PIC16LC64AT-04I/PQ - 8-Bit PIC MCU, 4MHz, 3.5KB OTP, 44-MQFP
MPN: PIC16LC64AT-04I/PQ ✗ پایان تولیدPIC16LC64AT-04I/PQ نمای کلی
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash/OTP), data memory (RAM), and peripheral interfaces on one die. Within the broader taxonomy, the PIC16LC64A belongs to the PIC16 mid-range family -> PIC16C sub-family -> OTP-based PIC16C6X series -> PIC16LC6X low-voltage CMOS series -> 8-bit microcontroller -> microcontroller unit -> embedded controller -> semiconductor IC. The PIC architecture is a Harvard RISC design with 35 single-word instructions and single-cycle execution (except program branches which take two cycles).
Key features include 128 bytes of RAM, 33 digital I/O pins, integrated peripherals such as PWM modules, Watchdog Timer (WDT), Brown-out Reset (BOR), Power-on Reset (POR), a synchronous serial port (SSP) supporting SPI/I2C, and a capture/compare/PWM (CCP) module. The core delivers deterministic 4MHz operation at 3.0V-5.5V, suitable for low-power battery-fed designs and industrial control loops. The 44-MQFP package provides compact board area while exposing the full peripheral set through dedicated pins.
The PIC16LC64A uses a modified Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and data access. Its CMOS process and static design allow operation down to DC clock frequencies, and the integrated oscillator supports crystal, resonator, or external clock sources. The OTP program memory supports one-time programming, making this part cost-optimized for high-volume production where firmware is finalized.
Typical applications include industrial automation controllers, sensor interface modules, motor control peripherals, low-power consumer appliances, and embedded control subsystems requiring a low pin count with mid-range analog/digital integration. The wide operating voltage and industrial temperature grade suit automotive under-hood and factory-floor installations.
When designing with this MCU, ensure the configuration bits are set correctly to select the oscillator mode and disable unneeded peripherals to minimize quiescent current. The OTP memory is one-time programmable, so firmware must be fully validated before committing to production.
This page synthesizes distributor pricing, lifecycle status, drop-in alternatives within the 44-MQFP footprint, and practical engineering guidance not consolidated in the manufacturer datasheet alone.
جایگزین‌های drop-in برای PIC16LC64AT-04I/PQ — 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 PIC16LC64AT-04I/PQ (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Program Memory Size, Program Memory Type, RAM Size, Instruction Set.
PIC16LC64A-04I/PQ
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC64AT-04I/L
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC64AT-04/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC63A-04I/SO
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC62A-04I/SO
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC64AT-04I/PQ حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | PIC 8-bit RISC |
| Core Size | 8-bit |
| Series | PIC 16C (PIC16LC64A family) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 x 8 bytes |
| Maximum Clock Speed | 4 MHz |
| Supply Voltage Range | 3.0 V to 5.5 V |
| Number of I/O Pins | 33 |
| Package Type | 44-MQFP (10x10 mm) |
| نوع نصب | Surface Mount |
| دمای کاری | -40C to +85C (Industrial) |
| Peripherals | Brown-out Detect/Reset, PWM, WDT, POR, SSP (SPI/I2C) |
| Instruction Set | 35 single-word instructions |
| Connectivity | I2C, SPI |
پیکربندی پین PIC16LC64AT-04I/PQ
| پین 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| پین 2 | RA0/AN0 — Port A bit 0 / analog input 0 |
| پین 3 | RA1/AN1 — Port A bit 1 / analog input 1 |
| پین 4 | RA2/AN2 — Port A bit 2 / analog input 2 |
| پین 5 | RA3/AN3/VREF — Port A bit 3 / analog input 3 / voltage reference |
| پین 6 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| پین 7 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| پین 8 | RE0/RD/AN5 — Port E bit 0 / parallel port read / analog input 5 |
| پین 9 | RE1/WR/AN6 — Port E bit 1 / parallel port write / analog input 6 |
| پین 10 | RE2/CS/AN7 — Port E bit 2 / parallel port chip select / analog input 7 |
| پین 11 | VDD — Positive supply voltage (3.0V-5.5V) |
| پین 12 | VSS — Ground reference |
| پین 13 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| پین 14 | OSC2/CLKOUT — Crystal oscillator output / clock output |
| پین 15 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer 1 oscillator output / Timer 1 clock input |
| پین 16 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer 1 oscillator input / CCP2 |
| پین 17 | RC2/CCP1 — Port C bit 2 / Capture/Compare/PWM 1 |
| پین 18 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| پین 19 | RD0/PSP0 — Port D bit 0 / parallel slave port bit 0 |
| پین 20 | RD1/PSP1 — Port D bit 1 / parallel slave port bit 1 |
| پین 21 | RD2/PSP2 — Port D bit 2 / parallel slave port bit 2 |
| پین 22 | RD3/PSP3 — Port D bit 3 / parallel slave port bit 3 |
| پین 23 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| پین 24 | RC5/SDO — Port C bit 5 / SPI data out |
| پین 25 | RC6/TX/CK — Port C bit 6 / USART transmit / USART clock |
| پین 26 | RC7/RX/DT — Port C bit 7 / USART receive / USART data |
| پین 27 | RD4/PSP4 — Port D bit 4 / parallel slave port bit 4 |
| پین 28 | RD5/PSP5 — Port D bit 5 / parallel slave port bit 5 |
| پین 29 | RD6/PSP6 — Port D bit 6 / parallel slave port bit 6 |
| پین 30 | RD7/PSP7 — Port D bit 7 / parallel slave port bit 7 |
| پین 31 | VSS — Ground reference |
| پین 32 | VDD — Positive supply voltage |
| پین 33 | RB0/INT — Port B bit 0 / external interrupt |
| پین 34 | RB1 — Port B bit 1 |
| پین 35 | RB2 — Port B bit 2 |
| پین 36 | RB3/PGM — Port B bit 3 / low-voltage programming |
| پین 37 | RB4 — Port B bit 4 |
| پین 38 | RB5 — Port B bit 5 |
| پین 39 | RB6/PGC — Port B bit 6 / ICSP clock |
| پین 40 | RB7/PGD — Port B 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
PIC16LC64AT-04I/PQ مناسب است برای 6 کاربردs: Industrial Automation Controller, Sensor Interface Module, Low-Power Consumer Appliance, Motor Control Peripheral, Embedded Control Subsystem, HVAC Damper / Valve Controller.
Industrial Automation Controller
The PIC16LC64AT-04I/PQ fits industrial automation controllers thanks to its 4 MHz 8-bit RISC core, 3.5 KB OTP memory, and 33 I/O pins. With industrial-temperature operation (-40C to +85C), Brown-out Reset, and Watchdog Timer, it reliably drives sensor arrays, relay boards, and stepper-motor actuators in factory PLCs. The 3.0V to 5.5V supply range tolerates 24V industrial bus transients when paired with a linear regulator. The 44-MQFP package exposes dedicated PWM and SSP (I2C/SPI) peripherals for closed-loop control, while OTP memory secures firmware in high-volume deployments.
پیشنهادی
Sensor Interface Module
The PIC16LC64AT-04I/PQ suits distributed sensor interface modules that read analog/digital sensors and forward data over SPI or I2C. Its 4 MHz deterministic core provides 1 MIPS performance, while 128 bytes RAM buffers small sensor frames. The integrated SSP peripheral reduces external component count for sensor hubs, and the 33 I/O pins accommodate multi-channel sensor matrices. The 3.0V minimum supply aligns with 3.3V sensor rails, simplifying power-tree design.
پیشنهادی
Low-Power Consumer Appliance
The PIC16LC64AT-04I/PQ targets low-power consumer appliances where the 3.0V to 5.5V CMOS core operate down to DC, supporting Sleep-mode wake cycles that extend coin-cell battery life. Its 4 MHz RISC engine handles keypad scanning, display multiplexing, and PWM-driven motor control. The 33 I/O drive LED indicators, character LCDs, and buzzer outputs without external logic. OTP flash memory secures final firmware in appliances such as coffee makers, robotic vacuums, and electronic thermostats.
پیشنهادی
Motor Control Peripheral
The PIC16LC64AT-04I/PQ drives BLDC and stepper motor control peripherals via its PWM and Capture/Compare modules. With 33 I/O pins and four PWM channels, the MCU generates commutation signals, reads Hall-effect sensors, and modulates motor speed in real time. The 4 MHz instruction rate (1 MIPS) is adequate for trapezoidal commutation at moderate speeds, while the industrial temperature range supports under-hood automotive auxiliary pumps and HVAC damper actuators.
پیشنهادی
Embedded Control Subsystem
The PIC16LC64AT-04I/PQ serves as an embedded control subsystem in larger equipment, offloading housekeeping tasks such as fan control, LED driving, button debouncing, and serial bridging. With 3.5 KB OTP, 128 bytes RAM, and I2C/SPI peripherals, the MCU acts as a low-cost slave controller that talks to a host processor. The 44-MQFP footprint allows PCB integration alongside main SoCs without sacrificing board space.
پیشنهادی
HVAC Damper / Valve Controller
The PIC16LC64AT-04I/PQ drives HVAC damper and valve actuators that require precise PWM outputs and reliable operation across temperature swings. Its -40C to +85C industrial temperature rating handles rooftop unit environments, while the 44-MQFP package fits compact actuator housings. Integrated Brown-out Reset prevents erratic actuator behavior during brown-out events, and the SSP peripheral connects to climate sensors and host BMS over I2C.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC16LC64AT-04I/PQ — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC16LC64A-04I/PQ | PIC16LC64AT-04I/L | PIC16LC64AT-04/PT | PIC16LC63A-04I/SO | PIC16LC62A-04I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-MQFP (10x10) | 44-MQFP (10x10) | 44-PLCC | 44-TQFP | 28-SOIC | 28-SOIC |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP |
| Max Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| RAM Size | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| I/O Pins | 33 | 33 | 33 | 33 | 22 | 22 |
| Supply Voltage | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | 0C to +70C (commercial) / -40C to +85C (industrial) | -40C to +85C | -40C to +85C |
| Memory Type | OTP | OTP | OTP | OTP | OTP | OTP |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
تفاوت‌های کلیدی
- Industrial temperature grade in 44-MQFP (در مقابلPIC16LC63A-04I/SO)
- Tape-and-reel packaging for high-volume SMT (در مقابلPIC16LC64A-04I/PQ)
- 44-MQFP form factor with full peripheral access (در مقابلPIC16LC62A-04I/SO)
یادداشت‌های طراحی
The PIC16LC64AT-04I/PQ uses One-Time Programmable (OTP) memory that can be written only once. Validate firmware extensively using a windowed ceramic sample or PIC16F equivalent before committing to OTP programming. Once programmed, the part cannot be erased. Misconfigured configuration bits (oscillator selection, watchdog, code protection) can also brick the device; document bit settings in source code comments.
Decouple the VDD/VSS pins with 100 nF ceramic capacitors placed within 5 mm of the package. For noise-sensitive designs, add a 10 uF bulk capacitor near the supply pin. The LC low-voltage variant operates from 3.0V to 5.5V; exceeding 5.5V can permanently damage the OTP cell write circuits. Brown-out Reset must be enabled in configuration bits to prevent code execution at unsafe voltages.
Keep the crystal/oscillator traces short and surround them with a ground guard ring to minimize EMI coupling. The MCLR pin requires a 10 kΩ pull-up to VDD; a 100 nF capacitor from MCLR to VSS improves noise immunity. Place programming header pads (ICSPDAT/ICSPCLK on RB6/RB7) on the PCB even for production boards to allow in-system programming before OTP locking.
اطلاعات انطباق
Lifecycle obsolete per Microchip PIC16C6X family status. RoHS/REACH/lead-free status not stated in verified distributor data; consult Microchip product environmental compliance documents before new designs.
