The XR17D152 (dual) and XR17D154 (quad) and XR17D158 (octal) are industry first UARTs to support both 3.3V and 5V Universal PCI Bus signaling designs. A PCI Bus add-in card designed using one of the Universal PCI UART means the card will operate virtually in any PC system, old with 5V and new at 3.3V. PC Add-in card manufacturers can simply build and ship the Universal PCI cards to the distribution channel or customers without having to concern with slot's VIO voltage compatibility.
This multi-channel Universal PCI UART product family is highly integrated and well suited for Universal PCI add-in card solutions. In addition, they support high bandwidth requirements found in communication devices of Point-of-Sale (POS) systems, industrial machineries, computer servers and telecom network management solutions for systems based on PCI Bus, CompactPCI, PMC, VME and PC/104Plus industry standards.
These Universal PCI UART devices build on the earlier successful introduction of the 5V devices (XR17C152/154/158, 2/4/8 channels), and 3.3V (XR17L152/154) and will deliver the same product innovations that have been a hallmark of Exar's offerings including: minimized design cycles, increased performance, and acceleration of time-to-market.
Features
- Industry First Universal Board PCI Bus UART
- Direct 3.3V and 5V PCI Bus Connection
- PCI Bus Target revision 2.3 Signaling Compliant
- 32-bit Wide Data Read/Write Operation for Higher Data Throughput
- Data Burst Operation for Faster Data Loading/Unloading
- Global Interrupt Signal Register Increases Driver Efficiency
- Each UART has 64-byte TX and RX FIFOs
- Programmable TX and RX FIFO Trigger Level and FIFO Level Counters
- Automatic RTS/CTS or DTR/DSR Hardware Flow Control
- Automatic RS485 Direction Control Output with Selectable turn-around delay
- Up to 6.125 MBps Data Rate
- Pb-Free, RoHS Compliant Versions Offered
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