PIC16F876A-I/SS - 8-Bit 20MHz 14KB MCU 28-SSOP | Microchip
MPN: PIC16F876A-I/SS ✓ فعالPIC16F876A-I/SS جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash), data memory (RAM), and a rich set of peripherals (timers, ADC, communication ports, GPIO). Within the broader taxonomy, the PIC16F876A belongs to PIC16 family -> PIC16F mid-range 8-bit MCU -> flash MCU -> microcontroller -> semiconductor IC. Mid-range PIC16 MCUs are widely recognized for their 35-instruction RISC architecture, deterministic instruction execution, and ease of programming in both C and assembly.
Key features include 22 digital I/O pins, five 10-bit ADC channels, two analog comparators, two capture/compare/PWM modules, a USART port, and a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C. On-chip in-circuit debug (ICD) and self-programming capability allow field upgrades without external programmers. The Harvard memory architecture separates program and data buses, enabling simultaneous fetch and execute for deterministic real-time control.
Typical applications include industrial sensor interfacing, low-cost motor control, automotive AC diagnostics, hobby robotics, and battery-powered Smart Sensing applications. The 5-channel 10-bit ADC allows direct connection to temperature sensors.
When designing with the PIC16F876A-I/SS, pay attention to supply decoupling and in-circuit serial programming (ICSP) pin allocation to avoid conflicting with target application I/O. The device operates from 2.0 V to 5.5 V.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on individual distributor product pages.
کے لیے ڈراپ اِن متبادل PIC16F876A-I/SS — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16F876A-I/SS (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Timers, Core Architecture, ADC, Operating Temperature.
PIC16F876A-E/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F876A-I/SS زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC16 mid-range 8-bit RISC |
| Maximum CPU Frequency | 20 MHz (200 ns instruction cycle) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 368 bytes |
| Data EEPROM | 256 bytes |
| Instruction Set | 35 single-word instructions |
| Operating Voltage Range | 2.0 V to 5.5 V |
| Digital I/O Pins | 22 |
| ADC | 5 channels x 10-bit |
| Analog Comparators | 2 |
| CCP/PWM Modules | 2 |
| Serial Interfaces | USART + MSSP (SPI / I2C) |
| Timers | 3 (TMR0, TMR1, TMR2) |
| Self-Programming / ICD | Yes (In-Circuit Debug + self-programming) |
| آپریٹنگ درجہ حرارت | -40C to +85C (industrial, -I grade) |
| پیکیج | 28-pin SSOP (5.30 mm body) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| RoHS اسٹیٹس | Compliant |
PIC16F876A-I/SS پن کنفیگریشن
| پن 1 | MCLR/Vpp — Master Clear (reset) input / programming voltage |
| پن 2 | RA0/AN0 — Digital I/O / analog input channel 0 |
| پن 3 | RA1/AN1 — Digital I/O / analog input channel 1 |
| پن 4 | RA2/AN2/CVREF — Digital I/O / analog input 2 / comparator reference |
| پن 5 | RA3/AN3/VREF+ — Digital I/O / analog input 3 / ADC positive reference |
| پن 6 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| پن 7 | RA5/AN4/SS — Digital I/O / analog input 4 / SPI slave select |
| پن 8 | OSC1/CLKIN — Crystal oscillator pin 1 / external clock input |
| پن 9 | OSC2/CLKOUT — Crystal oscillator pin 2 / clock output |
| پن 10 | RC0/T1OSO — Digital I/O / Timer1 oscillator output |
| پن 11 | RC1/T1OSI — Digital I/O / Timer1 oscillator input |
| پن 12 | RC2/CCP1 — Digital I/O / Capture/Compare/PWM 1 |
| پن 13 | RC3/SCK/SCL — Digital I/O / SPI clock / I2C clock |
| پن 14 | RC4/SDI/SDA — Digital I/O / SPI data in / I2C data |
| پن 15 | RC5/SDO — Digital I/O / SPI data out |
| پن 16 | RC6/TX/CK — Digital I/O / USART TX / USART clock |
| پن 17 | RC7/RX/DT — Digital I/O / USART RX / USART data |
| پن 18 | GND — Ground reference |
| پن 19 | RD0 — Digital I/O port D bit 0 |
| پن 20 | RD1 — Digital I/O port D bit 1 |
| پن 21 | RD2 — Digital I/O port D bit 2 |
| پن 22 | RD3 — Digital I/O port D bit 3 |
| پن 23 | RC4/C2OUT — Digital I/O port C bit 4 / comparator 2 output |
| پن 24 | RC5/C1OUT — Digital I/O port C bit 5 / comparator 1 output |
| پن 25 | RB0/INT — Digital I/O port B bit 0 / external interrupt |
| پن 26 | RB1 — Digital I/O port B bit 1 |
| پن 27 | RB2 — Digital I/O port B bit 2 |
| پن 28 | VDD — Positive supply (2.0 V to 5.5 V) |
عام استعمالات
PIC16F876A-I/SS کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Sensor Interface, Low-Cost Motor Control (BLDC, Stepper), Hobby Robotics and Educational Kits, Battery-Powered Smart Sensor Nodes, Automotive Body Electronics (Non-Safety), White Goods and Appliance Control.
Industrial Sensor Interface
The PIC16F876A-I/SS is well suited to industrial sensor interface boards reading 4-20 mA loops, thermistors, and 0-10 V signals via its 10-bit ADC. The 22 digital I/O pins directly drive indicator LEDs, relay coils, and optocouplers without external buffers, while the 2.0 V to 5.5 V supply accommodates both 3.3 V sensor rails and legacy 5 V control logic. Five ADC channels multiplex multiple analog inputs on a single MCU.
تجویز کردہ
Low-Cost Motor Control (BLDC, Stepper)
With two CCP/PWM modules and 22 GPIO pins, the PIC16F876A-I/SS can drive a single low-power brushed DC motor, a small stepper, or sensorless BLDC motor with back-EMF sensing on a single chip. The 20 MHz clock provides a 50 ns PWM resolution at 50 kHz switching frequency for smooth torque control. Two analog comparators enable hardware overcurrent protection without software latency.
تجویز کردہ
Hobby Robotics and Educational Kits
The PIC16F876A-I/SS is a workhorse in hobby robotics: 22 I/O drives servos and sensors, the USART connects to Bluetooth/WiFi modules for remote control, and the ICD port allows in-circuit debug with a PICkit 3 programmer. The 35-instruction RISC architecture is easy to teach in C or assembly, making it popular in undergraduate embedded systems courses and maker projects.
تجویز کردہ
Battery-Powered Smart Sensor Nodes
The PIC16F876A-I/SS supports low-power sleep with peripherals running, allowing multi-year battery life in remote sensor nodes transmitting over SPI or I2C. The 256-byte EEPROM stores calibration constants and node IDs non-volatilely, while the self-programming feature enables Over-The-Air firmware updates via a companion radio module. Industrial temperature rating suits outdoor and industrial deployments.
تجویز کردہ
Automotive Body Electronics (Non-Safety)
Although not AEC-Q100 qualified, the PIC16F876A-I/SS is widely used in non-safety automotive body applications such as interior lighting controllers, HVAC auxiliaries, and seat controllers where automotive-grade qualification is not mandated. The wide 2.0 V to 5.5 V supply tolerates load-dump and cranking transients when paired with proper TVS protection. The 256-byte EEPROM retains user settings across battery disconnects.
تجویز کردہ
White Goods and Appliance Control
The PIC16F876A-I/SS is used in washing machines, dishwashers, refrigerators, and microwave ovens for user interface, timing, and motor control. The two CCP/PWM modules drive displays and buzzers, the 22 I/O pins interface with keypads and rotary encoders, and the 5-channel ADC reads temperature and humidity sensors. In-circuit debug simplifies field service and firmware updates.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16F876A-I/SS — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F876A-E/SS | PIC16F876A-I/SO |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-28 (5.30 mm) | SSOP-28 (5.30 mm) - same footprint | SOIC-28 (7.50 mm) - DIFFERENT footprint |
| Pin Count | 28 | 28 - same | 28 - same |
| Core / Architecture | PIC16 mid-range 8-bit | PIC16 mid-range 8-bit - identical | PIC16 mid-range 8-bit - identical |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz |
| Flash Program Memory | 14 KB | 14 KB | 14 KB |
| SRAM | 368 bytes | 368 bytes | 368 bytes |
| EEPROM | 256 bytes | 256 bytes | 256 bytes |
| Operating Temperature | -40C to +85C (industrial) | -40C to +125C (extended) | -40C to +85C (industrial) |
اہم امتیازی خصوصیات
- Wider operating temperature range than -I grade (بمقابلہPIC16F876A-I/SO)
- Smaller PCB footprint in same pinout (بمقابلہPIC16F876A-I/SO)
ڈیزائن نوٹس
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 28) of the PIC16F876A-I/SS, with a 10 uF bulk capacitor on the main supply rail. For ICSP programming, ensure MCLR/Vpp (pin 1) has its own 10 kohm pull-up to VDD and a 100 nF cap to ground to suppress programming noise. Operating voltage range is 2.0 V to 5.5 V; do not exceed 5.5 V absolute maximum.
Keep the crystal or external clock traces (OSC1/OSC2, pins 8-9) short and surrounded by a ground pour to minimize EMI and clock jitter. If using the internal RC oscillator instead, leave OSC1/OSC2 as GPIO (RA6/RA7 do not exist on 28-pin variants - use RA4/OSC2 only on 40-pin packages). Route sensitive analog signals (AN0-AN4) away from digital switching traces.
Do not confuse the PIC16F876A (this enhanced part) with the legacy PIC16F876 - the older part has different memory architecture and fewer peripherals. Also note that the 28-pin SSOP pinout differs from 40-pin DIP variants; pin numbers 23-27 are remapped to port C functions (C2OUT, C1OUT, RB0-RB2) on the SSOP, not to port D bits. Always consult the datasheet pinout for your specific package.
تعمیل کی معلومات
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - do not use for safety-critical automotive applications without further qualification.
