PIC16LC67-04I/PQ - 8-bit 4MHz 14KB OTP MCU 44-MQFP | Microchip
Référence : PIC16LC67-04I/PQ ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $11.83 | $11,83 |
| 10 | $10.85 | $108,50 |
| 100 | $9.42 | $942,00 |
| 500 | $8.15 | $4 075,00 |
| 1 000 | $7.05 | $7 050,00 |
PIC16LC67-04I/PQ Présentation
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.
Alternatives de remplacement direct pour PIC16LC67-04I/PQ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC16LC67-04I/PQ (même facteur de forme et même empreinte) — différant par Package, Program Memory Size, Core Architecture, Program Memory Type, Instruction Set.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16LC67-04/PT
✅ Remplacement direct✓ En stock
$6.98 / unité
Voir la fiche technique →PIC16LC67-04I/PT
✅ Remplacement direct✓ En stock
$6.95 / unité
Voir la fiche technique →PIC16C67-04I/PQ
✅ Remplacement direct✓ En stock
$6.1 / unité
Voir la fiche technique →PIC16LC67T-04I/PQ
✅ Remplacement direct✓ En stock
$1.92 / unité
Voir la fiche technique →PIC16F877-04I/PQ
✅ Remplacement direct✓ En stock
$4.35 / unité
Voir la fiche technique →PIC16F877A-I/PQ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16LC67-04I/PQ Valeurs maximales et caractéristiques électriques
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Family | PIC16C |
| Fréquence d'horloge maximale | 4 MHz |
| Program Memory Size | 14 KB (8K x 14) OTP |
| RAM Size | 368 bytes |
| Number of I/O Pins | 33 |
| Boîtier | 44-MQFP (10x10 mm) |
| Type de montage | Surface Mount |
| Operating Voltage Range | 2.5 V to 6.0 V |
| Plage de température de fonctionnement | -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 |
Configuration des broches de PIC16LC67-04I/PQ
| Broche 1 | OSC1/CLKIN — Oscillator input or external clock input |
| Broche 2 | OSC2/CLKOUT — Oscillator output or clock output |
| Broche 3 | MCLR/VPP — Master clear reset or programming voltage input |
| Broche 4 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Broche 5 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Broche 6 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Broche 7 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / voltage reference |
| Broche 8 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Broche 9 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Broche 10 | VSS — Ground reference |
| Broche 11 | VDD — Positive supply voltage |
| Broche 12 | RB0/INT — PORTB bit 0 / external interrupt |
| Broche 13 | RB1 — PORTB bit 1 |
| Broche 14 | RB2 — PORTB bit 2 |
| Broche 15 | RB3/PGM — PORTB bit 3 / low-voltage programming |
| Broche 16 | RB4 — PORTB bit 4 |
| Broche 17 | RB5 — PORTB bit 5 |
| Broche 18 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Broche 19 | RB7/PGD — PORTB bit 7 / ICSP data |
| Broche 20 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Broche 21 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Broche 22 | RC2/CCP1 — PORTC bit 2 / CCP1 output |
| Broche 23 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Broche 24 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Broche 25 | RC5/SDO — PORTC bit 5 / SPI data out |
| Broche 26 | RC6/TX/CK — PORTC bit 6 / USART transmit / USART clock |
| Broche 27 | RC7/RX/DT — PORTC bit 7 / USART receive / USART data |
| Broche 28 | RE0/RD/AN5 — PORTRE bit 0 / parallel port read / analog input 5 |
| Broche 29 | RE1/WR/AN6 — PORTRE bit 1 / parallel port write / analog input 6 |
| Broche 30 | RE2/CS/AN7 — PORTRE bit 2 / parallel port chip select / analog input 7 |
| Broche 31 | VSS — Ground reference |
| Broche 32 | VDD — Positive supply voltage |
| Broche 33 | RF0 — PORTF bit 0 |
| Broche 34 | RF1 — PORTF bit 1 |
| Broche 35 | RF2 — PORTF bit 2 |
| Broche 36 | RF3 — PORTF bit 3 |
| Broche 37 | RF4 — PORTF bit 4 |
| Broche 38 | RF5 — PORTF bit 5 |
| Broche 39 | RF6 — PORTF bit 6 |
| Broche 40 | RF7 — PORTF bit 7 |
| Broche 41 | RG0 — PORTG bit 0 |
| Broche 42 | RG1 — PORTG bit 1 |
| Broche 43 | RG2 — PORTG bit 2 |
| Broche 44 | RG3 — PORTG bit 3 |
Applications typiques
PIC16LC67-04I/PQ convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16LC67-04I/PQ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Low-voltage operation down to 2.5 V (vs PIC16C67-04I/PQ)
- OTP memory security for production (vs PIC16F877-04I/PQ)
- Industrial -40 C to +85 C temperature grade (vs PIC16LC67-04/PT)
Notes de conception
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.
Informations de conformité
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.
