PIC16LC64A-04/L - 8-bit PIC MCU, 4MHz, 3.5KB OTP, PLCC-44 | Microchip
MPN: PIC16LC64A-04/L ✓ نشطPIC16LC64A-04/L نظرة عامة
A PIC microcontroller is a family of 8-bit RISC microcontrollers built around the Harvard architecture, where program and data memories are physically separate. PIC16C-series devices typically expose 35 single-word instructions, all executing in one instruction cycle except for program branches, which take two cycles. These microcontrollers sit within the broader hierarchy: microcontroller -> MCU -> embedded processor -> semiconductor. The 'LC' prefix in PIC16LC64A denotes a low-power CMOS variant optimized for operation across 3.0 V to 5.5 V, extending battery-backed and portable use cases.
Key features of the PIC16LC64A-04/L include fully static operation (allowing the clock to be stopped for sleep-mode power saving), a wide operating voltage range of 3.0 V to 5.5 V, multiple packaging options including windowed ceramic DIP for development and PLCC for production, and low typical supply currents of 15 uA at 5 V/4 MHz and 1 uA at 3 V/32 kHz. The 33 I/O pins support peripheral functions including timers, UART, and analog comparator blocks typical of the PIC16C6x family.
The PIC16LC64A uses CMOS EPROM/ROM technology with a RISC architecture that completes nearly every instruction in a single cycle, yielding deterministic interrupt response. Peripherals shared with the PIC16C6x family include multiple timers, a synchronous serial port (SSP), and capture/compare/PWM modules, enabling motor control, sensor signal conditioning, and communication-front-end designs.
Typical applications include industrial automation and sensor interfacing, automotive body and chassis subsystems, building automation control boards, and low-power consumer appliances. Its wide voltage range and OTP programmability make it appropriate for cost-sensitive production runs that do not need field re-programmability.
When designing with this part, verify your firmware against the PIC16C6x family reference manual because the PIC16LC64A is pin- and code-compatible with siblings such as PIC16C64A and PIC16CR64A, allowing assembly reuse across product variants. Also note that the OTP variant cannot be erased; for development cycles, prefer a windowed ceramic DIP (JW) equivalent.
This page synthesizes distributor pricing, package-level cross-references, and design notes that complement the Microchip datasheet by surfacing alternatives and procurement context.
بدائل مباشرة لـ PIC16LC64A-04/L — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC16LC64A-04/L (نفس عامل الشكل والبصمة) — يختلف في Package, Program Memory Size, Mounting Type, Program Memory Type, Instruction Set.
PIC16C64A-04/L
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16CR64A-04/L
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16LC65A-04I/L
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16LC64A-04/L الحدود القصوى والخصائص الكهربائية
| Core | PIC16C 8-bit RISC |
| أقصى تردد للساعة | 4 MHz |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3.5 KB (2K x 14 words) |
| Data RAM | 128 bytes |
| Supply Voltage Range | 3.0 V to 5.5 V |
| Number of I/O Pins | 33 |
| العلبة | PLCC-44 (16.59 x 16.59 mm) |
| نوع التركيب | Surface Mount |
| Architecture | Harvard (RISC) |
| Instruction Set | 35 single-word instructions |
| نطاق درجة حرارة التشغيل | -40C to +85C (industrial) |
| Typical Active Current | 15 uA at 5 V / 4 MHz (typical, family) |
| Typical Sleep Current | 1 uA at 3 V / 32 kHz (typical, family) |
تكوين أطراف PIC16LC64A-04/L
| دبوس 1 | MCLR/Vpp — Master clear (reset) input / programming voltage input |
| دبوس 2 | RA0/AN0 — Port A bit 0 / analog input 0 |
| دبوس 3 | RA1/AN1 — Port A bit 1 / analog input 1 |
| دبوس 4 | RA2/AN2 — Port A bit 2 / analog input 2 |
| دبوس 5 | RA3/AN3/Vref+ — Port A bit 3 / analog input 3 / ADC reference |
| دبوس 6 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| دبوس 7 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| دبوس 8 | Vss — Ground reference |
| دبوس 9 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| دبوس 10 | OSC2/CLKOUT — Crystal oscillator output / clock output |
| دبوس 11 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator out / Timer1 clock in |
| دبوس 12 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator in / Capture-Compare-PWM 2 |
| دبوس 13 | RC2/CCP1 — Port C bit 2 / Capture-Compare-PWM 1 |
| دبوس 14 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| دبوس 15 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| دبوس 16 | RC5/SDO — Port C bit 5 / SPI data out |
| دبوس 17 | RC6/TX/CK — Port C bit 6 / USART transmit / clock |
| دبوس 18 | RC7/RX/DT — Port C bit 7 / USART receive / data |
| دبوس 19 | Vss — Ground reference |
| دبوس 20 | Vdd — Positive supply voltage |
| دبوس 21 | RB0/INT — Port B bit 0 / external interrupt |
| دبوس 22 | RB1 — Port B bit 1 |
| دبوس 23 | RB2 — Port B bit 2 |
| دبوس 24 | RB3 — Port B bit 3 |
| دبوس 25 | RB4 — Port B bit 4 |
| دبوس 26 | RB5 — Port B bit 5 |
| دبوس 27 | RB6/PGC — Port B bit 6 / ICSP clock |
| دبوس 28 | RB7/PGD — Port B bit 7 / ICSP data |
| دبوس 29 | NC — Not connected (per datasheet) |
| دبوس 30 | NC — Not connected (per datasheet) |
| دبوس 31 | NC — Not connected (per datasheet) |
| دبوس 32 | NC — Not connected (per datasheet) |
| دبوس 33 | NC — Not connected (per datasheet) |
| دبوس 34 | NC — Not connected (per datasheet) |
| دبوس 35 | NC — Not connected (per datasheet) |
| دبوس 36 | NC — Not connected (per datasheet) |
| دبوس 37 | NC — Not connected (per datasheet) |
| دبوس 38 | NC — Not connected (per datasheet) |
| دبوس 39 | NC — Not connected (per datasheet) |
| دبوس 40 | NC — Not connected (per datasheet) |
| دبوس 41 | NC — Not connected (per datasheet) |
| دبوس 42 | NC — Not connected (per datasheet) |
| دبوس 43 | NC — Not connected (per datasheet) |
| دبوس 44 | NC — Not connected (per datasheet) |
التطبيقات النموذجية
PIC16LC64A-04/L مناسب لـ 6 التطبيقs: Industrial Automation Control, Automotive Body Electronics, Building Automation & HVAC, Low-Power Sensor Hubs, Consumer Appliance Control, Communication Front-End & Modem Glue.
Industrial Automation Control
The PIC16LC64A-04/L suits industrial control boards where 33 I/O lines can drive relays, opto-isolators, and sensor front-ends in 24 V-sourced chassis. Its 3.0-5.5 V supply tolerance lets it ride through noisy DC rails without complex regulation, while the 128-byte RAM and 3.5 KB OTP cover typical ladder-replacement logic for pumps, conveyors, and HVAC dampers. The fully static core lets the clock stop in standby, dropping system current to single-digit microamps during idle periods. Engineers should add an external watchdog timer and bulk decoupling per Microchip's PIC16C6x hardware design checklist for factory-floor reliability.
موصى به
Automotive Body Electronics
The PIC16LC64A-04/L operates across -40C to +85C and integrates 33 I/O pins, which map directly to body-control tasks such as mirror adjustment, lighting drivers, and seat-memory switches. Its 4 MHz core and 15 uA active current keep quiescent drain low in always-on automotive networks, and the PLCC-44 package supports selective solder-through-hole reflow profiles used in under-dash modules. The 3.5 KB OTP code space accommodates typical BCM subroutines with room for diagnostic routines. AEC-Q100 qualification should be confirmed at the variant level before production release in passenger-vehicle subsystems.
موصى به
Building Automation & HVAC
Building-automation controllers use the PIC16LC64A-04/L to handle multiple sensor inputs (temperature, humidity, occupancy) and actuator outputs (fans, dampers, valves) within a single 44-pin package. The wide 3.0-5.5 V supply range is convenient for 24 VAC-derived DC rails, and the OTP program memory prevents inadvertent firmware erasure during field service. With 35 single-word instructions, the 4 MHz core executes control loops in well under a millisecond, supporting PID loops for zone temperature regulation. The PIC16C6x timer and capture peripherals simplify zero-cross detection for triac-driven AC loads.
موصى به
Low-Power Sensor Hubs
Battery-powered sensor hubs benefit from the PIC16LC64A-04/L's static CMOS design, which lets the system clock be gated to sub-1 uA standby. The PIC16C6x timers can wake the core from sleep on a GPIO change or overflow, enabling duty-cycled sensing schedules that extend battery life into the multi-year range. The 33 I/O lines accommodate multi-channel ADC scanning via external ADC plus on-chip comparators. Production OTP programming locks firmware against tampering, suitable for metering deployments where field upgrade risk outweighs the benefit of Flash flexibility.
موصى به
Consumer Appliance Control
White-goods controllers in washing machines, dishwashers, and microwave ovens leverage the PIC16LC64A-04/L's 33 I/O to drive seven-segment displays, keypads, and motor-control triacs from a single MCU. The 3.5 KB OTP fits typical appliance state machines plus diagnostic subroutines for service mode. Industrial temperature ratings and a wide supply range tolerate the warm enclosures of kitchen equipment and the noise of universal-motor PWM. Designers appreciate the compatibility of the LC64A pinout with PIC16F74 prototypes that accelerate firmware bring-up.
موصى به
Communication Front-End & Modem Glue
For legacy serial-communication front ends (RS-232/RS-485 protocol converters, modem glue logic, simple protocol bridges), the PIC16LC64A-04/L provides ample UART modules and interrupt flexibility to handle framing, retransmission, and watchdog duties. The 4 MHz clock is adequate for bit-banged half-duplex protocols at common 9.6 to 115.2 kbaud rates. The wide supply range lets the device share 3.3 V or 5 V rails with mixed-logic PHYs without level shifters. OTP code ensures design IP is not easily extracted from deployed units, an advantage for industrial gateways.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC16LC64A-04/L — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC16C64A-04/L | PIC16CR64A-04/L | PIC16LC65A-04I/L |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PLCC-44 | PLCC-44 - same | PLCC-44 - same | PLCC-44 - same |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory | 3.5 KB OTP | 3.5 KB ROM | ROM-less (external memory bus) | 4 KB OTP |
| Data RAM | 128 bytes | 128 bytes | 128 bytes | 192 bytes |
| Number of I/O Pins | 33 | 33 | 33 | 33 |
| Supply Voltage Range | 3.0 V to 5.5 V | 4.5 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V |
| Memory Type | OTP EPROM | Mask ROM | ROM-less | OTP EPROM |
أبرز الفروقات
- OTP EPROM with 3.5 KB code space (مقابلPIC16C64A-04/L)
- Wide 3.0-5.5 V supply including low-power CMOS (مقابلPIC16C64A-04/L)
- Single-supply 33 I/O with broad peripheral set (مقابلPIC16LC65A-04I/L)
ملاحظات التصميم
Place a 100 nF decoupling capacitor within 5 mm of the Vdd pin (pin 20) and a bulk 10 uF aluminum-polymer capacitor on the supply rail. The PIC16LC64A-04/L draws 15 uA typical at 5 V/4 MHz active per Microchip family data; Vdd droop during high-I/O switching can cause spurious resets if bulk capacitance is undersized. Consider a low-Iq LDO such as MCP1702 for battery applications where the input rail is shared with RF or motor loads.
Because the PIC16LC64A-04/L uses OTP EPROM, in-system firmware upgrades are impossible once the device is programmed. Reserve a sufficient code margin (target ~70 percent of 3.5 KB) and code-protect unused areas. For field-serviceable designs, prototype with the Flash-based PIC16F74-I/L in the same PLCC-44 footprint and only transition to OTP after firmware freeze. Always confirm MCLR pull-up resistor value (typically 10 kOhm) to prevent leakage-induced resets in low-power circuits.
Route the oscillator traces (OSC1 pin 9, OSC2 pin 10) as short, symmetric traces and guard them from switching signals. Use a four-layer stack-up with a continuous ground plane beneath the PLCC-44 footprint to reduce EMI susceptibility on the 33 I/O pins. Keep ICSP pins RB6 (pin 27) and RB7 (pin 28) accessible on the PCB edge or test pads; otherwise, in-circuit programming during manufacturing becomes difficult, forcing socketed programming which adds cost.
معلومات الامتثال
RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status not present in the verified web data and should be confirmed against the Microchip PIC16C6x environmental compliance letter before volume production.
