ATV2500BQL-25KI

Complex Programmable Logic Devices Overview

The ATV2500BQL-25KI is a high-density, UV-erasable programmable logic device (PLD) manufactured by Microchip Technology. It features a fully connected logic array with 416 product terms and 24 flexible macrocells containing 48 flip-flops. The component operates at a maximum clock frequency of 31 MHz with a typical pin-to-pin delay of 25 ns. It utilizes a 5V power supply and supports D- or T-type flip-flop configurations. The device is housed in a 44-lead Plastic J-leaded Chip Carrier (PLCC) package and is rated for an industrial operating temperature range of -40°C to +85°C.

Complex Programmable Logic Devices Feature Summary

• High-density architecture with 416 product terms and 24 macrocells providing 48 flip-flops.
• Flexible output macrocells allowing selectable D- or T-type registers and combinable sum terms.
• UV-erasable EPROM technology ensuring reprogrammability and high noise immunity.
• Low standby power consumption of 2 mA to 5 mA depending on the temperature grade.

Complex Programmable Logic Devices Applications

• Complex digital logic replacement in industrial control systems.
• State machine implementation requiring independent clocking per flip-flop.
• Bi-directional I/O buffer designs utilizing dedicated input paths and feedback terms.

Complex Programmable Logic Devices Procurement Notes

Verify the package type corresponds to the 'J' suffix, indicating a 44-lead PLCC. Confirm the 'I' suffix matches the required industrial temperature range of -40°C to +85°C. Ensure the programming equipment supports UV erasure via the windowed package variant if applicable, though this specific part uses PLCC which may require specific handling for UV access if windowed, or standard electrical erasure if EEPROM (note: datasheet specifies UV EPROM process, but PLCC packages typically lack windows; verify physical window presence for erasure). Check for backward compatibility requirements with ATV2500H/L software tools.

Complex Programmable Logic Devices Selection Notes

Select this model when a high gate utilization factor (>80%) is required within a 44-lead surface mount footprint. Choose the 25 speed grade for applications needing up to 31 MHz external feedback performance. Consider the BQL variant for lower standby current (2-5 mA) compared to the standard BQ variant (30-85 mA). Ensure the design can accommodate the 44-pin PLCC footprint and that UV erasure capabilities are not needed post-installation if the package lacks a window.

Complex Programmable Logic Devices Part Context

The ATV2500BQL series represents the low-power version of the ATV2500B family, offering significantly reduced standby current compared to the standard BQ and B variants. It maintains full functional compatibility with the ATV2500H and ATV2500L devices, allowing for direct software reuse and potential hardware upgrades. The BQL designation specifically indicates the use of CMOS EPROM technology optimized for power-sensitive applications while retaining high-speed performance.

Complex Programmable Logic Devices Replacement Considerations

The ATV2500BQL-25KI is functionally compatible with the ATV2500H and ATV2500L families. For direct pin-compatible replacements in existing designs, consider the ATV2500BQL-25JI or ATV2500BQL-25KC depending on the required temperature range and package availability. Note that the ATV2500BQL requires additional GND connections when used as a drop-in replacement for ATV2500H/L in some configurations.