S912XDT256F1CAA
S912XDT256F1CAA - 16-Bit 80MHz 256KB MCU | NXP
NXP Semiconductors S912XDT256F1CAA is a 16-bit HCS12X microcontroller operating at 80 MHz, with 256 KB of embedded Flash memory in an 80-pin QFP package measuring 14 x 14 mm. According to the verified NXP product data, it is intended for industrial embedded systems, supports the -40 °C to +85 °C temperature range, and is described as automotive qualified.
A microcontroller is a programmable integrated circuit that combines a processor core, memory, and peripherals in one package. The S12X belongs to the HCS12 family and provides an upgrade path from the HCS12 instruction set through its upward-compatible core, interrupt stacking, programmer model, indexed addressing, and instruction queue. This architecture places it between a simple 8-bit controller and more complex 32-bit microcontrollers while retaining deterministic embedded-control characteristics.
Verified headline features include a 16-bit S12X core, 80 MHz operation, 256 KB of Flash, a 14 x 14 mm 80-QFP package, and the listed connectivity options of CANbus, EBI/EMI, I²C, and SPI. Search snippets also identify 16K x 8 RAM for the device. The combination of local program memory, serial interfaces, and a 16-bit bus-oriented core makes the part suitable for controllers requiring substantial embedded code rather than basic keypad or LED logic.
The S912X designation places this device in NXP's S12X family, while the 256 portion of the ordering code identifies its 256 KB Flash configuration. Its 80 MHz rating provides a 62.5 ns nominal CPU clock period. This calculation does not imply that every peripheral or external interface runs at 80 MHz; bus clocks, timers, serial interfaces, and flash access timing remain subject to the device configuration and manufacturer documentation.
Typical uses include automotive body and chassis electronics, industrial controllers, CAN-connected equipment, data acquisition modules, and embedded systems combining SPI or I²C sensors with external memory. The -40 °C to +85 °C range supports industrial-temperature operation, while the verified automotive-qualified description broadens its potential use in rugged vehicle electronics. Final qualification still depends on the exact ordering variant and application-specific requirements.
For new hardware, verify the complete 80-pin symbol and exposed-power requirements against the manufacturer datasheet before layout. Existing legacy designs should preserve the original S12X memory map, oscillator configuration, watchdog strategy, and pin multiplexing. Since the part is marked End of Life on NXP's product page, long-term production programs should secure supply and qualify any replacement independently rather than assuming functional equivalence from the package number alone.
This page combines verified lifecycle, core, memory, package, interface, temperature, and sourcing information with design-oriented selection guidance. It also distinguishes confirmed facts from missing details instead of inferring pin assignments, electrical limits, pricing, or peripheral specifications that were not supplied in the source data.
RFQ
संपर्क
