PIC16C57-10/SS
PIC16C57-10/SS - 10MHz 8-bit OTP MCU, 3KB | Microchip
The Microchip PIC16C57-10/SS is an 8-bit, fully static, EPROM/ROM-based CMOS microcontroller from the PIC® 16C family, packaged in a 28-pin SSOP (5.30 mm body width) and rated for 10 MHz maximum clock frequency. According to the Microchip PIC16C57 datasheet, the device integrates 3 KB (2K x 12) of OTP program memory, 72 bytes of data RAM, 20 digital I/O pins, and a two-level deep hardware stack, with a 12-bit wide instruction word and 8-bit data path that yields a typical 2:1 code compression over comparable 8-bit MCUs.
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data RAM, and peripherals such as timers, I/O ports, and interrupt logic. Within the broader hierarchy, the PIC16C57 belongs to the 8-bit MCU category -> microcontroller -> embedded processor -> semiconductor IC. The "PIC16C" prefix identifies Microchip's mid-range, OTP/EPROM-programmable family using a RISC Harvard architecture that executes one instruction per internal clock cycle (except branches), giving deterministic timing suitable for cost-sensitive real-time control.
Key features of the PIC16C57-10/SS include a 10 MHz maximum oscillator frequency, an 8-bit real-time counter/timer (TMR0) with programmable prescaler, direct/indirect/relative addressing modes, seven or eight special function hardware registers, a watchdog timer, power-on reset, and a wide 2.5 V to 6.25 V (typical 5 V) operating voltage range. The CMOS process yields very low power consumption, enabling battery-backed designs. Commercial temperature grade (0 °C to +70 °C) is standard for the /SS SSOP variant.
Architecturally, the PIC16C57 uses a 12-bit instruction word fetched from program memory while the 8-bit data path reads/writes the file register map. The 2-level hardware stack supports subroutine nesting without software stack management. I/O ports are bidirectional with programmable weak pull-ups, and the device operates fully statically so the clock can be stopped without losing state - useful for low-power standby.
Typical applications include appliance controls, sensor interface boards, simple motor drivers, hobby and educational platforms, automotive body electronics (non-safety), security keypads, and remote-control transmitters. The OTP memory is well suited to fixed-code production runs of moderate volume where in-field reprogramming is not required.
A practical design note: the PIC16C57's 10 MHz oscillator limit must be respected when using HS or XT crystal modes; for lower-frequency designs (e.g., 32 kHz timing), the LP mode reduces supply current. Brown-out and watchdog behaviour should be configured in the configuration word prior to programming the OTP array, as these fuses cannot be changed after code commit.
This page synthesizes distributor pricing, drop-in alternative listings, and practical design notes that supplement the manufacturer datasheet, helping engineers quickly select and source PIC16C57-10/SS in production.
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