PIC16C710-04I/SO - 8-bit 4MHz OTP MCU, 18-SOIC | Microchip
MPN: PIC16C710-04I/SO ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.35 | $335.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.6 | $2,600.00 |
PIC16C710-04I/SO Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), working RAM, and peripheral interfaces. PIC microcontrollers use a Harvard RISC architecture with separate program and data buses, enabling single-cycle instruction execution. The PIC16C7X family sits in Microchip's mid-range portfolio, balancing instruction simplicity, low cost, and analog integration. It belongs to the broader 8-bit MCU category alongside 8051, AVR, and other legacy architectures, and feeds into the larger hierarchy of microcontrollers > embedded processors > semiconductors.
Key features of the PIC16C710-04I/SO include 4 MHz maximum clock, 4-channel 8-bit ADC with 25 us conversion time, 13 digital I/O lines, 36 bytes of data RAM, an operating voltage range of 2.5 V to 6.0 V, and an industrial temperature grade (-40 C to +85 C). The OTP program memory is factory- or field-programmable one time only, which simplifies production for high-volume fixed-code applications while reducing per-unit cost compared to flash-based devices.
The architecture combines a 14-bit instruction word with a separate 8-bit data path. A 2-level hardware stack, 8-bit timer/counter with programmable prescaler, watchdog timer with its own on-chip RC oscillator, and a power-on reset (POR) circuit are all integrated. Brown-out protection and a power-saving SLEEP mode reduce system-level current draw for battery-operated use cases.
Typical applications include entry-level A/D signal conditioning in automotive sensors, white-goods control boards, simple industrial monitoring loops, and consumer-appliance user-interface controllers. The 4-channel ADC is well-suited to multi-sensor reading, while the small 18-SOIC footprint supports compact PCB layouts.
When designing with this device, allow for the OTP one-time-programming constraint by budgeting prototype-to-production flow carefully. Use Microchip's PICSTART-Plus or MPLAB PM3 programmers with appropriate header adapters, and confirm the in-circuit programming header placement before committing to PCB layout.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the bare manufacturer datasheet.
Drop-in alternatives for PIC16C710-04I/SO — 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 PIC16C710-04I/SO (same form factor and footprint) — differing in Core Architecture, Package, Watchdog Timer, ADC, Program Memory Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16C711-04I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C710-04I/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.9 / Unit
View Datasheet →PIC16C710-04/SO
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC16C710T-04I/SO
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC16F710-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C710-04I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16C 8-bit RISC (Harvard) |
| Family | PIC16C71X mid-range |
| Maximum Clock Frequency | 4 MHz |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 896 B (512 x 14 words) |
| Data RAM | 36 B |
| Number of I/O Pins | 13 |
| ADC | 4-channel, 8-bit |
| Timer/Counters | 1 x 8-bit with prescaler |
| Watchdog Timer | Yes (independent on-chip RC) |
| Operating Voltage Range | 2.5 V to 6.0 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Package | 18-SOIC (SO, 300 mil) |
| Mounting Type | Surface Mount |
| Instruction Word Size | 14 bits |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| MSL Level | 1 (unlimited) |
PIC16C710-04I/SO Pin Configuration
| Pin 1 | RA0/AN0 — Digital I/O / ADC analog input channel 0 |
| Pin 2 | RA1/AN1 — Digital I/O / ADC analog input channel 1 |
| Pin 3 | RA2/AN2 — Digital I/O / ADC analog input channel 2 |
| Pin 4 | RA3/AN3 — Digital I/O / ADC analog input channel 3 |
| Pin 5 | RA4/T0CKI — Digital I/O / Timer 0 clock input |
| Pin 6 | MCLR/VPP — Master clear (reset) / programming voltage input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| Pin 9 | OSC2/CLKOUT — Crystal oscillator output / clock output (Fosc/4) |
| Pin 10 | RB0/INT — Digital I/O / external interrupt input |
| Pin 11 | RB1 — Digital I/O |
| Pin 12 | RB2 — Digital I/O |
| Pin 13 | RB3 — Digital I/O |
| Pin 14 | RB4 — Digital I/O |
| Pin 15 | RB5 — Digital I/O |
| Pin 16 | RB6 — Digital I/O |
| Pin 17 | RB7 — Digital I/O |
| Pin 18 | VDD — Positive supply voltage (2.5 V to 6.0 V) |
Typical Applications
PIC16C710-04I/SO is suitable for 6 applications: Industrial Sensor Signal Conditioning, White Goods Appliance Control, Automotive Entry-Level A/D Modules, Battery-Powered Remote Sensor Nodes, Consumer IR Remote Control Receivers, Smart Home Sensor Hubs.
Industrial Sensor Signal Conditioning
The PIC16C710-04I/SO's 4-channel 8-bit ADC simplifies multi-sensor analog front-end designs in factory automation and process control. With 4 MHz MIPS throughput per channel, it samples four 0-5 V transducer signals - such as thermistor bridges, pressure transducers, or 4-20 mA loops scaled down - and converts them at typical 25 us per channel. The 18-SOIC package keeps the PCB compact, while the integrated watchdog timer and brown-out reset reduce external component count for IEC 61010 industrial compliance. Compared with discrete ADC + MCU architectures, the single-chip design cuts BOM cost by approximately 30% and lowers firmware complexity by centralizing calibration routines.
Recommended
White Goods Appliance Control
Washing machines, dishwashers, and microwave ovens benefit from the PIC16C710-04I/SO's 13 digital I/O and 4-channel ADC combination. The MCU directly drives relay coils, LED indicators, and triac-based heater controls while reading temperature sensors (NTC thermistors) and water level inputs through the on-chip ADC. Operating from 2.5 V to 6.0 V lets it share the same 5 V rail as the analog sensors, eliminating a separate voltage regulator. The OTP program memory prevents accidental firmware tampering during manufacturing, and the industrial -40 to +85 C range survives steam-room and motor-bay thermal stress.
Recommended
Automotive Entry-Level A/D Modules
Although the PIC16C710-04I/SO is industrial-grade, it is widely used in non-safety automotive subsystems such as interior lighting controllers, HVAC blend-door actuators, and seat-position sensor interfaces. The 4-channel 8-bit ADC reads potentiometer-based position feedback and temperature sensors, while 13 I/O lines drive small DC motors via H-bridge drivers. The 4 MHz clock and 14-bit instruction set execute position-control PID loops with sufficient headroom. Designers targeting AEC-Q100 environments should upgrade to PIC16F710-I/SO (flash) or PIC18F family for full automotive qualification.
Recommended
Battery-Powered Remote Sensor Nodes
The PIC16C710-04I/SO's SLEEP mode and 2.5 V minimum supply let it run from two AA cells in remote sensor applications. The 8-bit ADC periodically wakes the MCU via watchdog interrupt to measure battery voltage and external sensor levels, then returns to sleep drawing microamp-level current. OTP memory prevents firmware corruption from brown-out events, and the small 18-SOIC footprint supports compact enclosure designs. Compared with PIC16F84A, the integrated ADC eliminates an external ADC chip - reducing PCB area by roughly 15% in a 30 mm x 40 mm remote node.
Recommended
Consumer IR Remote Control Receivers
Consumer IR learning remote controls, set-top box receivers, and HVAC remote thermostats use the PIC16C710-04I/SO to demodulate 38 kHz carrier IR signals and decode RC5 or NEC protocols. The 8-bit timer captures edge timings while the on-chip ADC reads battery voltage and ambient light sensors. With 36 B RAM and 896 B OTP, the device fits simple protocol decoders plus custom button maps without external memory. The 18-SOIC package is cost-effective for high-volume consumer manufacturing runs.
Recommended
Smart Home Sensor Hubs
Low-cost smart-home sensor hubs use the PIC16C710-04I/SO to bridge analog sensors (light, temperature, humidity via resistive bridges) to a central IoT gateway over a UART link. The 4-channel ADC reads multiple analog sensors, while 13 I/O pins drive status LEDs and a low-cost RF or sub-GHz transceiver handshake line. The industrial temperature grade and 5 V tolerance let the device share rails with mains-powered sensor interfaces. With 896 B OTP, the firmware handles local preprocessing before forwarding summarized data to the gateway.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C710-04I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C711-04I/SO | PIC16C710-04/SO | PIC16C710T-04I/SO | PIC16F710-I/SO |
|---|---|---|---|---|---|
| Package | 18-SOIC (300 mil) | 18-SOIC (300 mil) - same | 18-SOIC (300 mil) - same | 18-SOIC (300 mil) - same | 18-SOIC (300 mil) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 896 B OTP | 1 KB OTP (+14%) | 896 B OTP (same) | 896 B OTP (same) | 1 KB Flash (in-circuit programmable) |
| Data RAM | 36 B | 36 B (same) | 36 B (same) | 36 B (same) | 36 B (same) |
| ADC | 4-ch 8-bit | 4-ch 8-bit (same) | 4-ch 8-bit (same) | 4-ch 8-bit (same) | 4-ch 8-bit (same) |
| I/O Pins | 13 | 13 (same) | 13 (same) | 13 (same) | 13 (same) |
| Max Clock Frequency | 4 MHz | 4 MHz (same) | 4 MHz (same) | 4 MHz (same) | 20 MHz (5x faster) |
| Operating Voltage | 2.5 V to 6.0 V | 2.5 V to 6.0 V (same) | 2.5 V to 6.0 V (same) | 2.5 V to 6.0 V (same) | 2.0 V to 5.5 V (wider low end) |
| Temperature Grade | Industrial (-40 to +85 C) | Industrial (same) | Commercial (0 to +70 C) | Industrial (same) | Industrial (same) |
| Memory Type | OTP (one-time) | OTP (one-time) | OTP (one-time) | OTP (one-time) | Flash (reprogrammable) |
Key Differentiators
- More program memory with pin-compatibility (vs PIC16C711-04I/SO)
- Flash-based field reprogrammability (vs PIC16F710-I/SO)
- Lower-cost commercial temperature variant (vs PIC16C710-04/SO)
Design Notes
The OTP memory can be programmed exactly once. Always prototype with a windowed or flash-based equivalent (such as PIC16F710-I/SO in the same 18-SOIC) and migrate to PIC16C710-04I/SO only for production runs. Verify oscillator start-up timing at the chosen supply voltage before committing to a 4 MHz crystal - lower VDD can lengthen crystal start-up beyond the POR delay.
Add a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 18) and a 10 uF bulk capacitor at the regulator output. The PIC16C710 datasheet (DS30430D) recommends a maximum supply rise time of 0.05 V/ms for predictable POR behavior. For battery operation, place the MCU in SLEEP between ADC conversions; the watchdog timer can wake the part at programmable intervals.
Keep the crystal/oscillator traces short and symmetric, and route them over a continuous ground plane. Avoid running digital I/O traces parallel to the oscillator traces to minimize crosstalk into the ADC. The analog inputs AN0-AN3 should be routed with ground guarding on both sides, and the VREF+ (if used as reference) should be bypassed with 10 uF + 100 nF to minimize ADC noise on the LSB.
Reserve the MCLR/VPP pin (pin 6) access on the PCB for in-circuit programming using Microchip's PICSTART-Plus or MPLAB PM3 with the appropriate 18-SOIC programming adapter. A 10 kohm pull-up on MCLR and a 100 nF cap to ground is recommended for noise immunity in electrically noisy environments.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade - not AEC-Q100 qualified. For automotive applications, use PIC16F710-I/SO or PIC18F family with AEC-Q100 documentation.
