PIC16LC554T-04E/SO - 8-Bit 4MHz OTP MCU 896B | Microchip
부품 번호: PIC16LC554T-04E/SO ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.62 | $262.00 |
| 500 | $2.35 | $1,175.00 |
| 1,000 | $2.1 | $2,100.00 |
PIC16LC554T-04E/SO 개요
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.
드롭인 대체품: PIC16LC554T-04E/SO — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16LC554T-04E/SO (동일 폼 팩터 및 풋프린트) — 차이점: Core Architecture, Program Memory Size, Operating Temperature Range, Watchdog Timer, Program Memory Type.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16LC554-04I/SO
✅ 드롭인✓ 재고 있음
$2.12 / 개
데이터시트 보기 →PIC16LC554T-04/SO
✅ 드롭인✓ 재고 있음
$3.85 / 개
데이터시트 보기 →PIC16LC554-04/SO
✅ 드롭인✓ 재고 있음
$2.04 / 개
데이터시트 보기 →PIC16LC54AT-04I/SO
✅ 드롭인✓ 재고 있음
$1.78 / 개
데이터시트 보기 →PIC16LC54CT-04I/SO
✅ 드롭인✓ 재고 있음
$1.62 / 개
데이터시트 보기 →PIC16LC554T-04E/SO 최대 정격 & 전기적 특성
| 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 |
| 패키지 | 18-SOIC (7.50 mm body width) |
| 실장 유형 | Surface Mount |
| 동작 온도 범위 | -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 핀 구성
| 핀 1 | RA2 — Bidirectional I/O port A bit 2 |
| 핀 2 | RA3 — Bidirectional I/O port A bit 3 |
| 핀 3 | T0CKI — Timer 0 clock input / RA4 |
| 핀 4 | MCLR — Master clear reset input (active low) |
| 핀 5 | VSS — Ground reference |
| 핀 6 | RB0 — Bidirectional I/O port B bit 0 |
| 핀 7 | RB1 — Bidirectional I/O port B bit 1 |
| 핀 8 | RB2 — Bidirectional I/O port B bit 2 |
| 핀 9 | RB3 — Bidirectional I/O port B bit 3 |
| 핀 10 | RB4 — Bidirectional I/O port B bit 4 |
| 핀 11 | RB5 — Bidirectional I/O port B bit 5 |
| 핀 12 | RB6 — Bidirectional I/O port B bit 6 |
| 핀 13 | RB7 — Bidirectional I/O port B bit 7 |
| 핀 14 | VDD — Positive supply voltage |
| 핀 15 | OSC2 — Oscillator output / CLKOUT |
| 핀 16 | OSC1 — Oscillator input / CLKIN |
| 핀 17 | RA0 — Bidirectional I/O port A bit 0 |
| 핀 18 | RA1 — Bidirectional I/O port A bit 1 |
일반적인 애플리케이션
PIC16LC554T-04E/SO 적합 용도: 6 애플리케이션s: 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.
추천
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.
추천
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.
추천
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.
추천
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.
추천
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.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16LC554T-04E/SO — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 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) |
주요 차별점
- Widest operating voltage in PIC16C5X OTP family (vs PIC16LC554-04/SO (non-LC variant))
- Enhanced -40C to +125C temperature grade (vs PIC16LC554-04I/SO (industrial grade))
- Largest program memory in 18-pin PIC16C5X family (vs PIC16LC54AT-04I/SO (PIC16C54A variant))
설계 노트
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.
규정 준수 정보
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.