XR16C850 Datasheet PDF | Exar Corporation

Exar Corporation XR16C850

The XR16C850*1 (850) is a universal asynchronous receiver and transmitter (UART) and is pin compatible with the ST16C550,ST16C650A, and TI’s TL16C750 UART. The 850 is an enhanced UART with 128 byte FIFOs, automatic hardware/software flow control, and data rates up to 1.5Mbps. It includes transmit/receive FIFO counters to increase data loading and unloading throughput.

Part No.	XR16C850
Datasheet	XR16C850 Download
Manufacturer	Exar Corporation
Description	UART with 128-byte FIFOs FIFO Counters and Half-duplex Control
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GENERAL DESCRIPTION

Onboard status registers provide error indications and operational status. Modem interface control is included and can be optionally configured to operate with the Infrared (IrDA) encoder/decoder. Internal loopback allows onboard diagnostics. The 850 is available in 40-pin PDIP, 44-pin PLCC, 48-pin TQFP, and 52-pin QFP packages. The 44, 48, and 52 pin versions provide both the standard (STD) mode or PC mode. The STD mode is compatible with the ST16C450, ST16C550, ST16C650A and TL16C750 while the PC mode supports standard PC COM port connections. The 40 PDIP pin package does not offer the PC mode. D4 D3 PLCC Package -DSR 41 -CTS 40 39 38 37 36 35 VCC N.C. -CD 42 -RI 43 D2 D1 D0 D5 D6 D7 RCLK RX N.C. TX CS0 CS1 -CS2 -BAUDOUT 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 44 6 5 4 3 2 1 RESET -OP1 -DTR -RTS -OP2 N.C. INT -RXRDY A0 A1 A2 XR16C850CJ "STD" MODE CONNECTION 34 33 32 31 30 29 IOW GND IOR -DDIS -DSR 41 -TXRDY XTAL1 XTAL2 -IOW -IOR N.C. 44 43 4...