980 macrocells, 6.2 ns — mid-density CPLD for glue-logic consolidation
The Intel EPM1270F256C5N is a MAX II family CPLD with 980 macrocells and 1270 logic elements — enough to absorb multiple 74-series logic functions, address decoders, and state machines into a single programmable device. Pin-to-pin propagation delay (tpd1) is 6.2 ns max, which sets the ceiling for combinatorial path speed — fast enough for most bus-interface and control applications running at 100+ MHz.
Active production — no obsolescence risk on this BOM line
For a procurement review, this means the part is a safe drop-in for current builds without a last-time-buy deadline.
Dual-voltage supply and commercial temperature range
Core runs at 2.5 V while the I/O banks operate at 3.3 V — a common split that lets the CPLD interface directly with 3.3 V peripherals without external level shifters. The 256-FBGA (17x17 mm) footprint requires a multi-layer PCB for fan-out — the 0.8 mm ball pitch is manageable with standard 4-layer stack-ups.
In-system programmable via JTAG — no socket needed
The device is in-system programmable through the JTAG interface, so firmware updates and field reconfigurations do not require a separate programmer or removal from the board.