PIC16F76-I/SP 20MHz 8-Bit Flash MCU | Microchip Technology
MPN: PIC16F76-I/SP ✓ ActivePIC16F76-I/SP Overview
A microcontroller is a programmable semiconductor device that integrates a CPU core, program memory, data memory, I/O ports, and dedicated peripherals on one chip. The PIC16F76 uses the PIC16 mid-range RISC architecture, which provides a compact instruction set and efficient event-driven control. Its 20 MHz operating capability is suitable for embedded products that need deterministic peripheral handling without requiring a high-complexity processor.
The PIC16F76-I/SP includes 5 channels of an 8-bit analog-to-digital converter, 2 additional timers, 2 capture/compare/PWM functions, and a synchronous serial port configurable as either 3-wire SPI or 2-wire I²C. A USART supports asynchronous serial communication. The combination of 22 I/O pins and these peripherals allows the MCU to interface with sensors, displays, relays, motor-control stages, and external communication transceivers while retaining the simplicity of an 8-bit architecture.
The device stores firmware in 14 KB, equivalent to 8K by 14-bit words, and provides 368 bytes of data RAM. Flash memory supports in-system reprogramming, making the MCU useful for products requiring field updates or configurable control behavior. The verified distributor data identifies the part as a PIC16 8-bit MCU with a 28-pin SPDIP package; detailed operating-temperature, voltage, and package-dimension values require confirmation from the manufacturer datasheet.
Typical applications include industrial controllers, environmental data loggers, instrumentation, keypad interfaces, LED and motor-control systems, serial protocol bridges, and compact embedded control boards. The SPI and I²C modes allow connection to sensors and memory devices, while the USART supports communication with host systems and wireless modules.
Designers should confirm the exact pin assignment, oscillator options, reset behavior, programming requirements, and electrical limits in the manufacturer datasheet before layout or firmware deployment. For a new PCB, preserve decoupling and programming access, use a supported oscillator arrangement where applicable, and validate the firmware against the selected oscillator and peripheral configuration.
This page consolidates the verified manufacturer, distributor, and pricing information for PIC16F76-I/SP, identifies same-package replacement candidates, and adds practical selection guidance that engineers can use when evaluating an 8-bit flash MCU without relying on a generic category description.
Drop-in alternatives for PIC16F76-I/SP — 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 PIC16F76-I/SP (same form factor and footprint) — differing in Package, ADC, Program Memory, Timers, Program Memory Type.
PIC16F76-E/SP
✅ Drop-InContact for price
View Datasheet →PIC16F74-I/P
✅ Drop-InContact for price
View Datasheet →PIC16F73-I/SP
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →PIC16F76-I/SP Maximum Ratings & Electrical Characteristics
| Microcontroller Type | 8-bit CMOS flash microcontroller |
| Maximum Clock Frequency | 20 MHz |
| Program Memory | 14 KB (8K x 14 words) |
| Data RAM | 368 bytes |
| I/O Pin Count | 22 pins |
| Package | 28-pin SPDIP |
| Total Pin Count | 28 pins |
| Analog-to-Digital Converter Channels | 5 channels |
| ADC Resolution | 8 bits |
| Additional Timers | 2 timers |
| Capture/Compare/PWM Functions | 2 functions |
| Synchronous Serial Port | Configurable as 3-wire SPI or 2-wire I2C |
| Asynchronous Serial Interface | USART |
| Architecture | PIC16 mid-range RISC |
| Program Memory Type | Flash |
| Mounting Type | Through-hole |
PIC16F76-I/SP 28-pin spdip Pin Configuration Guide
Pin configuration for PIC16F76-I/SP (28-pin spdip package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC16F76-I/SP.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC16F76-I/SP is suitable for 6 applications: Industrial Data Logger, Environmental Monitoring Controller, Serial Protocol Bridge, LED and Motor Control, Instrumentation Control Panel, Embedded Communication Module.
Industrial Data Logger
The PIC16F76-I/SP fits a compact industrial logger because it combines 14 KB of Flash for firmware and logged data handling with 368 bytes of RAM for active buffering. Its 5-channel, 8-bit ADC supports multiple analog sensors, while 22 I/O pins leave room for digital status inputs, alarms, and storage-control signals. The synchronous serial port can use I²C for common sensors and external nonvolatile memory, or SPI when a higher-throughput device is available. A design should budget memory carefully because the MCU is optimized for control and modest data acquisition rather than large buffering. Timer resources can schedule periodic sampling and communication intervals without excessive polling. The 20 MHz clock provides headroom for a manageable protocol stack, though the verified source set does not state the exact ADC throughput.
Recommended
Environmental Monitoring Controller
The PIC16F76-I/SP is suitable for environmental monitoring because its 5-channel, 8-bit ADC can sample temperature, humidity, light, and other analog sensors through appropriate conditioning circuits. The 22 I/O pins support heaters, relays, status LEDs, and digital probes without requiring a larger microcontroller. I²C is useful for common digital sensors and EEPROM devices, while the USART can report readings to a host or local communications module. The 14 KB Flash capacity supports application firmware, calibration tables, and configuration data, although 368 bytes of RAM requires disciplined buffering. Sampling timers can maintain consistent acquisition intervals, and the 20 MHz operating rate provides execution headroom for filtering and diagnostics. Sensor accuracy remains dependent on the external analog front end rather than the ADC resolution alone.
Recommended
Serial Protocol Bridge
The PIC16F76-I/SP can serve as a compact protocol bridge because one device includes both a configurable synchronous serial port for SPI or I²C and a separate USART. Firmware can translate messages between a master SPI or I²C controller and an RS-232, RS-485, or other asynchronous peripheral. Its 14 KB Flash accommodates framing logic, buffers, and protocol tables, while the 20 MHz clock supports deterministic byte-level processing. The 22 I/O pins allow status LEDs, mode selectors, and interface-enable controls. Because only 368 bytes of RAM are available, the designer should use short queues and avoid copying complete frames unnecessarily. External level translators are still required when the connected interface uses voltage levels different from the MCU’s verified electrical limits.
Recommended
LED and Motor Control
The PIC16F76-I/SP fits compact LED and motor-control assemblies because it provides 2 capture/compare/PWM functions and 2 additional timers alongside 22 I/O pins. PWM outputs can regulate brightness or motor drive signals, while timer inputs can measure position, speed, or elapsed time for feedback control. The 5-channel ADC allows monitoring of current, temperature, or potentiometer position when suitable scaling and protection are added. SPI or I²C can connect to a display, driver, or configuration device, and the USART supports commissioning or diagnostics. The 20 MHz clock is appropriate for moderate control loops, while 14 KB of Flash leaves room for a bootloader or application parameters. External transistor or MOSFET stages remain necessary because an MCU pin is not a substitute for a power driver.
Recommended
Instrumentation Control Panel
The PIC16F76-I/SP is appropriate for an instrumentation control panel that combines a local display, keypad input, analog measurement, and serial host communication. The 5 ADC channels can monitor up to five multiplexed analog inputs, while 22 I/O pins support display control, keys, indicators, and interface signals. The synchronous serial port can drive a compatible display or memory device through SPI or I²C, and the USART supports a PC, service console, or data-acquisition unit. Timer modules can handle display refresh, debouncing, measurement intervals, and timeout functions. With 368 bytes of RAM, the firmware should avoid large display-frame buffers and should process data incrementally. The verified 20 MHz speed provides useful responsiveness, but timing margins must be checked against the selected crystal or oscillator arrangement.
Recommended
Embedded Communication Module
The PIC16F76-I/SP can act as the control processor in a compact communications module that connects SPI or I²C peripherals to a USART host link. The 14 KB Flash memory supports protocol conversion, framing, timeout handling, and configuration logic, while 22 I/O pins provide module-control and status functions. Its two additional timers and two capture/compare/PWM functions can support baud timing, packet timing, status indicators, or simple supervisory functions. The 5 ADC channels can also monitor supply or signal-health inputs. For wireless designs, the verified data does not identify a dedicated radio companion, so a suitable external module and its interface requirements must be selected separately. Firmware should use bounded buffers because the available SRAM is only 368 bytes, and a production design should validate timing against the highest supported communication rate.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F76-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F76-E/SP | PIC16F74-I/P | PIC16F73-I/SP |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SPDIP | 28-pin SPDIP | 28-pin SPDIP | 28-pin SPDIP |
| Temperature-Grade Suffix | -I/SP industrial grade | -E/SP extended commercial grade | -I/P industrial grade | -I/SP industrial grade |
Key Differentiators
- Higher temperature grade than the same-core -E/SP option (vs PIC16F76-E/SP)
- More verified peripheral resources than lower-family PIC16 candidates (vs PIC16F74-I/P)
- Integrated communication flexibility (vs PIC16F73-I/SP)
Design Notes
Treat the 28-pin SPDIP footprint and every signal assignment as verified only after checking the official PIC16F76 pin diagram. Place the MCU where programming and prototype access remain practical, and preserve the required decoupling positions near the power and ground pins. For a permanent production PCB, verify every peripheral function rather than relying on package position alone because multiplexing options can assign several functions to the same physical pin.
Validate the power rail, reset circuit, oscillator network, and decoupling against the manufacturer datasheet before applying power. The supplied sources confirm a 20 MHz-capable device but do not state its operating voltage, so no component values should be inferred from the MCU family name. Use the datasheet-specified voltage tolerances and current limits, and confirm brownout behavior if the product operates from a slowly changing battery source.
A package-compatible replacement is not automatically firmware-compatible. Before substituting PIC16F76-E/SP, PIC16F74-I/P, or PIC16F73-I/SP, compare interrupt vectors, timer registers, ADC channels, I/O multiplexing, memory size, and configuration bits against the deployed firmware. PIC16F76-E/SP is the closest temperature-grade alternative; the lower-family devices should be treated as conditional replacements rather than guaranteed equivalents.
Choose SPI, I²C, or USART according to bus length, clock rate, and external transceiver requirements. The MCU can support SPI or I²C through its synchronous serial port, but it does not remove the need for correct pull-ups, impedance control, grounding, or level translation. Keep sensitive analog inputs away from switching nodes and high-current paths, and validate the complete sensor front end rather than attributing measurement accuracy to the 8-bit ADC alone.
Compliance Information
The supplied verified snippets do not contain an authoritative declaration for this exact MPN. Compliance and qualification must be confirmed from Microchip’s current product documentation.
