PIC16LC67-04I/PT - 8-bit MCU, 14KB OTP, 4MHz, 44-TQFP | Microchip
MPN: PIC16LC67-04I/PT ✗ پایان تولیدPIC16LC67-04I/PT نمای کلی
What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller is a type of MCU whose program memory can be written only once after manufacture, using a PROM-style programming algorithm. OTP MCUs sit between mask-ROM parts (cheapest in volume, but require factory NRE) and Flash-based MCUs (re-programmable, higher cost per bit). They are favored for cost-sensitive, stable-firmware production runs of moderate volume where code changes are rare.
Key features include a fully static CMOS design, wide operating voltage range of 2.5V to 6.0V, integrated power-on reset, watchdog timer, and dual timer/counter modules. The 33 I/O pins can source/sink up to 25 mA each, making the part well-suited to directly drive LEDs, relays, and small solenoids. Industrial temperature grade (-40C to +85C) is denoted by the 'I' suffix.
Technical depth: The PIC16LC67 uses a 14-bit wide instruction word with separate program and data buses, allowing simultaneous instruction fetch and data access. The LC prefix indicates the low-voltage CMOS process variant (versus the standard C variant), enabling operation down to 2.5V. Peripherals include a USART, MSSP (SPI/I2C master-slave), two 8-bit timers with 16-bit mode, and an 8-bit ADC.
Typical applications include industrial control panels, appliance controllers, motor drive front-ends, smart sensors, and embedded data acquisition modules. The combination of low power, ample I/O count, and on-chip peripherals makes it suitable for human-machine interface boards.
When designing with this part, note that OTP memory cannot be field-updated; provision a pre-programmed variant for production. The TQFP-44 footprint is also offered as a 44-MQFP (PQ suffix) - verify pin-out against your PCB land pattern before ordering.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
جایگزین‌های drop-in برای PIC16LC67-04I/PT — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC16LC67-04I/PT (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Core Architecture, Program Memory Size, Operating Temperature, Timers.
PIC16LC67-04/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16F877A-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16F874A-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
PIC18F452-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16F777-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC67-04I/PQ
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC67-04I/PT حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | PIC 8-bit Harvard RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 14 KB (8K x 14) |
| RAM Size | 368 x 8 bytes |
| Maximum CPU Speed | 4 MHz |
| Number of I/O Pins | 33 |
| Operating Voltage Range | 2.5 V to 6.0 V |
| Oscillator Type | External |
| بسته‌بندی / کیس | 44-TQFP (10x10 mm) |
| نوع نصب | Surface Mount |
| دمای کاری | -40C to +85C (Industrial) |
| Peripherals | USART, MSSP (SPI/I2C), 2x Timer, ADC |
| Instruction Set Width | 14-bit |
پیکربندی پین PIC16LC67-04I/PT
| پین 1 | MCLR/VPP — Master Clear (active-low reset) / Programming voltage input |
| پین 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| پین 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| پین 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| پین 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / Voltage reference |
| پین 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| پین 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| پین 8 | RE0/RD/AN5 — PORTE bit 0 / Read control / Analog input 5 |
| پین 9 | RE1/WR/AN6 — PORTE bit 1 / Write control / Analog input 6 |
| پین 10 | RE2/CS/AN7 — PORTE bit 2 / Chip select / Analog input 7 |
| پین 11 | VDD — Positive supply voltage |
| پین 12 | VSS — Ground |
| پین 13 | OSC1/CLKIN — Oscillator input / External clock input |
| پین 14 | OSC2/CLKOUT — Oscillator output / Clock output |
| پین 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| پین 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| پین 17 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| پین 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| پین 19 | RD0/PSP0 — PORTD bit 0 / Parallel slave port bit 0 |
| پین 20 | RD1/PSP1 — PORTD bit 1 / Parallel slave port bit 1 |
| پین 21 | RD2/PSP2 — PORTD bit 2 / Parallel slave port bit 2 |
| پین 22 | RD3/PSP3 — PORTD bit 3 / Parallel slave port bit 3 |
| پین 23 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| پین 24 | RC5/SDO — PORTC bit 5 / SPI data out |
| پین 25 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| پین 26 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| پین 27 | RD4/PSP4 — PORTD bit 4 / Parallel slave port bit 4 |
| پین 28 | RD5/PSP5 — PORTD bit 5 / Parallel slave port bit 5 |
| پین 29 | RD6/PSP6 — PORTD bit 6 / Parallel slave port bit 6 |
| پین 30 | RD7/PSP7 — PORTD bit 7 / Parallel slave port bit 7 |
| پین 31 | VSS — Ground |
| پین 32 | VDD — Positive supply voltage |
| پین 33 | RB0/INT — PORTB bit 0 / External interrupt |
| پین 34 | RB1 — PORTB bit 1 |
| پین 35 | RB2 — PORTB bit 2 |
| پین 36 | RB3/PGM — PORTB bit 3 / Low-voltage programming input |
| پین 37 | RB4 — PORTB bit 4 |
| پین 38 | RB5 — PORTB bit 5 |
| پین 39 | RB6/PGC — PORTB bit 6 / ICSP clock |
| پین 40 | RB7/PGD — PORTB bit 7 / ICSP data |
| پین 41 | NC — Not connected (per datasheet) |
| پین 42 | NC — Not connected (per datasheet) |
| پین 43 | NC — Not connected (per datasheet) |
| پین 44 | NC — Not connected (per datasheet) |
کاربردهای معمول
PIC16LC67-04I/PT مناسب است برای 6 کاربردs: Industrial Control Panels, Appliance Controllers, Motor Drive Front-Ends, Smart Sensor Nodes, Embedded Data Acquisition, Human-Machine Interface Boards.
Industrial Control Panels
The PIC16LC67-04I/PT is well suited to industrial control panels where 33 I/O lines can directly drive LED status indicators, key-switch inputs, and relay coils. The 14KB OTP program memory holds ladder-logic translation tables and HMI state machines, while the on-chip USART links to a remote HMI display. Industrial -40C to +85C temperature grade ensures reliable operation inside unheated enclosures, and the 25 mA sink/source capability eliminates driver transistors for low-current relays.
پیشنهادی
Appliance Controllers
Washing machines, dishwashers, and microwave ovens benefit from the PIC16LC67-04I/PT's combination of OTP cost-effectiveness and ample I/O. The 33 pins handle keypads, seven-segment displays, triac firing, and sensor feedback without external expanders. OTP memory locks the final firmware against accidental field tampering, while the LC process variant keeps standby current low enough for Energy Star-compliant idle power budgets. The MSSP peripheral supports I2C communication with temperature and humidity sensors.
پیشنهادی
Motor Drive Front-Ends
In small BLDC or stepper motor drive boards, the PIC16LC67-04I/PT serves as the supervisory MCU that reads Hall sensors, computes commutation timing, and generates PWM commands to a downstream gate driver. The two on-chip timers (TMR0/TMR1/TMR2) provide the period and duty-cycle registers for PWM generation, while the ADC samples current-sense amplifiers for closed-loop torque control. Although a dsPIC would deliver better DSP performance, the LC67's cost advantage suits cost-sensitive appliance and pump drives.
پیشنهادی
Smart Sensor Nodes
Battery-powered sensor transmitters leverage the PIC16LC67-04I/PT's low-voltage (2.5V) operation and <5 uA SLEEP current to extend coin-cell life into multi-year ranges. The on-chip ADC digitizes sensor outputs while the USART or MSSP forwards data to a radio module. OTP memory prevents accidental field overwrites that could brick the node. Industrial temperature tolerance suits outdoor and HVAC duct installations where ambient temperature swings exceed commercial ranges.
پیشنهادی
Embedded Data Acquisition
Laboratory and process-control DAQ front-ends use the PIC16LC67-04I/PT's on-chip ADC and USART to digitize analog signals and stream them over RS-232/RS-485 to a host PC. The 368 bytes of RAM buffer short acquisition bursts, and the MSSP can address external SPI flash for long-term logging. The industrial temperature grade supports factory-floor and outdoor cabinet installations. For higher resolution, migrate to the PIC16F877A variant which offers a 10-bit ADC.
پیشنهادی
Human-Machine Interface Boards
HMI boards for fitness equipment, medical instruments, and POS terminals benefit from the PIC16LC67-04I/PT's 33 I/O count, which directly scans 4x4 keypads and drives character LCDs without external logic. OTP memory locks the final UI firmware against field tampering, an important consideration for regulated medical and point-of-sale equipment. The USART bridges to a host processor while the MSSP drives LED matrix displays. Industrial temperature grade meets IEC 60068 environmental stress requirements.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC16LC67-04I/PT — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC16LC67-04/PT | PIC16F877A-I/PT | PIC16F874A-I/PT | PIC16F777-I/PT | PIC16LC67-04I/PQ |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-MQFP (10x10) - different land pattern |
| Program Memory Type | OTP 14KB (8K x 14) | OTP 14KB | Flash 14KB | Flash 7KB | Flash 14KB | OTP 14KB |
| Maximum CPU Speed | 4 MHz | 4 MHz | 20 MHz | 20 MHz | 20 MHz | 4 MHz |
| Number of I/O | 33 | 33 | 33 | 33 | 36 | 33 |
| Operating Voltage | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.5 V to 6.0 V |
| Temperature Grade | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| ADC | 5-ch 8-bit | 5-ch 8-bit | 8-ch 10-bit | 8-ch 10-bit | 14-ch 10-bit | 5-ch 8-bit |
تفاوت‌های کلیدی
- OTP memory for locked production firmware (در مقابلPIC16F877A-I/PT)
- Wide 2.5V to 6.0V operating range (در مقابلPIC16C67 (standard process variant))
- Industrial -40C to +85C temperature grade (در مقابلPIC16LC67-04/PT (commercial 0C to +70C))
- Direct LED drive at 25 mA per pin (در مقابلSmaller-pin PIC16LC54A-04/P)
یادداشت‌های طراحی
The PIC16LC67-04I/PT operates from 2.5V to 6.0V; place a 100 nF ceramic decoupling capacitor as close as possible to both VDD pins (11 and 32) and a bulk 10 uF tantalum or aluminum capacitor near the supply entry. The 'LC' process variant draws less active current than the 'C' variant at the same clock speed, but the LC67 cannot tolerate >6.0V on VDD. For battery applications, use the SLEEP instruction with the watchdog timer enabled to achieve typical quiescent current below 5 uA at 3V per the family datasheet.
The 44-pin TQFP package has a 0.8 mm lead pitch - use a land pattern that exposes the leads by at least 0.3 mm on each side for reliable hand-solder rework. Keep clock traces (OSC1/OSC2) short and shield them with a ground guard ring to reduce EMI susceptibility. The exposed thermal pad on TQFP-44 is electrically floating per the PIC16C6X family datasheet - it may be soldered to the PCB for thermal dissipation but should not be connected to VDD or VSS to avoid ground-loop noise injection.
Do not confuse the 44-TQFP (PT suffix) with the 44-MQFP (PQ suffix) package - both share 44 pins and similar body size, but the lead pitch and land pattern differ between TQFP and MQFP footprints. Always verify your PCB land pattern before ordering. Also note that OTP memory cannot be erased or rewritten; once a programming error is made, the device is scrap. Microchip recommends verifying code on a Flash-based PIC16F877A emulator first, then committing the final firmware image to OTP parts.
When designing the reset circuit, MCLR (pin 1) requires a 10 kohm pull-up to VDD and, for noisy environments, a 100 nF capacitor to ground to filter transients. The on-chip power-on reset and brown-out detector (where implemented) supplement external reset circuitry but should not be the sole protection in industrial installations. The ICSP pins RB6/PGC (pin 39) and RB7/PGD (pin 40) must not be pulled low at power-up - they have weak internal pull-ups but may require external 10 kohm pull-ups if exposed to capacitive loading.
اطلاعات انطباق
RoHS, REACH, lead-free and halogen-free status were not provided in the verified web data and are marked as [DATA_NEEDED] in the specs array. AEC-Q100 is not applicable because the part is a commercial/industrial-grade MCU without automotive qualification. Engineers should request a material declaration from Microchip's product compliance team before deploying in regulated environments.