PIC16LV54AT-02I/SS - 0.75KB OTP 8-bit MCU, 2MHz, SSOP-18
N.º de pieza: PIC16LV54AT-02I/SS ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.95 | $2,95 |
| 10 | $2.66 | $26,60 |
| 100 | $2.37 | $237,00 |
| 500 | $2.1 | $1.050,00 |
| 1.000 | $1.85 | $1.850,00 |
PIC16LV54AT-02I/SS Descripción general
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, non-volatile program memory, working RAM, digital I/O, and peripheral blocks such as timers and interrupts on one die. PIC16C5X-family devices sit at the low end of the Microchip PIC hierarchy, between base-line 8-bit controllers and the mid-range PIC16F family, and are commonly classified as EPROM/ROM-based 8-bit CMOS microcontrollers within the broader semiconductor > integrated circuit > microcontroller > 8-bit MCU taxonomy.
Key features of the PIC16LV54AT-02I/SS include seven (or eight, depending on variant) special-function hardware registers, a two-level hardware stack, direct/indirect/relative addressing for data and instructions, and an 8-bit real-time clock/counter (TMR0). The '02I' speed grade allows operation up to 2 MHz, and the 'I' industrial temperature range covers -40C to +85C. Power-saving SLEEP mode, a watchdog timer (WDT) with on-chip RC oscillator, and programmable code protection round out the feature set typical of this family.
Architecturally, the PIC16LV54A uses a RISC core with 33 single-word/12-bit instructions, an 8-bit ALU, and Harvard memory separation between program (12-bit wide) and data (8-bit wide) buses. The two-level hardware stack limits subroutine nesting to two levels but reduces context-switch overhead, while the absence of interrupts and the small register file keep the silicon small and the cost low - explaining why this device competes on price rather than feature density.
Typical applications include battery-powered sensor interfaces, low-speed consumer appliances, industrial timers and counters, replacement of discrete logic in 4-20 mA loops, simple motor-control PWM, remote controls, and any design where a handful of I/O and a few hundred bytes of OTP code suffice. Designers migrating from PIC16C54/CR58 silicon gain the low-voltage (3V) operation needed for portable lithium-cell applications.
When designing with this device, allocate I/O pin 4 (MCLR) for an external reset pull-up (or use the internal weak pull-up where present), place a 0.1 uF decoupling capacitor close to VDD, and verify oscillator start-up time against the application's worst-case supply ramp. Because the program memory is one-time programmable, code must be fully debugged in equivalent EPROM (windowed) prototypes before committing to the OTP mask.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving procurement and firmware engineers a single authoritative reference for sourcing and substituting the PIC16LV54AT-02I/SS.
Alternativas directas para PIC16LV54AT-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 PIC16LV54AT-02I/SS (mismo factor de forma y huella) — difiere en Package, Program Memory Size, I/O Pins, Mounting Type, Timers.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16LV54A-02I/SS
✅ Sustitución directa✓ En stock
$1.05 / unidad
Ver hoja de datos →PIC16LV54A-02I/P
✅ Sustitución directa✓ En stock
$1.18 / unidad
Ver hoja de datos →PIC16F54T-I/SS
✅ Sustitución directa✓ En stock
$0.34 / unidad
Ver hoja de datos →PIC16C54A-04I/P
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16CR54A-02I/SS
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16F54-E/SS
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16LV54AT-02I/SS Valores máximos y características eléctricas
| Program Memory Size | 0.75 KB (768 B) OTP |
| RAM Size | 25 B |
| CPU Core | PIC16C5X (8-bit RISC) |
| Instruction Width | 12-bit |
| Ancho del bus de datos | 8-bit |
| Frecuencia de reloj máxima | 2 MHz |
| I/O Pins | 12 |
| Timers | 1 x 8-bit (TMR0) |
| Hardware Stack Depth | 2 levels |
| Supply Voltage Range | 3 V to 5.5 V (LV variant) |
| Rango de temperatura de funcionamiento | -40 C to +85 C (Industrial) |
| Package Type | SSOP-20 (5.30 mm body width) |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
| Watchdog Timer | Yes (on-chip RC oscillator) |
| Program Memory Type | OTP (One-Time Programmable) EPROM/ROM-based |
| Code Protection | Programmable |
| Oscillator Type | External RC / XT / HS / LP (per PIC16C5X family) |
Configuración de pines de PIC16LV54AT-02I/SS
| Pin 1 | MCLR/VPP — Master Clear reset input / programming voltage |
| Pin 2 | OSC1/CLKIN — Oscillator input or external clock in |
| Pin 3 | OSC2/CLKOUT — Oscillator output or clock out (FOSC/4) |
| Pin 4 | RA0 — Port A bit 0 (bidirectional I/O) |
| Pin 5 | RA1 — Port A bit 1 (bidirectional I/O) |
| Pin 6 | RA2 — Port A bit 2 (bidirectional I/O) |
| Pin 7 | RA3 — Port A bit 3 (bidirectional I/O) |
| Pin 8 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input (open-drain) |
| Pin 9 | RA5 — Port A bit 5 (bidirectional I/O) |
| Pin 10 | RB0/INT — Port B bit 0 / external interrupt input |
| Pin 11 | RB1 — Port B bit 1 (bidirectional I/O) |
| Pin 12 | RB2 — Port B bit 2 (bidirectional I/O) |
| Pin 13 | RB3 — Port B bit 3 (bidirectional I/O) |
| Pin 14 | RB4 — Port B bit 4 (bidirectional I/O) |
| Pin 15 | RB5 — Port B bit 5 (bidirectional I/O) |
| Pin 16 | RB6 — Port B bit 6 (bidirectional I/O) |
| Pin 17 | RB7 — Port B bit 7 (bidirectional I/O) |
| Pin 18 | VDD — Positive supply (3.0 V to 5.5 V) |
| Pin 19 | GND — Ground reference |
| Pin 20 | NC — Not connected (per datasheet) |
Aplicaciones típicas
PIC16LV54AT-02I/SS es adecuado para 7 aplicacións: Battery-Powered Sensor Interface, Industrial Timer and Counter Module, Replacement of Discrete Logic in 4-20 mA Loops, Simple PWM Motor Speed Control, Remote Control and IR Emitter/Receiver Pair, Cost-Sensitive Appliance User Interface, Smart Sensor Edge Node (Legacy Retrofit).
Battery-Powered Sensor Interface
The PIC16LV54AT-02I/SS fits battery-powered sensor interfaces because its 3.0 V minimum supply enables direct connection to a single lithium coin cell (3.0-3.2 V) or 2xAA alkaline stack without a boost converter, while the 12 I/O pins can drive a sensor, an indicator LED, and a low-rate UART. With 768 bytes of OTP code storage, firmware handles initialization, periodic TMR0-driven sampling at 2 MHz, and a SLEEP/idle loop drawing microamp-level quiescent current. Compared with PIC16F54, the OTP-only architecture removes flash inrush current and reduces deep-sleep floor noise - ideal for PIR motion detectors, smoke-sensor front-ends, and smart-lock modules where BOM cost per unit outweighs the inability to reflash in field.
Recomendado
Industrial Timer and Counter Module
The PIC16LV54AT-02I/SS is a natural fit for industrial timer/counter modules because its 8-bit TMR0 with programmable prescaler (1:2 to 1:256) provides accurate timing at 2 MHz when paired with a 32.768 kHz crystal divided through the internal watchdog. The 12 I/O pins accommodate up/down counter inputs, relay drivers, and a status LED, while the -40 C to +85 C industrial temperature range survives factory-floor environments. In conveyor-control or HVAC-damper applications, the two-level hardware stack and 33 single-cycle instructions let the firmware debounce inputs, drive TRIAC outputs, and sequence relays without a real-time OS - a hallmark of PIC16C5X-family usage where deterministic timing beats RAM capacity.
Recomendado
Replacement of Discrete Logic in 4-20 mA Loops
The PIC16LV54AT-02I/SS replaces discrete logic gates in 4-20 mA current-loop transmitters because its 3.0 V minimum supply can be derived directly from a loop-powered regulator (such as a 3.3 V LDO after the 4 mA minimum bias), and its small 0.75 KB code space easily holds scaling, linearization, and HART-like bit-banging routines. With 12 I/O pins, the device reads a sensor, drives a DAC, and toggles a loop-keying transistor while running at 2 MHz - sufficient for the slow dynamics of process control loops. Compared with a CD4060/CD4017 logic-based design, integrating these functions in one MCU reduces PCB area by 60-70% and improves calibration flexibility without raising unit cost above $3.
Recomendado
Simple PWM Motor Speed Control
The PIC16LV54AT-02I/SS implements PWM motor speed control by toggling an I/O pin in software at a variable duty cycle, using TMR0 to set the period. Although the device lacks a dedicated PWM peripheral, the 2 MHz clock and 12-bit instruction path let firmware produce 1 kHz PWM with 8-bit resolution - adequate for low-power DC fans, small solenoid drivers, and RC-servo positioning where fine resolution is not required. The 3.0 V minimum supply matches single-cell Li-ion or 2xAA operation, while 12 I/O pins drive direction, brake, enable, and a tachometer input. Engineers choosing this device accept that PWM jitter is software-bound; for hardware-PWM precision, migrate to PIC16F54 or PIC16LF88T-I/SS.
Recomendado
Remote Control and IR Emitter/Receiver Pair
The PIC16LV54AT-02I/SS serves as the controller in low-cost IR remote controls because its 25-byte RAM and 768-byte OTP are sufficient for NEC/Sony/RC5 protocol encoding/decoding, while 12 I/O pins drive up to 64-key matrix scanning and an IR LED. The 3.0 V minimum supply lets the device run from 2xAAA cells for years of standby life. The 2 MHz oscillator is more than fast enough to generate 38 kHz carrier frequencies with adequate duty-cycle accuracy. The PIC16C5X family's small die also means low quiescent current (<1 mA active, low-uA SLEEP), extending remote battery life far beyond flash-based MCUs.
Recomendado
Cost-Sensitive Appliance User Interface
The PIC16LV54AT-02I/SS fits white-goods user interfaces (microwave keypads, washing-machine display panels, coffee-machine controllers) where its 12 I/O pins scan a 3x4 matrix keypad and drive a multiplexed 7-segment display, and its 768 bytes of OTP code store timing tables, debounce routines, and indicator patterns. The 3.0 V minimum supply accepts a single 3.3 V LDO from the appliance's rectified mains, and the -40 C to +85 C industrial temperature range survives kitchen and garage environments. Compared with mid-range PIC16F877 designs, this PIC16C5X part cuts BOM cost by 40-60% while delivering exactly the deterministic behavior that simple appliances need - no RTOS, no interrupts, no surprises.
Recomendado
Smart Sensor Edge Node (Legacy Retrofit)
The PIC16LV54AT-02I/SS acts as a smart sensor edge node in legacy retrofit installations where a new analog sensor is added to an existing 3.3 V system; the device samples the sensor via comparator/software-ADC, performs local thresholding, and signals back over a slow UART or one-wire interface. With 25 bytes of RAM, only simple moving averages fit, but at slow sample rates (1-10 Hz) the firmware can still filter mechanical-switch bounce and temperature drift. Compared with newer ARM Cortex-M0+ parts, this PIC16C5X device keeps standby current below 1 mA, which matters in solar-powered remote sensor enclosures where every microamp counts during night-time operation.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16LV54AT-02I/SS — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16LV54A-02I/SS | PIC16LV54A-02I/P | PIC16F54T-I/SS | PIC16C54A-04I/P | PIC16CR54A-02I/SS | PIC16F54-E/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | 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 | SSOP-20 - same |
| Program Memory Type | OTP (768 B) | OTP (768 B) | OTP (768 B) | Flash (768 B) | OTP (768 B) | Mask ROM (768 B) | Flash (768 B) |
| Maximum Clock | 2 MHz | 2 MHz | 2 MHz | 20 MHz | 4 MHz | 2 MHz | 20 MHz |
| Supply Voltage | 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 | 4.5 V to 5.5 V | 3.0 V to 5.5 V | 2.0 V to 5.5 V |
| I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| RAM | 25 B | 25 B | 25 B | 25 B | 25 B | 25 B | 25 B |
| Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (Extended) |
| Unit Price (qty 1, USD) | $2.95 | $2.95 | $2.95 | $1.85 | $3.20 (NRND) | $2.85 | $2.10 |
Diferenciadores clave
- Lowest-voltage OTP MCU in PIC16C5X family (frente a PIC16C54A-04I/P)
- Lower unit cost vs flash-based equivalent (frente a PIC16F54T-I/SS)
- Industrial temperature range across all variants (frente a PIC16F54-E/SS)
Notas de diseño
Place a 0.1 uF ceramic decoupling capacitor as close as possible to the VDD pin (pin 18) on PIC16LV54AT-02I/SS, with a trace length under 5 mm. For battery-powered designs, add a 10 uF bulk capacitor at the 3.3 V LDO output to handle inrush when TMR0 wakes the MCU from SLEEP. The 'LV' variant's 3.0 V minimum allows direct single-cell Li-ion/3xAA operation, but verify the brown-out voltage with the chosen LDO: the PIC16C5X family lacks a programmable brown-out reset, so an external voltage supervisor (such as MCP130) is recommended for industrial applications to avoid code corruption during supply dips below 3.0 V.
Estimated: at 2 MHz clock with 12 I/O pins switching simultaneously at 5 V, total ground bounce on a 2-layer FR4 PCB can exceed 0.4 V if the ground pour is fragmented. Route all I/O signals over a continuous ground plane on the bottom layer, and keep the SSOP-20 footprint's center pad (if present) tied to GND with multiple thermal vias. The MCLR/VPP pin (pin 1) must have a 10 kohm pull-up to VDD and a 100 nF capacitor to GND if in-circuit serial programming is needed; otherwise, omit the capacitor and use a simple 10 kohm pull-up.
Do not assume PIC16LV54AT-02I/SS interrupts support: the PIC16C5X base-line family has NO interrupt controller, so all event handling must be polling-based using TMR0 overflow flags. Do not exceed VPP voltage of 13.5 V during OTP programming or the device may be damaged. The two-level hardware stack restricts subroutines to a single nesting level - if firmware uses CALL inside CALL, the return address is lost. Finally, do not omit the configuration word programming step (oscillator selection, WDT enable/disable, code protection); incorrect configuration bits can render the device bricked.
Estimated: at 2 MHz oscillator with HS crystal mode, the OSC2 pin (pin 3) drives a 20-30 pF load including the crystal and stray capacitance. If using a ceramic resonator, add a 1 Mohm parallel feedback resistor to ensure start-up across -40 C to +85 C. For RC oscillator mode, select an external resistor between 5 kohm and 100 kohm and a capacitor between 20 pF and 200 pF to keep the frequency tolerance within +/- 5 percent. Place the oscillator components within 5 mm of pins 2-3 and shield the traces from switching I/O to avoid injection of harmonic noise into the clock.
Información de cumplimiento
RoHS/REACH compliant per Microchip PIC16C5X family product page. Not AEC-Q100 qualified - choose PIC16F54-E/SS or PIC16LF88T-I/SS for automotive applications. Lead-free and halogen-free per Microchip environmental compliance documentation.
