PIC16LC554T-04E/SO - 8-Bit 4MHz OTP MCU 896B | Microchip
MPN: PIC16LC554T-04E/SO ✓ فعالPIC16LC554T-04E/SO جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, and configurable I/O peripherals. The PIC16C family uses a RISC-based Harvard architecture with a 14-bit instruction word. Within the broader system hierarchy, this device sits as: microcontroller -> embedded processor -> semiconductor IC. The PIC16LC554 specifically targets cost-sensitive, low-pin-count embedded applications where the OTP (One-Time-Programmable) memory model is appropriate for high-volume production runs without firmware updates.
Key features include a 4 MHz maximum operating frequency, 33 single-word instructions, 2-level hardware stack, 8-bit timer/counter, watchdog timer (WDT) with on-chip RC oscillator, power-on reset (POR), and selectable oscillator options (RC, XT, LP, HS). The device operates across the extended industrial temperature range of -40 °C to +125 °C and is built on Microchip's CMOS process technology for low power consumption. With 13 bidirectional I/O pins, the device can interface directly to LEDs, buttons, simple sensors, and serial communication peripherals implemented in firmware.
The architecture combines a single accumulator (W register) with a memory-mapped I/O structure and 12-bit special function register addressing, allowing efficient C and assembly development. The enhanced PIC16C5X core shares its instruction set with the PIC16C54/55/56/57/58 family, providing software compatibility for code migration across 18-pin to 40-pin PIC16C5X devices. The LC variant specifically targets battery-powered and portable designs with its wide 3.0 V to 6.25 V supply range.
Typical applications include consumer appliance controls, battery chargers, remote controls, LED lighting controllers, simple sensor signal conditioning, low-end motor control, automotive body electronics sub-modules, and industrial timer/counter modules. The OTP memory and small footprint make it ideal for high-volume cost-optimized products.
When designing with this device, consider that OTP parts cannot be firmware-updated after programming - validate firmware thoroughly before mask programming. Provide adequate decoupling (100 nF ceramic near VDD) and reserve MCLR pin handling for reliable in-circuit programming.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a faster path from selection to prototype.
کے لیے ڈراپ اِن متبادل PIC16LC554T-04E/SO — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16LC554T-04E/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Core Architecture, Program Memory Size, Operating Temperature Range, Watchdog Timer, Program Memory Type.
PIC16LC554-04I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LC554T-04/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LC554-04/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LC54AT-04I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LC54CT-04I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LC554T-04E/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC16C 8-bit RISC |
| Program Memory Size | 896 B (512 x 14 words) OTP |
| RAM Size | 80 B |
| Maximum CPU Clock | 4 MHz |
| Supply Voltage Range | 3.0 V to 6.25 V |
| Number of I/O Pins | 13 |
| پیکیج | 18-SOIC (7.50 mm body width) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| آپریٹنگ درجہ حرارت رینج | -40 °C to +125 °C (enhanced) |
| Instruction Set | 33 single-word instructions |
| Stack Depth | 2 levels hardware |
| Timers | 1 x 8-bit Timer/Counter |
| Watchdog Timer | Yes (on-chip RC oscillator) |
| Power-On Reset | Yes |
| Oscillator Modes | RC, XT, LP, HS |
| Data EEPROM | Not present (ROM-less variant) |
PIC16LC554T-04E/SO پن کنفیگریشن
| پن 1 | RA2 — Bidirectional I/O port A bit 2 |
| پن 2 | RA3 — Bidirectional I/O port A bit 3 |
| پن 3 | T0CKI — Timer 0 clock input / RA4 |
| پن 4 | MCLR — Master clear reset input (active low) |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0 — Bidirectional I/O port B bit 0 |
| پن 7 | RB1 — Bidirectional I/O port B bit 1 |
| پن 8 | RB2 — Bidirectional I/O port B bit 2 |
| پن 9 | RB3 — Bidirectional I/O port B bit 3 |
| پن 10 | RB4 — Bidirectional I/O port B bit 4 |
| پن 11 | RB5 — Bidirectional I/O port B bit 5 |
| پن 12 | RB6 — Bidirectional I/O port B bit 6 |
| پن 13 | RB7 — Bidirectional I/O port B bit 7 |
| پن 14 | VDD — Positive supply voltage |
| پن 15 | OSC2 — Oscillator output / CLKOUT |
| پن 16 | OSC1 — Oscillator input / CLKIN |
| پن 17 | RA0 — Bidirectional I/O port A bit 0 |
| پن 18 | RA1 — Bidirectional I/O port A bit 1 |
عام استعمالات
PIC16LC554T-04E/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Consumer Appliance Control, Battery-Powered Remote Controls, LED Lighting Controllers, Industrial Timer and Counter Modules, Automotive Body Electronics Sub-Modules, Sensor Signal Conditioning Front-Ends.
Consumer Appliance Control
The PIC16LC554T-04E/SO is well suited for cost-sensitive consumer appliance controls such as coffee makers, toasters, microwave oven user interfaces, washing machine cycle controllers, and air-conditioner remote panels. The 4 MHz CPU, 896B OTP program memory, and 13 GPIO pins provide sufficient headroom for state-machine-based user interface logic, keypad scanning, and seven-segment or basic LCD driving. Operating from 3.0 V to 6.25 V, it directly supports both 3.3 V logic-level sensor interfaces and 5 V relay/triac drive circuits. The OTP memory model minimizes per-unit cost in high-volume production where firmware is final. Enhanced -40C to +125C temperature grade ensures reliable operation in appliance thermal environments.
تجویز کردہ
Battery-Powered Remote Controls
With its 3.0 V minimum supply voltage and low-power CMOS design, the PIC16LC554T-04E/SO is ideal for handheld battery-powered remote controls including TV/STB remotes, garage door openers, and wireless sensor pushbuttons. The 80-byte RAM and 896-byte OTP are sufficient to implement IR transmission protocols (RC5, NEC, SIRC), button debouncing, and low-duty-cycle sleep strategies. Direct 3 V operation from two AA cells is supported without boost converters. The 4 MHz clock is more than adequate for typical IR carrier generation (36-56 kHz) and protocol timing. Enhanced temperature grade suits outdoor remotes such as automatic gate controls.
تجویز کردہ
LED Lighting Controllers
The PIC16LC554T-04E/SO can drive decorative LED lighting controllers, Christmas light sequencers, aquarium lighting timers, and architectural RGB color-mixing fixtures. Its 13 GPIO pins can source/sink 20 mA each to directly drive small LED arrays, while PWM outputs implemented in firmware (using the 8-bit timer with software PWM) can implement dimming and color sequencing. Operating from 3.0 V supports direct 3.3 V LED driver interfaces, while 5 V operation can directly drive logic-level MOSFETs. The OTP memory locks the lighting pattern against accidental firmware corruption. The -40C to +125C range supports both indoor and outdoor lighting installations.
تجویز کردہ
Industrial Timer and Counter Modules
In industrial control panels, the PIC16LC554T-04E/SO can implement stand-alone timer relays, production-line cycle counters, machine uptime loggers, and conveyor sequencing modules. The hardware watchdog timer (WDT) with on-chip RC oscillator provides reliable fault recovery, while the 8-bit timer/counter captures events up to 4 MHz. The 3.0-6.25 V supply range accepts both 5 V logic signals and 24 V industrial rails when used with external regulators. The -40C to +125C temperature range handles factory-floor conditions. 13 GPIO easily accommodates 4-digit displays, pushbutton inputs, and relay outputs without external logic.
تجویز کردہ
Automotive Body Electronics Sub-Modules
The PIC16LC554T-04E/SO can be deployed in non-safety automotive body electronics sub-modules such as interior lighting controllers, seat-position memories, accessory timers, and aftermarket alarm system interfaces. The enhanced -40C to +125C temperature grade handles under-dash thermal conditions. With 3.0-6.25 V operation, the device can be powered directly from 5 V regulators in the body control module. The OTP memory and 896B program space accommodate the typical state-machine logic for these sub-modules. Note: this part is NOT AEC-Q100 qualified - for safety-critical or AEC-Q100-required systems, use Microchip's eXtreme Low Power (XLP) AEC-Q100 parts.
تجویز کردہ
Sensor Signal Conditioning Front-Ends
The PIC16LC554T-04E/SO can implement low-cost sensor signal conditioning front-ends for thermostats, water-level detectors, simple humidity indicators, and proximity-sensor pulse counters. The 13 GPIO can directly read digital sensors, while firmware-implemented sigma-delta or dual-slope ADC techniques can read analog sensors using just a couple of GPIO and a precision reference. The 80-byte RAM supports moving-average filtering for noisy sensor channels. Operating from 3.0 V suits 3.3 V sensors directly. The enhanced temperature grade accommodates industrial sensor housings and outdoor environmental monitoring equipment.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16LC554T-04E/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16LC554-04I/SO | PIC16LC554T-04/SO | PIC16LC554-04/SO | PIC16LC54AT-04I/SO | PIC16LC54CT-04I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Program Memory | 896 B (512 x 14) OTP | 896 B OTP - same | 896 B OTP - same | 896 B OTP - same | 512 B OTP (-43%) | 768 B OTP (-14%) |
| RAM Size | 80 B | 80 B - same | 80 B - same | 80 B - same | 32 B (-60%) | 48 B (-40%) |
| Maximum Clock Speed | 4 MHz | 4 MHz - same | 4 MHz - same | 4 MHz - same | 4 MHz - same | 4 MHz - same |
| Supply Voltage Range | 3.0 V to 6.25 V | 3.0 V to 6.25 V - same | 3.0 V to 6.25 V - same | 4.0 V to 6.25 V (non-LC) | 3.0 V to 6.25 V - same | 3.0 V to 6.25 V - same |
| GPIO Count | 13 | 13 - same | 13 - same | 13 - same | 12 (-1) | 12 (-1) |
| Temperature Grade | -40C to +125C (E enhanced) | -40C to +85C (I industrial) | 0C to +70C (commercial) | 0C to +70C (commercial) | -40C to +85C (I industrial) | -40C to +85C (I industrial) |
اہم امتیازی خصوصیات
- Widest operating voltage in PIC16C5X OTP family (بمقابلہPIC16LC554-04/SO (non-LC variant))
- Enhanced -40C to +125C temperature grade (بمقابلہPIC16LC554-04I/SO (industrial grade))
- Largest program memory in 18-pin PIC16C5X family (بمقابلہPIC16LC54AT-04I/SO (PIC16C54A variant))
ڈیزائن نوٹس
Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 14) with a short, direct trace to the VSS ground pin (pin 5). For designs with high-current GPIO switching (driving relays or LEDs), add a bulk 10 uF tantalum or aluminum capacitor near the MCU. The PIC16LC554 has no internal POR delay beyond the 72 ms nominal power-up timer - if your supply rise time is slow (<10 ms), add external RC delay on MCLR to avoid out-of-spec oscillator startup behavior.
OTP (One-Time-Programmable) memory cannot be erased or rewritten. Validate firmware exhaustively using a Flash-equivalent PIC16F-series emulator or a windowed CERDIP PIC16C554JW before committing to OTP mask programming. Common pitfalls include: (1) forgetting to enable the watchdog timer in firmware despite hardware presence, (2) using OSC1 without proper load capacitors (15-33 pF typical for XT mode), (3) leaving MCLR floating (must be pulled high through 10 kOhm), and (4) exceeding 25 mA total VDD sink current when driving multiple high-current loads.
For the 18-SOIC package, follow standard SOIC PCB layout: 0.050 inch (1.27 mm) pin pitch, 0.024 inch (0.6 mm) via drill for fanout, exposed copper pad (not used on SOIC) - thermal dissipation is via the SOIC leads only. Keep high-speed traces (e.g., oscillator signals on OSC1/OSC2) short and surround them with a ground guard ring. The PIC16LC554 has no onboard debug interface - plan for in-circuit programming (ICSP) access to MCLR, VDD, VSS, RB6 (clock), and RB7 (data) using a 5-pin header footprint.
The PIC16LC554's I/O pins have TTL-compatible input thresholds (0.8 V low / 2.0 V high at 5 V VDD) but CMOS-compatible output swing. When interfacing 3.3 V sensors, verify the Vih minimum is met at your VDD level. At 3.0 V VDD, input thresholds are 0.15*VDD = 0.45 V low and 0.85*VDD = 2.55 V high - signals from 3.3 V devices work reliably but signals from 5 V devices will exceed absolute maximum ratings and must be level-shifted. GPIO pins can source/sink 20 mA continuously but total package dissipation must stay below 800 mW.
تعمیل کی معلومات
Lifecycle is ACTIVE per DigiChip datasheet listing. RoHS, REACH, lead-free, halogen-free status not provided in verified web data - set to unknown. The 'E' suffix denotes enhanced temperature grade but is NOT AEC-Q100 automotive qualification; for AEC-Q100-qualified applications use Microchip's dedicated automotive product lines.