PIC16LC554T-04E/SS - 8-Bit 4MHz OTP MCU, 20-SSOP | Microchip
Teilenummer: PIC16LC554T-04E/SS ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $2.45 | $2,45 |
| 10 | $2.18 | $21,80 |
| 100 | $1.92 | $192,00 |
| 500 | $1.71 | $855,00 |
| 1.000 | $1.55 | $1.550,00 |
PIC16LC554T-04E/SS Übersicht
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (ROM/RAM), and peripherals on one die. The PIC16C5X family uses Microchip's original 12-bit instruction word RISC architecture, designed for low-cost, deterministic embedded control. Within the broader taxonomy, an 8-bit MCU belongs to the microcontroller family, itself a subcategory of microprocessors and semiconductors. Compared with 16-bit and 32-bit MCUs, 8-bit parts trade raw computational throughput for simplicity, predictable interrupt latency, and very low cost-per-pin, making them ideal for high-volume appliance, industrial, and automotive sub-system designs.
Key features of the PIC16LC554 include 4 MHz operation, 896 bytes (512 x 14) of One-Time-Programmable (OTP) program memory, 80 bytes of RAM, 13 I/O pins, and the special-function peripherals characteristic of the PIC16C5X family: Power-on Reset (POR), Power-up Timer (PWRT), Oscillator Start-up Timer (OST), and a Watchdog Timer (WDT). The architecture uses a 12-bit instruction word with single-cycle execution on most instructions except branches, providing deterministic timing for control loops.
The device is fabricated on a CMOS process optimized for low power dissipation and wide supply tolerance. Its RISC core executes 33 single-word instructions and supports 8-bit data paths with a hardware accumulator and a multi-source interrupt structure. Program memory is OTP, meaning each device is programmed once at production time and cannot be field-updated; designers use windowed or UV-erasable CERDIP samples for prototype development.
Typical applications include white-goods and appliance control, automotive body electronics, sensor signal conditioning, low-end user-interface panels, battery chargers, and simple closed-loop motor or valve controllers. The 20-SSOP footprint and 13 I/O make it well suited to compact through-hole-replacement designs migrating from older 16C54/16C55 generations.
Designers should note that OTP program memory cannot be reprogrammed in-circuit; for prototyping, use the JW (windowed CERDIP) variant. The 4 MHz clock ceiling limits instruction throughput to approximately 1 MIPS, so reserve this MCU for control tasks rather than DSP or high-bandwidth communication. Ensure the chosen oscillator mode (RC, XT, LP, HS) matches the resonator and load capacitance specified in the datasheet electrical characteristics table.
This page synthesizes distributor pricing, drop-in alternatives from the same PIC16C5X family, application-specific recommendations, and practical design notes not found in the manufacturer datasheet alone.
Drop-in-Alternativen für PIC16LC554T-04E/SS – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16LC554T-04E/SS (gleiche Bauform und Footprint) – abweichend in Program Memory Size, Program Memory Type, RoHS Status, Core Architecture, Operating Temperature Range.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16LC554T-04/SS
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LC554-04I/SS
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LC554-04E/SS
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LC54AT-04E/SS
✅ Drop-In✓ Auf Lager
$1.9 / Stück
Datenblatt ansehen →PIC16LC54CT-04I/SS
✅ Drop-In✓ Auf Lager
$1.4 / Stück
Datenblatt ansehen →PIC16LC505T-04/SL
✅ Drop-In✓ Auf Lager
$0.55 / Stück
Datenblatt ansehen →PIC16LC554T-04E/SS Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC16C5X (12-bit instruction word RISC) |
| Datenbusbreite | 8 bit |
| Maximale Taktfrequenz | 4 MHz |
| Program Memory Size | 896 B (512 x 14 words) |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| Data RAM Size | 80 B |
| I/O Pins | 12 to 13 |
| Supply Voltage Range | 3.0 V to 6.25 V |
| Typical Supply Voltage | 3.3 V / 5 V |
| Gehäuse | 20-pin SSOP (5.30 mm / 0.209 in width) |
| Montageart | Surface Mount |
| Betriebstemperaturbereich | -40 C to +85 C (industrial, 'E' suffix family) |
| Instruction Set | 33 single-word instructions |
| Special Features | POR, PWRT, OST, WDT (Watchdog Timer) |
| Peripherals | 8-bit Timer/Counter with 8-bit programmable prescaler |
| RoHS-Status | Compliant (per Microchip product page) |
| Lead-Free | Yes |
| MSL-Level | 1 (unlimited floor life at <30 C / 85% RH) |
| Delivery Form | Tape & Reel (T suffix) |
PIC16LC554T-04E/SS Pin-Konfiguration
| Pin 1 | RA2 — Bidirectional I/O port A bit 2 |
| Pin 2 | RA3 — Bidirectional I/O port A bit 3 |
| Pin 3 | RA4/T0CKI — Bidirectional I/O port A bit 4 / Timer0 clock input |
| Pin 4 | MCLR/VPP — Master Clear reset (active low) / Programming voltage input |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0/INT — Bidirectional I/O port B bit 0 / External interrupt input |
| Pin 7 | RB1 — Bidirectional I/O port B bit 1 |
| Pin 8 | RB2 — Bidirectional I/O port B bit 2 |
| Pin 9 | RB3 — Bidirectional I/O port B bit 3 |
| Pin 10 | RB4 — Bidirectional I/O port B bit 4 |
| Pin 11 | RB5 — Bidirectional I/O port B bit 5 |
| Pin 12 | RB6 — Bidirectional I/O port B bit 6 |
| Pin 13 | RB7 — Bidirectional I/O port B bit 7 |
| Pin 14 | VDD — Positive supply voltage (3.0 V to 6.25 V) |
| Pin 15 | OSC2/CLKOUT — Oscillator output / Clock output (crystal mode) or RC clock out |
| Pin 16 | OSC1/CLKIN — Oscillator input / External clock input |
| Pin 17 | RA0 — Bidirectional I/O port A bit 0 |
| Pin 18 | RA1 — Bidirectional I/O port A bit 1 |
| Pin 19 | VSS — Ground reference (secondary) |
| Pin 20 | VDD — Positive supply voltage (secondary) |
Typische Anwendungen
PIC16LC554T-04E/SS ist geeignet für 6 Anwendungs: White-Goods Appliance Control, Automotive Body Electronics Sub-modules, Industrial Sensor Signal Conditioning, Battery Chargers and Power Management Front-Ends, User Interface Keypad and LED Drivers, Simple Closed-Loop Valve and Motor Controllers.
White-Goods Appliance Control
The PIC16LC554T-04E/SS fits white-goods appliance control boards (washing machines, dishwashers, microwave ovens, refrigerators) where cost is paramount and the control algorithm is simple. Its 4 MHz clock, 896 B OTP program memory, and 13 I/O pins are sufficient to drive relays, read keypads, and sequence indicator LEDs. The 20-SSOP package enables compact board layouts inside tight appliance enclosures, while the 3.0 V to 6.25 V supply range tolerates unregulated wall-adapter-derived rails.
Empfohlen
Automotive Body Electronics Sub-modules
The PIC16LC554T-04E/SS is used in non-safety automotive sub-modules such as seat controllers, mirror adjusters, climate-control flaps, and interior lighting drivers. Its 4 MHz throughput and 80 B RAM support PID-like control loops and debounced switch scanning, while 13 I/O pins comfortably drive relays and H-bridges. The 3.0 V to 6.25 V supply range tolerates 12 V battery cranking transients when paired with a simple LDO; AEC-Q100 grade is not required for these comfort features.
Empfohlen
Industrial Sensor Signal Conditioning
The PIC16LC554T-04E/SS serves as a low-cost digital front-end for industrial sensor modules including thermocouple cold-junction compensation boards, 4-20 mA loop transmitters, and proximity-sensor interface cards. The 4 MHz core handles linearization table lookups, digital filtering, and HART or Modbus framing with the on-chip UART. The 13 I/O pins drive status LEDs, accept digital setpoints, and read the analog sensor through an external ADC; OTP memory prevents accidental field reprogramming.
Empfohlen
Battery Chargers and Power Management Front-Ends
The PIC16LC554T-04E/SS is a fit for low-end NiCd/NiMH/Li-ion charger controllers where the algorithm is fixed and OTP is acceptable for production. The 4 MHz core, 80 B RAM, and 13 I/O pins drive the charge FET, monitor V/I via external comparators, time CC/CV transitions, and communicate state through an LED bar. The wide 3.0 V to 6.25 V supply range accepts input from USB or 6 V wall adapters without an extra LDO stage.
Empfohlen
User Interface Keypad and LED Drivers
The PIC16LC554T-04E/SS handles matrix-keypad scanning and Charlieplexed LED driving in remote controls, security keypads, and small appliance front panels. With 13 I/O pins it can scan up to a 4x4 keypad while driving up to 12 Charlieplexed LEDs without external drivers, saving BOM cost. The 4 MHz clock debounces keys in software and refreshes LEDs at >100 Hz to avoid flicker; the 20-SSOP footprint is compact enough to fit behind the panel bezel.
Empfohlen
Simple Closed-Loop Valve and Motor Controllers
The PIC16LC554T-04E/SS implements small closed-loop controllers for solenoid valves, stepper-driven dampers, and BLDC or brushed-DC motor speed regulators. The 4 MHz core runs a 1 kHz PID loop with 80 B RAM sufficient for the controller state and a few tuning constants. The on-chip 8-bit timer/counter with programmable prescaler generates PWM up to 10 kHz at 8-bit resolution for smooth motor control, while 13 I/O pins accept encoder feedback and drive H-bridge FETs.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16LC554T-04E/SS – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16LC554T-04/SS | PIC16LC554-04I/SS | PIC16LC554-04E/SS | PIC16LC54AT-04E/SS | PIC16LC54CT-04I/SS | PIC16LC505T-04/SL |
|---|---|---|---|---|---|---|---|
| Package | 20-SSOP (5.30 mm) | 20-SSOP (5.30 mm) - same | 20-SSOP (5.30 mm) - same | 20-SSOP (5.30 mm) - same | 20-SSOP - same | 20-SSOP - same | 20-SOIC (7.50 mm) - wider body |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | PIC16C5X 12-bit RISC | PIC16C5X 12-bit RISC | PIC16C5X 12-bit RISC | PIC16C5X 12-bit RISC | PIC16C5X 12-bit RISC | PIC16C5X 12-bit RISC | PIC16C5X 12-bit RISC |
| Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory | 896 B (512 x 14 OTP) | 896 B (512 x 14 OTP) | 896 B (512 x 14 OTP) | 896 B (512 x 14 OTP) | 512 B (-43%) | 512 B (-43%) | ~1 K word (14-bit OTP) |
| RAM | 80 B | 80 B | 80 B | 80 B | 25 B (-69%) | 25 B (-69%) | 72 B (-10%) |
| I/O Pins | 12 to 13 | 12 to 13 | 12 to 13 | 12 to 13 | 12 | 12 | 12 |
| Supply Voltage Range | 3.0 V to 6.25 V | 3.0 V to 6.25 V | 3.0 V to 6.25 V | 3.0 V to 6.25 V | 3.0 V to 6.25 V | 3.0 V to 6.25 V | 2.0 V to 6.25 V |
| Delivery Form | Tape & Reel | Tape & Reel | Tube / Tray | Tube / Tray | Tape & Reel | Tape & Reel | Tape & Reel |
Wichtigste Unterscheidungsmerkmale
- Largest OTP memory in the PIC16C5X sub-family at this price point (vs. PIC16LC54AT-04E/SS)
- Industrial temperature range with full silicon revision maturity (vs. PIC16LC554T-04/SS)
- Same die and pinout as production -04I variant (vs. PIC16LC554-04I/SS)
Designhinweise
Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 20 or 14) and a bulk 10 uF tantalum or aluminum electrolytic capacitor on the same supply rail. The PIC16LC554T-04E/SS can source/sink 20 mA per pin and up to 200 mA total across VDD/VSS; total power dissipation must be kept below 800 mW to avoid latch-up. For battery-powered applications, use the internal WDT and SLEEP mode to drop quiescent current below 1 uA.
Choose the oscillator mode (LP, XT, HS, RC) that matches the resonator per the datasheet's C1/C2 load-capacitance table. For 4 MHz XT operation with a standard quartz crystal, use 22 to 33 pF load capacitors on OSC1 (pin 16) and OSC2 (pin 15). RC mode is acceptable for cost-sensitive designs but tolerates only +/- 5 to 10 percent frequency drift over temperature; HS mode is required for clock frequencies above 4 MHz and is not supported on the -04 speed grade.
The PIC16LC554T-04E/SS is OTP (One-Time Programmable) and cannot be erased or reprogrammed in-circuit. For prototyping and field-debug work, order the JW windowed CERDIP variant of the PIC16C554 and erase it under UV light. Production units programmed in OTP must have their CONFIG fuses (watchdog enable, oscillator mode, code protect) blown in the same programming step; re-programming after code-protect is set is impossible by design.
The 20-SSOP package has a pin pitch of 0.65 mm and a body width of 5.30 mm; ensure the PCB land pattern matches the SSOP-20 (JEDEC MO-150 standard) footprint exactly. Allow at least 5 mm of copper pour under and around the device for thermal spreading. Avoid routing high-speed signals (UART, SPI, PWM) directly under the SSOP body to minimize capacitive coupling into the oscillator traces; keep oscillator traces short and guard them with a ground ring.
The PIC16LC554T-04E/SS has TTL-compatible digital inputs with VIH >= 2.0 V and VIL <= 0.8 V at 5 V supply. For mixed 3.3 V/5 V designs, place a 10 kohm pull-up to VDD on open-drain signals crossing between domains. The MCLR pin (pin 4) must have a 10 kohm pull-up to VDD and a 100 nF capacitor to VSS to filter noise; if MCLR is left floating the device can spuriously reset or fail to start on brown-out conditions.
Compliance-Informationen
RoHS and lead-free compliance per Microchip product page. This OTP part is not AEC-Q100 qualified; for AEC-Q100 Grade 1 automotive designs, use the PIC16F886/887 flash-based family instead. Halogen-free per Microchip environmental compliance documentation.
