PIC16LC505-04/P - 1.5KB EPROM 8-bit MCU | Microchip | 14-PDIP
MPN: PIC16LC505-04/P ✗ پایان تولیدPIC16LC505-04/P نمای کلی
An 8-bit microcontroller (MCU) is a single-chip microcomputer integrating a CPU, RAM, non-volatile program memory, timers/counters, and I/O peripherals on a single CMOS die. Within the broader taxonomy, the PIC16LC505 sits at: 8-bit MCU -> RISC microcontroller -> embedded controller -> microcontroller -> semiconductor IC. The 'LC' suffix denotes a low-voltage CMOS variant optimized for 2.5 V to 5.5 V operation, while the '04' suffix indicates the 4 MHz maximum clock speed.
Key features include In-Circuit Serial Programming (ICSP), Power-on Reset (POR), Device Reset Timer (DRT), a Watchdog Timer (WDT) with a dedicated on-chip RC oscillator, programmable code protection, and internal weak pull-ups on I/O pins. The EPROM-based program memory allows prototype and small-volume production while retaining full PIC architectural compatibility with mask-ROM PIC16C505 variants, easing long-term firmware portability.
The architecture combines a 12-bit instruction word with a Harvard-style separate program and data bus, executed by a two-stage pipeline. At 4 MHz, instruction throughput is 5 MIPS with deterministic 200 ns single-cycle execution; the device operates over a 2.5 V to 5.5 V range and an industrial temperature span of -40 C to +85 C (industrial grade).
Typical applications include low-cost consumer appliances, battery-powered remote sensors, LED driver controllers, simple motor control logic, and educational/hobbyist embedded platforms where through-hole PDIP is preferred for breadboard or hand-soldered prototyping.
Design consideration: although the LC variant tolerates down to 2.5 V, EEPROM/EPROM write and programming operations require VDD within the upper half of the supply range; ensure decoupling with a 0.1 uF ceramic capacitor placed within 5 mm of VDD/GND.
This page synthesizes distributor pricing, drop-in alternatives, parametric comparisons, and practical design notes that complement the manufacturer datasheet.
جایگزین‌های drop-in برای PIC16LC505-04/P — 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 PIC16LC505-04/P (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Program Memory Size, Operating Temperature, Program Memory Type, Timers, Architecture.
PIC16C505-04/P
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16F505-I/P
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16F506-I/P
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC505-04I/P
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16C505-04I/P
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16LC505-04/P حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | PIC 8-bit RISC |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 1.5 KB (1K x 12) |
| RAM Size | 72 x 8 (72 bytes) |
| Number of I/O Pins | 12 |
| CPU Speed | 4 MHz |
| Instruction Cycle Time | 200 ns |
| Instruction Set Width | 12-bit |
| Instruction Count | 33 single-word instructions |
| Supply Voltage (VDD) | 2.5 V to 5.5 V |
| Oscillator Type | External |
| بسته‌بندی / کیس | 14-DIP (PDIP), 0.300 inch / 7.62 mm |
| نوع نصب | Through-Hole |
| دمای کاری | -40 C to +85 C |
| Peripherals | WDT, POR, DRT, ICSP, weak pull-ups |
| Code Protection | Programmable |
| سطح MSL | Not applicable (through-hole) |
| وضعیت RoHS | Compliant |
پیکربندی پین PIC16LC505-04/P
| پین 1 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
| پین 2 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| پین 3 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| پین 4 | MCLR/VPP — Master clear reset (active low) / programming voltage input |
| پین 5 | GP0/RB0 — General-purpose I/O / ICSP PGD |
| پین 6 | GP1/RB1 — General-purpose I/O / ICSP PGC |
| پین 7 | GP2/RB2 — General-purpose I/O |
| پین 8 | GP3/RB3 — General-purpose I/O (input only) |
| پین 9 | GP4/RB4 — General-purpose I/O |
| پین 10 | GP5/RB5 — General-purpose I/O |
| پین 11 | RB6 — General-purpose I/O |
| پین 12 | RB7 — General-purpose I/O |
| پین 13 | VSS — Ground reference |
| پین 14 | VSS — Ground reference (per datasheet 14-PDIP pinout) |
کاربردهای معمول
PIC16LC505-04/P مناسب است برای 6 کاربردs: Consumer Appliance Controllers, Battery-Powered Remote Sensors, LED Driver Controllers, Simple Motor Control Logic, Educational and Hobbyist Platforms, Field-Replaceable Industrial Modules.
Consumer Appliance Controllers
The PIC16LC505-04/P fits consumer appliance controllers thanks to its 1.5 KB EPROM, 12 I/O pins, and 4 MHz RISC core, which together handle simple state machines for toasters, fans, coffee makers, and kitchen timers. Its 2.5 V to 5.5 V supply range accommodates 3.3 V or 5 V rails directly from rectified mains adapters. Compared with PIC16F-series alternatives, the OTP EPROM cost advantage is meaningful in sub-$10 high-volume appliances, while the WDT and POR blocks provide robustness against brown-out events common in motor-driven loads.
پیشنهادی
Battery-Powered Remote Sensors
The PIC16LC505-04/P supports battery-powered remote sensors by combining a low-voltage 2.5 V operating floor (compatible with 2x AA alkaline cells declining to ~2.4 V at end-of-life) with the LP (low-power) oscillator mode for sub-microwatt sleep currents. The 12-bit instruction set and 200 ns cycle time let the core wake, read a sensor via I/O, and return to sleep with minimal energy budget. The integrated WDT on dedicated RC oscillator eliminates an external watchdog IC, shrinking BOM for sealed sensor enclosures.
پیشنهادی
LED Driver Controllers
The PIC16LC505-04/P functions well as an LED driver controller, with 12 I/O pins capable of multiplexing 7-segment displays or driving multiple LED strings via MOSFET gates through PWM-like bit-banging at the 200 ns instruction cycle. The 33-instruction RISC core implements breathing/colour-mixing animations efficiently while the OTP EPROM locks the colour profile at production. The 4 MHz throughput and 5 MIPS deliver smooth 50 Hz/60 Hz flicker-free PWM at 8-bit resolution without hardware peripherals.
پیشنهادی
Simple Motor Control Logic
The PIC16LC505-04/P serves as simple motor control logic for low-DC brushed motors, solenoids, or stepper sequencing. With 12 I/O pins and 4 MHz throughput, the core can drive a half-bridge or full-bridge pre-driver directly through GPIO, implementing start/stop, direction reversal, and soft-start ramps in firmware. The 2.5 V to 5.5 V VDD range suits 3.3 V or 5 V logic-level gate drivers, while WDT and POR ensure safe motor state recovery after brown-outs in industrial 24 V environments with simple LDO pre-regulation.
پیشنهادی
Educational and Hobbyist Platforms
The PIC16LC505-04/P is widely used in educational and hobbyist platforms because its through-hole 14-pin PDIP is breadboard-friendly and hand-solderable, eliminating reflow equipment. The PIC16C505 architecture is taught in many microcontroller courses for its clean 33-instruction RISC model, 12-bit instruction word, and clear Harvard memory separation. ICSP support via GP0/GP1 lets students program and re-flash the device in-circuit using a PICkit 3 or similar programmer, accelerating learning cycles despite OTP limitations.
پیشنهادی
Field-Replaceable Industrial Modules
The PIC16LC505-04/P is suited to field-replaceable industrial modules because its through-hole PDIP withstands mechanical stress and can be socketed for easy field swap-out. Its 2.5 V to 5.5 V range, industrial -40 C to +85 C operating temperature, and robust WDT with dedicated RC oscillator deliver predictable behaviour in PLC I/O expansion, sensor signal conditioning front-ends, and isolated serial-to-parallel converters. The OTP EPROM locks firmware against accidental field rewrites that could compromise safety certifications.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC16LC505-04/P — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC16C505-04/P | PIC16F505-I/P | PIC16F506-I/P | PIC16LC505-04I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-PDIP (0.300 inch) | 14-PDIP (0.300 inch) - same | 14-PDIP (0.300 inch) - same | 14-PDIP (0.300 inch) - same | 14-PDIP (0.300 inch) - same |
| Program Memory Type | OTP EPROM | OTP EPROM / mask ROM | Flash | Flash | OTP EPROM |
| Program Memory Size | 1.5 KB (1K x 12) | 1.5 KB (1K x 12) | 1.5 KB | 1.5 KB | 1.5 KB (1K x 12) |
| RAM Size | 72 bytes | 72 bytes | 72 bytes | 67 bytes | 72 bytes |
| I/O Pins | 12 | 12 | 12 | 12 | 12 |
| CPU Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Supply Voltage | 2.5 V to 5.5 V | 3.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.5 V to 5.5 V |
| Internal Oscillator | No (external) | No (external) | Yes (4 MHz) | Yes (8 MHz) | No (external) |
| Operating Temperature | -40 C to +85 C (industrial) | 0 C to +70 C (commercial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C (industrial) |
تفاوت‌های کلیدی
- Lowest voltage floor in PIC16C505 family at 2.5 V vs 3.0 V (در مقابلPIC16C505-04/P)
- OTP EPROM cost advantage over Flash variants (در مقابلPIC16F505-I/P)
- Through-hole PDIP form factor for prototyping and field-replaceable modules (در مقابلPIC16F506-I/P)
- Industrial operating temperature range explicitly specified (در مقابلPIC16C505-04/P)
یادداشت‌های طراحی
Place a 0.1 uF decoupling capacitor within 5 mm of VDD (pin 1) and a bulk 10 uF electrolytic at the supply entry. The PIC16LC505-04/P draws peak current spikes during oscillator transitions; without local decoupling, these can inject noise into the analog sections of mixed-signal boards. For battery applications, add a series ferrite bead on VDD to suppress conducted noise from DC-DC converters.
Keep oscillator traces short and surround them with a ground guard ring. For XT mode use a parallel-resonant crystal with 20-33 pF load capacitors tied to VSS; for LP mode use 68-100 pF. Route MCLR (pin 4) away from oscillator and high-current traces to avoid spurious resets. Through-hole PDIP gives generous creepage distance, so no special clearance rules apply under 50 V working voltage.
Do not assume the OTP EPROM is erasable; once programmed, the PIC16LC505-04/P cannot be rewritten. For prototype development, buy units marked 'windowed' (PIC16C505 JW package) or switch to PIC16F505 Flash. The configuration-word oscillator mode must be set explicitly; leaving it at the default can cause the device to fail to start with no external crystal. Estimated: total GPIO toggling latency = 2 instruction cycles (400 ns at 4 MHz) due to read-modify-write PORT register hazards - design critical sections accordingly.
The 12 GP/RB pins have weak internal pull-ups (typically 100-500 kohm) suitable only for switch-contact debouncing, not for driving LED loads. For LED driving, use external current-limiting resistors and ensure total source/sink current per pin does not exceed 25 mA, with package total below 200 mA. ICSP programming uses GP0/PGD and GP1/PGC - leave these accessible in production designs or include a 2x3 header footprint for in-circuit programming.
اطلاعات انطباق
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose AEC-Q100-graded PIC MCUs (e.g., PIC16F18313-I/P) for automotive. Industrial temperature grade available as PIC16LC505-04I/P.
