PIC16F917T-I/PT - 8-Bit MCU, 14KB Flash, 36 I/O, TQFP-44 | Microchip
Référence : PIC16F917T-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.61 | $6,61 |
| 10 | $6.05 | $60,50 |
| 100 | $5.2 | $520,00 |
| 500 | $4.55 | $2 275,00 |
| 1 000 | $3.97 | $3 970,00 |
PIC16F917T-I/PT Présentation
An 8-bit flash microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory, RAM, and peripherals on one die. The PIC16F917 sits in the broader hierarchy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. PIC mid-range devices use a RISC architecture with 35 single-word instructions and 200 ns instruction execution at 20 MHz, providing deterministic timing for real-time control loops while keeping the toolchain and code footprint small.
Key features include 14KB flash with self-programmability, 256 bytes EEPROM for data storage, two analog comparators with reference, PWM, capture/compare, MSSP (SPI/I2C), USART, and a real-time clock with low-power nanoWatt modes (sleep current under 1 uA typical). The on-chip LCD driver supports static, 1/2, 1/3, and 1/4 multiplex displays with software-controlled contrast, eliminating external LCD controller ICs in many human-machine interface designs.
Typical applications include white-goods and small-appliance user interfaces with LCD panels, battery-powered metering, industrial sensor front-ends, and consumer products that need mixed analog/digital I/O without a costly MPU. The wide 2.0-5.5V range simplifies single-cell Li-ion or multi-cell alkaline designs. When designing with this part, reserve adequate PCB area for decoupling and route the analog AVcc/AVss pair symmetrically around the QFP body to minimize ADC reference noise.
Alternatives de remplacement direct pour PIC16F917T-I/PT — 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 PIC16F917T-I/PT (même facteur de forme et même empreinte) — différant par Timers, Package, Watchdog Timer, ADC, LCD Driver.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16F917-I/PT
✅ Remplacement direct✓ En stock
$2.71 / unité
Voir la fiche technique →PIC16F917T-E/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16F914T-I/PT
✅ Remplacement direct✓ En stock
$2.6 / unité
Voir la fiche technique →PIC16F914-I/PT
✅ Remplacement direct✓ En stock
$2.98 / unité
Voir la fiche technique →PIC16F914-E/PT
✅ Remplacement direct✓ En stock
$2.31 / unité
Voir la fiche technique →PIC16F917T-I/PT Valeurs maximales et caractéristiques électriques
| Product Family | PIC16F9xx (PIC16 mid-range) |
| Core | 8-bit PIC RISC, 35 instructions |
| Program Memory | 14 KB Flash (8K x 14 words) |
| RAM | 352 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 20 MHz (200 ns instruction cycle) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| Number of I/O Pins | 36 |
| ADC | 8-bit, 14 channels |
| LCD Driver | Up to 36 segments, software contrast |
| Comparators | 2 with programmable reference |
| Timers | Timer0, Timer1, Timer2 (PWM), WDT |
| Communication | 1x USART (LIN-capable), 1x MSSP (SPI/I2C) |
| Oscillator | Internal 32 kHz-8 MHz selectable + external |
| Boîtier | 44-pin TQFP (10x10 mm), 0.8 mm pitch |
| Operating Temperature (I grade) | -40 C to +85 C |
| ICSP / ICD | In-Circuit Serial Programming / In-Circuit Debug |
| Power-Saving Modes | nanoWatt: Sleep <1 uA typical, low-power Timer1 |
| Statut RoHS | Compliant (Pb-free TQFP) |
| Type de montage | Surface Mount |
Configuration des broches de PIC16F917T-I/PT
| Broche 1 | LCDBIAS0 — LCD bias voltage input 0 |
| Broche 2 | LCDBIAS1 — LCD bias voltage input 1 |
| Broche 3 | LCDBIAS2 — LCD bias voltage input 2 |
| Broche 4 | LCDBIAS3 — LCD bias voltage input 3 |
| Broche 5 | VDD — Positive supply voltage (2.0-5.5 V) |
| Broche 6 | SEG0 — LCD segment output 0 / RB7 digital I/O |
| Broche 7 | SEG1 — LCD segment output 1 / RB6 digital I/O |
| Broche 8 | SEG2 — LCD segment output 2 / RB5 digital I/O |
| Broche 9 | SEG3 — LCD segment output 3 / RB4 digital I/O |
| Broche 10 | SEG4 — LCD segment output 4 / RA7 digital I/O |
| Broche 11 | SEG5 — LCD segment output 5 / RA6 digital I/O |
| Broche 12 | SEG6 — LCD segment output 6 / RE0 digital I/O |
| Broche 13 | SEG7 — LCD segment output 7 / RE1 digital I/O |
| Broche 14 | SEG8 — LCD segment output 8 / RE2 digital I/O |
| Broche 15 | SEG9 — LCD segment output 9 / RC0 digital I/O |
| Broche 16 | SEG10 — LCD segment output 10 / RC1 digital I/O |
| Broche 17 | SEG11 — LCD segment output 11 / RC2 digital I/O |
| Broche 18 | SEG12 — LCD segment output 12 / RC3 digital I/O |
| Broche 19 | SEG13 — LCD segment output 13 / RC4 digital I/O |
| Broche 20 | SEG14 — LCD segment output 14 / RC5 digital I/O |
| Broche 21 | SEG15 — LCD segment output 15 / RC6 digital I/O |
| Broche 22 | SEG16 — LCD segment output 16 / RC7 digital I/O |
| Broche 23 | SEG17 — LCD segment output 17 / RD7 digital I/O |
| Broche 24 | SEG18 — LCD segment output 18 / RD6 digital I/O |
| Broche 25 | SEG19 — LCD segment output 19 / RD5 digital I/O |
| Broche 26 | SEG20 — LCD segment output 20 / RD4 digital I/O |
| Broche 27 | SEG21 — LCD segment output 21 / RD3 digital I/O |
| Broche 28 | SEG22 — LCD segment output 22 / RD2 digital I/O |
| Broche 29 | SEG23 — LCD segment output 23 / RD1 digital I/O |
| Broche 30 | SEG24 — LCD segment output 24 / RD0 digital I/O |
| Broche 31 | VLCD3 — LCD supply voltage 3 / common 3 |
| Broche 32 | VLCD2 — LCD supply voltage 2 / common 2 |
| Broche 33 | VLCD1 — LCD supply voltage 1 / common 1 |
| Broche 34 | VSS — Ground reference |
| Broche 35 | COM0 — LCD common output 0 / RA0 digital I/O |
| Broche 36 | COM1 — LCD common output 1 / RA1 digital I/O / AN1 |
| Broche 37 | COM2 — LCD common output 2 / RA2 digital I/O / AN2 / VREF- |
| Broche 38 | COM3 — LCD common output 3 / RA3 digital I/O / AN3 / VREF+ |
| Broche 39 | RA5 — Digital I/O RA5 / AN4 / SS / VREF+ (alternate) |
| Broche 40 | OSC1/CLKIN — External oscillator input / clock in / RA5 alternate |
| Broche 41 | OSC2/CLKOUT — External oscillator output / clock out / RA4 alternate |
| Broche 42 | MCLR/VPP — Master clear reset (active low) / programming voltage |
| Broche 43 | SEG25 — LCD segment output 25 / RE3 digital I/O |
| Broche 44 | SEG26 — LCD segment output 26 / RA7 alternate |
Applications typiques
PIC16F917T-I/PT convient pour 6 applications: White Goods and Appliance User Interfaces, Battery-Powered Metering and Sensor Front-Ends, Industrial Sensor and Control Modules, Consumer Electronics with Segmented LCD, Automotive Body and Interior Modules, Educational and Development Platforms.
White Goods and Appliance User Interfaces
The PIC16F917T-I/PT is purpose-built for washing machines, microwave ovens, dishwashers, and HVAC control panels where an integrated LCD segment driver is required without an external controller IC. Its on-chip driver supports up to 36 segments and four common planes with software contrast, eliminating a dedicated LCD driver and shrinking the BOM by $0.40-$0.80 per unit. The 36 I/O pins drive matrix keypads, rotary encoders, and status LEDs directly, and the 8-bit mid-range core runs the user-interface state machine at 5 MIPS with deterministic timing. NanoWatt sleep currents below 1 uA let the appliance remain plugged in across years of standby without meaningful standby power draw.
Recommandé
Battery-Powered Metering and Sensor Front-Ends
The PIC16F917T-I/PT serves as the analog front-end and display controller for water meters, gas meters, portable instrumentation, and remote sensor nodes where a 2.0-5.5 V supply range lets the design run from a single Li-ion cell or two AA cells. The 14-channel 10-bit ADC digitizes sensor inputs while the integrated LCD displays the reading directly, avoiding a separate A/D and display IC. nanoWatt power-down modes with wake-on-Timer1 allow sleep currents below 1 uA typical, supporting multi-year battery life on a single 2000 mAh cell. The internal 32 kHz to 8 MHz oscillator eliminates an external crystal in cost-sensitive designs.
Recommandé
Industrial Sensor and Control Modules
In industrial 4-20 mA loop sensors, PLC input cards, and small process controllers the PIC16F917T-I/PT provides 36 mixed-signal I/O, dual analog comparators with programmable reference, and a 20 MHz execution rate that closes control loops in microseconds. The 14-channel ADC with 8-10-bit resolution is adequate for thermocouple cold-junction compensation and 4-20 mA current loop readout via a 250 ohm sense resistor. USART with LIN support simplifies slave-node communication in factory automation busses, and the MSSP peripheral handles SPI or I2C sensors and EEPROM. The industrial -40 C to +85 C operating range covers most factory-floor deployments without derating.
Recommandé
Consumer Electronics with Segmented LCD
Consumer products such as digital kitchen scales, blood-pressure monitors, bathroom scales, and thermostat remotes leverage the PIC16F917T-I/PT's integrated LCD segment driver and 14 KB flash to keep the user-interface firmware fully self-contained. The MCU handles keypad scanning, ADC sampling of load-cell or pressure-sensor bridges, and direct LCD driving without a separate driver chip. Five MIPS of processing capacity runs display refresh, filtering, and button-debounce state machines concurrently. The TQFP-44 package gives enough I/O to drive an 8x4 matrix keypad while leaving pins for the LCD common/segment lines.
Recommandé
Automotive Body and Interior Modules
Non-safety automotive subsystems such as HVAC control heads, seat-position memory controllers, rear-seat entertainment keypads, and interior lighting controllers use the PIC16F917T-I/PT to drive segment LCDs and read multiple switch inputs from a single MCU. The integrated LCD driver supports the high-contrast displays common in automotive interior modules, and the 36 I/O pins handle backlight drivers, button matrices, and LIN-network transceivers. Note that this part is NOT AEC-Q100 qualified - for AEC-Q100 grade 0 or grade 1 automotive applications, designers should migrate to the PIC16F1939 or PIC16F15385 family, both of which carry automotive qualification and share the PIC16 ecosystem.
Recommandé
Educational and Development Platforms
The PIC16F917T-I/PT remains a popular teaching and hobbyist MCU because of its forgiving 2.0-5.5 V supply, internal oscillator that eliminates external crystals, and broad free toolchain support from MPLAB X IDE with the XC8 compiler. The PICkit 3 and PICkit 4 in-circuit debuggers handle programming and step-through debugging through the ICSP pins without removing the MCU from the target board. The integrated LCD peripheral gives students a tangible visual output without extra hardware, and the 14 KB flash is roomy enough for full class projects including ADC, PWM, and serial communication exercises.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16F917T-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16F917-I/PT | PIC16F917T-E/PT | PIC16F914T-I/PT | PIC16F914-I/PT | PIC16F914-E/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-44 (10x10 mm) | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 14 KB (8K x 14) | 14 KB - same | 14 KB - same | 14 KB - same | 14 KB - same | 14 KB - same |
| RAM | 352 bytes | 352 bytes - same | 352 bytes - same | 256 bytes (-27%) | 256 bytes (-27%) | 256 bytes (-27%) |
| LCD Segments | 36 segments (4 commons) | 36 segments - same | 36 segments - same | 24 segments (-33%) | 24 segments (-33%) | 24 segments (-33%) |
| Maximum CPU Frequency | 20 MHz | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same |
| Supply Voltage Range | 2.0 V to 5.5 V | 2.0-5.5 V - same | 2.0-5.5 V - same | 2.0-5.5 V - same | 2.0-5.5 V - same | 2.0-5.5 V - same |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C - same | Extended -40C to +125C | Industrial -40C to +85C - same | Industrial -40C to +85C - same | Extended -40C to +125C |
| Number of I/O Pins | 36 | 36 - same | 36 - same | 36 - same | 36 - same | 36 - same |
Principaux différenciateurs
- Integrated LCD driver eliminates external controller IC (vs PIC16F887-I/P)
- True drop-in same-package compatibility across temperature grades (vs PIC16F914T-I/PT)
- Internal 32 kHz-8 MHz oscillator reduces BOM (vs PIC16F877A-I/P)
Notes de conception
The PIC16F917 nanoWatt feature set provides sleep currents under 1 uA typical, but real-world standby is dominated by the LCD bias network and pull-up resistors. Estimated: at room temperature with the internal LCD charge pump disabled and all I/O configured as analog, sleep current measures 0.1-0.5 uA. Enable the LCD bias ladder before entering sleep only if the display must remain active; otherwise gate the LCD supply to reduce standby to <100 nA.
The TQFP-44 10x10 mm package has a 0.8 mm pitch and a 6 sq mm exposed thermal pad that is internally floating; tie it to ground or leave unconnected per the package drawing - it is not a thermal path. Place a 0.1 uF decoupling capacitor within 3 mm of the VDD pin (pin 5) and a bulk 1-10 uF tantalum or ceramic near the package. AVcc/AVss analog supply pins (when used) should be star-grounded and filtered with a ferrite bead to keep ADC reference noise below 1 LSB.
Common pitfalls with the PIC16F917: (1) configuring a pin as both LCD segment AND analog input simultaneously is not supported; the LCD mux overrides the analog function. (2) The internal oscillator drift is +/- 2% over voltage and temperature - unacceptable for UART at high baud rates without calibration; use the INTOSC IOFC mode or external crystal. (3) ICSP pins RB6/RB7 must not be held low at power-up or the MCU enters programming mode - add 10 kohm pull-ups. (4) The MCLR pin is input-only; driving it below VIL for too long resets the part.
LCD segment traces should be routed away from high-frequency digital lines (PWM, oscillator, USART) by at least 3x the trace-to-trace spacing to minimize capacitive coupling into the high-impedance segment nodes. The VLCD charge-pump capacitors (typically 0.1 uF on each VLCD pin) must be placed within 5 mm of their respective pins. Avoid routing any signal trace under the TQFP package body; use the inner PCB layers for ground pour and keep digital returns physically separated from analog returns to prevent ADC ground bounce.
Informations de conformité
RoHS and lead-free per Microchip product page (Pb-free TQFP package marking). NOT AEC-Q100 qualified - the PIC16F917 family targets industrial and consumer applications, not automotive safety. For AEC-Q100 designs, migrate to PIC16F1939 or PIC16F15385 which carry automotive qualification. REACH compliance per Microchip regulatory statements.
