Obsolete — last-time-buy sourcing through independent channels
Texas Instruments has marked the LM3S1960-EQC50-A2 as obsolete. For existing BOM lines, this part is sourced through independent distribution against an RFQ.
50MHz Cortex-M3 with 256KB flash and 64KB RAM
The core runs at 50MHz, which is the maximum clock for this Stellaris ARM Cortex-M3 device. Program memory is 256KB of on-chip flash, with 64KB of SRAM — enough for moderate control applications without external memory. Operating temperature spans -40°C to 105°C, making it suitable for industrial enclosures or outdoor equipment where ambient heat or cold is a factor.
100-LQFP package and board-fit considerations
Housed in a 100-pin LQFP with a 14x14 mm body (supplier device package 100-LQFP). The 0.50 mm pitch demands a controlled reflow profile — check the MSL rating before the oven run to avoid popcorning. Supply voltage range is 2.25V to 2.75V, so a 2.5V rail is the nominal fit.
On-chip peripherals include brown-out detect, POR, PWM, and a watchdog timer.