LS7366R

www.DataSheet4U.com UL ® LSI/CSI LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 LS7366R (631) 271-0400 FAX (631) 271-0405 May 2006 PIN ASSIGNMENT TOP VIEW LSI A3800 32-BIT QUADRATURE COUNTER WITH SERIAL INTERFACE GENERAL FEATURES: Operating voltage: 3V to 5.5V (VDD - VSS) 5V count frequency: 40MHz 3V count frequency: 20MHz 32-bit counter (CNTR). 32-bit data register (DTR) and comparator. 32-bit output register (OTR). Two 8-bit mode registers (MDR0, MDR1) for programmable functional modes. 8-bit instruction register (IR). 8-bit status register (STR). Latched Interrupt output on Carry or Borrow or Compare or Index. Index driven counter load, output register load or counter reset. Internal quadrature clock decoder and filter. x1, x2 or x4 mode of quadrature counting. Non-quadrature up/down counting. Modulo-N, Non-recycle, Range-limit or Free-running modes of counting 8-bit, 16-bit, 24-bit and 32-bit programmable configuration synchronous (SPI) serial interface LS7366R (DIP), LS7366R-S (SOIC), LS7366R-TS (TSSOP) - See Figure 1 SPI/MICROWIRE (Serial Peripheral Interface): Standard 4-wire connection: MOSI, MISO, SS/ and SCK. Slave mode only. GENERAL DESCRIPTION: LS7366R is a 32-bit CMOS counter, with direct interface for quadrature clocks from incremental encoders. It also interfaces with the index signals from incremental encoders to perform variety of marker functions. For communications with microprocessors or mic...