wiring guidelines.
Key sections include hardware and software settings, enabling automatic direction control for RS‑485, detailed wiring diagrams, driver installation and uninstall procedures, and safety approvals. The document is intended for system integrators and technicians who need to configure and maintain the card in Windows environments.
Covers: SPECIFICATIONS · PIN‑OUT INFORMATION · HARDWARE AND SOFTWARE SETTINGS · Enabling Termination and Biasing Resistors · Automatic Direction Control in RS‑485 Mode · WIRING INFORMATION FOR RS‑422/485
Exar PCIe-800i RS-422/485 Serial Card User Manual
The PCIe‑800i is an 8‑port RS‑422/485 serial I/O card that plugs into a single‑lane PCI Express slot. It supports both RS‑422 full‑duplex and RS‑485 full‑ or half‑duplex modes, with optional 3000 V DC optical isolation on the -SI version. The card includes a DB44 high‑density connector, 256‑byte FIFO per port, and 15 kV ESD protection.
The manual details hardware settings such as DIP‑switch mode selection, jumper‑controlled termination resistors, and automatic direction control for RS‑485. It also walks through driver installation on Windows, wiring recommendations, and how to uninstall the drivers when needed.
Covers: Specifications · Pin‑out Information · Hardware and Software Settings · Enabling Termination Resistors · Automatic Direction Control · Wiring Information
Exar XRP6141 Evaluation Board User Manual
The Exar XRP6141 evaluation board manual provides a complete overview of the synchronous step‑down controller, its features, and how to set up the board. It includes a general description, pin assignments, power‑up procedure, schematics, bill of materials and board layout.
The document also details jumper settings for Forced CCM or DCM/CCM operation, protection features, and revision history, helping engineers quickly evaluate and prototype designs using the XRP6141 controller.
Covers: General Description · Pin Assignment · Power‑up Procedure · Evaluation Board Schematics · Bill of Material · Evaluation Board Layout
Latest EXAR manuals
Exar PCIe-400i Series 4-Port RS-422/485 PCI Express Serial Card User Manual
User Manual 18 pages · 1018 KB · ENThe Exar PCIe-400i Series manual details specifications, pin‑out, hardware settings, wiring and driver installation for the 4‑port RS‑422/485 PCI Express…
Exar PCIe-800i RS-422/485 Serial Card User Manual
User Manual 24 pages · 1.4 MB · ENThe Exar PCIe-800i RS-422/485 Serial Card manual provides specifications, pin‑outs, wiring, configuration, driver installation and troubleshooting.
Exar XRP6141 Evaluation Board User Manual
User Manual 7 pages · 1.5 MB · ENUser manual for the Exar XRP6141 evaluation board, covering description, pinout, power‑up, schematics, BOM and layout.
EXAR XR-T56L85 DATA SHEET
XR-T56L85 is a low power PCM line interface chip from EXAR. It supports 2.048 Mbps in both TX and RX directions with a single +5V supply.
EXAR XRD4460A/XRD44L60A DATA SHEET
The document mainly describes the features and characteristics of the products.
EXAR MP7682 DATA SHEET
The 03-4500E-10 is a high power single-ended push-pull analog output audio power amplifier designed for home theater, professional audio systems and other applications requiring high power and low distortion audio amplification. The product uses high-performance operational amplifiers and features low distortion, high efficiency and high output power.
EXAR XRT8020 handbook
The XRT8020 is a monolithic analog phase locked loop that provides a high frequency LVDS clock output, using a low frequency crystal or reference clock. It is designed for SONET/SDH and other low jitter applications.
EXAR XR-2206 handbook
The XR-2206 is a monolithic function generator integrated circuit capable of producing high quality sine, square, triangle, ramp, and pulse waveforms of high-stability and accuracy. The output waveforms can be both amplitude and frequency modulated by an external voltage. Frequency of operation can be selected externally over a range of 0.01Hz to more than 1MHz. The circuit is ideally suited for communications, instrumentation, and function generator applications requiring sinusoidal tone, AM, FM, or FSK generation. It has a typical drift specification of 20ppm/°C.
EXAR XR16C854 handbook
This document introduces the features and characteristics of a certain brand and model product. The product adopts advanced design and has high performance. It is the leader in the market of similar products.
EXAR MP7684A handbook
EXAR Voltage-Controlled Oscillator XR-2207 Manual
The XR-2207 is a monolithic voltage-controlled oscillator (VCO) integrated circuit featuring excellent frequency stability and a wide tuning range. It provides simultaneous triangle and squarewave outputs over a frequency range of 0.01Hz to 1MHz. It is ideally suited for FM, FSK, and sweep or tone generation, as well as for phase-locked loop applications.
EXAR ST16C554/554D/68C554 Data Sheet
The product is Huawei MateX2 foldable screen phone, which uses the Kirin 9000E chip, built-in 8GB+256GB/512GB storage, equipped with 6.45-inch outer screen and 7.6-inch inner screen, supports 120Hz refresh rate, and is equipped with a 5000mAh battery, supports 66W wired fast charging and 55W wireless fast charging
EXAR MP7524A DATA SHEET
This document introduces the 03-06-53-9921 low-cost, high-precision digital transformer, which uses the 026 single-chip microcomputer and LDO power supply, and has the characteristics of low power consumption, high precision and low cost.
EXAR SPX5205 LOW-NOISE LDO VOLTAGE REGULATOR handbook
This document describes the features and characteristics of the Exar Corporation's SPX5205 150mA low-noise LDO voltage regulator, including low noise output, 1% initial accuracy, very low quiescent current, low dropout voltage, current and thermal limiting, reverse-battery protection, and wide range of fixed output voltages. The SPX5205 is suitable for battery-powered applications and areas where power conservation is desired.
EXAR SP6887 DATA SHEET
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in EXAR manuals
How do I enable automatic direction control for RS‑485?
Open Exar’s Communications Port properties in Device Manager, check the “RS‑485” box, and click OK.
From: Exar PCIe-400i Series 4-Port RS-422/485 PCI Express Serial Card User Manual
How can I enable the 120 Ω termination resistors on the TX lines?
Short pins 1 and 3 of the corresponding JP header (JP1‑JP8) to enable the TX termination resistors.
What is the rated output current of the evaluation board?
The rated output current is 25 A.
How do I set the converter to Forced CCM mode?
Set jumper J1 to the CCM position; the converter will operate in Forced CCM at VIN = 12 V.