XR88C92CJTR-F MaxLinear

XR88C92/192 DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER August 2005 DESCRIPTION The XR88C92/192 is a Dual Universal Asynchronous Receiver and Transmitter with 8 (XR88C92) / 16 (XR88C192) bytes transmit and receive FIFO. The XR88C92/192 is a pin and functional replacement for the SC26C92 and an improved version of the Philips SCC2692 UART with faster data access and other additional features. The operating speed of the receiver and transmitter can be selected independently from a table of eighteen fixed baud rates, a 16X clock derived from a programmable counter/timer, or an external 1X or 16X clock. The baud rate generator and counter/timer can operate directly from a crystal or from external clock input. The XR88C92/192 provides a power- down mode in which the oscillator is stopped but the register contents are retained. The XR88C92/192 is fabricated in an advanced CMOS process to achieve low power and high speed requirements. FEATURES PLCC Package Added features in devices with top marking ofD2 and newer: 5 volt tolerant inputs Pin to pin and functional compatible to SC26C92 Enhanced Multidrop mode operation with separate storage for address and data tags (9th bit) 7 39 -CS A3 8 Bytes transmit/receive FIFO (XR88C92) IP0 8 38 RESET 16 Bytes transmit/receive FIFO (XR88C192) -IOW 9 37 XTAL2 Standard baud rates from 50bps to 230.4kbps -IOR 10 36 XTAL1 Non-standard baud rate of up to 1Mbps Transmit and Receive trigger levels RXB 11 35 RXA Watch dog timer XR88C92 N.C. 12 34 N.C. XR88C192 Programmable clock source for receiver and trans- TXB 13 33 TXA mitter of each channel OP1 14 32 OP0 Single interrupt output OP3 15 31 OP2 7 Multipurpose inputs, 8 Multipurpose outputs OP5 16 30 OP4 2.97 to 5.5 volt operation Programmable character lengths (5, 6, 7, 8) OP7 17 29 OP6 Parity, framing, and over run error detection Programmable 16-bit timer/counter On-chip crystal oscillator Power down mode ORDERING INFORMATION Part number Package Operating temperature Device Status XR88C92CJ 44-Lead PLCC 0 C to + 70 C Active XR88C92CV 44-Lead LQFP 0 C to + 70 C Active XR88C92IJ 44-Lead PLCC -40 C to + 85 C Active XR88C92IV 44-Lead LQFP -40 C to + 85 C Active XR88C192CJ 44-Lead PLCC 0 C to + 70 C Active XR88C192CV 44-Lead LQFP 0 C to + 70 C Active XR88C192IJ 44-Lead PLCC -40 C to + 85 C Active XR88C192IV 44-Lead LQFP -40 C to + 85 C Active Rev. 1.33 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 (510) 668-7000 FAX (510) 668-7017 18 6 A2 D1 D3 19 5 IP1 D5 20 4 A1 D7 21 3 IP3 GND 22 2 A0 23 1 N.C. N.C. 24 44 -INT VCC D6 25 43 IP4 D4 26 42 IP5 D2 27 41 IP6 D0 28 40 IP2XR88C92/192 Package Description 44 Pin LQFP Package A3 1 33 -CS IP0 2 32 RESET -IOW 3 31 XTAL2 XTAL1 -IOR 4 30 RXB 5 29 RXA XR88C92 TXB 6 28 TXA XR88C192 OP1 7 27 OP0 OP3 8 26 OP2 9 25 OP4 OP5 OP7 10 24 OP6 N.C. 11 23 N.C. Rev. 1.33 2 D1 12 44 A2 13 43 IP1 D3 42 D5 14 A1 15 41 IP3 D7 40 A0 GND 16 GND 17 39 VCC 18 38 VCC -INT D6 19 37 IP4 20 36 IP5 D4 35 IP6 D2 21 D0 22 34 IP2