PIC16C711T-20/SO - 8-Bit 20MHz 1.75KB OTP MCU 18-SOIC | Microchip
MPN: PIC16C711T-20/SO ⚠ Last Time Buy| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.5 | $4.50 |
| 10 | $4.1 | $41.00 |
| 100 | $3.65 | $365.00 |
| 500 | $3.2 | $1,600.00 |
| 1,000 | $2.85 | $2,850.00 |
PIC16C711T-20/SO Overview
An OTP microcontroller is a one-time-programmable device programmed once via an external programmer and retaining the program for the device's operational lifetime without the ability for field re-programming. As a member of the broader PIC® 16C microcontrollers product family, the PIC16C711 belongs to the mid-range architecture tier, balancing cost, code density, and peripheral integration for cost-sensitive embedded designs. It is functionally similar to the flash-based PIC16F716, with the latter offering in-circuit reprogrammability for development cycles.
Key differentiating features include 35 single-word instructions, an 8-level deep hardware stack, and integrated brown-out reset plus watchdog timers and Watchdog Timer functionality for enhanced reliability. The 4-channel 8-bit A/D converter eliminates the need for an external ADC in many sensor-interface designs, while the 13 I/O pins provide flexible GPIO and peripheral routing. Combined with an operating voltage range of 2.5V to 6.0V, the device supports both 3.3V and 5V system designs commonly found in industrial and consumer applications.
Architecturally, the PIC16C711 uses a RISC instruction-set architecture with separate program and data buses (Harvard architecture), allowing simultaneous instruction fetch and data access. The 14-bit instruction word provides compact code density, and the 8-bit data path interacts with on-chip peripherals via a unified bus. Brown-out protection and a programmable watchdog timer improve field reliability, particularly in noisy industrial environments.
Typical applications include industrial control logic, sensor signal conditioning, low-end consumer appliance controllers, and embedded educational platforms. The integrated ADC makes the part well suited for reading potentiometers, thermistors, and battery monitor voltages without an external converter.
When designing with this device, ensure that the chosen OTP variant matches the production intent (development may benefit from a flash-based equivalent). Programming voltage and timing requirements must follow the device programming specification, and decoupling should follow standard CMOS practices with a 0.1 µF ceramic capacitor placed close to VDD.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16C711T-20/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 PIC16C711T-20/SO (same form factor and footprint) — differing in Package, Program Memory Type, Program Memory Size, ADC, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16C711T-20/SO
✅ Drop-In✓ In Stock
$2.85 / Unit
View Datasheet →PIC16C711-20/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C711T-20E/SO
✅ Drop-In✓ In Stock
$2.69 / Unit
View Datasheet →PIC16F716-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C710T-20/SO
✅ Drop-In✓ In Stock
$2.65 / Unit
View Datasheet →PIC16C711-20I/SO
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC16C711T-20/SO Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC® 16C |
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC16 (RISC, Harvard) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 1.75 KB (1K x 14) |
| RAM Size | 68 bytes |
| EEPROM Size | None |
| Maximum Clock Frequency | 20 MHz |
| Instruction Execution Time | 200 ns |
| Number of I/O Pins | 13 |
| ADC Channels | 4 channels x 8-bit |
| ADC Resolution | 8 bits |
| Operating Voltage Range | 2.5 V to 6.0 V |
| Instruction Set | 35 single-word instructions |
| Stack Depth | 8 levels |
| Package | 18-SOIC (300 mil) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
PIC16C711T-20/SO Pin Configuration
| Pin 1 | RA2/AN2 — GPIO RA2 / Analog input channel 2 |
| Pin 2 | RA3/AN3 — GPIO RA3 / Analog input channel 3 |
| Pin 3 | RA4/T0CKI — GPIO RA4 / Timer0 clock input |
| Pin 4 | MCLR — Master Clear (reset) input |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0/INT — GPIO RB0 / External interrupt input |
| Pin 7 | RB1 — GPIO RB1 |
| Pin 8 | RB2 — GPIO RB2 |
| Pin 9 | RB3 — GPIO RB3 |
| Pin 10 | RB4 — GPIO RB4 |
| Pin 11 | RB5 — GPIO RB5 |
| Pin 12 | RB6 — GPIO RB6 |
| Pin 13 | RB7 — GPIO RB7 |
| Pin 14 | VDD — Positive supply voltage |
| Pin 15 | OSC2/CLKOUT — Oscillator output / Clock output |
| Pin 16 | OSC1/CLKIN — Oscillator input / External clock input |
| Pin 17 | RA0/AN0 — GPIO RA0 / Analog input channel 0 |
| Pin 18 | RA1/AN1 — GPIO RA1 / Analog input channel 1 |
Typical Applications
PIC16C711T-20/SO is suitable for 6 applications: Industrial Sensor Interface, Consumer Appliance Controllers, Battery-Powered Embedded Devices, Educational Microcontroller Platforms, Hobbyist and Maker Projects, Automotive Body Electronics (Legacy).
Industrial Sensor Interface
The PIC16C711T-20/SO fits industrial sensor interface designs through its integrated 4-channel 8-bit ADC that directly digitizes analog signals from sensors such as thermistors, pressure transducers, and potentiometers without external converter components. Its 20 MHz CPU speed at 200 ns per instruction handles real-time sampling and decision logic for control loops. Operating from 2.5V to 6.0V, the device interfaces with both 3.3V and 5V sensor rails commonly found in factory automation equipment. The 13 GPIO pins drive status LEDs, relay coils, and isolated communication lines to higher-level controllers.
Recommended
Consumer Appliance Controllers
The PIC16C711T-20/SO suits consumer appliance control applications including washing machine timers, microwave oven user interfaces, and air-conditioner remote controls. The 1.75 KB OTP memory stores finite-state-machine logic and user-interface routines, while 68 bytes RAM supports momentary variables for button debouncing and display refresh. Its compact 18-SOIC package enables placement within tight enclosures, while integrated ADC channels monitor temperature, humidity, or rotary encoder positions directly from the MCU.
Recommended
Battery-Powered Embedded Devices
The PIC16C711T-20/SO operates from 2.5V to 6.0V, accommodating single-cell lithium, two-cell AA, or 9V battery configurations in portable embedded products. Its CMOS RISC architecture provides low active power consumption, and the integrated brown-out reset prevents erratic operation as battery voltage decays. The 4-channel ADC monitors battery voltage and charger state, while 13 I/O pins drive low-power LEDs and user inputs. The 18-SOIC package supports compact handheld form factors.
Recommended
Educational Microcontroller Platforms
The PIC16C711T-20/SO is well suited for educational microcontroller teaching kits and university embedded-systems laboratories due to its straightforward PIC16 mid-range architecture and 35-instruction set. Its 18-SOIC package is breadboard-compatible through SOIC-to-DIP adapter boards, allowing students to prototype and experiment without surface-mount soldering challenges. The integrated ADC introduces learners to mixed-signal embedded design without additional components. Documentation is widely available from Microchip and academic resources.
Recommended
Hobbyist and Maker Projects
The PIC16C711T-20/SO enables hobbyist projects including custom LED controllers, simple robotics, and sensor-driven art installations. Its 20 MHz speed drives PWM-based LED dimming, servo control, and timing-sensitive creative applications. The 4-channel ADC reads potentiometers, light-dependent resistors, and other analog sensors for interactive installations. The compact 18-SOIC package allows integration into small enclosures, while PIC® architecture enjoys broad community documentation and example code.
Recommended
Automotive Body Electronics (Legacy)
The PIC16C711T-20/SO with industrial or extended temperature variants is suitable for legacy automotive body electronics applications such as interior lighting controllers, seat position memories, and accessory timers. Its 4-channel ADC monitors position sensors and switch inputs, while 13 GPIO pins drive relay coils and LED indicators. The integrated watchdog timer improves reliability in noisy automotive electrical systems. However, for new automotive designs, AEC-Q100 qualified parts are preferred.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C711T-20/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C711-20/SO | PIC16C711T-20E/SO | PIC16F716-I/SO | PIC16C710T-20/SO | PIC16C711-20I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC |
| Program Memory Type | OTP (1K x 14) | OTP (1K x 14) | OTP (1K x 14) | Flash (2K words) | OTP (512 x 14) | OTP (1K x 14) |
| Program Memory Size | 1.75 KB (1K x 14) | 1.75 KB (1K x 14) | 1.75 KB (1K x 14) | 2 KB (1K x 14 flash words) | 1 KB (512 x 14) | 1.75 KB (1K x 14) |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| RAM Size | 68 bytes | 68 bytes | 68 bytes | 128 bytes | 36 bytes | 68 bytes |
| ADC Channels | 4 x 8-bit | 4 x 8-bit | 4 x 8-bit | 4 x 8-bit | 3 x 8-bit | 4 x 8-bit |
| Number of I/O Pins | 13 | 13 | 13 | 13 | 13 | 13 |
| Operating Temperature Grade | Commercial (0 to +70°C) | Commercial (0 to +70°C) | Extended (-40 to +125°C) | Industrial (-40 to +85°C) | Commercial (0 to +70°C) | Industrial (-40 to +85°C) |
Key Differentiators
- Integrated 4-channel 8-bit ADC eliminates external converter requirement (vs PIC16C710T-20/SO)
- Recommended flash-based replacement available with field-upgrade capability (vs PIC16F716-I/SO)
- Extended temperature variant available for harsh environments (vs PIC16C711T-20E/SO)
- Larger RAM than PIC16C710 sibling (vs PIC16C710T-20/SO)
Design Notes
Decouple the VDD pin with a 0.1 µF ceramic capacitor placed within 5 mm of the supply pin, plus a bulk 10 µF tantalum or aluminum electrolytic capacitor near the MCU supply entry point. The PIC16C711T-20/SO operates from 2.5V to 6.0V; verify that VDD does not dip below 2.5V during peak load transients to prevent brown-out reset. For battery-powered designs, add a bulk capacitor on VDD to absorb voltage steps caused by sudden GPIO switching.
Keep analog input traces short and routed away from digital switching signals to minimize ADC noise pickup. Place the MCLR pull-up resistor (typically 10 kΩ) close to the MCU MCLR pin, and ensure the MCLR trace does not run parallel to noisy switching traces. The OSC1/OSC2 traces should be routed as short as possible with a ground guard ring for stable clock operation.
OTP memory can only be programmed once - verify code thoroughly using a flash-based equivalent (PIC16F716) before committing to production OTP parts. The ADC reference voltage (VREF) is internally tied to VDD; for precision measurements, ensure VDD is well-regulated with low ripple. Watchdog timer must be cleared (by CLRWDT instruction) within its timeout period to prevent unintended reset. Configuration fuses must be set correctly during programming for oscillator type, watchdog enable, and code protection.
Compliance Information
Compliance status for PIC16C711T-20/SO not specified in verified web data. The PIC16C family was launched in the 1990s; consult Microchip product page or latest environmental compliance documentation for current RoHS/REACH status.
