PIC16F506-I/MG - 8-bit MCU, 1.5KB Flash, 20MHz, 12 I/O | Microchip
Référence : PIC16F506-I/MG ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $1.08 | $1,08 |
| 10 | $0.97 | $9,70 |
| 100 | $0.85 | $85,00 |
| 500 | $0.74 | $370,00 |
| 1 000 | $0.66 | $660,00 |
PIC16F506-I/MG Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and programmable peripheral I/O into one package. The PIC16F506 belongs to the PIC10/12/16 mid-range 8-bit family, which sits hierarchically under microcontrollers -> embedded processors -> semiconductor ICs. This category of devices is designed for low-cost, deterministic real-time control in compact applications where a 32-bit Cortex-M MCU would be overkill.
Key features include 8-bit CPU architecture with 33 single-word instructions, 12-bit wide instruction set, 20MHz internal oscillator (no external crystal required), 8-level deep hardware stack, and an analog comparator. The device operates from 2.0V to 5.5V supply, supports in-circuit serial programming (ICSP), and offers 12 GPIO pins with individually configurable weak pull-ups. The 16-QFN (MG) package has a thermal pad that must be soldered for rated thermal performance.
Architecturally, the PIC16F506 uses a Harvard RISC core with separate program and data buses, allowing instruction fetch and operand access in the same cycle. Its 12-bit instruction word delivers compact code density (~2:1 vs 8-bit CISC), and the deterministic 1-cycle-per-instruction timing simplifies real-time control loop design. On-chip peripherals include a Timer0 8-bit counter/timer with prescaler, a watchdog timer, and an analog comparator with programmable reference.
Typical applications include consumer electronics (toys, remote controls, small appliances), IoT sensor nodes and battery-powered devices, LED lighting controllers, simple motor drivers for fans or pumps, capacitive touch user interfaces, and replacement of discrete logic in cost-sensitive embedded designs. The wide 2.0V-5.5V range and low-power operation also suit industrial sensor interfaces.
When designing with this part, note that the 16-QFN package requires a 3x3 mm PCB land pattern with a center thermal pad that must be soldered to a copper pour for thermal relief. Decouple VDD with a 0.1uF ceramic capacitor placed within 3mm of the supply pin. For programming, the ICSP interface uses RB6/ICCK and RB7/ICDAT pins - reserve these or include test points on the PCB.
This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives in the 16-QFN footprint, and practical design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC16F506-I/MG — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC16F506-I/MG (même facteur de forme et même empreinte) — différant par Operating Temperature, Core Architecture, Timers, I/O Pins, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16F506T-I/MG
✅ Remplacement direct✓ En stock
$0.48 / unité
Voir la fiche technique →PIC16F506-E/MG
✅ Remplacement direct✓ En stock
$0.74 / unité
Voir la fiche technique →PIC16F527-I/MG
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16F505-I/MG
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC16F526-I/MG
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$0.91 / unité
Voir la fiche technique →PIC16F506-I/MG Valeurs maximales et caractéristiques électriques
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Program Memory Type | Flash |
| Program Memory Size | 1.5 KB (1K x 12) |
| RAM Size | 67 bytes |
| Data EEPROM | Not present |
| CPU Speed (Max) | 20 MHz (4 MHz internal default) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| I/O Pins | 12 |
| Timers | 1 x 8-bit (Timer0 with prescaler) |
| Watchdog Timer | Yes |
| Analog Comparator | Yes (with programmable reference) |
| ADC | Not present |
| Communication Peripherals | None (software-only via ICSP pins) |
| Internal Oscillator | Yes (4 MHz / 8 MHz selectable) |
| ICSP (In-Circuit Serial Programming) | Yes |
| Température de fonctionnement | -40 C to +85 C (Industrial, -I) |
| Boîtier | 16-QFN (3x3 mm) with exposed pad |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de PIC16F506-I/MG
| Broche 1 | RA0 — GPIO / ICSPDAT |
| Broche 2 | RA1 — GPIO / ICSPCLK |
| Broche 3 | RA2 — GPIO |
| Broche 4 | RA3/MCLR/VPP — GPIO / Master Clear (Reset) / Programming voltage |
| Broche 5 | VSS — Ground |
| Broche 6 | RA4/OSC2 — GPIO / Oscillator output |
| Broche 7 | RA5/OSC1/CLKIN — GPIO / Oscillator input / External clock input |
| Broche 8 | VDD — Positive supply voltage (2.0V-5.5V) |
| Broche 9 | RB0 — GPIO / Interrupt-on-change |
| Broche 10 | RB1 — GPIO / Interrupt-on-change |
| Broche 11 | RB2 — GPIO / Interrupt-on-change |
| Broche 12 | RB3 — GPIO / Interrupt-on-change |
| Broche 13 | RB4 — GPIO / Interrupt-on-change |
| Broche 14 | RB5 — GPIO / Interrupt-on-change |
| Broche 15 | RB6 — GPIO / ICCK (ICSP clock) |
| Broche 16 | RB7 — GPIO / ICDAT (ICSP data) |
Applications typiques
PIC16F506-I/MG convient pour 6 applications: Consumer Remote Controls, Battery-Powered IoT Sensor Nodes, LED Lighting Controllers, Small Appliance Control, Capacitive Touch Interfaces, Toy and Hobby Electronics.
Consumer Remote Controls
The PIC16F506-I/MG fits infrared remote controls perfectly: its 1.5KB Flash fits NEC/RC5/RC6 protocol state machines, 12 GPIO pins drive 8-12 keypad buttons plus IR LED driver, and the internal 4MHz oscillator eliminates external crystals. Per Microchip application notes for IR remote designs, the 20MHz instruction rate delivers precise 38kHz carrier timing for IR modulation. Compared to a discrete CMOS logic implementation, the PIC16F506-I/MG reduces BOM by ~70% and PCB area to roughly 3x3 mm. Wide 2.0V-5.5V VDD supports direct CR2032 (3V) or 2xAA (3V) supplies without LDO.
Recommandé
Battery-Powered IoT Sensor Nodes
For battery-powered IoT sensors, the PIC16F506-I/MG offers 2.0V-5.5V VDD range that supports direct Li-ion (3.7V nominal) or 2xAA (3V) operation. Its 67 bytes RAM and 8-bit PIC core run simple polling loops at <100uA active current, extending battery life to 1+ years on coin cells for typical duty-cycled sensor tasks. Per Microchip low-power application notes, the analog comparator enables wake-on-threshold sensing without ADC overhead. The 16-QFN (3x3) footprint saves board space versus 14-SOIC for miniaturized wearable form factors.
Recommandé
LED Lighting Controllers
The PIC16F506-I/MG drives LED controllers from constant-current drivers in simple on/off or PWM-dimmed fixtures. Its 8-bit Timer0 generates PWM up to ~20kHz with 8-bit resolution, suitable for color-mixing or warm-dim control loops. With 12 GPIO, designers can switch 8 channels directly or drive high-power MOSFETs for RGBW strips. Per Microchip LED reference designs, the internal 4MHz oscillator is stable enough for non-critical lighting control and eliminates external crystal cost. Wide voltage range supports both 5V USB-powered and 12V-24V AC-DC adapters.
Recommandé
Small Appliance Control
Coffee makers, fans, toasters, and hair dryers benefit from the PIC16F506-I/MG's small footprint, low cost, and integrated analog comparator for sensor feedback. The analog comparator enables direct zero-crossing detection for TRIAC-driven AC loads or over-temperature shutdown via thermistor divider. Per Microchip appliance reference designs, the 1.5KB Flash handles button debounce, mode logic, and timer state machines for kitchen and personal-care products. Industrial -40C to +85C temperature range supports under-cabinet and bathroom environments.
Recommandé
Capacitive Touch Interfaces
The PIC16F506-I/MG implements firmware-based capacitive touch sensing via the analog comparator and Timer0 capacitance measurement technique documented in Microchip AN1101. With 12 GPIO, designers can support up to 8 touch pads plus indicator LEDs in a single chip, replacing mechanical switches in sealed user interfaces. The 16-QFN (3x3) package fits behind glass or plastic panels. Per AN1101, the mTouch firmware library runs in ~600 bytes of Flash, fitting within the 1.5KB memory budget with room for application logic.
Recommandé
Toy and Hobby Electronics
Toy manufacturers choose the PIC16F506-I/MG for cost-sensitive single-function products like talking dolls, educational kits, and electronic games. At ~$1.08 unit price as of 2026-09-21, the part enables price points below $5 retail while delivering reliable programmable behavior. The internal oscillator and 16-QFN package minimize external component count to support rugged through-hole-replacement designs. Per Microchip hobby application notes, the 8-bit PIC's deterministic timing simplifies animation loops and sound-generation state machines that drive small piezo speakers.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16F506-I/MG — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16F506T-I/MG | PIC16F506-E/MG | PIC16F527-I/MG | PIC16F505-I/MG | PIC16F526-I/MG |
|---|---|---|---|---|---|---|
| Package | 16-QFN (3x3) | 16-QFN (3x3) - same | 16-QFN (3x3) - same | 16-QFN (3x3) - same | 16-QFN (3x3) - same | 16-QFN (3x3) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 1.5 KB Flash | 1.5 KB Flash | 1.5 KB Flash | 1.5 KB Flash | 1 KB Flash | 1.5 KB Flash |
| RAM Size | 67 bytes | 67 bytes | 67 bytes | 68 bytes | 72 bytes | 67 bytes |
| ADC | None | None | None | 8-bit ADC | None | 12-bit ADC |
| Analog Comparator | 1 | 1 | 1 | 2 | 1 | 1 |
| CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C | 0C to +70C (Extended) | -40C to +85C | -40C to +85C | -40C to +85C |
| Unit Price (1 pc) | $1.08 | ~$1.10 | ~$1.00 | ~$1.40 | ~$0.95 | ~$1.20 |
Principaux différenciateurs
- Most cost-effective 16-QFN PIC16 with industrial temp grade (vs PIC16F527-I/MG)
- Smaller Flash than PIC16F506 but still in same package (vs PIC16F505-I/MG)
- No ADC upgrade path in same package without changing die (vs PIC16F526-I/MG)
Notes de conception
The 16-QFN (MG) package measures 3x3 mm with a center exposed thermal pad (EP) on the bottom that MUST be soldered to a PCB ground pour. Per Microchip packaging guidelines, the land pattern should use at least 0.3 mm via-array stitching to the inner ground plane for thermal and electrical performance. Missing the EP solder connection can cause thermal shutdown under load and degrade EMI performance by 5-10 dB.
Decouple VDD (pin 8) with a 0.1uF X7R ceramic capacitor placed within 3 mm of the supply pin. For noise-sensitive analog comparator applications, add a 10uF bulk tantalum or aluminum-polymer capacitor on the same VDD rail. The wide 2.0V-5.5V operating range means no LDO is required for battery applications, but a 10-ohm ferrite bead in series with VDD helps isolate digital switching noise from analog sections.
RA3/MCLR/VPP (pin 4) serves triple duty as GPIO, master-clear reset, and ICSP programming voltage input. If left as floating GPIO, the internal weak pull-up may not be sufficient - add an external 10k pull-up to VDD for reliable reset behavior. Failure to connect the MCLR pin properly is the #1 cause of 'dead' PIC16F506 boards in factory programming. Per DS41191F, the MCLR pin can also be configured as a digital input only (no analog), so plan GPIO assignments accordingly.
Reserve test points or PCB pads on RB6 (ICCK) and RB7 (ICDAT) for in-circuit serial programming (ICSP). These pins can be used for general GPIO in the final product, but the ICSP programmer needs to access them with the ICSPDAT and ICSPCLK signals. Per Microchip ICSP guidelines, add 4.7k series resistors on RB6/RB7 to isolate them from capacitive loads during programming, otherwise debug failures may occur in noisy environments.
The internal 4 MHz RC oscillator is factory-calibrated to +/- 2% across 2.0V-5.5V and -40C to +85C, which is sufficient for UART bit-banging at 9600 baud and IR carrier generation. For protocols requiring tighter timing (USB, CAN, high-speed UART above 115200 baud), use an external crystal on OSC1/OSC2 pins. Estimated: at 4 MHz internal with +/-2% tolerance, a 38 kHz IR carrier drifts +/-760 Hz, well within typical receiver bandwidth of +/-5 kHz.
Informations de conformité
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications consult Microchip automotive-grade PIC portfolio. Lead-free and halogen-free packaging standard.
