PIC16LC67-04I/PQ - 8-bit 4MHz 14KB OTP MCU 44-MQFP | Microchip
MPN: PIC16LC67-04I/PQ ✗ Cuối đờiPIC16LC67-04I/PQ Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and configurable I/O peripherals. Within the component taxonomy, the PIC16LC67 belongs to the 8-bit microcontroller family, which is itself a branch of the broader microcontroller IC category, sitting beneath embedded processors and the general semiconductor hierarchy. The 'LC' prefix indicates a low-power CMOS variant of the PIC16C architecture, designed for battery-powered and portable applications where active and standby current budgets are critical.
Key features of the PIC16LC67 include an 8-bit Harvard RISC architecture with a reduced instruction set, three timers, two capture/compare/PWM modules, a USART serial interface, and a 10-bit (or 8-bit) analog-to-digital converter depending on silicon revision. The device also supports in-circuit serial programming (ICSP), enabling firmware updates after PCB assembly. The 44-MQFP package provides generous pin count for applications requiring multiple peripheral interfaces simultaneously.
Typical applications include industrial control panels, instrumentation with serial telemetry, low-power sensor interface boards, and embedded control in automotive body electronics. The wide 2.5 V to 6.0 V supply range makes the LC variant suitable for both 3.3 V and 5 V system designs without level translation.
When selecting this MCU, consider that OTP memory requires mask-programmed or windowed EPROM equivalents for production programming; for flash-based migration the PIC16F877 in the same 44-pin footprint is the recommended successor. Designers should also evaluate the LC variant for active-mode current consumption since it differs from the F-series equivalent. Always validate pin compatibility against the published datasheet before PCB redesign, as some PIC16 family members share only pin count but differ in peripheral mapping.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC67-04I/PQ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16LC67-04I/PQ (cùng hình factor và footprint) — khác nhau ở Package, Program Memory Size, Core Architecture, Program Memory Type, Instruction Set.
PIC16LC67-04/PT
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Xem tài liệu →PIC16C67-04I/PQ
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Xem tài liệu →PIC16LC67T-04I/PQ
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Xem tài liệu →PIC16F877-04I/PQ
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Xem tài liệu →PIC16F877A-I/PQ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC67-04I/PQ Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Family | PIC16C |
| Tần số xung maksimum | 4 MHz |
| Program Memory Size | 14 KB (8K x 14) OTP |
| RAM Size | 368 bytes |
| Number of I/O Pins | 33 |
| Hộp | 44-MQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Operating Voltage Range | 2.5 V to 6.0 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Oscillator Type | External |
| Data EEPROM | Not present (OTP only) |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Capture/Compare/PWM | 2 modules |
| Serial Interface | USART |
| ICSP Programming | Yes |
Cấu hình chân PIC16LC67-04I/PQ
| Chân 1 | OSC1/CLKIN — Oscillator input or external clock input |
| Chân 2 | OSC2/CLKOUT — Oscillator output or clock output |
| Chân 3 | MCLR/VPP — Master clear reset or programming voltage input |
| Chân 4 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Chân 5 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Chân 6 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Chân 7 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / voltage reference |
| Chân 8 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 9 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Chân 10 | VSS — Ground reference |
| Chân 11 | VDD — Positive supply voltage |
| Chân 12 | RB0/INT — PORTB bit 0 / external interrupt |
| Chân 13 | RB1 — PORTB bit 1 |
| Chân 14 | RB2 — PORTB bit 2 |
| Chân 15 | RB3/PGM — PORTB bit 3 / low-voltage programming |
| Chân 16 | RB4 — PORTB bit 4 |
| Chân 17 | RB5 — PORTB bit 5 |
| Chân 18 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Chân 19 | RB7/PGD — PORTB bit 7 / ICSP data |
| Chân 20 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Chân 21 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Chân 22 | RC2/CCP1 — PORTC bit 2 / CCP1 output |
| Chân 23 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Chân 24 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Chân 25 | RC5/SDO — PORTC bit 5 / SPI data out |
| Chân 26 | RC6/TX/CK — PORTC bit 6 / USART transmit / USART clock |
| Chân 27 | RC7/RX/DT — PORTC bit 7 / USART receive / USART data |
| Chân 28 | RE0/RD/AN5 — PORTRE bit 0 / parallel port read / analog input 5 |
| Chân 29 | RE1/WR/AN6 — PORTRE bit 1 / parallel port write / analog input 6 |
| Chân 30 | RE2/CS/AN7 — PORTRE bit 2 / parallel port chip select / analog input 7 |
| Chân 31 | VSS — Ground reference |
| Chân 32 | VDD — Positive supply voltage |
| Chân 33 | RF0 — PORTF bit 0 |
| Chân 34 | RF1 — PORTF bit 1 |
| Chân 35 | RF2 — PORTF bit 2 |
| Chân 36 | RF3 — PORTF bit 3 |
| Chân 37 | RF4 — PORTF bit 4 |
| Chân 38 | RF5 — PORTF bit 5 |
| Chân 39 | RF6 — PORTF bit 6 |
| Chân 40 | RF7 — PORTF bit 7 |
| Chân 41 | RG0 — PORTG bit 0 |
| Chân 42 | RG1 — PORTG bit 1 |
| Chân 43 | RG2 — PORTG bit 2 |
| Chân 44 | RG3 — PORTG bit 3 |
Ứng dụng tiêu biểu
PIC16LC67-04I/PQ phù hợp cho 6 Áp dụngs: Industrial Control Panels, Portable Battery-Powered Instruments, Sensor Interface Boards, Automotive Body Electronics, Embedded Instrumentation with Serial Telemetry, Low-Cost Consumer Appliances.
Industrial Control Panels
The PIC16LC67-04I/PQ is well suited for industrial control panels where its 33 GPIO pins, USART interface, and 2.5V to 6.0V supply range simplify integration with 3.3V sensor modules and 5V driver ICs. The wide -40C to +85C industrial temperature grade supports factory-floor deployments, while the 14 KB OTP program memory accommodates scan-loop logic and operator interface routines. Industrial panel designers favor this MCU because its CCP modules can drive PWM-controlled indicators and its 4 MHz clock is sufficient for HMI refresh rates without EMI issues.
Được đề xuất
Portable Battery-Powered Instruments
The PIC16LC67-04I/PQ excels in portable battery-powered instruments because the 'LC' low-voltage CMOS process enables operation down to 2.5V, allowing direct connection to two AA cells (2.4-3.0V) without a boost converter. With 368 bytes of RAM, three timers for low-power duty cycling, and the USART for serial telemetry, the MCU supports multi-channel data logging with sleep-mode current budgets under 1 mA. Designers select the LC variant when the instrument must run months on a single battery and the OTP memory cost saving outweighs field-upgrade limitations.
Được đề xuất
Sensor Interface Boards
For multi-sensor interface boards, the PIC16LC67-04I/PQ provides 33 GPIO pins that can directly sample digital sensors and drive analog front-ends via its PWM modules. The CCP and USART peripherals allow simultaneous capture of pulse-train flowmeters, PWM output to actuator drivers, and RS-485 telemetry to a host controller. The 2.5V to 6.0V supply range means a single board design can accept 3.3V or 5V sensor power rails without level shifters, simplifying the BOM and reducing board cost for high-volume sensor products.
Được đề xuất
Automotive Body Electronics
In automotive body electronics (non-safety), the PIC16LC67-04I/PQ handles HVAC blend-door control, seat-position memory, and lighting PWM where its 33 GPIO and two CCP modules drive multiple brush DC motors or LED arrays simultaneously. While not AEC-Q100 qualified, the industrial -40C to +85C temperature grade and wide supply range tolerate underhood and cabin thermal environments. Automotive body-electronics designers choose this MCU for cost-sensitive applications where the flash-free OTP memory actually improves security against unauthorized firmware cloning.
Được đề xuất
Embedded Instrumentation with Serial Telemetry
The PIC16LC67-04I/PQ is a natural fit for embedded instrumentation requiring serial telemetry, as its hardware USART supports RS-232, RS-485, or simple TTL comms without bit-banging overhead. Combined with its 4 MHz clock (yielding 1 MIPS instruction rate) and 14 KB OTP for instrument code, the MCU can poll sensors, format data packets, and stream to a host at 9600-115200 baud reliably. Laboratory bench instruments and field data loggers use this part to add a low-cost local display and remote reporting channel without complex protocol stacks.
Được đề xuất
Low-Cost Consumer Appliances
Consumer appliance designs (washing machines, microwave ovens, small kitchen appliances) leverage the PIC16LC67-04I/PQ for its 14 KB OTP program memory that locks the final firmware against field tampering, plus its 33 GPIO pins that drive seven-segment displays, keypads, and triac control outputs simultaneously. The 4 MHz instruction rate is more than adequate for scan-loop debounce and timing logic, while the 2.5V to 6.0V supply range supports both 3.3V logic-level and traditional 5V designs. Cost-sensitive appliance makers select this MCU because OTP programming at scale drops the per-unit cost below equivalent flash parts.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC67-04I/PQ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16LC67-04/PT | PIC16LC67-04I/PT | PIC16C67-04I/PQ | PIC16F877-04I/PQ | PIC16F877A-I/PQ |
|---|---|---|---|---|---|---|
| Package | 44-MQFP (10x10 mm) | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | 14 KB (8K x 14) OTP | 14 KB OTP - same | 14 KB OTP - same | 14 KB OTP - same | 8 KB (4K x 14) Flash - different | 14 KB (8K x 14) Flash - same |
| Maximum Clock | 4 MHz | 4 MHz - same | 4 MHz - same | 4 MHz - same | 4 MHz - same | 20 MHz - different |
| Operating Voltage Range | 2.5 V to 6.0 V | 2.5 V to 6.0 V - same | 2.5 V to 6.0 V - same | 4.0 V to 6.0 V - narrower | 4.0 V to 6.0 V - narrower | 4.0 V to 5.5 V - narrower |
| RAM Size | 368 bytes | 368 bytes - same | 368 bytes - same | 368 bytes - same | 368 bytes - same | 368 bytes - same |
| Number of I/O Pins | 33 | 33 - same | 33 - same | 33 - same | 33 - same | 33 - same |
| Operating Temperature | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) - different | -40 C to +85 C - same | -40 C to +85 C - same | -40 C to +85 C - same | -40 C to +85 C - same |
Bảo phân biệt quan trọng
- Low-voltage operation down to 2.5 V (vsPIC16C67-04I/PQ)
- OTP memory security for production (vsPIC16F877-04I/PQ)
- Industrial -40 C to +85 C temperature grade (vsPIC16LC67-04/PT)
Ghi chú thiết kế
The PIC16LC67-04I/PQ operates from 2.5 V to 6.0 V; when designing for 3.3 V systems, ensure upstream regulator tolerance keeps VDD above 2.5 V minimum at all load transients. Add a 0.1 uF ceramic decoupling capacitor close to each VDD/VDD pair (pins 11 and 32) plus a bulk 10 uF electrolytic on the board. For battery applications, validate brown-out voltage thresholds against your LDO/MCP1700 dropout spec at maximum MCU active current (~2 mA at 4 MHz).
Place the 0.1 uF ceramic decoupling capacitor within 5 mm of each VDD/VSS pin pair. Route MCLR/VPP to a dedicated programming header with 10 kΩ pull-up to VDD; do not use the same net for other I/O. The MQFP-44 package has a 0.8 mm pitch which is hand-solderable with fine tip but requires a reflow profile with peak temperature below 245 C per JEDEC J-STD-020. Reserve a small copper pour under the package center to act as a thermal anchor.
OTP program memory cannot be re-programmed in-circuit; once blown, the PIC16LC67-04I/PQ is locked to that firmware image. Build a small engineering prototype using a flash-based equivalent (PIC16F877) for firmware iteration, then commit to OTP only after code is finalized. Also note that the LC variant supports 2.5 V but oscillator start-up time increases at lower VDD; allow up to 1 second of MCLR delay at 2.5 V before code execution begins.
The PIC16LC67-04I/PQ's USART pins (RC6/TX, RC7/RX) drive at CMOS levels with limited slew control; for RS-232 connections above 115200 baud add a MAX232 or MAX3232 line driver. The 33 GPIO pins are not 5 V tolerant when VDD is 3.3 V; always level-shift inputs above VDD+0.3 V. For mixed 3.3 V/5 V designs, route all 5 V I/O through the analog input multiplex path and use the digital-only ports for clean 3.3 V signals.
Thông tin tuân thủ
Lifecycle status NRND (Not Recommended for New Designs). RoHS and REACH compliance data not found in provided web data; consult Microchip product environmental compliance documentation. Not AEC-Q100 qualified.
