LSI Computer Systems LS7566
The LS7566 consists of four identical modules of 24-bit programmable counters with direct interface to incremental encoders. The modules can be configured to operate as quadratureclock counters or non-quadrature up/down counters. The mode configuration is made through two 8-bit read/write addressable control registers, MDR0 and MDR1.| Part No. | LS7566 |
|---|---|
| Datasheet | LS7566 Download |
| Manufacturer |  LSI Computer Systems |
| Description | 24-BIT FOUR-AXES QUADRATURE COUNTER |
| Buy | Stock & Price |
FEATURES
:● Read/write registers for count and I/O modes. Count modes include: Non-quadrature (Up/Down), Quadrature (x1, x2, x4), Free-run, Non-recycle, Modulo-n and Range limit
● Separate mode-control registers for each axis
● Interrupt output and interrupt mask register.
● 40 MHz count frequency, 5V 20 MHz count frequency, 3V
● Sets of 24-bit counters, preset registers, comparators and output latches and 8-bit status registers for each axis
● Digital filtering of the input quadrature clocks for noise immunity.
● 3-state Octal I/O bus
● 3V to 5.5V operating voltage range
● LS7566-TS (TSSOP) -See Figure 1GENERAL
DESCRIPTION
: In both quadrature and non-quadrature modes, the modules can be further configured into free-running, non-recycle, modulo-n and range-limit count modes. Data can be ported to a 24-bit preset register PR, organized in directly addressable (write-only) byte0 [PR0] byte1 [PR1] and byte2 [PR2] segments. PR can be transferred to the 24-bit counter CNTR either by instruction to MDR1 or by hardware input control.
