PIC16LV54A-02I/SS - 8-bit 2MHz 768B OTP MCU | Microchip | SSOP-20
N.º de pieza: PIC16LV54A-02I/SS ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.85 | $1,85 |
| 10 | $1.67 | $16,70 |
| 100 | $1.42 | $142,00 |
| 500 | $1.2 | $600,00 |
| 1.000 | $1.05 | $1.050,00 |
PIC16LV54A-02I/SS Descripción general
What is an 8-bit OTP microcontroller? An OTP microcontroller is a single-chip computer with non-volatile program memory that can be written once and read many times, combining a CPU core, RAM, ROM/EPROM, and peripherals on one die. The PIC16C5x family uses a 12-bit-wide instruction set and an 8-bit data path, providing 2:1 code compression over typical 8-bit MCUs. These MCUs sit inside the broader microcontroller -> RISC -> embedded controller -> semiconductor taxonomy and are descendants of Harvard-architecture microcontrollers.
Key features include a hardware two-level deep stack, direct/indirect/relative addressing modes, an 8-bit real-time clock/counter (TMR0), power-on reset, watchdog timer, and a programmable code-protect bit. The RISC instruction set executes one instruction per instruction cycle (typically four oscillator clocks at 2 MHz), enabling deterministic interrupt response. The device runs from a single supply rail and supports low-power operation suited to battery-backed or always-on control nodes.
Architecture-wise the PIC16LV54A-02I uses a separate code and data space (Harvard architecture) with 12-bit opcodes, an ALU working on 8-bit data, and seven or eight Special Function Registers (SFRs) controlling I/O direction, timers, and reset. Compared to the original PIC16C54, the 'A' revision adds enhanced oscillator stability and the 'LV' (low-voltage) suffix extends operation down to 2.0 V, making it suitable for 2xAA battery or 3.3 V regulated systems.
Typical applications include appliance controls, automotive sub-systems, low-cost sensor interfaces, IR remote transmitters, LED drivers, and battery-powered consumer products. It also fits industrial logic-replacement and small white-goods control boards. A common design tip: provide a decoupling capacitor of 0.1 uF close to VDD and use a 4 MHz ceramic resonator or crystal when higher-speed external timing is needed. This page synthesizes distributor pricing, drop-in PIC16C5x family alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para PIC16LV54A-02I/SS — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC16LV54A-02I/SS (mismo factor de forma y huella) — difiere en Program Memory Type, Program Memory Size, Package, Operating Temperature, Timers.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16LV54AT-02I/SS
✅ Sustitución directa✓ En stock
$1.85 / unidad
Ver hoja de datos →PIC16C54A-02I/SS
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16C54C-04I/SS
✅ Sustitución directa✓ En stock
$1.34 / unidad
Ver hoja de datos →PIC16C54C-04/SS
✅ Sustitución directa✓ En stock
$0.65 / unidad
Ver hoja de datos →PIC16F54-I/SS
✅ Sustitución directa✓ En stock
$0.68 / unidad
Ver hoja de datos →PIC16LV54A-02I/SS Valores máximos y características eléctricas
| Architecture | PIC16C5x, 8-bit RISC, Harvard |
| Core | PIC16 |
| Instruction Set Width | 12-bit |
| Data Path Width | 8-bit |
| Maximum Clock Speed | 2 MHz |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 768 B (512 x 12) |
| RAM | 25 B |
| I/O Pins | 12 |
| Stack Depth | 2 levels (hardware) |
| Timers | 1 x 8-bit (TMR0) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| Temperatura de funcionamiento | -40 C to +85 C (Industrial) |
| Encapsulado | 20-pin SSOP (Shrink Small Outline Package) |
| Tipo de montaje | Surface Mount |
| Estado del ciclo de vida | Active |
| Estado RoHS | Compliant |
Configuración de pines de PIC16LV54A-02I/SS
| Pin 1 | RA2 — Bidirectional I/O pin; analog input on some PIC16C5x variants |
| Pin 2 | RA3 — Bidirectional I/O pin |
| Pin 3 | RA4/T0CKI — Bidirectional I/O; TMR0 clock input |
| Pin 4 | /MCLR — Master Clear (reset) input, active-low |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0/INT — Bidirectional I/O; external interrupt input |
| Pin 7 | RB1 — Bidirectional I/O pin |
| Pin 8 | RB2 — Bidirectional I/O pin |
| Pin 9 | RB3 — Bidirectional I/O pin |
| Pin 10 | RB4 — Bidirectional I/O pin |
| Pin 11 | RB5 — Bidirectional I/O pin |
| Pin 12 | RB6 — Bidirectional I/O pin |
| Pin 13 | RB7 — Bidirectional I/O pin |
| Pin 14 | VSS — Ground reference (second VSS pin) |
| Pin 15 | OSC2/RA6 — Oscillator output; also RA6 I/O on some variants |
| Pin 16 | OSC1/RA7 — Oscillator input; also RA7 I/O on some variants |
| Pin 17 | RA0 — Bidirectional I/O pin |
| Pin 18 | RA1 — Bidirectional I/O pin |
| Pin 19 | VDD — Positive supply voltage (2.0 V to 5.5 V) |
| Pin 20 | NC — Not connected (per SSOP-20 package outline) |
Aplicaciones típicas
PIC16LV54A-02I/SS es adecuado para 7 aplicacións: Low-Cost Appliance Control, Battery-Powered IR Remote Control, Automotive Sub-System Controller, Sensor Interface Module, LED Lighting Driver, Industrial Logic Replacement, Consumer Toy and Hobby Electronics.
Low-Cost Appliance Control
The PIC16LV54A-02I/SS fits low-cost appliance control because its 2.0-5.5 V VDD range handles 3.3 V regulated rails or 2xAA battery stacks directly, while 12 GPIO pins drive relays, LEDs, and button matrices. The 768B OTP stores fixed control code for washing-machine cycles, toaster timings, or rice-cooker thermal profiles without external memory. The 25B RAM is enough for state-machine variables and timer counts, and the 8-bit TMR0 gives sub-second timing resolution. Compared to a discrete logic-replacement design, the PIC16LV54A-02I/SS reduces PCB area and enables single-chip firmware upgrades through the OTP programming interface.
Recomendado
Battery-Powered IR Remote Control
For IR remote controls, the PIC16LV54A-02I/SS is well suited because the 'LV' suffix enables 2.0 V operation from a single CR2032 coin cell, extending battery life versus 5 V-only designs. The 2 MHz core executes PWM generation for 38 kHz IR carrier modulation at sufficient resolution, while the 8-bit TMR0 can be reloaded in software to produce NEC or RC5 protocol timings. Low sleep current plus 2-level hardware stack keep wake-from-IR responsiveness under 100 us. Place a 0.1 uF decoupling capacitor within 5 mm of VDD to prevent brown-out during battery sag, and use a single GPIO pin to drive the IR LED through a BJT driver.
Recomendado
Automotive Sub-System Controller
The PIC16LV54A-02I/SS operates from -40C to +85C industrial grade and supports automotive sub-system roles such as seat-position encoders, mirror-adjust switches, or interior LED dimmers. Its 2 MHz core and 768B OTP can hold fixed protocol handlers for LIN-like local-interconnect signaling when paired with an external LIN transceiver. The 12 I/O pins support 4-bit switch matrix inputs and 8-channel LED driver outputs. For under-the-hood applications above 85C, upgrade to the AEC-Q100-qualified PIC16F family. The /I (industrial) suffix in the part number confirms the -40 to +85C operating range required for cabin electronics.
Recomendado
Sensor Interface Module
In sensor interface modules, the PIC16LV54A-02I/SS reads analog sensors via an external ADC and forwards digital readings over GPIO bit-banged UART or one-wire protocols. The 25B RAM accommodates averaging buffers for thermistor or photodiode readings, while the 8-bit TMR0 establishes precise sampling intervals. With 768B OTP, designers can implement calibration lookup tables for accurate temperature-to-digital conversion. The 2.0 V VDD minimum lets the device operate directly from a single 1.5 V cell boosted by a low-cost charge pump, ideal for remote sensor nodes that need years of battery life.
Recomendado
LED Lighting Driver
The PIC16LV54A-02I/SS drives LED arrays via PWM generated by TMR0 interrupts and 12 GPIO pins, providing up to 8 channels of software PWM at 100 Hz refresh for color-mixing or brightness control. The 768B OTP holds fixed lighting patterns and DMX-512-like receiving routines for stage lighting fixtures. The 2.0-5.5 V VDD range works directly from 3.3 V LED driver rails, simplifying power architecture. The SSOP-20 package fits inside small MR16 lamp form factors where PCB area is constrained. Each GPIO can source/sink 25 mA, sufficient for direct low-current LED drive without external transistors.
Recomendado
Industrial Logic Replacement
For industrial logic-replacement applications, the PIC16LV54A-02I/SS consolidates discrete 74HC logic gates, latches, and timers into a single 20-pin SSOP package, reducing board area and improving long-term availability of legacy functions. The 2 MHz core handles simple state machines, debounced input polling, and pulse-train generation at up to 500 kHz. With 12 I/O pins, designers can replace 3-5 standard logic packages per node while keeping pin counts manageable. The -40 to +85C industrial temperature range tolerates factory-floor environments, and the OTP memory prevents field firmware tampering.
Recomendado
Consumer Toy and Hobby Electronics
The PIC16LV54A-02I/SS is well suited to consumer toy electronics where sub-$1 BOM targets and minimal external parts drive cost decisions. The 768B OTP stores fixed sound-effect triggers, LED chase patterns, and motor PWM sequences for toy vehicles and educational kits. The 2.0 V minimum VDD lets designers power the MCU from a single Li-ion cell or 2xAA pack, while the SSOP-20 footprint saves space versus PDIP alternatives. The RISC instruction set compresses code 2:1 versus standard 8-bit MCUs, allowing rich behaviors in only 512 instruction slots. Designers can use the same MCU across multiple toy SKUs by changing only the OTP image.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16LV54A-02I/SS — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16LV54AT-02I/SS | PIC16C54A-02I/SS | PIC16C54C-04I/SS | PIC16C54C-04/SS | PIC16F54-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-20 | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same |
| Maximum Clock Speed | 2 MHz | 2 MHz | 2 MHz | 4 MHz | 4 MHz | 20 MHz |
| Program Memory Type | OTP | OTP | OTP | OTP | OTP | Flash |
| Program Memory Size | 768 B | 768 B | 768 B | 768 B | 768 B | 512 B (Flash) |
| RAM | 25 B | 25 B | 25 B | 25 B | 25 B | 25 B |
| I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 |
| Supply Voltage (VDD) | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 2.0 V to 5.5 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | 0 C to +70 C | -40 C to +85 C |
Diferenciadores clave
- Low-voltage 2.0 V VDD minimum extends to single-cell battery operation (frente a PIC16C54A-02I/SS)
- Optimized 2 MHz speed grade reduces power consumption vs 4 MHz grade (frente a PIC16C54C-04I/SS)
- Higher code density per instruction reduces OTP burn cost (frente a PIC16F54-I/SS)
- Same SSOP-20 footprint across full PIC16C5x family for platform reuse (frente a PIC16LV54AT-02I/SS)
Notas de diseño
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 19) and connect VSS (pins 5 and 14) directly to a ground plane. For battery-powered designs operating near 2.0 V, add a 10 uF bulk capacitor at the cell terminal to prevent brown-out during transmit-current spikes (IR LEDs, motor drivers). Estimate: a 100 mA spike with 10 ohm ESR battery drops ~1 V, so bulk capacitance prevents VDD from collapsing below BOR threshold. Use the internal POR/BOR circuit to ensure clean reset on power-up; do not rely on slow-rising VDD for proper initialization.
OTP memory cannot be erased - once programmed, the PIC16LV54A-02I/SS is locked to that code. Designers must prototype with PIC16F54-I/SS (same SSOP-20 footprint, flash memory) before committing to the OTP version for production. Estimated: a single programming mistake costs a $1+ device plus rework time. Always read back the OTP image via the ICSP interface after programming to verify each word matches expected values. For development boards, leave the /MCLR pin accessible for in-circuit serial programming (ICSP) entry.
Route the oscillator traces (OSC1 pin 16, OSC2 pin 15) as short and symmetric as possible, with the crystal or resonator within 5 mm of the MCU. Add a 4.7 kohm pull-up on /MCLR (pin 4) to prevent spurious resets from noise. For RC oscillator mode, place the resistor and capacitor close to OSC1/RA7 to minimize jitter. The SSOP-20 thermal pad is the central exposed pad; connect it to VSS for improved thermal dissipation if the device drives high-current loads through multiple GPIO pins.
GPIO pins can source/sink up to 25 mA each, but the total package dissipation budget is typically 200 mA across all pins combined. Estimate: driving 8 LEDs at 20 mA each = 160 mA, leaving only 40 mA for the remaining 4 pins - well within limits. For motor or relay drive, use external BJT or MOSFET drivers rather than direct GPIO drive to extend device life. The PIC16LV54A-02I/SS does not have Schmitt-trigger inputs on all pins; add external RC filtering for slow-rising signals from mechanical switches.
Información de cumplimiento
RoHS compliant per Microchip product page. Lead-free SSOP-20 package. Not AEC-Q100 qualified; for AEC-Q100 automotive applications, upgrade to PIC16F family automotive-grade variants.
