C515C is a 8-bit CMOS microcontroller launched by Siemens. The microcontroller uses the 51 series core, which has the characteristics of high performance, low power consumption and low cost.
The C515C is an enhanced 8‑bit CMOS microcontroller that adds a full CAN interface, an SPI‑compatible synchronous serial interface, extended power‑save provisions, additional on‑chip RAM, 64 KB of program memory, two new external interrupts, and OTP options. It operates with a maximum external clock of 10 MHz and achieves a 600 ns instruction cycle at 6 MHz.
The manual covers pin configuration and definitions, memory organization (program, data, XRAM), external bus interface, on‑chip peripheral components such as timers, counters, CAN and SSC interfaces, fail‑safe mechanisms like the watchdog timer, power‑saving modes, OTP memory programming, and full device specifications including electrical characteristics and package information.