PIC16F76-I/SS - 8-Bit 20MHz MCU 14KB Flash 28-SSOP | Microchip
MPN： PIC16F76-I/SS ✓ 啟用中PIC16F76-I/SS 概覽
An 8-bit PIC microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle. PIC16F-series MCUs sit in the mid-range performance tier of the PIC family (PIC10/12/16/18/24/32), positioned for cost-sensitive embedded applications requiring moderate computational throughput, on-chip peripherals, and low power consumption. They bridge the gap between base-level PIC10/12 parts and higher-end PIC18/dsPIC devices.
Key features include 22 digital I/O pins, 5 channels of 8-bit ADC with brown-out reset, two PWM outputs, and 8K x 14 words of self-programmable FLASH program memory. The PIC16F76 also offers an operating voltage range of 2.0V to 5.5V, an industrial temperature grade of -40C to +85C (denoted by the -I suffix), and in-circuit serial programming (ICSP) capability. The 28-SSOP package supports surface-mount assembly with a compact 5.30mm body width.
Architecturally, the PIC16F76 uses a 14-bit instruction word with a 35-instruction RISC set and an 8-level hardware stack, enabling predictable interrupt response and deterministic real-time behavior. Its nanoWatt power management features include multiple oscillator modes (RC, LP, XT, HS), watchdog timer with on-chip RC oscillator, and SLEEP/idle modes drawing microamp-level currents for battery-powered designs.
Typical applications include industrial control systems, sensor signal conditioning, low-cost motor control, HVAC controls, and general-purpose embedded products where on-chip ADC, PWM, and serial communication reduce the bill of materials. The integrated peripherals make it well-suited for automotive body electronics (non-safety) and consumer appliances.
When designing with the PIC16F76, configure the configuration bits (fuses) for the chosen oscillator, brown-out reset threshold, and watchdog behavior before code execution. Decouple VDD with a 100nF ceramic capacitor placed within 5mm of the package pins, and keep the MCLR pull-up close to the ICSP connector to avoid programming failures.
This page synthesizes distributor pricing, drop-in same-package alternatives, application examples, and practical design notes not found in the bare manufacturer datasheet, providing AI-citation-ready engineering context for the PIC16F76-I/SS.
直接替換替代品，適用於 PIC16F76-I/SS — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16F76-I/SS （相同外形與佔位） — 差異在於 Package, Core Architecture, Timers, ADC, CCP Modules.
PIC16F76-E/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC16F767-I/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC16F767-E/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC16F76-I/SS 最大額定值與電氣特性
| Core Architecture | PIC 8-bit RISC (mid-range, 35 instructions) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| RAM | 368 bytes |
| EEPROM | Data EEPROM on-chip (per datasheet) |
| Maximum CPU Frequency | 20 MHz |
| Operating Voltage (VDD) | 2.0 V to 5.5 V |
| Digital I/O Pins | 22 |
| ADC | 8-bit, 5 channels |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Capture/Compare/PWM | 2 modules (CCP) |
| Serial Interfaces | 1x SSP (SPI/I2C), 1x USART (SCI) |
| Brown-out Reset (BOR) | Yes |
| Watchdog Timer | Yes, with on-chip oscillator |
| In-Circuit Serial Programming (ICSP) | Yes |
| 工作溫度範圍 | -40 C to +85 C (Industrial grade) |
| 封裝 | 28-SSOP (5.30 mm body) |
| 安裝類型 | Surface Mount |
| MSL 等級 | MSL1 (per JEDEC J-STD-020) |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC16F76-I/SS 腳位配置
| 腳位 1 | MCLR/VPP — Master Clear (Reset) input / ICSP programming voltage |
| 腳位 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| 腳位 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| 腳位 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| 腳位 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC positive reference |
| 腳位 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| 腳位 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| 腳位 8 | OSC1/CLKIN — Oscillator input / external clock input |
| 腳位 9 | OSC2/CLKOUT — Oscillator output / clock output |
| 腳位 10 | RC0/T1OSCC_OC1 — PORTC bit 0 / Timer1 oscillator / CCP1 output |
| 腳位 11 | RC1/CCP2 — PORTC bit 1 / CCP2 PWM output |
| 腳位 12 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| 腳位 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| 腳位 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| 腳位 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| 腳位 16 | RC6/TX/CK — PORTC bit 6 / USART transmit / clock |
| 腳位 17 | RC7/RX/DT — PORTC bit 7 / USART receive / data |
| 腳位 18 | VSS — Ground reference |
| 腳位 19 | VDD — Positive supply voltage |
| 腳位 20 | RB0/INT — PORTB bit 0 / external interrupt |
| 腳位 21 | RB1 — PORTB bit 1 |
| 腳位 22 | RB2 — PORTB bit 2 |
| 腳位 23 | RB3/PGM — PORTB bit 3 / LVP programming |
| 腳位 24 | RB4 — PORTB bit 4 |
| 腳位 25 | RB5 — PORTB bit 5 |
| 腳位 26 | RB6/PGC — PORTB bit 6 / ICSP clock |
| 腳位 27 | RB7/PGD — PORTB bit 7 / ICSP data |
| 腳位 28 | VSS — Ground reference (secondary) |
典型應用
PIC16F76-I/SS 適用於 6 應用s: Industrial Control Systems, Sensor Signal Conditioning, Low-Cost Motor Control (PWM/H-bridge), HVAC Control and Thermostats, Consumer Appliance Control, Automotive Body Electronics (Non-Safety).
Industrial Control Systems
The PIC16F76-I/SS fits industrial control systems where deterministic 8-bit processing, on-chip ADC, and serial communication reduce BOM cost. With 14KB FLASH, 368B RAM, and a 20MHz CPU clock delivering approximately 5 MIPS, it handles discrete logic, sensor readout, and PID loop execution in PLC-style controllers. The five 8-bit ADC channels interface 4-20mA or 0-10V sensor inputs through external signal conditioning; the USART links to RS-485 transceivers for Modbus RTU fieldbus. Compared with a discrete logic design (74HC-series gates + EEPROM), the integrated MCU eliminates dozens of components. Brown-out reset and watchdog timer ensure safe recovery in 24V industrial bus environments with noisy supplies.
推薦
Sensor Signal Conditioning
For sensor signal conditioning modules, the PIC16F76-I/SS provides local intelligence with its 5-channel 8-bit ADC, USART, and 22 digital I/O in a compact 28-SSOP package. The ADC scans temperature, pressure, or humidity transducers at adequate resolution for HVAC and process control; PWM outputs drive 4-20mA current loops without external DACs. The PIC16F76's nanoWatt technology (sleep current in microamps) suits battery-powered wireless sensor nodes where the MCU sleeps between ADC samples. Compared with bare op-amp signal chains, this integrated approach cuts board area, calibration time, and overall cost. Industrial temperature grade (-40C to +85C) supports outdoor sensor installations.
推薦
Low-Cost Motor Control (PWM/H-bridge)
The PIC16F76-I/SS suits low-cost brushed DC motor and small stepper motor control with its two CCP/PWM modules and 20MHz instruction throughput. PWM outputs drive discrete MOSFET H-bridges for bidirectional motor control, while ADC inputs close the loop on current sensing or back-EMF monitoring. The 14KB FLASH holds commutation tables and PID control code for fans, pumps, and small appliances. The USART enables host communication for speed/torque commands. Compared with dedicated motor controller ASICs, this general-purpose MCU approach costs less and allows field firmware updates. Add external opto-isolation (e.g., MOC3021) when driving AC mains-referenced loads.
推薦
HVAC Control and Thermostats
For HVAC thermostats and zone controllers, the PIC16F76-I/SS offers the right mix of 5 ADC channels (for temperature, humidity, setpoint), PWM outputs (for relay control or TRIAC firing), and serial communication (USART for networked thermostats). The 14KB FLASH stores scheduling algorithms and user preferences in non-volatile EEPROM. Industrial temperature grade supports installation in extreme climates. Compared with mechanical bimetallic thermostats, this MCU solution adds programmability, remote sensing, and energy-saving optimization. Brown-out reset prevents erratic behavior when the HVAC transformer relay switches.
推薦
Consumer Appliance Control
The PIC16F76-I/SS powers control boards in consumer appliances (washing machines, microwave ovens, dishwashers, coffee makers) where its 8-bit core, on-chip ADC, PWM, USART, and compact 28-SSOP package fit cost-sensitive designs. The MCU reads user inputs (buttons, encoders) via digital I/O, drives relays and TRIACs via PWM or GPIO, and times appliance operations from a 20MHz reference. With 14KB FLASH, code space is sufficient for menu state machines, sensor fault detection, and safety interlocks. The -I grade operates from -40C to +85C, covering kitchen and laundry environments. Compared with discrete logic, the integrated MCU simplifies FCC/CE compliance by handling EMI-sensitive timing in software.
推薦
Automotive Body Electronics (Non-Safety)
For non-safety automotive body electronics (interior lighting, seat controllers, mirror adjusters, accessory timers), the PIC16F76-I/SS delivers adequate 8-bit processing in a small 28-SSOP footprint. With 14KB FLASH and 368B RAM, the MCU handles CAN or LIN slave tasks via the USART plus an external transceiver. The 5-channel ADC reads switch positions and potentiometers; PWM drives LED dimming and small DC loads. For safety-critical or AEC-Q100-mandated systems, the automotive-grade PIC16F76 variant or a dsPIC/PIC18 family is required; the PIC16F76-I/SS suits only non-safety body modules. Compared with automotive ASICs, the general-purpose MCU offers faster development and field reprogrammability.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F76-I/SS — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F76-E/SS | PIC16F767-I/SS | PIC16F767-E/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) |
| Flash Program Memory | 14 KB (8K x 14) | 14 KB (same) | 14 KB (same) | 14 KB (same) |
| RAM | 368 bytes | 368 bytes (same) | 368 bytes (same) | 368 bytes (same) |
| ADC Channels | 5 (8-bit) | 5 (8-bit) | 8 (8-bit, +3) | 8 (8-bit, +3) |
| CCP/PWM Modules | 2 | 2 (same) | 2 (same) | 2 (same) |
| USART | 1x USART | 1x USART | 2x USART (+1) | 2x USART (+1) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Single-Unit Price (approx, USD) | 8.50 | 8.50 | 9.10 | 9.10 |
主要差異化特點
- 5-channel 8-bit ADC with dual CCP/PWM in 28-SSOP package (對比PIC16F73-I/SO)
- Extended temperature drop-in compatibility (對比PIC16F76-E/SS)
- Peripheral superset with identical pinout (對比PIC16F767-I/SS)
設計說明
Place a 100nF ceramic decoupling capacitor within 5mm of the VDD pin (pin 19) and a bulk 10uF tantalum or ceramic capacitor near the supply entry point. The PIC16F76 datasheet specifies a 2.0V-5.5V supply range; the brown-out reset (BOR) circuit must be configured to the supply voltage used. For battery-powered designs, leverage the nanoWatt SLEEP mode (typical current in microamps) and use the watchdog timer with on-chip oscillator for periodic wake-up. Decouple both VDD pins on 40-pin variants; the 28-pin device has one VDD (pin 19) and two VSS pins (18, 28).
The 28-SSOP package has a 0.65mm pin pitch and 5.30mm body width; route all signals on the top layer with traces under 0.2mm width to maintain manufacturing tolerances. Keep the MCLR pull-up resistor (typically 10k ohm) close to pin 1 to avoid programming failures. Provide a 6-pin ICSP header (MCLR, VDD, VSS, PGD, PGC, RB3 optional) accessible on the board for production programming. Place the crystal or resonator within 10mm of pins 8 and 9, with short, symmetric traces and a ground guard ring for EMI-sensitive PCB layout.
Configuration bits (fuses) must be set before code execution; common mistakes include leaving the watchdog timer enabled in development (causing unexpected resets) or selecting the wrong oscillator mode (HS vs XT vs LP). The ICSP programming pin RB3 is shared with PGM in low-voltage programming mode - leaving it as a high-impedance input during programming can fail to enter programming mode. The ADC requires a minimum acquisition time; using the internal RC oscillator as ADC clock at high frequencies requires the ADCS_REGN configuration bits to be set correctly. The PIC16F76 datasheet's electrical characteristics section specifies the ADC minimum acquisition time for full 8-bit accuracy.
合規資訊
RoHS-compliant per Microchip product compliance. Lead-free matte-tin plating. Not AEC-Q100 qualified - choose automotive-grade PIC16F variant for in-vehicle designs. Industrial temperature grade -40C to +85C. MSL1 per JEDEC J-STD-020.
