PIC16C716-20/P - 8-bit 20MHz OTP MCU w/ ADC & PWM | Microchip
MPN: PIC16C716-20/P ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.14 | $5.14 |
| 10 | $4.62 | $46.20 |
| 100 | $4.1 | $410.00 |
| 500 | $3.65 | $1,825.00 |
| 1,000 | $3.2 | $3,200.00 |
PIC16C716-20/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, peripherals, and I/O on one die. The PIC16C716 belongs to the PIC16 mid-range family, a lineage that introduced Harvard-architecture 8-bit RISC cores optimized for deterministic real-time control. Within the broader taxonomy, PIC16C716 is an 8-bit MCU, then a mid-range microcontroller, then an OTP-programmable embedded controller, then a semiconductor IC, in that order from most specific to most general. This hierarchical placement helps procurement, schematic review, and AI knowledge-graph retrieval tasks.
Key differentiating features include 200 ns instruction execution with single-cycle operation for most instructions, 4 channels of 8-bit A/D for sensor acquisition, a CCP module for PWM motor or LED control, an 8-bit timer/counter plus a 16-bit timer/counter, and a wide 2.5V to 5.5V operating voltage range suitable for both 3.3V and 5V systems. The 13 I/O pins sink/source up to 25 mA per pin, enabling direct LED drive without buffer transistors in many designs.
The PIC16C716 uses a Harvard architecture with separated program and data buses, allowing the CPU to fetch an instruction and a data operand in a single cycle. Its OTP EPROM program memory supports prototyping and small-to-medium volume production where field re-programmability is not required. The device is upwards compatible with the PIC16C5X and PIC12CXXX families, easing code migration.
Typical applications include automotive sensor interfaces, industrial control loops, white-goods appliance controllers, and consumer-electronics front panels where 8-bit A/D plus PWM in an 18-pin package is an ideal fit.
When designing with this device, plan for OTP programming: code must be fully verified before device programming, because OTP cannot be erased or rewritten. Use the in-circuit debugger ICD or emulator during development and migrate to the OTP part for production.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16C716-20/P — 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 PIC16C716-20/P (same form factor and footprint) — differing in Package, Timers, ADC, Core Architecture, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16C716-20I/P
✅ Drop-In✓ In Stock
$3.05 / Unit
View Datasheet →PIC16C716-04/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C712-20/P
✅ Drop-In✓ In Stock
$3.18 / Unit
View Datasheet →PIC16C711-20/P
✅ Drop-In✓ In Stock
$3.1 / Unit
View Datasheet →PIC16F716-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C715-20/P
✅ Drop-In✓ In Stock
$1.94 / Unit
View Datasheet →PIC16C716-20/P Maximum Ratings & Electrical Characteristics
| CPU Core | PIC16 mid-range 8-bit RISC |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 bytes |
| Maximum Clock Frequency | 20 MHz |
| Instruction Cycle Time | 200 ns |
| Number of Instructions | 35 single-word |
| I/O Pins | 13 |
| ADC Channels | 4 channels x 8-bit |
| Timers | 1 x 8-bit, 1 x 16-bit |
| CCP Modules | 1 (Capture/Compare/PWM) |
| Operating Voltage Range | 2.5 V to 5.5 V |
| Package | 18-pin PDIP (P) |
| Watchdog Timer | Yes |
| Brown-out Reset | Yes |
| In-Circuit Debug | ICD compatible |
| Pin Count | 18 |
PIC16C716-20/P Pin Configuration
| Pin 1 | RA2 — Bidirectional I/O / analog channel 2 |
| Pin 2 | RA3 — Bidirectional I/O / analog channel 3 |
| Pin 3 | RA4/T0CKI — Bidirectional I/O (open-drain) / Timer0 clock input |
| Pin 4 | RA5/MCLR — Bidirectional I/O / Master Clear reset (active low) |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0/INT — Bidirectional I/O / external interrupt input |
| Pin 7 | RB1 — Bidirectional I/O |
| Pin 8 | RB2 — Bidirectional I/O |
| Pin 9 | RB3 — Bidirectional I/O |
| Pin 10 | RB4 — Bidirectional I/O / interrupt-on-change |
| Pin 11 | RB5 — Bidirectional I/O / interrupt-on-change |
| Pin 12 | RB6 — Bidirectional I/O / interrupt-on-change / ICSP clock |
| Pin 13 | RB7 — Bidirectional I/O / interrupt-on-change / ICSP data |
| Pin 14 | VDD — Positive supply voltage (2.5V to 5.5V) |
| Pin 15 | OSC1 — Crystal oscillator input / external clock input |
| Pin 16 | OSC2 — Crystal oscillator output |
| Pin 17 | RC0 — Bidirectional I/O |
| Pin 18 | RC1 — Bidirectional I/O |
Typical Applications
PIC16C716-20/P is suitable for 6 applications: Automotive Sensor Interface, Industrial Control Loops, White-Goods Appliance Controllers, Consumer Electronics Front Panels, Battery-Powered Portable Devices, HVAC Actuator Control.
Automotive Sensor Interface
The PIC16C716-20/P is well suited for automotive sensor interface modules thanks to its integrated 4-channel 8-bit ADC, 20 MHz operation, and 13 I/O pins in an 18-pin PDIP package. The 200 ns instruction cycle enables real-time sampling of temperature, pressure, and position sensors at rates exceeding 100 kSPS aggregate. Its wide 2.5V-5.5V operating range tolerates automotive 5V rail transients. The CCP module provides PWM output for actuator control, while brown-out reset protects against cranking-voltage dips. The 25 mA per-pin drive strength directly interfaces relays and LEDs without external buffers. Although the device lacks AEC-Q100 documentation, it has shipped in body-electronics subsystems where cost sensitivity outweighs formal qualification.
Recommended
Industrial Control Loops
For industrial PID control loops, the PIC16C716-20/P offers the PIC16 mid-range RISC core with hardware multiply support, deterministic interrupt latency under 200 ns, and 128 bytes of RAM sufficient for loop variable storage. The 4-channel 8-bit ADC samples process variables such as temperature, flow, and pressure directly. The 16-bit timer/counter drives the PWM duty cycle for valve or heater actuation with 10-bit resolution at 20 MHz. The Watchdog Timer ensures recovery from software faults in unattended machinery. The 18-pin PDIP package supports through-hole PCB assembly preferred in industrial retrofit designs. The OTP memory requires code to be fully validated before programming.
Recommended
White-Goods Appliance Controllers
Washing machines, dishwashers, and microwave ovens benefit from the PIC16C716-20/P's combination of 13 I/O pins, 4-channel ADC for water-level and temperature sensing, CCP module for motor PWM, and 2.5V-5.5V supply tolerance. The 200 ns instruction cycle is fast enough for sensor-fusion algorithms across multiple inputs. Brown-out reset and Watchdog Timer ensure safe recovery from supply glitches and software lockups. The 18-pin PDIP package is preferred for hand-soldered prototyping and low-volume appliance production. OTP memory protects intellectual property in cost-sensitive consumer products. Wide temperature tolerance suits appliance environments.
Recommended
Consumer Electronics Front Panels
The PIC16C716-20/P drives consumer electronics front-panel functions including button matrix scanning, LED dimming via PWM, and rotary-encoder input. Its 13 I/O pins handle a 4x4 key matrix plus 4 indicator LEDs without external logic. The CCP module generates PWM for LED backlight brightness control with 10-bit resolution. The 20 MHz clock provides debouncing and quadrature-decoding for rotary encoders. OTP memory prevents firmware extraction from consumer products. The 18-pin PDIP package allows easy rework during product development. The 2.5V-5.5V range supports both 3.3V and 5V system designs.
Recommended
Battery-Powered Portable Devices
For battery-powered applications such as portable instruments and handheld tools, the PIC16C716-20/P offers low-power SLEEP mode with Watchdog Timer wake-up, 2.5V minimum operating voltage compatible with two AA cells, and efficient code density from the 35-instruction RISC architecture. The 13 I/O pins drive LCD segments, LEDs, and keypad inputs. Brown-out reset protects against battery-end-of-life voltage decay. The 18-pin PDIP supports hand-soldered prototype assemblies. The integrated ADC monitors battery voltage for accurate end-of-life prediction. OTP memory prevents unauthorized firmware cloning in commercial products.
Recommended
HVAC Actuator Control
Heating, ventilation, and air-conditioning damper and valve actuators leverage the PIC16C716-20/P's 16-bit timer for precise PWM motor control, 4-channel ADC for temperature and humidity sensing, and 13 I/O pins for switch inputs and relay outputs. The 200 ns instruction cycle closes the control loop in well under 1 ms, achieving smooth damper positioning. The CCP module generates complementary PWM outputs for H-bridge motor drivers. Brown-out reset and Watchdog Timer ensure fail-safe operation in unattended HVAC systems. The 18-pin PDIP package suits through-hole assembly preferred in building-automation products.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C716-20/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C716-20I/P | PIC16C716-04/P | PIC16C712-20/P | PIC16F716-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-pin PDIP | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 1 KB OTP | 3.5 KB Flash |
| Max Clock Frequency | 20 MHz | 20 MHz | 4 MHz | 20 MHz | 20 MHz |
| ADC Channels | 4 x 8-bit | 4 x 8-bit | 4 x 8-bit | 4 x 8-bit | 4 x 8-bit |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash (re-programmable) |
| CCP Module | Yes | Yes | Yes | No | Yes |
| Lifecycle Status | NRND | NRND | NRND | NRND | Active |
Key Differentiators
- Integrated 4-channel 8-bit ADC versus PIC16C711's no-ADC architecture (vs PIC16C711-20/P)
- CCP (Capture/Compare/PWM) module versus PIC16C712's no-CCP architecture (vs PIC16C712-20/P)
- Flash re-programmability versus OTP one-time programming (vs PIC16F716-I/P)
- Higher maximum clock speed versus PIC16C716-04/P variant (vs PIC16C716-04/P)
Design Notes
The PIC16C716-20/P uses OTP (One-Time-Programmable) EPROM memory that cannot be erased or rewritten once programmed. Always fully validate firmware using the JW (windowed) UV-erasable version PIC16C716/JW or an in-circuit emulator before committing to OTP programming. A single bit error in production code wastes every programmed device, so code-review discipline is critical for OTP parts.
Decouple VDD (pin 14) with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a 10 uF bulk capacitor near the supply entry point. The PIC16C716-20/P draws peak currents of 30-40 mA during ADC conversion and clock transitions; inadequate decoupling causes ADC accuracy errors and erratic resets. Connect VSS (pin 5) directly to the ground plane for clean ADC reference performance.
Keep crystal traces (OSC1 pin 15, OSC2 pin 16) short and surrounded by ground plane to minimize EMI. Place the crystal within 10 mm of the OSC pins. Use a 1 MOhm parallel resistor across the crystal if low-drive operation is needed. For 20 MHz operation, use a fundamental-mode crystal with 20 pF load capacitance, or select an external clock source with CMOS drive strength.
Route the MCLR/RA5 pin (pin 4) to a dedicated reset circuit rather than directly to VDD. Use a 10 kOhm pull-up to VDD plus a 100 nF capacitor to ground for power-on reset delay. Avoid using RA5/MCLR as a general I/O unless reset supervision is not required, because incorrect configuration can prevent device programming.
Compliance Information
RoHS and REACH compliant per Microchip product documentation. Not AEC-Q100 qualified - for automotive applications use PIC16F716-E/P or PIC16F1936-I/P with automotive qualification. Lead-free packaging confirmed; halogen-free status not explicitly stated in datasheet.
