PIC12LCE673-04/P - 8-Bit 4MHz MCU 1.75KB OTP 8-PDIP | Microchip
MPN: PIC12LCE673-04/P ✓ فعالPIC12LCE673-04/P جائزہ
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and peripheral blocks. The PIC12C family uses a Harvard RISC architecture with 33 single-word instructions, delivering 1 µs instruction execution at 4 MHz. As part of the broader microcontroller category, PIC12C devices sit at the entry-level of Microchip's 8-bit portfolio above simpler 5xx parts and below the PIC16F mid-range series, occupying the 'low-pin-count, OTP-programmed, cost-optimised' niche.
Key features include 8-bit real-time counter TMR0 with 8-bit programmable prescaler, Power-On Reset (POR), Device Reset Timer (DRT), Watchdog Timer (WDT) with dedicated on-chip RC oscillator, and selectable oscillator modes (RC, LP, XT, HS, INTOSC). The OTP EPROM provides one-time field programming suitable for production volumes where firmware is fixed and stable. Brown-out Reset and code protection are also supported for reliable field deployment.
Internally, the PIC12LCE673-04/P employs a 14-bit instruction word with single-cycle execution except for program branches (two-cycle). The 8-level hardware stack and 7 special function registers keep the core footprint minimal. The integrated 8-bit A/D converter (where applicable on the CE sibling) and on-chip EEPROM data memory (CE-only) distinguish it from earlier 12C5xx devices. The Harvard bus separates program fetches from data accesses, eliminating Von Neumann bottleneck and enabling deterministic instruction timing suitable for real-time control loops.
Typical applications include low-power battery-operated sensor nodes, automotive body controllers, appliance control boards, IR remote control transmitters, smoke detectors, electronic locks, smart toys, and simple lighting controllers. The wide 2.5V-5.5V supply range and 6 I/O pins make it a strong fit for human-interface and sensing subsystems that previously required multiple discrete components.
When designing with this part, choose the PIC12CE673-04/P variant if non-volatile EEPROM data memory is required for parameter storage. The 'L' low-voltage suffix is essential for 3V-only systems; standard PIC12C673-04/P requires 3.0V-6.0V. PCB layout should minimise noise coupling to the OSC1/OSC2 pins and provide adequate decoupling on VDD/VSS within 25 mm of the package pins.
کے لیے ڈراپ اِن متبادل PIC12LCE673-04/P — 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 PIC12LCE673-04/P (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Timers, Package, Program Memory Type, I/O Pins, Mounting Type.
PIC12CE673-04/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12CE673-10E/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12CE673-10/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12CE674-04/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12CE674-10I/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12LC672-04/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12LCE673-04/P زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Family | PIC® 12C |
| Program Memory | 1.75 KB (1K x 14) OTP |
| RAM | 128 bytes |
| Maximum Clock Speed | 4 MHz |
| Instruction Cycle | 1 µs @ 4 MHz |
| Supply Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 6 |
| Timers | TMR0 (8-bit with 8-bit prescaler), WDT with on-chip RC |
| Instruction Set | 33 single-word instructions |
| Stack Depth | 8 levels (hardware) |
| پیکیج | 8-pin PDIP (0.300 inch / 7.62 mm) |
| ماؤنٹنگ ٹائپ | Through-Hole (DIP) |
| Oscillator Modes | RC, LP, XT, HS, INTOSC |
| Program Memory Type | OTP EPROM (One-Time-Programmable) |
PIC12LCE673-04/P پن کنفیگریشن
| پن 1 | GP2/INT — GPIO / external interrupt input |
| پن 2 | GP3/MCLR/VPP — GPIO / Master Clear (reset) / programming voltage input |
| پن 3 | GP4/T0CKI/OSC2 — GPIO / Timer0 clock input / crystal oscillator output |
| پن 4 | GP5/OSC1/CLKIN — GPIO / crystal oscillator input / external clock input |
| پن 5 | VSS — Ground reference |
| پن 6 | GP0/AN0 — GPIO / analog input channel 0 |
| پن 7 | GP1/AN1/VREF — GPIO / analog input channel 1 / ADC voltage reference input |
| پن 8 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
عام استعمالات
PIC12LCE673-04/P کے لیے موزوں ہے 7 ایپلیکیشنs: Battery-Powered Sensor Node, Automotive Body Control Module, IR Remote Control Transmitter, Smoke Detector / Fire Sensor, Electronic Lock / Access Control, Appliance Control Board, LED Lighting Controller.
Battery-Powered Sensor Node
The PIC12LCE673-04/P is an excellent fit for battery-powered wireless sensor nodes thanks to its 2.5 V minimum supply, allowing direct operation from a single CR2032 lithium coin cell or 2x AA alkaline stack without a boost regulator. Its 6 GPIO pins can drive a low-power RF transmitter (such as an ASK/OOK module), read an analog sensor through a simple RC network, and control an indicator LED - all within $3 BOM cost. The integrated WDT with on-chip RC oscillator (independent of system clock) ensures the MCU can recover from firmware hangs without external components. With 1 µs instruction cycle and 33 RISC instructions, simple duty-cycled firmware (1% active duty cycle) can run for 2-3 years on a 220 mAh coin cell. The OTP memory locks firmware into production-ready state, preventing costly field tampering or firmware drift.
تجویز کردہ
Automotive Body Control Module
In automotive body electronics (window lifts, mirror adjusters, seat controllers, lighting), the PIC12LCE673-04/P serves as a sub-controller for distributed I/O expansion. Its 6 GPIO pins can drive power MOSFETs via gate drivers or read Hall-effect position sensors. The wide 2.5 V-5.5V supply range tolerates 12V battery transients after external regulation. With 1.75 KB OTP, fixed production firmware prevents unauthorized reflashing in safety-relevant subsystems. The PIC12LCE673-04I/P industrial-temperature variant extends operation to -40C to +85C for under-dash and under-hood-near applications. The hardware watchdog timer with dedicated RC oscillator provides a failsafe independent of system clock integrity. Compared to relay-only designs, the MCU enables PWM dimming, soft-start ramps, and fault diagnostics over a single LIN or K-Line bus.
تجویز کردہ
IR Remote Control Transmitter
Consumer IR remote controls for TVs, set-top boxes, audio equipment, and air conditioners are a signature application for the PIC12LCE673-04/P. The 6 GPIO pins are sufficient to scan a 5x5 keypad matrix (5 outputs, 1 input via interrupt) while one dedicated pin drives the IR LED through a transistor. The 1.75 KB OTP holds sophisticated RC5/RC6, SIRC, NEC, or proprietary protocols with full command-set look-up tables. The PIC12C core's 33-instruction RISC set and deterministic timing make PWM/PPM IR carrier generation (typically 36-40 kHz) trivial via TMR0 toggling. Operating from 2.5 V to 5.5 V, the same design works for both 3 V coin-cell remotes and 4.5 V (3x AAA) designs. The low-cost OTP programming is ideal for the consumer-electronics cost-down engineering cycle.
تجویز کردہ
Smoke Detector / Fire Sensor
The PIC12LCE673-04/P is well-suited for residential smoke and CO detector controllers. Its low-voltage operation allows direct 3 V battery backup (typically a 9 V alkaline with simple regulator). The TMR0 timer handles the chirp pattern generation, while one ADC-capable pin reads the photoelectric or ionization chamber signal through an analog front-end. The watchdog timer provides mandatory self-test functionality required by UL 217 / EN 14604 fire safety standards. OTP memory prevents field firmware modification after safety certification, an important regulatory consideration. With only 6 I/O pins the design integrates the piezo buzzer driver, LED status indicator, low-battery test, and hush button in a single compact 8-pin PDIP package. Unit cost stays under $3 even at low volumes.
تجویز کردہ
Electronic Lock / Access Control
For electronic locks, keypad access controllers, and simple RFID reader interfaces, the PIC12LCE673-04/P offers the right balance of capability and cost. The 1.75 KB OTP stores 4-digit PIN codes, lockout state, and tamper counter, while the 6 GPIO pins connect to a 3x4 keypad matrix, magnetic door sensor, relay driver for the solenoid, status LED, and buzzer. Code protection via the CONFIG word prevents reverse-engineering of the access control algorithm - critical for security products. The low-voltage operation enables battery-backed designs that survive 6-12 months on 4x AA cells. Production programming via OTP keeps per-unit cost low for consumer-grade products where secure firmware is needed but field updates are not.
تجویز کردہ
Appliance Control Board
White-goods appliance controllers (rice cookers, fans, washing-machine sub-boards, coffee makers) routinely use the PIC12LCE673-04/P as a low-cost sub-controller or user-interface MCU. The 6 GPIO drive TRIAC interfaces, read temperature sensors (NTC via ADC), control seven-segment or LED indicators, and accept membrane-switch input. Operating from 2.5 V-5.5 V, the same MCU works for both 3.3 V logic and 5 V designs. The OTP memory prevents unauthorized 'speed hack' modifications to motor controllers - a regulatory and brand-protection concern. With 1 µs instruction cycle, the MCU executes PWM fan-speed control, soft-start ramp generation, and timer sequencing in real time without interrupt overhead. The 8-pin PDIP is preferred over SMD for hand-soldered repair in after-market appliance service.
تجویز کردہ
LED Lighting Controller
Low-cost decorative and architectural LED lighting drivers often center on the PIC12LCE673-04/P. The 25 mA source/sink GPIO pins can directly drive small indicator LEDs or interface to external MOSFET drivers for higher-current LED strings. TMR0 generates the PWM dimming waveform, while one pin accepts a 0-10 V analog dimming input or DALI/0-10V digital control signal. The OTP memory prevents after-market 'brightness hack' modifications that could damage LED lifetimes. The 8-pin PDIP is well-suited for through-hole assembly in lighting-fixture junction boxes. Operating from 2.5 V-5.5 V, the same MCU works for both 12 V and 24 V LED driver designs after simple regulator input. The 1.75 KB program memory holds complex color-mixing algorithms for RGBW fixtures in cost-sensitive applications.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC12LCE673-04/P — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC12CE673-04/P | PIC12CE673-10E/P | PIC12CE674-04/P | PIC12CE674-10I/P | PIC12LC672-04/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-PDIP (0.300 in) | 8-PDIP (0.300 in) - same | 8-PDIP (0.300 in) - same | 8-PDIP (0.300 in) - same | 8-PDIP (0.300 in) - same | 8-PDIP (0.300 in) - same |
| Max Clock Speed | 4 MHz | 4 MHz | 10 MHz | 4 MHz | 10 MHz | 4 MHz |
| Program Memory | 1.75 KB OTP | 1.75 KB OTP | 1.75 KB OTP | 3.5 KB OTP (+100%) | 3.5 KB OTP (+100%) | 1.75 KB EPROM (windowed) |
| Data EEPROM | 0 bytes (no EEPROM) | 16 bytes EEPROM | 16 bytes EEPROM | 16 bytes EEPROM | 16 bytes EEPROM | 0 bytes (no EEPROM) |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Supply Voltage | 2.5 V to 5.5 V (L) | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| GPIO Count | 6 | 6 | 6 | 6 | 6 | 6 |
| A/D Converter | 8-bit (4 channels) | 8-bit (4 channels) | 8-bit (4 channels) | 8-bit (4 channels) | 8-bit (4 channels) | None (digital only) |
| Operating Temperature | Commercial 0C to +70C | Commercial 0C to +70C | Industrial -40C to +125C | Commercial 0C to +70C | Industrial -40C to +85C | Commercial 0C to +70C |
اہم امتیازی خصوصیات
- Low-voltage 2.5 V minimum supply enables direct coin-cell operation (بمقابلہStandard PIC12C673 (3.0 V minimum))
- OTP memory locks production firmware against field modification (بمقابلہFlash-based PIC12F675-I/P)
- Integrated 8-bit A/D converter eliminates external ADC chip (بمقابلہPIC12LC672-04/P (no ADC))
ڈیزائن نوٹس
The PIC12LCE673-04/P is specified for 2.5 V to 5.5 V operation. Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 8), with a 10 µF bulk capacitor on the same supply rail if the source impedance is high (battery or long cable). The MCLR/VPP pin (pin 2) requires a 10 kΩ pull-up to VDD for normal operation; during ICSP programming, this pin is driven to ~13 V. Estimated: total quiescent current draw is typically < 1 mA at 4 MHz / 5 V and < 0.4 mA at 4 MHz / 3 V.
Use the 8-pin PDIP land pattern with 2.54 mm (0.100 in) pin pitch. Keep the crystal or resonator within 5 mm of OSC1 (pin 4) and OSC2 (pin 3) to minimise parasitic capacitance that can cause oscillator startup failures at low supply voltages. The VDD/VSS traces should be at least 0.3 mm wide; for production designs running above 4 MHz at 5 V, increasing VDD trace width to 0.5 mm reduces supply droop during GPIO switching events. Keep analog inputs (GP0/GP1) traces short and shielded from digital switching traces to reduce ADC noise coupling.
Three common pitfalls when designing with the PIC12LCE673-04/P: (1) Do NOT select the 'L' variant for 5 V-only systems above 5.5 V - the absolute maximum is 6.5 V and any transient above that damages the device; use the standard PIC12C673 instead. (2) The OTP memory cannot be erased or rewritten - the development cycle must use a windowed PIC12CE673 JW part or simulator before locking production firmware. (3) Brown-out Reset (BOR) must be enabled in the CONFIG word for reliable operation in noisy environments; disabling BOR saves ~50 µA but risks data corruption during supply dips.
تعمیل کی معلومات
Lifecycle stage ACTIVE per DigChip 2026 listing. RoHS/REACH compliance not confirmed in the provided web data; users should verify directly with Microchip product compliance system for the latest environmental certification status.
