PIC16LC620A-04I/SS - 8-bit OTP MCU, 896B, 4MHz, SSOP-20 | Microchip
MPN: PIC16LC620A-04I/SS ✓ فعالPIC16LC620A-04I/SS نمای کلی
An MCU (microcontroller) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral I/O on one die. The PIC16C architecture belongs to the PIC10/12/16 family of RISC microcontrollers, which sits inside the broader 8-bit microcontroller category. 8-bit MCUs continue to dominate cost-sensitive, deterministic, low-power embedded designs - especially where code density and ease of programming outweigh raw throughput. Within that family, OTP (One-Time Programmable) variants such as the PIC16LC620A are intended for volume production where field firmware updates are not required and per-unit programming cost must remain low.
Key features include a 35-instruction RISC core, single-cycle execution except for program branches (200 ns instruction cycle at 20 MHz input clock), a two-level hardware stack, and a programmable watchdog timer. The wide operating voltage range of 2.5V to 6.25V allows direct connection to both 3.3V and 5V rails, while the internal comparator and 8-bit timer modules support mixed-signal designs. Two comparators with programmable reference voltages provide analog signal conditioning without external op-amps.
Typical applications include automotive interior lighting controllers, appliance user-interface panels, simple sensor conditioning, battery-powered instrumentation, and stand-alone logic-replacement boards. The 13 I/O pins easily drive LED arrays, key-scan matrices, and low-speed serial interfaces such as UART or I2C in master mode. The PIC16LC620A-04I/SS (industrial temperature grade -40C to +85C) is suitable for environments where the commercial-grade /04 version cannot operate.
When migrating code, note that the 'LC' suffix denotes the low-voltage CMOS variant and that the 'I' suffix is the industrial temperature grade. For new designs consider flash-based PIC16F equivalents to simplify firmware iteration during prototyping.
جایگزین‌های drop-in برای PIC16LC620A-04I/SS — 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 PIC16LC620A-04I/SS (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Program Memory Size, Program Memory Type, Operating Temperature Range, RAM Size.
PIC16LC620A-04/SS
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC620A-04E/SS
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC620A-04E/SO
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC620-04I/SS
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16F627A-I/SS
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16C622A-I/SS
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16LC620A-04/P
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16LC620A-04I/SS حداکثر مقادیر مجاز و مشخصات الکتریکی
| Product Family | PIC16C (PIC16LC620A) |
| Core | 8-bit RISC PIC |
| Program Memory Type | OTP (One-Time Programmable EPROM) |
| Program Memory Size | 896 B (512 x 14) |
| RAM Size | 96 B |
| EEPROM Size | None |
| حداکثر فرکانس کلاک | 4 MHz |
| Instruction Cycle Time | 1 us at 4 MHz (200 ns at 20 MHz reference) |
| Supply Voltage Range | 2.5 V to 6.25 V |
| I/O Pins | 13 |
| Timers | 8-bit x 1, WDT |
| Comparators | 2 internal |
| ADC | None |
| Instruction Set Width | 14-bit |
| Stack Depth | 2 levels (hardware) |
| محدوده دمای کاری | -40 C to +85 C (industrial, I grade) |
| بسته‌بندی | 20-pin SSOP (5.30 mm body) |
| نوع نصب | Surface Mount |
| وضعیت RoHS | Compliant |
پیکربندی پین PIC16LC620A-04I/SS
| پین 1 | RA5/MCLR/VPP — General purpose I/O / Master Clear (Reset) input / Programming voltage input |
| پین 2 | RA0/AN0 — General purpose I/O / Analog comparator input 0 |
| پین 3 | RA1/AN1 — General purpose I/O / Analog comparator input 1 |
| پین 4 | RA2/AN2 — General purpose I/O / Analog comparator input 2 |
| پین 5 | RA3/AN3 — General purpose I/O / Analog comparator input 3 |
| پین 6 | RA4/T0CKI — General purpose I/O / Timer 0 clock input |
| پین 7 | VSS — Ground reference |
| پین 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| پین 9 | OSC2/CLKOUT — Oscillator crystal output / clock output (Fosc/4) |
| پین 10 | RB0/INT — General purpose I/O / External interrupt input |
| پین 11 | RB1 — General purpose I/O |
| پین 12 | RB2 — General purpose I/O |
| پین 13 | RB3 — General purpose I/O |
| پین 14 | RB4 — General purpose I/O |
| پین 15 | RB5 — General purpose I/O |
| پین 16 | RB6 — General purpose I/O |
| پین 17 | RB7 — General purpose I/O |
| پین 18 | VSS — Ground reference (secondary) |
| پین 19 | VDD — Positive supply voltage (2.5 V to 6.25 V) |
| پین 20 | NC — Not connected (per datasheet, reserved) |
کاربردهای معمول
PIC16LC620A-04I/SS مناسب است برای 7 کاربردs: Automotive Interior Lighting Controller, Home Appliance User-Interface Panel, Battery-Powered Sensor Node, Standalone Logic Replacement Board, Industrial Sensor Signal Conditioning, Smart Card Reader / Access Control, Educational and Hobby Development Boards.
Automotive Interior Lighting Controller
The PIC16LC620A-04I/SS is well-suited to automotive interior lighting controllers where its 13 digital I/O pins can directly drive LED strings via discrete MOSFETs or bipolar transistors. The 2.5 V to 6.25 V supply range accepts a regulated 5 V automotive body rail directly, while the industrial -40 C to +85 C temperature grade covers cabin environments. The two internal comparators implement current-sense feedback for short-circuit protection, and the 96 B RAM holds dimming state across key-cycle events without external EEPROM.
پیشنهادی
Home Appliance User-Interface Panel
For washing-machine or microwave front-panel controllers, the PIC16LC620A-04I/SS provides enough I/O (13 pins) for a 4x4 key-scan matrix plus 7-segment or LED bar indicators. The 35-instruction RISC core executes state-machine logic in single cycles (1 us at 4 MHz), keeping keypad response below 10 ms. OTP memory protects firmware IP at zero ongoing cost, while the two comparators detect line-voltage zero-cross events without an external op-amp.
پیشنهادی
Battery-Powered Sensor Node
The PIC16LC620A-04I/SS supports low-power sensor nodes powered from 3.3 V lithium or 5 V USB supplies, with the watchdog timer enabling sleep-mode duty cycling below 1 uA. Its 2.5 V minimum supply voltage extends useful battery life when cells droop under load. The two comparators interface directly to thermocouples or photodiodes for threshold detection, and the 8-bit timer captures pulse-train sensor outputs without CPU overhead.
پیشنهادی
Standalone Logic Replacement Board
Where designers are migrating 74HC logic gates to a single programmable part, the PIC16LC620A-04I/SS offers 13 I/O, 96 B RAM, and 512 instruction words (896 B OTP) in a compact SSOP-20. The 1 us instruction cycle replaces 10-20 discrete gates in glue logic while adding configurability via firmware. The 35-instruction RISC core is straightforward for logic-replacement C code, and the wide 2.5 V-6.25 V supply removes the need for level translation.
پیشنهادی
Industrial Sensor Signal Conditioning
The PIC16LC620A-04I/SS conditions analog sensor signals via its two internal comparators with programmable voltage references, outputting clean logic-level triggers to a host PLC or counter. The 2.5 V to 6.25 V supply accepts 5 V industrial rails directly, and the industrial -40 C to +85 C temperature range tolerates factory-floor environments. The 8-bit timer captures pulse widths up to 256 us with hardware start, offloading the CPU.
پیشنهادی
Smart Card Reader / Access Control
The PIC16LC620A-04I/SS implements low-cost access-control readers where its OTP memory secures proprietary protocol firmware and its industrial temperature grade supports outdoor installations. The two internal comparators interface directly to magnetic-stripe or Wiegand readers, while the 8-bit timer captures bit-stream timing within 1 us accuracy. The 13 I/O pins drive indicator LEDs, buzzer, and relay outputs from a single device.
پیشنهادی
Educational and Hobby Development Boards
The PIC16LC620A-04I/SS is widely used in educational kits and hobbyist projects where its 35-instruction RISC core teaches fundamentals without overwhelming beginners. Its SSOP-20 footprint is breadboard-friendly with adapter boards, and the wide 2.5 V to 6.25 V supply tolerates both 3.3 V and 5 V USB power sources. The 896 B OTP memory supports complete tutorial projects from blinky LEDs to UART communication, and the industrial temperature grade allows projects to ship in consumer enclosures.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC16LC620A-04I/SS — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC16LC620A-04/SS | PIC16LC620A-04E/SS | PIC16LC620-04I/SS | PIC16F627A-I/SS | PIC16C622A-I/SS |
|---|---|---|---|---|---|---|
| Package | 20-SSOP (5.30 mm) | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 896 B OTP | 896 B OTP | 896 B OTP | 896 B EPROM | 1 KB Flash | 2 KB OTP |
| RAM | 96 B | 96 B | 96 B | 96 B | 128 B | 128 B |
| Maximum Clock | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz |
| Supply Voltage | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.0 V to 5.5 V | 3.0 V to 6.0 V |
| I/O Pins | 13 | 13 | 13 | 13 | 16 | 13 |
| Comparators | 2 | 2 | 2 | 2 | 2 | 2 |
| ADC | None | None | None | None | None | 8-bit, 8 channels |
| Operating Temperature | -40 C to +85 C | 0 C to +70 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
تفاوت‌های کلیدی
- Wide supply voltage range (2.5 V to 6.25 V) supports both 3.3 V and 5 V rails (در مقابلPIC16C620A (non-L variant))
- Industrial temperature grade -40 C to +85 C suitable for harsh environments (در مقابلPIC16LC620A-04/SS (commercial grade))
- Drop-in flash-based upgrade path without PCB rework (در مقابلPIC16F627A-I/SS)
- 13 I/O pins in SSOP-20 with 35-instruction RISC core (در مقابلPIC16C622A-I/SS)
یادداشت‌های طراحی
Estimated: at 4 MHz clock, 5 V supply, and 13 I/O pins sourcing 10 mA each into 5 V logic, total device current is approximately 5 mA core + 130 mA I/O = 135 mA, dissipating about 0.675 W in the SSOP-20. The SSOP-20 thermal resistance of 90 C/W (with minimal copper) limits junction temperature to +85 C at ambient +25 C only when I/O current is below 70 mA total. For higher I/O loading, add a ground-pour heat-spreader under the exposed pad or reduce clock frequency.
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 19) and a bulk 10 uF capacitor on the same supply trace. For PIC16C62X designs with external crystal oscillator, keep the crystal and load capacitors within 5 mm of OSC1/OSC2 (pins 8 and 9). Route the MCLR/VPP line (pin 1) directly to the reset circuit - avoid long traces that pick up noise and cause spurious resets during OTP programming.
Do not assume the PIC16LC620A-04I/SS can be programmed in-circuit via standard ICSP - the OTP EPROM requires high-voltage programming (VPP = 13 V typical). Use the Microchip MPLAB PM3 or equivalent production programmer with the appropriate programming adapter. Avoid applying external pull-up to MCLR/VPP without a 10 kohm series resistor, as it can interfere with the high-voltage programming pulse during factory programming.
Estimated: SSOP-20 has a 0.65 mm pin pitch, requiring reflow soldering with a fine-pitch stencil. Reserve 0.4 mm solder-pad width with 0.2 mm gaps to prevent solder bridges between adjacent pins. Keep high-current traces (those carrying I/O loads above 20 mA) at least 2 mm away from the oscillator circuit on the same layer to minimize noise injection into the timing-critical analog blocks.
اطلاعات انطباق
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified for automotive safety-critical applications. Lead-free reflow-compatible SSOP-20 package.
