ATF750CL-15SU

Overview

The ATF750CL-15SU is a low-power, high-speed Complex Programmable Logic Device (CPLD) from the ATF750C(L) family. It features 750 usable gates with 10 macrocells and 10 I/O pins in a 24-lead SOIC package. Operating at a maximum supply voltage of 5V ±5%, it delivers a maximum pin-to-pin propagation delay of 15 ns. The device supports industrial temperature ranges (-40°C to +85°C) and includes programmable pin-keeper circuits to prevent floating inputs.

Feature Summary

• Low-power architecture with standby current as low as 2 mA in industrial range
• 10 Macrocells with individually configurable D- or T-type flip-flops
• Programmable pin-keeper circuits eliminate need for external pull-up resistors
• Backward compatible with ATV750B/BL and ATV750/L architectures

Applications

• Complex state machine implementation
• High-speed logic replacement for legacy 22V10 devices
• Battery-powered systems requiring low standby current
• Industrial control logic with wide temperature tolerance

Procurement Notes

Verify that the ordering suffix 'SU' corresponds to the 24-lead Plastic Gull Wing Small Outline (SOIC) package and Industrial temperature range (-40°C to +85°C). Confirm RoHS compliance status if lead-free requirements are mandatory, as green package options were introduced in later revisions. Ensure design tools support the specific compiler mode for pin-keeper configuration.

Selection Notes

Select this part when system power consumption is critical but speed requirements exceed standard commercial CPLDs. The -15 speed grade offers 15 ns delay, suitable for moderate-frequency applications. Compare against ATF750C-15SU if lower power is not required, or ATF750CL-10SU if faster switching speeds are needed within the industrial temperature range.

Part Context

This component belongs to the ATF750C(L) series, which provides enhanced logic flexibility over previous generations. The 'CL' designation specifically indicates the low-power variant optimized for reduced standby current while maintaining high-speed performance. It serves as a direct upgrade path for designs previously using Atmel's ATV750 series.

Replacement Considerations

Direct functional replacements include the ATF750C-15SU for standard power applications. For backward compatibility with older designs, the ATF750C can be configured via software to mimic ATV750 behavior. Verify pinout compatibility, particularly regarding unused pins and power supply connections.