XR16L788


High-Performance 3.3V Octal UART

Features

  • Simultaneous UART channels initialization
  • Transmit and receive FIFO level counters
  • Sleep-mode with wake-up indication
  • Automatic Xon/Xoff software flow control
  • Data rate up to 6.25 Mbps
  • Infrared (IrDA 1.0) data encoder/decoder
  • Programmable Tx and Rx FIFO trigger levels
  • Automatic RTS/CTS or DTR/DSR flow control
  • Pb-Free, RoHS Compliant Versions Offered
Applications

  • Network management
  • Factory automation and process control
  • Point-of-sale systems
  • Ethernet network to serial ports
  • Remote access servers
Description

Exar's XR16L788 (formerly numbered XR16L758) is a highly integrated device designed for communications systems with high bandwidth requirements in remote access servers, hubs and routers, factory automation and process control, and Point-of-Sale (POS) systems. At 3.3V (5V+ tolerant), the device is first in a new generation of devices that leverages Exar's strong serial communications design expertise, and the strong market acceptance of this product series.

Joining a robust product portfolio, the XR16L788 has several innovative features including a global interrupt output pin with global interrupt source registers that provide complete status on all eight UART channels which speeds up interrupt parsing. The global interrupt source registers are designed to make the software device drivers more efficient thus reduce CPU's bandwidth requirement in multi-channel systems.

In addition, the device has individual UART channel control, soft-reset, simultaneous registers initialization, RTS/CTS or DTR/DSR hardware flow control with 16 selectable hysteresis, software (Xon/Xoff) flow control with detection indicators and RS-485 half-duplex direction control output with programmable turn-around delay. The turn-around delay of 0 to 15 bit-time is absolutely required for compensating signal propagation delay in long cabling networks. The 8-bit data bus facility supports Intel or Motorola based system designs. The device has 64-byte transmit and receive FIFOs (first-in, first-out) as well as FIFO level counters, programmable TX and RX FIFO trigger levels, serial data rate of up to 6.25 Mbps, and Infrared (IrDA 1.0) data encoder/decoder capabilities.

For UART technical support or to obtain an IBIS model for this product, please email Exar's UART Technical Support group.

Part NumberPkg CodeRoHSMin
Temp.
(°C)
Max
Temp.
(°C)
StatusBuy NowOrder Samples
XR16L788CQ-FQFP100QFP100070Active
XR16L788CQTR-FQFP100QFP100070Active
XR16L788IQ-FQFP100QFP100-4085Active
XR16L788IQTR-FQFP100QFP100-4085Active
XR16L788CQQFP100070EOL
XR16L788IQQFP100-4085EOL

Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs. 
Specifications
CPU InterfaceIntel or Motorola
CH8
Max Data Rate @ 5/3.3/2.5/1.8V (Mbps)6.25/4/na/na
Tx/Rx FIFO (Bytes)64/64
Tx/Rx FIFO CtrsYes
Tx/Rx FIFO INT TrigProgram/ Program
Auto RTS/CTSYes
IrDa SupYes
5V Tol InputsYes
Sup V2.97-5.5
PkgsQFP-100
Data Rate @ 5/3.3/2.5V6.2/4.0/na @8X