PIC16C57-LPE/SO - 8-Bit 40MHz OTP MCU 28-SOIC | Microchip
N.º de pieza: PIC16C57-LPE/SO ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.66 | $2,66 |
| 10 | $2.5 | $25,00 |
| 100 | $2.3 | $230,00 |
| 500 | $2.1 | $1.050,00 |
| 1.000 | $1.9 | $1.900,00 |
PIC16C57-LPE/SO Descripción general
A PIC (Peripheral Interface Controller) microcontroller is a compact, low-cost, programmable integrated circuit that combines a CPU core, non-volatile program memory, RAM, and configurable I/O peripherals on a single silicon die. PIC microcontrollers fall within the broader category of microcontrollers (MCUs), which are a sub-class of embedded processors under the semiconductor hierarchy. The PIC16C5X family specifically uses a 12-bit-wide instruction word, which delivers approximately 2:1 code compression versus competing 8-bit architectures and reduces program-memory footprint.
The PIC16C57-LPE/SO differentiates itself through an OTP program memory (factory- or field-programmable, not re-programmable in-circuit), a Harvard architecture with separate program and data buses, and a 33-instruction set that simplifies firmware authoring. It includes a Watchdog Timer for unattended operation, an 8-bit timer/counter (TMR0) with an 8-bit prescaler, and a Power-on Reset / Brown-out Reset combination. With only 20 usable I/O pins in a 28-pin package, the device is positioned at the lower end of the PIC16C5X line, suitable for cost-sensitive embedded control.
Typical applications include appliance controllers, automotive body-electronics subsystems (non-safety), industrial sensor interfaces, low-end remote-control transmitters, security keypads, and simple LED-driving / relay-driving logic replacement. Its extended-temperature grade makes it attractive for outdoor or semi-enclosed installations.
When designing with this device, note that OTP memory cannot be re-flashed; engineering samples or pre-production programming must use the -JW ceramic-windowed or -X (UV-erasable) variants. Programming requires a Microchip MPLAB PM3, PRO MATE II, or compatible third-party programmer; in-circuit debug is not supported on the PIC16C57.
This page synthesizes distributor stock/pricing, drop-in PIC16C5X family alternatives, and practical design notes not consolidated in the manufacturer datasheet alone.
Alternativas directas para PIC16C57-LPE/SO — 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 PIC16C57-LPE/SO (mismo factor de forma y huella) — difiere en Package, Program Memory Size, Core Architecture, Program Memory Type, Watchdog Timer.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16C57-LPI/SO
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC16C57-LP/SO
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC16C57C-20/SO
✅ Sustitución directa✓ En stock
$2.89 / unidad
Ver hoja de datos →PIC16C57C-20E/SO
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$2.55 / unidad
Ver hoja de datos →PIC16C55-LPE/SO
✅ Sustitución directa✓ En stock
$4.55 / unidad
Ver hoja de datos →PIC16C56-LPE/SO
✅ Sustitución directa✓ En stock
$2.18 / unidad
Ver hoja de datos →PIC16C57-LPE/SO Valores máximos y características eléctricas
| Product Family | PIC® 16C |
| Core | 8-bit PIC16C5X |
| Program Memory Size | 3 KB (2K x 12) OTP |
| RAM Size | 72 bytes |
| Number of I/O Pins | 20 |
| Frecuencia de reloj máxima | 40 MHz |
| Instruction Width | 12-bit |
| Instruction Set | 33 instructions |
| Encapsulado | 28-SOIC (0.295", 7.50mm width) |
| Tipo de montaje | Surface Mount |
| Speed Grade | LPE (low-power, extended temperature) |
| Timers | TMR0 8-bit timer with 8-bit prescaler |
| Watchdog Timer | Yes |
| Power-on Reset / Brown-out Reset | Yes |
| In-Circuit Debug Support | No (not on PIC16C57 base die) |
| Oscillator Type | External RC / External Crystal / Internal (per variant) |
| Estado RoHS | Compliant (lead-free SOIC) |
| Nivel MSL | MSL 1 (unsealed SOIC, floor-life unlimited) |
Configuración de pines de PIC16C57-LPE/SO
| Pin 1 | RA2 — Port A bit 2 (bidirectional I/O) |
| Pin 2 | RA3 — Port A bit 3 (bidirectional I/O) |
| Pin 3 | RTCC — RTCC timer/counter input / TMR0 clock |
| Pin 4 | MCLR — Master Clear (Reset, active-low) |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0 — Port B bit 0 (bidirectional I/O) |
| Pin 7 | RB1 — Port B bit 1 (bidirectional I/O) |
| Pin 8 | RB2 — Port B bit 2 (bidirectional I/O) |
| Pin 9 | RB3 — Port B bit 3 (bidirectional I/O) |
| Pin 10 | RB4 — Port B bit 4 (bidirectional I/O) |
| Pin 11 | RB5 — Port B bit 5 (bidirectional I/O) |
| Pin 12 | RB6 — Port B bit 6 (bidirectional I/O) |
| Pin 13 | RB7 — Port B bit 7 (bidirectional I/O) |
| Pin 14 | VSS — Ground reference |
| Pin 15 | OSC1/CLKIN — Oscillator input / external clock in |
| Pin 16 | OSC2/CLKOUT — Oscillator output / clock out |
| Pin 17 | RC0 — Port C bit 0 (bidirectional I/O) |
| Pin 18 | RC1 — Port C bit 1 (bidirectional I/O) |
| Pin 19 | RC2 — Port C bit 2 (bidirectional I/O) |
| Pin 20 | RC3 — Port C bit 3 (bidirectional I/O) |
| Pin 21 | RC4 — Port C bit 4 (bidirectional I/O) |
| Pin 22 | RC5 — Port C bit 5 (bidirectional I/O) |
| Pin 23 | RC6 — Port C bit 6 (bidirectional I/O) |
| Pin 24 | RC7 — Port C bit 7 (bidirectional I/O) |
| Pin 25 | VDD — Positive supply voltage |
| Pin 26 | RA0 — Port A bit 0 (bidirectional I/O) |
| Pin 27 | RA1 — Port A bit 1 (bidirectional I/O) |
| Pin 28 | NC — Not connected (per datasheet) |
Aplicaciones típicas
PIC16C57-LPE/SO es adecuado para 6 aplicacións: Appliance Control Panels, Security Keypad and Access-Control Modules, Industrial Sensor Interface Modules, Remote-Control and IR Transmitter Devices, Automotive Body Electronics (Non-Safety), LED Display Drivers and Lighting Controllers.
Appliance Control Panels
The PIC16C57-LPE/SO fits appliance control panels (washing machines, dishwashers, microwave ovens) where its 3 KB OTP program memory, 20 I/O pins, and 8-bit PIC16C5X core deliver sufficient capability for keypad scanning, relay/LED driving, and basic state machines. With the -LPE grade offering extended temperature tolerance and Brown-out/Power-on Reset, the device reliably survives the noisy, fluctuating-supply environment of a mains-driven appliance. The Harvard architecture and 33-instruction set keep firmware development straightforward, while the 28-SOIC footprint is industry-standard for SMT appliance PCB assembly lines. Recommended companion: PIC16C57C-20/SO as production drop-in, plus a zero-cross SSR driver IC on the AC side.
Recomendado
Security Keypad and Access-Control Modules
For PIN-pad entry controllers and basic access-control modules, the PIC16C57-LPE/SO's 20 I/O pins handle a 4x4 matrix keypad scan with lines to spare for buzzer, LED indicator, magnetic-stripe reader handshake, and Wiegand output. The Watchdog Timer prevents lockup if the operator holds a key too long, while Brown-out Reset recovers gracefully from power glitches during door-strike activation. The 12-bit-wide instruction set compresses typical keypad-decoding logic into a few hundred words of the 3 KB OTP, leaving room for password storage and lockout timers. The extended-temperature grade is valuable for outdoor or metal-frame installations that experience thermal stress.
Recomendado
Industrial Sensor Interface Modules
Sensor-conditioning and signal-conditioning front-ends in industrial environments benefit from the PIC16C57-LPE/SO's 20 I/O, Watchdog Timer, and Brown-out Reset. The device can multiplex multiple digital sensors, debounce mechanical contacts, drive optocouplers to upstream PLCs, and present Modbus-friendly timing. With 72 bytes of RAM, however, complex buffering is not practical, so the PIC16C57 is best suited to compact sensor-interface PCBs handling 4-8 discrete I/O. The -LPE grade's extended temperature range (-40C to +85C typical, verify from datasheet) supports factory-floor deployments with wide ambient swings.
Recomendado
Remote-Control and IR Transmitter Devices
The PIC16C57-LPE/SO is well-suited to remote-control transmitter roles where 8-bit logic, low cost, and small footprint dominate. It generates IR carrier modulation (typically 36-40 kHz) using TMR0 and bit-banged GPIO, while storing button-lookup tables and protocol encoders in the 3 KB OTP. The low pin count of the 28-SOIC is sufficient for a 4x3 keypad plus IR-LED driver. The PIC16C5X's deterministic instruction timing simplifies the generation of precise IR pulse trains required by consumer-electronics protocols (RC5, NEC, SIRC). For volume manufacturing, the OTP-only nature of this part keeps unit cost low versus Flash MCUs.
Recomendado
Automotive Body Electronics (Non-Safety)
For non-safety automotive body-electronics modules - seat controllers, mirror adjusters, ambient lighting drivers - the PIC16C57-LPE/SO provides enough logic at a competitive price point. Twenty I/O pins handle H-bridge direction inputs, position-feedback potentiometer ADC-free sampling via comparator ICs, and LIN/CAN companion transceivers. The Watchdog Timer catches firmware lockups, and the -LPE speed grade supports wide temperature swings inside cabin-mounted enclosures. Note that the PIC16C57 is not AEC-Q100 qualified, so it should be restricted to non-safety body modules, not engine-control or airbag subsystems.
Recomendado
LED Display Drivers and Lighting Controllers
LED driving, sign scrolling, and decorative-lighting controllers map well to the PIC16C57-LPE/SO. Twenty I/O pins can directly Charlieplex up to ~90 LEDs (limited by refresh-rate budget) or row/column-scan a small 7-segment or matrix display. TMR0 drives the refresh interrupt, and the Watchdog Timer recovers the controller from transient brown-out events on long LED chains. The OTP-only architecture keeps BOM cost low for high-volume lighting SKUs (seasonal signage, retail displays), where firmware is fixed and does not require field updates. The -LPE temperature grade supports outdoor enclosures.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16C57-LPE/SO — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16C57-LPI/SO | PIC16C57-LP/SO | PIC16C57C-20/SO | PIC16C55-LPE/SO | PIC16C56-LPE/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (0.295", 7.50mm) | 28-SOIC (0.295", 7.50mm) - same | 28-SOIC (0.295", 7.50mm) - same | 28-SOIC (0.295", 7.50mm) - same | 28-SOIC (0.295", 7.50mm) - same | 28-SOIC (0.295", 7.50mm) - same |
| Program Memory | 3 KB (2K x 12) OTP | 3 KB OTP - same | 3 KB OTP - same | 3 KB OTP - same | ~768B-1KB OTP - smaller | 1 KB OTP - smaller |
| RAM Size | 72 bytes | 72 bytes - same | 72 bytes - same | 72 bytes - same | ~24-72 bytes (smaller family member) | ~72 bytes |
| Maximum Clock Frequency | 40 MHz (family max) | 40 MHz - same family | 40 MHz - same family | 20 MHz - enhanced CMOS rated | 40 MHz - same family | 40 MHz - same family |
| I/O Pins | 20 | 20 - same | 20 - same | 20 - same | 20 - same | 12-20 (family variant) |
| Core | 8-bit PIC16C5X | 8-bit PIC16C5X - same | 8-bit PIC16C5X - same | 8-bit PIC16C5X enhanced CMOS | 8-bit PIC16C5X - same | 8-bit PIC16C5X - same |
| Memory Type | OTP (One-Time Programmable) | OTP - same | OTP - same | OTP enhanced CMOS | OTP - same | OTP - same |
Diferenciadores clave
- Largest program memory in the 28-pin PIC16C5X family (frente a PIC16C55-LPE/SO)
- Extended temperature grade via -LPE suffix (frente a PIC16C57-LP/SO)
- Drop-in pin compatibility with PIC16C56-LPE/SO (frente a PIC16C56-LPE/SO)
Notas de diseño
PIC16C57 silicon does not support in-circuit debug; you cannot step through code on the target board. For development cycles, prototype on a windowed PIC16C57-JW or PIC16C57-X variant, verify functionality, then program the production OTP parts (PIC16C57-LPE/SO) using a Microchip MPLAB PM3 or PRO MATE II programmer. A common pitfall is assuming in-circuit debug works because the modern PIC16F family supports ICD - it does not on the PIC16C57.
Brown-out Reset (BOR) and Power-on Reset (POR) must be configured correctly in the configuration word before programming. The PIC16C57-LPE/SO's BOR voltage threshold (consult datasheet DS30402J Electrical Characteristics) should be set above the minimum operating Vdd but below the lowest expected supply rail. A 100 nF decoupling capacitor placed within 5 mm of the VDD pin is mandatory; add a 10 uF bulk capacitor at the PCB entry point to handle inrush from relay or motor loads.
Oscillator traces (OSC1/CLKIN, OSC2/CLKOUT) must be kept short and routed over a continuous ground plane to minimize EMI pickup. Place the crystal or resonator within 5 mm of the OSC pins, with load capacitors grounded close to the device ground pin. Avoid routing I/O traces under the oscillator area; cross-talk on the 28-SOIC's compact pinout can corrupt timing on sensitive analog or timer-driven circuits such as IR transmitters.
The 28-SOIC (0.295", 7.50mm width) pin pitch is 1.27mm, so hand-soldering is feasible but production assembly should use reflow. Ensure the PCB land pattern follows IPC-7351 SOIC-28 nominal. MCLR (pin 4) should be pulled up to VDD via a 10 kohm resistor; a 100 nF capacitor on MCLR provides noise immunity but limits in-circuit programming speed if it is too large. For Watchdog Timer use, configure the prescaler carefully to avoid unintended device resets during long interrupt-disabled routines.
Información de cumplimiento
RoHS and REACH compliance per Microchip product page material declarations. Not AEC-Q100 qualified - do not use in safety-critical automotive subsystems. PIC16C5X family is mature, active for industrial and embedded legacy designs.
