PIC16C56-LPE/P - 1KB OTP 8-Bit MCU, 12 I/O, 18-PDIP | Microchip
N.º de pieza: PIC16C56-LPE/P ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $4.5 | $4,50 |
| 10 | $4.05 | $40,50 |
| 100 | $3.6 | $360,00 |
| 500 | $3.15 | $1.575,00 |
| 1.000 | $2.78 | $2.780,00 |
PIC16C56-LPE/P Descripción general
A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, I/O peripherals, and clock generation logic on one die. Within the broader semiconductor taxonomy, an MCU is a type of embedded processor (hypernyms: microcontroller -> embedded processor -> microprocessor -> semiconductor). The PIC16C5X family specifically occupies the cost-optimized, OTP-programmable niche, sitting between discrete logic and flash-based modern PIC MCUs in terms of flexibility and unit cost.
Key differentiating specifications include the OTP (one-time-programmable) program memory, the EPROM-based die, a 12-bit-wide instruction word providing roughly 2:1 code compression versus competing 8-bit MCUs of its era, and the wide operating voltage range. The device also features an internal reset circuit, watchdog timer, power-on reset, and brown-out detection options depending on configuration bits.
The RISC architecture executes each instruction in a single cycle except for program branches, which take two cycles. This deterministic instruction timing simplifies real-time control loop design and improves interrupt response predictability versus accumulator-based 8-bit architectures of similar vintage.
Typical applications include low-cost consumer appliances, simple sensor interfaces, automotive body electronics (sub-systems), industrial timers and counters, and legacy embedded designs requiring OTP programming for cost or IP protection. The extended temperature range supports industrial and automotive under-hood deployments.
When designing with this device, note that OTP memory cannot be erased or rewritten, so firmware must be fully verified before programming. The "LPE" speed grade pairs a low-power oscillator domain with extended-temperature silicon, typically supporting clock rates up to the LP-domain maximum defined in the PIC16C5X datasheet family.
This page synthesizes distributor inventory, parametric comparisons against pin-compatible PIC16C5X siblings and flash-based successors, and practical design notes for migration off the obsolete EPROM die.
Alternativas directas para PIC16C56-LPE/P — 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 PIC16C56-LPE/P (mismo factor de forma y huella) — difiere en Program Memory Type, Package, Program Memory Size, Mounting Type, RoHS Status.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16C56-LPI/P
✅ Sustitución directa✓ En stock
$1.09 / unidad
Ver hoja de datos →PIC16C56-LP/P
✅ Sustitución directa✓ En stock
$3.39 / unidad
Ver hoja de datos →PIC16C56-HSI/P
✅ Sustitución directa✓ En stock
$1.62 / unidad
Ver hoja de datos →PIC16C56A-04E/P
✅ Sustitución directa✓ En stock
$1.21 / unidad
Ver hoja de datos →PIC16F54-I/P
✅ Sustitución directa✓ En stock
$0.68 / unidad
Ver hoja de datos →PIC16C56-LPE/P Valores máximos y características eléctricas
| Series | PIC® 16C |
| Core Processor | PIC |
| Core Size | 8-bit |
| Program Memory Type | OTP (EPROM-based) |
| Program Memory Size | 1.5 KB (1K x 12) |
| RAM Size | 25 B |
| Number of I/O Pins | 12 |
| Supply Voltage Range | 3.0 V to 5.5 V (3.3 V / 5 V nominal) |
| Oscillator Type | External (LP oscillator variant) |
| Rango de temperatura de funcionamiento | -40C to +125C (extended, "E" grade) |
| Encapsulado | 18-pin PDIP (0.300 in / 7.62 mm) |
| Tipo de montaje | Through-Hole (DIP) |
| Instruction Set | 33 single-word/single-cycle instructions |
| Instruction Width | 12 bits |
| Architecture | RISC |
| Speed Grade | LPE (Low-Power oscillator, Extended temp) |
| Peripherals | POR (Power-On Reset), WDT (Watchdog Timer, optional) |
Configuración de pines de PIC16C56-LPE/P
| Pin 1 | RB0 — Port B bit 0 (digital I/O, bidirectional) |
| Pin 2 | RB1 — Port B bit 1 (digital I/O, bidirectional) |
| Pin 3 | RB2 — Port B bit 2 (digital I/O, bidirectional) |
| Pin 4 | RB3 — Port B bit 3 (digital I/O, bidirectional) |
| Pin 5 | RB4 — Port B bit 4 (digital I/O, bidirectional) |
| Pin 6 | RB5 — Port B bit 5 (digital I/O, bidirectional) |
| Pin 7 | RB6 — Port B bit 6 (digital I/O, bidirectional) |
| Pin 8 | RB7 — Port B bit 7 (digital I/O, bidirectional) |
| Pin 9 | OSC1 — Oscillator input (external crystal/RC) |
| Pin 10 | OSC2 — Oscillator output (external crystal/RC) |
| Pin 11 | RA0 — Port A bit 0 (digital I/O, bidirectional) |
| Pin 12 | RA1 — Port A bit 1 (digital I/O, bidirectional) |
| Pin 13 | RA2 — Port A bit 2 (digital I/O, bidirectional) |
| Pin 14 | RA3 — Port A bit 3 (digital I/O, bidirectional) |
| Pin 15 | MCLR/VPP — Master Clear (reset, active low) / Programming voltage input |
| Pin 16 | T0CKI — Timer0 clock input (also RA4) |
| Pin 17 | VDD — Positive supply voltage (3.0 V to 5.5 V) |
| Pin 18 | VSS — Ground reference |
Aplicaciones típicas
PIC16C56-LPE/P es adecuado para 6 aplicacións: Consumer Appliance Controllers, Industrial Timers and Counters, Automotive Body Electronics (Legacy), Sensor Interface Front-Ends, LED Display Drivers and Chasers, Legacy Embedded Replacement (Service Stock).
Consumer Appliance Controllers
The PIC16C56-LPE/P fits simple consumer appliance controllers - washing-machine sub-modules, microwave oven keypads, and rice cooker timing boards - because its 12 digital I/O pins directly drive LED segments, key-scan matrices, relay coils, and triac gates without external glue logic. The OTP program memory stores fixed firmware such as cycle state machines and debounce tables that never require field update, satisfying cost-sensitive appliance BOM targets. The extended -40C to +125C temperature grade handles under-cabinet heat soak and proximity to heating elements.
Recomendado
Industrial Timers and Counters
In industrial timer and counter modules the PIC16C56-LPE/P provides deterministic single-cycle instruction execution that makes relay timing, conveyor pacing, and event-counting loops straightforward to verify. The 33-instruction RISC core and 12-bit instruction word compress typical state-machine code by approximately 2:1 versus legacy 8-bit MCUs, fitting the 1K x 12 program budget. The extended temperature grade supports factory-floor enclosures and unheated warehouses.
Recomendado
Automotive Body Electronics (Legacy)
The PIC16C56-LPE/P has historically been used in automotive body-electronics sub-modules such as seat controllers, mirror actuators, and interior lighting timers where its extended -40C to +125C grade survives under-dash thermal stress. Its 12 I/O directly switch small solenoids and lamps through MOSFET drivers. Note: the part is obsolete and not AEC-Q100 documented; new automotive designs should use qualified successors such as PIC16F15313-I/SL.
Recomendado
Sensor Interface Front-Ends
The PIC16C56-LPE/P works well as a sensor interface front-end for simple digital sensors - reed switches, Hall-effect sensors, thermistor bridges with comparator output, and quadrature encoders. Twelve I/O bits accommodate multiple switch inputs plus an indicator LED, while the deterministic instruction cycle gives consistent debounce timing. The LP oscillator domain suits battery-powered remote sensor nodes drawing microamp-level quiescent current.
Recomendado
LED Display Drivers and Chasers
The PIC16C56-LPE/P drives LED chaser effects, marquee lighting, and small dot-matrix displays by multiplexing up to 12 segments directly with software PWM or Charlieplexing. The 12-bit instruction word and 33-instruction RISC core let the timing loops run without timer overflow. Extended-temperature operation supports outdoor signage enclosures and architectural lighting controllers installed in unconditioned spaces.
Recomendado
Legacy Embedded Replacement (Service Stock)
Field-service replacement boards for legacy equipment still in operation use the PIC16C56-LPE/P to maintain identical firmware behavior and avoid requalification of the end product. Its OTP memory is a benefit here: the exact firmware image from the original production build can be re-ordered onto replacement parts with no risk of accidental field reprogramming. Same-footprint siblings in the PIC16C5X family may be substituted when the original is out of stock.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16C56-LPE/P — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16C56-LPI/P | PIC16C56-LP/P | PIC16C56-HSI/P | PIC16C56A-04E/P | PIC16F54-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-pin PDIP | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same |
| Program Memory | 1.5 KB OTP (1K x 12) | 1.5 KB OTP (1K x 12) | 1.5 KB OTP (1K x 12) | 1.5 KB OTP (1K x 12) | 1.5 KB OTP (1K x 12, A revision) | 0.75 KB Flash (512 x 12) |
| Operating Temperature | -40C to +125C (Extended "E") | -40C to +85C (Industrial "I") | 0C to +70C (Commercial) | -40C to +85C (Industrial "I") | -40C to +125C (Extended "E") | -40C to +85C (Industrial "I") |
| Oscillator Domain | LP (Low-Power) | LP (Low-Power) | LP (Low-Power) | HS (High-Speed) | XT/RC up to 4 MHz | INTOSC + External up to 20 MHz |
| Number of I/O | 12 | 12 | 12 | 12 | 12 | 12 |
| Memory Type | OTP (EPROM) | OTP (EPROM) | OTP (EPROM) | OTP (EPROM) | OTP (EPROM) | Flash (in-circuit reprogrammable) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Active |
Diferenciadores clave
- Extended temperature silicon grade (frente a PIC16C56-LPI/P)
- Low-power oscillator domain (frente a PIC16C56-HSI/P)
- OTP/EPROM-based fixed firmware (frente a PIC16F54-I/P)
Notas de diseño
PIC16C56-LPE/P uses OTP memory, so firmware must be fully verified on a windowed or emulator part before production programming. Once programmed the firmware cannot be erased or modified, which rules out iterative development cycles in production. For prototypes, use PIC16C56/JW (windowed ceramic) or the flash-based PIC16F54-I/P which is pin-compatible on the 18-pin PDIP footprint.
Place the decoupling capacitor (100 nF ceramic) within 5 mm of the VDD pin (pin 17) and the VSS pin (pin 18). Keep the OSC1/OSC2 traces short and away from high-current switching nodes. When using an external crystal, add a 1 MOhm parallel resistor across the crystal to bias the internal oscillator into its linear region - this is especially important for LP-domain designs below 1 MHz.
Configuration bits (the EPROM configuration word) must be set explicitly; an unprogrammed configuration word can disable the watchdog, select an unintended oscillator mode, or disable code protection. Read the PIC16C5X family datasheet configuration-word table carefully when porting code from PIC16C55 or PIC16C57, as the bit positions differ.
Información de cumplimiento
PIC16C56-LPE/P predates RoHS; lead (Pb) is present in the PDIP terminations. Not AEC-Q100 qualified; for new automotive designs use PIC16F15313-I/SL or equivalent qualified flash MCU. REACH status not verified for obsolete part.
