End-of-life hot — last-time buy window is open
The EPM1270T144C4 carries an end-of-life hot status. That means the manufacturer has announced discontinuation and the last-time-buy period is active. Procurement should secure a lifetime-buy quantity or plan a migration to a replacement device now.
In-system programmable — field updates without a programmer
In-system programmable via JTAG, so firmware updates or logic revisions can be applied after the board is assembled. No socket or external programmer needed — just the JTAG header on the board. Useful for last-minute ECOs or field upgrades.
