EPM1270F256I5

Complex Programmable Logic Devices Overview

The Altera EPM1270F256I5 is a Complex Programmable Logic Device (CPLD) belonging to the MAX II family. It features 1270 logic elements and 980 macrocells within a 256-pin FineLine BGA package. The device supports system-in-programmability via JTAG and operates with internal supply voltages of 2.5V or 3.3V. Key electrical specifications include a maximum propagation delay of 6.2 ns, a maximum operating frequency of 304 MHz, and an industrial temperature range of -40°C to +100°C. It utilizes non-volatile Flash memory for configuration storage.

Complex Programmable Logic Devices Feature Summary

• Contains 1270 logic elements organized into 127 Logic Array Blocks (LABs).
• Supports In-System Programming (ISP) using IEEE 1149.1 JTAG interface.
• Operates at maximum frequency of 304 MHz with 6.2 ns max propagation delay.
• Industrial temperature rating from -40°C to +100°C junction temperature.

Complex Programmable Logic Devices Applications

• Interface bridging between different voltage domains.
• Address/data buffering in embedded systems.
• State machine implementation for control logic.
• Replacement for legacy PAL/GAL devices.

Complex Programmable Logic Devices Procurement Notes

Verify RoHS compliance status as sources indicate conflicting information regarding lead content. Confirm the specific suffix 'I5' corresponds to the required industrial temperature grade (-40°C to +100°C) and voltage options (2.5V/3.3V). Check for Product Change Notifications (PCN) related to labeling or manufacturing site changes before finalizing orders.

Complex Programmable Logic Devices Selection Notes

Select this component when 980 macrocells are sufficient for the design complexity. Ensure the PCB layout accommodates the 17x17 mm 256-FBGA footprint. Compare against EPM1270F256C5 if commercial temperature range (0°C to 70°C) is acceptable, as it may offer different availability. Verify that the design does not exceed the 212 available I/O pins.

Complex Programmable Logic Devices Part Context

This part is part of the Intel (formerly Altera) MAX II family, designed for low-cost, low-power applications requiring non-volatile configuration. It serves as a drop-in replacement for many complex PALs and GALs. The 'F256' indicates the 256-pin FBGA package, while 'I5' denotes the industrial temperature range and speed grade.

Complex Programmable Logic Devices Replacement Considerations

EPM1270F256I5N is listed as a direct substitute. For lower temperature requirements, EPM1270F256C5 is functionally similar but rated for 0°C to 70°C. Cross-family upgrades may require Quartus software re-compilation.