PIC16F917-I/ML - 8-Bit MCU, 14KB Flash, 35 I/O, 44-QFN | Microchip
N.º de pieza: PIC16F917-I/ML ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $4.82 | $4,82 |
| 10 | $4.21 | $42,10 |
| 100 | $3.65 | $365,00 |
| 500 | $3.12 | $1.560,00 |
| 1.000 | $2.78 | $2.780,00 |
PIC16F917-I/ML Descripción general
An 8-bit microcontroller (MCU) is a single-chip computer that integrates an 8-bit CPU core, Flash/ROM program memory, data RAM, EEPROM, timers, communication peripherals, and I/O on one die. It belongs to the broader hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor. PIC16F series MCUs from Microchip target cost-sensitive, low-power embedded designs with rich peripheral integration and the legacy PIC mid-range instruction set.
Key features include nanoWatt power management (deep sleep currents in the microampere range), a built-in LCD driver supporting up to 4 common x 35 segment displays, a 10-bit ADC with 14 channels, two analog comparators, and communication peripherals including USART, SPI, and I2C. The internal oscillator can be configured up to 8 MHz, with the option to switch to an external crystal for precision timing.
The PIC16F917 architecture uses a 14-bit instruction word Harvard design with separate program and data buses, enabling single-cycle instruction execution at 20 MHz (200 ns instruction cycle). Its peripheral integration eliminates external drivers for LCD panels and reduces BOM count versus discrete MCU + external LCD controller designs.
Typical applications include consumer appliances with LCD user interfaces, industrial control panels, security keypads, instrument clusters, medical monitoring devices, and battery-powered sensor nodes. The integrated LCD driver and ample I/O make it well suited to HMI (human-machine interface) products where it would otherwise need an external LCD controller.
When designing with this part, the I/ML suffix denotes the 44-lead QFN package (-40C to +85C industrial temperature range). Place a thermal via array under the exposed pad to the inner ground plane for best thermal performance, and follow Microchip AN2042 (LCD design) for segment bias capacitor selection to avoid flicker on high-duty-cycle displays.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the standalone manufacturer datasheet, with all data cross-referenced against the Microchip PIC16F91X 28/40/44-pin datasheet and current distributor listings.
Alternativas directas para PIC16F917-I/ML — 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 PIC16F917-I/ML (mismo factor de forma y huella) — difiere en ADC, LCD Driver, Operating Temperature, Package, Timers.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16F917-E/ML
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$3.49 / unidad
Ver hoja de datos →PIC16F917T-I/ML
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC16F916-I/ML
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16F913-I/ML
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16F914-I/ML
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC16F917-I/ML Valores máximos y características eléctricas
| Core | PIC16F 8-bit |
| Program Memory Size | 14 KB (8K x 14) Flash |
| RAM Size | 352 bytes |
| EEPROM Size | 256 bytes |
| Maximum CPU Speed | 20 MHz |
| Operating Voltage Range | 2.0 V to 5.5 V |
| Number of I/O Pins | 35 |
| ADC | 10-bit, 14 channels |
| LCD Driver | Integrated, up to 4 common x 35 segment |
| Analog Comparators | 2 |
| Timers | Timer0, Timer1, Timer2 |
| Communication Peripherals | USART, SPI, I2C (MSSP) |
| Oscillator | Internal (up to 8 MHz) and external crystal support |
| Encapsulado | 44-VQFN (ML) 8x8 mm with exposed pad |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40C to +85C (Industrial) |
| Estado RoHS | Compliant |
Configuración de pines de PIC16F917-I/ML
| Pin 1 | SEG0 — LCD segment output / RA0 |
| Pin 2 | SEG1 — LCD segment output / RA1 |
| Pin 3 | SEG2 — LCD segment output / RA2 |
| Pin 4 | SEG3 — LCD segment output / RA3 |
| Pin 5 | SEG4 — LCD segment output / RA4 |
| Pin 6 | SEG5 — LCD segment output / RA5 |
| Pin 7 | SEG6 — LCD segment output / RA6 |
| Pin 8 | SEG7 — LCD segment output / RA7 |
| Pin 9 | COM3 — LCD common 3 / RE3 |
| Pin 10 | COM2 — LCD common 2 / RE2 |
| Pin 11 | COM1 — LCD common 1 / RE1 |
| Pin 12 | COM0 — LCD common 0 / RE0 |
| Pin 13 | VDD — Positive supply voltage |
| Pin 14 | VSS — Ground |
| Pin 15 | OSC1 — Crystal/oscillator input |
| Pin 16 | OSC2 — Crystal/oscillator output |
| Pin 17 | RC0 — Digital I/O / T1OSO / T1CKI |
| Pin 18 | RC1 — Digital I/O / T1OSI / CCP2 |
| Pin 19 | RC2 — Digital I/O / CCP1 |
| Pin 20 | RC3 — Digital I/O / SCL / SCK |
| Pin 21 | RC4 — Digital I/O / SDA / SDI |
| Pin 22 | RC5 — Digital I/O / SDO |
| Pin 23 | RC6 — Digital I/O / TX / CK |
| Pin 24 | RC7 — Digital I/O / RX / DT |
| Pin 25 | RB0 — Digital I/O / INT0 |
| Pin 26 | RB1 — Digital I/O / INT1 |
| Pin 27 | RB2 — Digital I/O / INT2 |
| Pin 28 | RB3 — Digital I/O / PGM |
| Pin 29 | RB4 — Digital I/O / AN11 |
| Pin 30 | RB5 — Digital I/O / AN10 / KBI1 |
| Pin 31 | RB6 — Digital I/O / ICSPCLK |
| Pin 32 | RB7 — Digital I/O / ICSPDAT |
| Pin 33 | RD0 — Digital I/O / PSP0 |
| Pin 34 | RD1 — Digital I/O / PSP1 |
| Pin 35 | RD2 — Digital I/O / PSP2 |
| Pin 36 | RD3 — Digital I/O / PSP3 |
| Pin 37 | RD4 — Digital I/O / PSP4 |
| Pin 38 | RD5 — Digital I/O / PSP5 / P1B |
| Pin 39 | RD6 — Digital I/O / PSP6 / P1C |
| Pin 40 | RD7 — Digital I/O / PSP7 / P1D |
| Pin 41 | SEG31 — LCD segment output / RD0 alt |
| Pin 42 | SEG30 — LCD segment output / RD1 alt |
| Pin 43 | VLCD1 — LCD bias voltage 1 |
| Pin 44 | VLCD2 — LCD bias voltage 2 / EPAD |
Aplicaciones típicas
PIC16F917-I/ML es adecuado para 7 aplicacións: Consumer Appliance Front Panels with LCD, Industrial Control Panels and HMIs, Security System Keypads and Access Control, Medical Monitoring Devices (Non-Critical), Automotive Dashboard Sub-Displays, Battery-Powered Sensor Hubs with Display, Educational and Hobby Development Platforms.
Consumer Appliance Front Panels with LCD
The PIC16F917-I/ML's integrated 4-common x 35-segment LCD driver makes it a single-chip solution for washing machine, microwave, and air-conditioner front panels. With 14 KB of Flash it can host segmented UI state machines, keypad scanning, and timer logic without an external LCD controller. The 2.0-5.5 V range lets it share the appliance's existing 5 V or 3.3 V rail, and the 35 I/O handle keypad matrices, LED indicators, and relay drivers. nanoWatt sleep modes keep standby power below regulatory limits for white goods. Industrial -40C to +85C range covers appliance garage and laundry environments.
Recomendado
Industrial Control Panels and HMIs
For factory-floor HMI panels the PIC16F917-I/ML delivers 35 I/O for switch banks, indicator LEDs, and segmented LCD readouts of process variables. The 14-bit instruction cycle at 20 MHz handles debounce, polling loops, and Modbus-style ASCII over the integrated USART. The 10-bit ADC with 14 channels supports direct transducer input (4-20 mA scaled to voltage, thermistor, or potentiometer). Industrial temperature grade and the rugged 44-VQFN package withstand vibration and conformal coating. Pair with an external RS-485 transceiver for industrial bus connectivity.
Recomendado
Security System Keypads and Access Control
Security keypads benefit from the PIC16F917-I/ML's 35 I/O for 4x4 matrices, status LEDs, buzzer drivers, and Wiegand-style signaling to the host panel. 14 KB Flash supports encrypted PIN tables, anti-tamper state machines, and OTA-style field updates via ICSP. The integrated LCD driver displays status messages without an extra controller, reducing BOM cost and PCB area. nanoWatt sleep currents extend battery life in wireless keypad variants. Operating range up to 5.5 V tolerates long cable runs from central panels.
Recomendado
Medical Monitoring Devices (Non-Critical)
Non-critical medical devices such as home blood-pressure monitors, digital thermometers, and pill dispensers use the PIC16F917-I/ML to host the LCD readout, sensor interface, and button logic. The 10-bit ADC reads pressure or temperature sensors; the LCD driver shows readings without a separate display controller. nanoWatt modes keep battery life long for portable use. Industrial temp range and stable 5 V operation support the demanding accuracy and reliability targets of consumer health devices while keeping BOM cost low.
Recomendado
Automotive Dashboard Sub-Displays
In non-safety automotive sub-displays such as HVAC controls, mirror adjusters, or motorcycle instrument clusters, the PIC16F917-I/ML drives segmented LCD readouts directly. The 35 I/O connect to mode switches, illumination drivers, and CAN/LIN transceivers via UART. The wide 2.0-5.5 V range survives load-dump events when paired with a TVS and bulk regulator. For under-hood or extreme-temperature locations, designers should migrate to AEC-Q100-qualified PIC16F equivalents rather than the I/ML industrial grade part.
Recomendado
Battery-Powered Sensor Hubs with Display
Battery-powered environmental sensors, weather stations, and gas detectors use the PIC16F917-I/ML to read sensors, manage sleep cycles, and show readings on a small LCD. The 35 I/O handle multiple sensor channels, a low-power radio UART link, and a segmented display. nanoWatt sleep currents below 1 uA preserve battery life across multi-year deployments. The internal 8 MHz oscillator avoids a crystal for cost-sensitive designs, while the wide 2.0-5.5 V range supports 2xAA or Li-coin cells directly.
Recomendado
Educational and Hobby Development Platforms
The PIC16F917-I/ML is widely used in university microcontroller courses and hobbyist projects because the LCD on-chip, 35 I/O, and PIC16 mid-range architecture give students a single platform to learn GPIO, ADC, timers, communication buses, and segmented displays. MPLAB X with the free XC8 compiler and PICkit 3/4 programmers make bring-up trivial. Its industrial temperature range tolerates student-handling and lab environments. The 44-VQFN package is compatible with carrier boards that break out pins to 0.1 inch headers for breadboarding.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16F917-I/ML — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16F917-E/ML | PIC16F917T-I/ML | PIC16F916-I/ML | PIC16F913-I/ML | PIC16F914-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-VQFN (ML) 8x8 | 44-VQFN (ML) 8x8 - same | 44-VQFN (ML) 8x8 - same | 44-VQFN (ML) 8x8 - same | 44-VQFN (ML) 8x8 - same | 44-VQFN (ML) 8x8 - same |
| Program Memory | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash | 7 KB Flash | 14 KB Flash |
| RAM | 352 B | 352 B | 352 B | 352 B | 256 B | 352 B |
| Number of I/O | 35 | 35 | 35 | 25 | 25 | 25 |
| LCD Driver | 4 common x 35 segment | 4 common x 35 segment | 4 common x 35 segment | 4 common x 24 segment | 4 common x 24 segment | 4 common x 24 segment |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
Diferenciadores clave
- Highest LCD segment count in the 44-pin PIC16F91X family (frente a PIC16F916-I/ML)
- Most I/O pins among 44-pin PIC16F91X siblings (frente a PIC16F913-I/ML)
- Industrial temperature coverage with full LCD feature set (frente a PIC16F917T-I/ML)
Notas de diseño
The 44-VQFN package has an exposed thermal pad (pin 44 / EPAD) that must be soldered to a corresponding copper land on the PCB and stitched to the inner ground plane with a via array of at least 9 thermal vias (0.3 mm drill, 1.0 mm pitch). Without this thermal pad connection, the die dissipates heat primarily through bond wires, which can raise junction temperature in high-I/O switching designs and degrade long-term reliability.
Route the ICSP signals (RB6/ICSPCLK and RB7/ICSPDAT) so that series resistors or test points are placed close to the MCU for in-circuit programming access. Keep the ICSP connector footprint at least 3 mm from the QFN body to avoid probe interference. For LCD applications, follow Microchip AN2042 for VLCD1/VLCD2 capacitor selection - typical values are 0.1 uF ceramic with low-leakage X7R dielectric to prevent display flicker at low temperatures.
Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair, plus a single 10 uF bulk capacitor near the MCU. The PIC16F917 has two VDD/VSS pairs (pin 13/14 and pin 1 side). Estimated: at 20 MHz and 5 V with all peripherals active, supply current can reach 8-10 mA; nanoWatt sleep currents drop below 1 uA when Sleep mode is properly entered with unused peripherals disabled.
Do not exceed 5.5 V on any pin including analog inputs; the absolute maximum VDD is 6.5 V per datasheet. Avoid floating digital inputs by configuring unused I/O as outputs or enabling internal weak pull-ups on RB ports. When using the internal oscillator, configure OSCCON carefully because factory calibration can drift; for UART applications requiring tight baud-rate tolerance, use a crystal. Always clear the POR and BOR flags before relying on a known reset state.
Información de cumplimiento
Microchip PIC16F917 family is RoHS and REACH compliant per the product page datasheet link. Standard industrial grade; not AEC-Q100 qualified. For automotive applications, Microchip recommends AEC-Q100-qualified PIC16F equivalents rather than the I/ML industrial variant.
