PIC16LC64A-04/L - 8-bit PIC MCU, 4MHz, 3.5KB OTP, PLCC-44 | Microchip
MPN: PIC16LC64A-04/L ✓ Hoạt độngPIC16LC64A-04/L Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC64A-04/L — 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 PIC16LC64A-04/L (cùng hình factor và footprint) — khác nhau ở Package, Program Memory Size, Mounting Type, Program Memory Type, Instruction Set.
PIC16C64A-04/L
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16CR64A-04/L
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC65A-04I/L
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC64A-04/L Tỷ lệ tối đa & tính chất điện
| Core | PIC16C 8-bit RISC |
| Tần số xung maksimum | 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 |
| Hộp | PLCC-44 (16.59 x 16.59 mm) |
| Kiểu lắp đặt | Surface Mount |
| Architecture | Harvard (RISC) |
| Instruction Set | 35 single-word instructions |
| Khoảng nhiệt độ hoạt động | -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) |
Cấu hình chân PIC16LC64A-04/L
| Chân 1 | MCLR/Vpp — Master clear (reset) input / programming voltage input |
| Chân 2 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Chân 3 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Chân 4 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Chân 5 | RA3/AN3/Vref+ — Port A bit 3 / analog input 3 / ADC reference |
| Chân 6 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| Chân 8 | Vss — Ground reference |
| Chân 9 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| Chân 10 | OSC2/CLKOUT — Crystal oscillator output / clock output |
| Chân 11 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator out / Timer1 clock in |
| Chân 12 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator in / Capture-Compare-PWM 2 |
| Chân 13 | RC2/CCP1 — Port C bit 2 / Capture-Compare-PWM 1 |
| Chân 14 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| Chân 15 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| Chân 16 | RC5/SDO — Port C bit 5 / SPI data out |
| Chân 17 | RC6/TX/CK — Port C bit 6 / USART transmit / clock |
| Chân 18 | RC7/RX/DT — Port C bit 7 / USART receive / data |
| Chân 19 | Vss — Ground reference |
| Chân 20 | Vdd — Positive supply voltage |
| Chân 21 | RB0/INT — Port B bit 0 / external interrupt |
| Chân 22 | RB1 — Port B bit 1 |
| Chân 23 | RB2 — Port B bit 2 |
| Chân 24 | RB3 — Port B bit 3 |
| Chân 25 | RB4 — Port B bit 4 |
| Chân 26 | RB5 — Port B bit 5 |
| Chân 27 | RB6/PGC — Port B bit 6 / ICSP clock |
| Chân 28 | RB7/PGD — Port B bit 7 / ICSP data |
| Chân 29 | NC — Not connected (per datasheet) |
| Chân 30 | NC — Not connected (per datasheet) |
| Chân 31 | NC — Not connected (per datasheet) |
| Chân 32 | NC — Not connected (per datasheet) |
| Chân 33 | NC — Not connected (per datasheet) |
| Chân 34 | NC — Not connected (per datasheet) |
| Chân 35 | NC — Not connected (per datasheet) |
| Chân 36 | NC — Not connected (per datasheet) |
| Chân 37 | NC — Not connected (per datasheet) |
| Chân 38 | NC — Not connected (per datasheet) |
| Chân 39 | NC — Not connected (per datasheet) |
| Chân 40 | NC — Not connected (per datasheet) |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC16LC64A-04/L phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC64A-04/L — 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 | 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 |
Bảo phân biệt quan trọng
- OTP EPROM with 3.5 KB code space (vsPIC16C64A-04/L)
- Wide 3.0-5.5 V supply including low-power CMOS (vsPIC16C64A-04/L)
- Single-supply 33 I/O with broad peripheral set (vsPIC16LC65A-04I/L)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
