3 ms·
Quick glance at Microchip shows, all in quantities of 5k units, $1.02-$2.28 per unit for 1Mb ROM, $0.36 for 1Mb flash, (if aiming for $1) $0.96-$1.10 per unit f
by nickpsecurity 8y ago
Quick glance at Microchip shows, all in quantities of 5k units, $1.02-$2.28 per unit for 1Mb ROM, $0.36 for 1Mb flash, (if aiming for $1) $0.96-$1.10 per unit for 16Mb flash, and highest is 64Mbit at $1.95-$2.18 per unit. Memory is cheap if your product is popular or can share a big order with someone(s) else.
Since not a hardware guy, I don't know if PCB design or packaging cost goes up significantly for adding a 1Mb ROM or flash. I doubt it, though, given these kind of memory chips get used in dirt-cheap boards. Albeit with lower amounts of storage usually given those board try to minimize costs.
- mattthebaker 8y agoWhat do you do with 8MB when the OS is 512MB+? Adding NOR Flash is normally pretty simple -- No bad blocks and a standard SPI interfaces most embedded devices have controllers for. The high end controllers can typically map NOR flash directly into the system address space.
- nickpsecurity 8y agoI was thinking it might be good for RTOS alternatives, a tiny Linux, or (relevant here) something to deal with SDcard problem. Tell users about it with suggested action. And you said 8MB. I just named off a range at different price points to help answer parent's question. I dont know embedded enough to assess what's needed here. Thanks for tip about NOR flash.