PIC16C715-04/SO - 8-bit 4MHz MCU, 3.5KB OTP, 13 I/O | Microchip
MPN: PIC16C715-04/SO β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.78 | $278.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.18 | $2,180.00 |
PIC16C715-04/SO Overview
An 8-bit microcontroller is a programmable logic device that executes instructions fetched from on-chip program memory using an internal CPU core, with a data path width of 8 bits. Microcontrollers sit within the broader hierarchy of: microcontroller -> microprocessor with integrated peripherals -> embedded computing IC -> semiconductor device. The PIC16C715 belongs to the mid-range PIC16C family, which uses a 14-bit instruction word and Harvard architecture (separate program and data buses), enabling deterministic instruction timing that simplifies real-time control firmware development.
Key differentiating features include integrated 8-bit A/D conversion (4 channels) eliminating the need for external ADC ICs in low-resolution analog signal acquisition, hardware Brown-out Reset that prevents code execution at unsafe VDD levels, and a wide commercial operating temperature range suitable for consumer and industrial environments. The OTP program memory allows low-cost, low-volume programming during development or pilot production runs.
Architecturally, the PIC16C715 uses a RISC-style instruction set with most instructions executing in a single instruction cycle (4 clock periods), giving an effective throughput of 1 MIPS at 4 MHz. The integrated ADC, BOR, watchdog timer, and power-on reset reduce external component count and BOM cost for embedded applications.
Typical applications include automotive body controllers, industrial appliance controls, consumer white goods, simple sensor signal conditioning with on-chip ADC, HVAC thermostat fan wiring, and low-cost embedded control modules. The combination of on-chip ADC and small SOIC-18 footprint makes it well suited for space-constrained analog sensing designs.
When designing with this part, ensure the OSC selection bits match the chosen clock source (RC, XT, LP, HS), and allocate sufficient ADC acquisition time (typically >20 us) by adjusting the A/D clock prescaler. OTP memory cannot be re-programmed; consider the Flash-based PIC16F877A or PIC16F88A for in-application reprogrammability. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16C715-04/SO β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16C715-04/SO (same form factor and footprint) β differing in ADC, Operating Temperature, Package, Program Memory Type, Timers.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16C711-04/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16C712-04/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16C715-04I/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16C710-04/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16C71-04/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16C715-04/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16C mid-range RISC |
| Instruction Set Width | 14-bit |
| Maximum Clock Frequency | 4 MHz |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| Data RAM | 128 bytes |
| Data EEPROM | Not present |
| I/O Pins | 13 |
| ADC | 4 channels x 8-bit |
| Timers | Timer0 (8-bit with 8-bit prescaler) |
| Supply Voltage (VDD) | 4.0 V to 5.5 V |
| Brown-out Reset (BOR) | Yes |
| Watchdog Timer | Yes |
| Technology | CMOS |
| Package | 18-pin SOIC (SO) |
| Mounting Type | Surface Mount |
| Operating Temperature | 0C to +70C (commercial grade) |
PIC16C715-04/SO Pin Configuration
| Pin 1 | RA2/AN2 β PORTA bit 2 / Analog input channel 2 |
| Pin 2 | RA3/AN3 β PORTA bit 3 / Analog input channel 3 |
| Pin 3 | RA4/T0CKI β PORTA bit 4 / Timer0 clock input |
| Pin 4 | MCLR β Master Clear (reset) input |
| Pin 5 | VSS β Ground reference |
| Pin 6 | RB0/INT β PORTB bit 0 / External interrupt input |
| Pin 7 | RB1 β PORTB bit 1 |
| Pin 8 | RB2 β PORTB bit 2 |
| Pin 9 | RB3 β PORTB bit 3 |
| Pin 10 | RB4 β PORTB bit 4 |
| Pin 11 | RB5 β PORTB bit 5 |
| Pin 12 | RB6 β PORTB bit 6 |
| Pin 13 | RB7 β PORTB bit 7 |
| Pin 14 | VDD β Positive supply voltage (4.0 V to 5.5 V) |
| Pin 15 | OSC2/CLKOUT β Oscillator crystal output / Clock output |
| Pin 16 | OSC1/CLKIN β Oscillator crystal input / External clock input |
| Pin 17 | RA0/AN0 β PORTA bit 0 / Analog input channel 0 |
| Pin 18 | RA1/AN1 β PORTA bit 1 / Analog input channel 1 |
Typical Applications
PIC16C715-04/SO is suitable for 6 applications: Automotive Body Controllers, Industrial Appliance Controls, Consumer Electronics Remote Sensing, HVAC Thermostat Fan Wiring, Low-Cost Sensor Signal Conditioning, Embedded Control Modules.
Automotive Body Controllers
The PIC16C715-04/SO is well suited for low-end automotive body electronics where its 4-channel 8-bit ADC reads potentiometric sensors (throttle position, fluid level) and its 13 I/O pins drive relays, solenoids, and LED indicators. The integrated Brown-out Reset prevents false code execution during cranking transients, a common automotive reliability concern. With 2K x 14 OTP program memory and 128 bytes RAM, it has sufficient headroom for typical body controller firmware. The 18-SOIC package allows compact PCB integration behind dashboards and door modules. For under-hood -40C to +125C applications, migrate to PIC16C715-04I/SO or AEC-Q100 qualified Flash parts. Pair with Microchip MCP1700 LDO for clean rail regulation.
Recommended
Industrial Appliance Controls
In washing machines, dishwashers, microwave ovens, and HVAC controls, the PIC16C715-04/SO provides the integrated ADC and timer resources needed for temperature sensing, motor speed feedback, and user keypad scanning. Its 8-bit RISC core at 4 MHz delivers 1 MIPS, enough throughput for PID control loops running at 100 Hz update rates. The 13 I/O pins directly drive triac interface optos, seven-segment displays, and buzzer drivers. OTP program memory locks firmware IP for high-volume white goods production. The 18-SOIC footprint simplifies single-sided PCB assembly. Brown-out Reset ensures clean recovery after power-line dropouts common in residential wiring.
Recommended
Consumer Electronics Remote Sensing
Battery-powered remote controls, environmental monitors, and small sensor hubs leverage the PIC16C715-04/SO for its low component count: integrated 4-channel ADC, 128 bytes RAM, and 13 I/O eliminate the need for external ADC ICs or port chips. The CMOS design draws minimal current in sleep mode, extending battery life in portable applications. OTP memory is appropriate for high-volume consumer products where firmware is finalized before tooling. The 18-SOIC package supports automated pick-and-place assembly. The Timer0 with 8-bit prescaler enables precise debounce intervals for mechanical button inputs.
Recommended
HVAC Thermostat Fan Wiring
Thermostat and HVAC control modules use the PIC16C715-04/SO to read temperature setpoint potentiometers via the on-chip 4-channel ADC, drive TRIAC-optocoupler interfaces to fan relays, and debounce mechanical mode switches via Timer0. The 4 MHz clock is sufficient for proportional fan control loops. The 13 I/O handle up to 3 fan speeds, a heat/cool mode relay, and a 7-segment indicator with no external logic. OTP memory locks the climate control algorithm for production. Brown-out Reset handles power glitches during compressor cycling. The 18-SOIC package fits behind wall-mount thermostat bezels.
Recommended
Low-Cost Sensor Signal Conditioning
The PIC16C715-04/SO functions as a stand-alone sensor signal conditioner: its 4-channel 8-bit ADC digitizes analog sensor outputs (thermistors, photocells, strain gauges) and the firmware applies linearization, scaling, and threshold detection before driving indicator LEDs or transmitting results via UART bit-banging on PORTB. The 128 bytes RAM accommodate lookup tables for sensor calibration curves. The 4 MHz clock and 1 MIPS throughput handle real-time signal processing without external DSP. OTP memory locks the calibration coefficients per unit during programming. The 18-SOIC package suits compact sensor transmitter modules.
Recommended
Embedded Control Modules
Universal embedded control modules for hobbyist, educational, and small-OEM use leverage the PIC16C715-04/SO for its breadboard-friendly availability (DIP variants), straightforward PIC16C mid-range instruction set, and integrated peripherals that minimize external glue logic. The 2K x 14 OTP memory accommodates typical control firmware including interrupt handlers, state machines, and basic communication stacks. The 4-channel 8-bit ADC reads analog inputs for robotics, motor control, and sensor prototyping. Watchdog timer and Brown-out Reset provide robustness for unattended installations. PICkit programmer compatibility simplifies development.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C715-04/SO β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C711-04/SO | PIC16C712-04/SO | PIC16C715-04I/SO | PIC16C710-04/SO | PIC16C71-04/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Program Memory | 3.5 KB (2K x 14) OTP | 1.75 KB (1K x 14) OTP | 1.75 KB (1K x 14) OTP | 3.5 KB (2K x 14) OTP | 0.875 KB (0.5K x 14) OTP | 1.75 KB (1K x 14) OTP |
| Maximum Clock | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| ADC | 4-ch x 8-bit | 4-ch x 8-bit | 4-ch x 8-bit | 4-ch x 8-bit | None | None |
| I/O Pins | 13 | 13 | 13 | 13 | 13 | 13 |
| Data RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 64 bytes |
| Temperature Grade | Commercial 0C to +70C | Commercial 0C to +70C | Commercial 0C to +70C | Industrial -40C to +85C | Commercial 0C to +70C | Commercial 0C to +70C |
Key Differentiators
- Integrated 4-channel 8-bit ADC in 18-SOIC footprint (vs PIC16C710-04/SO)
- Largest program memory in PIC16C71X SOIC family (vs PIC16C711-04/SO and PIC16C712-04/SO)
- Commercial 0C to +70C grade variant at lowest cost (vs PIC16C715-04I/SO)
Design Notes
The PIC16C715-04/SO requires a stable 4.0 V to 5.5 V supply. Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 14) with a short ground return to pin 5 (VSS). For battery or noisy industrial supplies, add a 10 uF bulk capacitor at the board power entry. The Brown-out Reset trips near 4.0 V; operation below this threshold is not guaranteed, so a supervisor IC is unnecessary under clean rails but recommended for long-wire sensor applications. Estimated: at 5 V VDD and 4 MHz clock, the device draws approximately 2 mA active and 1 uA sleep.
Route the crystal traces between pins 15 (OSC2) and 16 (OSC1) and the crystal as short as possible, with a ground plane pour underneath to minimize capacitive coupling. Keep digital signal traces (PORTB) away from the analog inputs (RA0-RA3) and consider a guard ring around analog traces if the board handles low-mV sensor signals. Place the MCLR pull-up resistor (typically 10 kohm) close to pin 4 with a short trace to VDD to improve noise immunity. The 18-SOIC package has a 1.27 mm pin pitch - allow 0.2 mm trace/space clearance per IPC-2221.
Do not exceed the absolute maximum VDD of 7.0 V on pin 14 or apply voltage to any pin before VDD is stable. The ADC acquisition time must exceed 20 us; use the A/D clock prescaler (ADCS1:ADCS0 bits) to ensure the A/D clock period is at least 1.6 us. OTP memory cannot be erased - test firmware on a Flash-based PIC16F88A or PIC16F877A first, then port to PIC16C715 only after firmware is finalized. Verify the CONFIG register oscillator selection bits (FOSC1:FOSC0) match the actual crystal or RC network on the board.
Compliance Information
RoHS and REACH status not explicitly stated in provided Verified Web Data; marked unknown. Not AEC-Q100 qualified - PIC16C715-04/SO is commercial 0C to +70C only. Lead-free per SOIC package convention.