LS7267-S

Counter Dividers Overview

The LS7267-S is a monolithic CMOS dual-axis quadrature counter manufactured by LSI/CSI. It integrates two independent 24-bit counters designed to support X and Y axes in motion control applications. The device features an 8-bit 3-state data I/O bus for register access and communication. It operates within a supply voltage range of 3 V to 5.5 V and supports positive edge triggering with a count rate up to 50 MHz. The component is housed in a 28-pin SOIC package and functions within an operating temperature range of -25°C to 80°C.

Counter Dividers Feature Summary

• Dual 24-bit counters for simultaneous X and Y axis interface
• 8-bit 3-state data I/O bus for register access
• TTL/CMOS compatible I/Os
• Programmable quadrature and multi-mode operation

Counter Dividers Applications

• Motion control systems requiring dual-axis position tracking
• Incremental encoder interfaces
• Positioning systems utilizing quadrature signals

Counter Dividers Procurement Notes

Verify the specific suffix 'S' indicates the SOIC package variant when ordering. Confirm the manufacturer is LSI Computer Systems, Inc. Ensure compatibility with 3V to 5.5V logic levels. Check datasheet for pinout alignment with 28-pin SOIC footprint requirements.

Counter Dividers Selection Notes

Select this component for applications requiring dual-axis quadrature decoding without external microcontroller intervention. Suitable for systems needing direct encoder interface with programmable counters. Verify that the 50 MHz count rate meets system frequency requirements.

Counter Dividers Part Context

The LS7267 series includes variants such as LS7267 (DIP) and LS7267-TS (TSSOP). The LS7267-S specifically denotes the Small Outline Integrated Circuit package version. All variants share the same core functionality as a 24-bit dual-axis quadrature counter.

Counter Dividers Replacement Considerations

LS7267 (DIP package), LS7267-TS (TSSOP package).