PIC16C710-04I/SS
PIC16C710-04I/SS - 8-Bit 4MHz OTP MCU with 8-bit ADC | Microchip
The Microchip Technology PIC16C710-04I/SS is an 8-bit CMOS OTP (One-Time-Programmable) RISC microcontroller in a 20-pin SSOP package, running at 4MHz with 200ns instruction execution. It integrates 896 bytes of program memory (512 x 14 words), 36 bytes of RAM, and a 4-channel 8-bit Analog-to-Digital Converter, making it suited for entry-level mixed-signal applications in automotive, industrial, appliance, and consumer markets. The industrial temperature grade (-40C to +85C) suffix "/I" qualifies the part for harsh-environment deployments.
An MCU (Microcontroller Unit) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), working RAM, and peripheral interfaces such as ADC, timers, and I/O. The PIC16C710 belongs to Microchip's mid-range PIC16CXX family, employing a RISC (Reduced Instruction Set Computer) architecture with only 35 single-word instructions, eight-level deep hardware stack, and multiple internal/external interrupt sources. This lineage is upwards-compatible with the PIC16C5X and PIC12CXXX baselines, easing legacy firmware migration.
Key features of the PIC16C710-04I/SS include 13 digital I/O pins, a Watchdog Timer with on-chip RC oscillator for reliable operation, power-saving Sleep mode, in-circuit serial programming capability via two pins, and an 8-bit Timer0/1 with programmable prescaler. The on-chip 4-channel 8-bit ADC delivers 20us conversion time, sufficient for low-speed sensor acquisition such as temperature, light, or potentiometric feedback in closed-loop control. Brown-out Reset circuitry protects against low-voltage corruption of program execution.
The CMOS fully-static design eliminates the need for a minimum clock rate, allowing the device to operate from DC up to its 4MHz maximum. Program memory is OTP, meaning each unit can be programmed exactly once - appropriate for high-volume production but unsuitable for development cycles that require reprogramming. The SSOP-20 (5.3 mm body width, 0.65 mm pitch) footprint offers a compact outline while remaining hand-solderable for prototyping.
Typical applications include white-goods and HVAC control boards, automotive sensor interfaces (battery monitors, lighting controls), battery chargers, small motor controllers, and consumer products such as coffee machines, washing machines, and security keypads. The integrated ADC enables direct connection to analog sensors without external signal conditioning.
Designers should pair the PIC16C710-04I/SS with a decoupling 100nF ceramic capacitor on VDD placed within 5 mm of the pin, follow Microchip's recommended oscillator layout, and reserve the MCLR pin for either a reset switch or proper pull-up. For prototype work, consider the pin-compatible PIC16F710 Flash variant to enable firmware iteration.
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