PIC12F675-E/SN - 8-Bit 20MHz 1.75KB Flash MCU SOIC-8 | Microchip
MPN: PIC12F675-E/SN ✓ فعالPIC12F675-E/SN جائزہ
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals around an 8-bit data bus. The PIC12F675 belongs to the PIC10/12/16 mid-range family of microcontrollers -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Microchip's PIC architecture uses a Harvard RISC design with only 35 single-word instructions, enabling 200ns instruction execution at 20MHz. This combination of compact code density, deterministic timing, and self-contained peripherals makes the PIC12F675 a reference baseline for cost-sensitive embedded control in appliance, sensor, and lighting applications.
Key features of the PIC12F675-E/SN include 4 channels of 10-bit ADC with voltage reference, one analog comparator with programmable on-chip reference, an internal 4MHz oscillator (calibrated to ±1%), an internal 20MHz RC oscillator option, an enhanced universal synchronous/asynchronous receiver-transmitter (EUSART) for serial communication, and in-circuit serial programming (ICSP) for field-upgradeable firmware. The 'E' suffix denotes the extended industrial temperature range of -40C to +125C, which is critical for outdoor, automotive under-hood, and industrial environments.
Architecturally, the PIC12F675 uses a 14-bit wide instruction word with single-cycle execution except for program branches (two cycles). The Flash program memory is rated for 100,000 erase/write cycles and EEPROM data memory for 1,000,000 cycles, supporting firmware that stores calibration, configuration, or runtime counters in non-volatile memory. The device's nanoWatt power management suite includes multiple power-managed operating modes (Run, Idle, Sleep) and wake-on-change I/O to minimize quiescent current in battery-powered designs.
Typical applications include PIR motion sensor signal conditioning, LED lighting controllers, battery chargers, smart sensor nodes, fan controllers, smoke detectors, and simple user-interface controllers (button + LED, I2C slave). The on-chip comparator and ADC enable direct interfacing with analog sensors (temperature, light, gas), eliminating the need for external signal conditioning and shrinking the BOM in space-constrained designs.
A primary design consideration is the supply voltage: the PIC12F675-E/SN is rated 2.0V to 5.5V; for designs that need operation below 2.0V or that require higher ADC resolution, consider the PIC12F683 (10-bit ADC, more memory) or PIC12F1840 (7-bit DAC, more peripherals) as functional upgrades that retain the 8-pin SOIC footprint.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
کے لیے ڈراپ اِن متبادل PIC12F675-E/SN — 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 PIC12F675-E/SN (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Internal Oscillator, Timers, Operating Temperature, ADC.
PIC12F675-I/SN
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12F675T-E/SN
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12F683-E/SN
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC12F615-E/SN
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12F629-E/SN
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12F509-E/SN
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12F675-E/SN زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC 8-bit RISC (Harvard) |
| CPU Bit Width | 8-bit |
| Instruction Set Width | 14-bit |
| Number of Instructions | 35 single-word |
| Maximum CPU Frequency | 20 MHz |
| Instruction Execution Time | 200 ns at 20 MHz |
| Flash Program Memory | 1.75 KB (1K x 14 words) |
| SRAM Data Memory | 64 bytes |
| EEPROM Data Memory | 128 bytes |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| Operating Temperature (E suffix) | -40 C to +125 C |
| I/O Pins (GPIO) | 6 |
| ADC | 10-bit, 4 channels |
| Comparators | 1 analog comparator |
| Internal Oscillator | 4 MHz (calibrated to +/-1%) |
| Communication | EUSART, ICSP |
| پیکیج | 8-pin SOIC (SN), 3.90 mm body width |
| ماؤنٹنگ ٹائپ | Surface Mount |
| RoHS اسٹیٹس | Compliant |
| Lead-Free | Yes |
PIC12F675-E/SN پن کنفیگریشن
| پن 1 | VDD — Positive supply voltage (2.0V to 5.5V) |
| پن 2 | GP5/T1CKI/OSC1/CLKIN — General-purpose I/O / Timer1 clock input / crystal oscillator input / external clock input |
| پن 3 | GP4/AN3/T1G/OSC2/CLKOUT — General-purpose I/O / ADC channel 3 / Timer1 gate / crystal oscillator output / clock out |
| پن 4 | GP3/MCLR/VPP — General-purpose input only / Master Clear reset / programming voltage input |
| پن 5 | GP2/AN2/T0CKI/INT/COUT/CCP1 — General-purpose I/O / ADC channel 2 / Timer0 clock input / external interrupt / comparator output / CCP1 |
| پن 6 | GP1/AN1/CIN-/VREF/ICSPCLK — General-purpose I/O / ADC channel 1 / comparator inverting input / voltage reference / ICSP clock |
| پن 7 | GP0/AN0/CIN+/ICSPDAT/ULPWU — General-purpose I/O / ADC channel 0 / comparator non-inverting input / ICSP data / ultra-low-power wake-up |
| پن 8 | VSS — Ground reference |
عام استعمالات
PIC12F675-E/SN کے لیے موزوں ہے 6 ایپلیکیشنs: PIR Motion Sensor Controller, LED Lighting and Dimmer Controller, Battery Charger / NiMH Charge Controller, Industrial Sensor Signal Conditioning, Smoke and CO Detector Controller, Smart Home Sensor Node (ZigBee/Wi-Fi Bridge).
PIR Motion Sensor Controller
The PIC12F675-E/SN is widely deployed as the signal-processing MCU for passive infrared (PIR) motion detectors used in security alarms and automatic lighting. The on-chip analog comparator directly interfaces the PIR sensor's analog output without external op-amps, while the 10-bit ADC reads ambient light and temperature compensation sensors. The internal 4MHz oscillator eliminates external crystals, reducing BOM count. EUSART and GPx interrupts support wired/wireless alarm panels. The E temp grade (-40C to +125C) ensures operation in outdoor enclosures where temperatures exceed 85C in direct sun.
تجویز کردہ
LED Lighting and Dimmer Controller
The PIC12F675-E/SN drives dimmable LED lamps, RGB accent lighting, and small switching power supplies. The PWM module plus 10-bit ADC allows closed-loop current sensing for constant-brightness LED control across temperature. The internal oscillator and 8-pin SOIC enable ultra-compact driver PCBs for GU10/MR16 retrofit lamps where height below 12mm is required. The 2.0V-5.5V VDD range accommodates both 3.3V and 5V supply architectures, while the 6 GPIO pins handle TRIAC phase control or MOSFET gate driving.
تجویز کردہ
Battery Charger / NiMH Charge Controller
For consumer-grade battery chargers (NiMH, single-cell Li-ion), the PIC12F675-E/SN provides a compact, low-cost solution. The 10-bit ADC samples battery voltage and charge current via a sense resistor, while the on-chip comparator terminates the charge with delta-V detection for NiMH packs. EEPROM stores charge profiles for multiple battery chemistries. The internal 4MHz calibrated oscillator and 35-instruction PIC RISC architecture minimize power draw, extending charger standby time. The E temp range is required for chargers in warm enclosed cabinets.
تجویز کردہ
Industrial Sensor Signal Conditioning
In industrial 4-20mA loop-powered sensor transmitters, the PIC12F675-E/SN reads sensor analog signals, applies linearization or temperature compensation, and outputs a calibrated current or PWM signal. The 10-bit ADC is sufficient for thermocouple cold-junction compensation in Class B industrial instrumentation, and the internal voltage reference provides stable ADC conversions across the -40C to +125C range. The 8-pin SOIC supports through-hole-fitted designs in industrial sensor housings, while the 2.0V minimum VDD allows operation from 3.3V isolated supplies.
تجویز کردہ
Smoke and CO Detector Controller
The PIC12F675-E/SN is a common solution in residential smoke detectors and combination smoke/CO alarms. The 10-bit ADC reads the photoelectric or ionization chamber output, while the analog comparator monitors the CO sensor electrochemical cell voltage for low-battery and end-of-life indicators. The PIC12F675's low Sleep current (nanoWatt) extends the detector's 10-year battery life, and the 128-byte EEPROM stores last-test timestamp and alarm history. The 'E' temperature range handles detector housing temperatures near fire alarms (85C+).
تجویز کردہ
Smart Home Sensor Node (ZigBee/Wi-Fi Bridge)
As a low-cost companion controller, the PIC12F675-E/SN handles button input, LED status indication, and basic sensor I/O in ZigBee or Wi-Fi smart-home devices, offloading these tasks from a higher-cost host MCU. The 6 GPIO pins drive multi-button capacitive touch panels via the mTouch peripheral, and the 10-bit ADC reads analog sensors (temperature, light, humidity) before serial transmission to the host. The 2.0-5.5V VDD range supports coin-cell and lithium battery packs, while E temp grade ensures outdoor sensor operation.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC12F675-E/SN — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC12F675-I/SN | PIC12F675T-E/SN | PIC12F683-E/SN | PIC12F615-E/SN |
|---|---|---|---|---|---|
| Package | SOIC-8 (SN) | SOIC-8 (SN) - same | SOIC-8 (SN) - same | SOIC-8 (SN) - same | SOIC-8 (SN) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 1.75 KB | 1.75 KB | 1.75 KB | 2 KB | 1 KB |
| SRAM | 64 bytes | 64 bytes | 64 bytes | 128 bytes | 48 bytes |
| EEPROM | 128 bytes | 128 bytes | 128 bytes | 256 bytes | 0 bytes (none) |
| ADC | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels |
| Comparator | 1 analog comparator | 1 | 1 | 1 | 0 (none) |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| Supply Voltage | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V |
اہم امتیازی خصوصیات
- Extended industrial temperature grade for harsh environments (بمقابلہPIC12F675-I/SN)
- On-chip 10-bit ADC with 4 input channels (بمقابلہPIC12F615-E/SN)
- 128-byte EEPROM for non-volatile data storage (بمقابلہPIC12F615-E/SN)
ڈیزائن نوٹس
The PIC12F675-E/SN supports VDD from 2.0V to 5.5V. Add a 100 nF decoupling capacitor as close as possible to VDD (pin 1) and VSS (pin 8) to suppress digital switching noise from corrupting the ADC reference. For battery-powered designs, place the MCU in Sleep mode with wake-on-change interrupt; the PIC12F675 nanoWatt Sleep current is sub-microampere, enabling multi-year coin-cell life in sensor applications.
Route the analog signals (AN0-AN3, CIN+, CIN-) as short and direct traces away from digital switching lines (CLKOUT, OSC2). Use a star-ground topology with the analog and digital grounds joined at a single point near VSS pin 8. Place the external voltage reference bypass capacitor (if used) within 5mm of the VREF pin to minimize reference noise pickup.
The 10-bit ADC achieves +/-1 LSB INL only with a stable VDD and proper acquisition time. Configure ADC acquisition time to at least 4 us in software for high-impedance analog sources. Use the internal 4 MHz oscillator for low-speed ADC; for demanding 10-bit conversions across -40C to +125C, average 16 samples to suppress thermal noise.
GP3 (pin 4) is input-only; do not configure it as output. The MCLR function on GP3 requires a 10 kohm pull-up to VDD; failure to include the pull-up prevents reliable reset during power-up. When using ICSP, isolate the MCLR/GP3 pin from strong pull-down external circuits (such as reset supervisors) to avoid programming failures.
تعمیل کی معلومات
RoHS and REACH compliant per Microchip product page. Lead-free reflow-compatible. The PIC12F675 family is not AEC-Q100 qualified; for AEC-Q100 automotive, consider PIC12F615 automotive grades or PIC16F18xxx automotive variants with same SOIC-8 footprint.
