PIC16F914-I/PT - 8-Bit MCU, 7KB Flash, LCD Driver, 44-TQFP | Microchip
Teilenummer: PIC16F914-I/PT ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $5.42 | $5,42 |
| 10 | $4.87 | $48,70 |
| 100 | $4.12 | $412,00 |
| 500 | $3.55 | $1.775,00 |
| 1.000 | $2.98 | $2.980,00 |
PIC16F914-I/PT Übersicht
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, timers, communication peripherals, and I/O on one die. The PIC16F91X series belongs to Microchip's mid-range PIC16 family and uses a RISC-based Harvard architecture with only 35 single-word instructions, enabling predictable real-time control. MCUs sit at the top of the embedded-computing hierarchy alongside microprocessors, FPGAs, and DSPs, and dominate cost-sensitive deterministic control applications.
Key features include a wide 2.0 V to 5.5 V operating range, integrated LCD segment driver supporting up to 96 segments, 25 mA source/sink I/O current capability per pin, an on-chip 8 MHz internal oscillator, and nanoWatt Technology power-management modes that reduce quiescent current for battery-powered applications. The on-chip LCD controller eliminates the need for an external LCD driver, reducing BOM cost and PCB area in human-machine interface designs.
The PIC16F914 uses a Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and operand access. Its enhanced mid-range core adds a hardware stack, interrupt context saving, and 14-bit instruction words optimized for C compiler code generation. The device's nanopower features include a secondary 32 kHz oscillator, ultra-low-power wake-up, and several sleep modes enabling coin-cell operation in remote sensors and metering products.
Typical applications include industrial control panels, home appliance user interfaces, security and alarm keypads, medical infusion pumps, metering equipment, and any embedded design requiring a glass or segment LCD without external controller chips. The integrated LCD driver also makes it suitable for automotive dashboard clusters and consumer electronics with character or segment displays.
When designing with this device, reserve adequate PCB area for the decoupling capacitor network (0.1 uF on VDD) and consider the LCD bias network on COM/SEG pins. Always program configuration bits (oscillator, watchdog, code protection) before the main application code, and consult the device's errata for any silicon revisions relevant to your revision ID.
This page synthesizes distributor pricing, drop-in PIC16F91X-family alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference for component evaluation.
Drop-in-Alternativen für PIC16F914-I/PT – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16F914-I/PT (gleiche Bauform und Footprint) – abweichend in Package, Timers, LCD Driver, Program Memory Type, Watchdog Timer.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16F917-I/PT
✅ Drop-In✓ Auf Lager
$2.71 / Stück
Datenblatt ansehen →PIC16F916-I/PT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16F914-E/PT
✅ Drop-In✓ Auf Lager
$2.31 / Stück
Datenblatt ansehen →PIC16F913-I/PT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16F1937-I/PT
✅ Drop-In✓ Auf Lager
$3.1 / Stück
Datenblatt ansehen →PIC16F1947-I/PT
✅ Drop-In✓ Auf Lager
$2.35 / Stück
Datenblatt ansehen →PIC16F914-I/PT Grenzwerte & elektrische Eigenschaften
| Core Processor | PIC |
| Core Size | 8-Bit |
| Family | PIC® 16F |
| Maximum CPU Speed | 20 MHz |
| Program Memory Type | FLASH |
| Program Memory Size | 7 KB (4K x 14) |
| RAM Size | 352 bytes |
| EEPROM Size | 256 bytes |
| Number of I/O | 36 |
| Operating Voltage Range | 2.0 V to 5.5 V |
| LCD Segments | Up to 96 |
| Timers | 2 x 8-bit (TMR0/TMR2), 1 x 16-bit (TMR1) |
| Watchdog Timer | Enhanced (EWDT) |
| Internal Oscillator | 32 kHz to 8 MHz |
| I/O Source/Sink Current | 25 mA |
| Gehäuse | 44-pin TQFP (10x10 mm) |
| Montageart | Surface Mount |
| Betriebstemperaturbereich | -40C to +85C (Industrial) |
| Instruction Set | 35 single-word instructions (RISC) |
| Instruction Cycle Time | 200 ns at 20 MHz |
PIC16F914-I/PT Pin-Konfiguration
| Pin 1 | MCLR — Master Clear (reset) input, active low. Internal pull-up enabled via configuration bit. |
| Pin 2 | RA0 — Bidirectional I/O port A bit 0. AN0 analog input. |
| Pin 3 | RA1 — Bidirectional I/O port A bit 1. AN1 analog input. |
| Pin 4 | RA2 — Bidirectional I/O port A bit 2. AN2 analog input. |
| Pin 5 | RA3 — Bidirectional I/O port A bit 3. AN3 analog input. |
| Pin 6 | RA4 — Bidirectional I/O port A bit 4. T0CKI timer0 clock input. |
| Pin 7 | RA5 — Bidirectional I/O port A bit 5. AN4 analog input. |
| Pin 8 | RE0 — Bidirectional I/O port E bit 0. LCD segment driver. |
| Pin 9 | RE1 — Bidirectional I/O port E bit 1. LCD segment driver. |
| Pin 10 | RE2 — Bidirectional I/O port E bit 2. LCD segment driver. |
| Pin 11 | VDD — Positive supply voltage input. |
| Pin 12 | VSS — Ground reference. |
| Pin 13 | RA7 — Bidirectional I/O port A bit 7. OSC1 oscillator input. |
| Pin 14 | RA6 — Bidirectional I/O port A bit 6. OSC2 oscillator output. |
| Pin 15 | RC0 — Bidirectional I/O port C bit 0. LCD segment driver. |
| Pin 16 | RC1 — Bidirectional I/O port C bit 1. LCD segment driver. |
| Pin 17 | RC2 — Bidirectional I/O port C bit 2. LCD segment driver. |
| Pin 18 | RC3 — Bidirectional I/O port C bit 3. LCD segment driver. |
| Pin 19 | RC4 — Bidirectional I/O port C bit 4. LCD segment driver. |
| Pin 20 | RC5 — Bidirectional I/O port C bit 5. LCD segment driver. |
| Pin 21 | RC6 — Bidirectional I/O port C bit 6. TX/CK serial port. |
| Pin 22 | RC7 — Bidirectional I/O port C bit 7. RX/DT serial port. |
| Pin 23 | RD0 — Bidirectional I/O port D bit 0. LCD segment driver. |
| Pin 24 | RD1 — Bidirectional I/O port D bit 1. LCD segment driver. |
| Pin 25 | RD2 — Bidirectional I/O port D bit 2. LCD segment driver. |
| Pin 26 | RD3 — Bidirectional I/O port D bit 3. LCD segment driver. |
| Pin 27 | RD4 — Bidirectional I/O port D bit 4. LCD segment driver. |
| Pin 28 | RD5 — Bidirectional I/O port D bit 5. LCD segment driver. |
| Pin 29 | RD6 — Bidirectional I/O port D bit 6. LCD segment driver. |
| Pin 30 | RD7 — Bidirectional I/O port D bit 7. LCD segment driver. |
| Pin 31 | VSS — Ground reference. |
| Pin 32 | VDD — Positive supply voltage input. |
| Pin 33 | RB0 — Bidirectional I/O port B bit 0. INT external interrupt. |
| Pin 34 | RB1 — Bidirectional I/O port B bit 1. LCD segment driver. |
| Pin 35 | RB2 — Bidirectional I/O port B bit 2. LCD segment driver. |
| Pin 36 | RB3 — Bidirectional I/O port B bit 3. LCD segment driver. |
| Pin 37 | RB4 — Bidirectional I/O port B bit 4. LCD segment driver. |
| Pin 38 | RB5 — Bidirectional I/O port B bit 5. LCD segment driver. |
| Pin 39 | RB6 — Bidirectional I/O port B bit 6. PGC ICSP clock. |
| Pin 40 | RB7 — Bidirectional I/O port B bit 7. PGD ICSP data. |
| Pin 41 | RE3 — Bidirectional I/O port E bit 3. LCD segment driver. |
| Pin 42 | COM0 — LCD common output 0. |
| Pin 43 | COM1 — LCD common output 1. |
| Pin 44 | COM2 — LCD common output 2. |
Typische Anwendungen
PIC16F914-I/PT ist geeignet für 7 Anwendungs: Industrial Control Panels with LCD HMI, Home Appliance User Interfaces, Security and Alarm Keypads, Medical Infusion Pumps, Electricity and Water Metering, Automotive Dashboard Clusters (non-safety), Consumer Electronics Segment Displays.
Industrial Control Panels with LCD HMI
The PIC16F914-I/PT is ideal for industrial control panels because its integrated LCD segment driver supports up to 96 segments, eliminating the need for an external LCD controller and reducing BOM cost. The 36 I/O pins handle keypads, rotary encoders, and indicator LEDs simultaneously, while 25 mA source/sink drives optocouplers and relays directly. The 2.0V-5.5V operating range tolerates noisy 24V-derived supplies after regulation, and the -40C to +85C industrial temperature range covers factory-floor environments. nanoWatt sleep modes allow panel-mounted battery-backed designs to retain time-of-day for months. Pin 1 MCLR and dedicated ICSP allow in-circuit firmware updates without removing the panel.
Empfohlen
Home Appliance User Interfaces
The PIC16F914-I/PT suits washing machines, microwave ovens, dishwashers, and air conditioners that require segment-LCD displays plus capacitive touch buttons. The integrated LCD driver controls up to 96 segments of a 7-segment or 14-segment display directly, while 36 I/O pins drive LED indicators, buzzer drivers, and triac optocouplers. nanoWatt Technology reduces standby power below 1 uA, helping appliances meet ENERGY STAR standby budgets. The on-chip 32 kHz secondary oscillator runs the real-time clock without waking the main core. Hardware CRC and enhanced watchdog timer improve field reliability in unattended appliances.
Empfohlen
Security and Alarm Keypads
The PIC16F914-I/PT drives alarm-system keypads with 12-16 keys, a 16x2 character LCD, and status LEDs through a single chip. The integrated LCD segment driver replaces dedicated LCD controllers, cutting BOM cost by $1-2 per unit. The 25 mA I/O drive directly sinks the buzzer and indicator LEDs without external transistors. Enhanced Watchdog Timer with its own on-chip oscillator prevents runaway firmware in unattended installations. ICSP and code protection bits secure in-field firmware IP. nanoWatt sleep modes below 1 uA extend backup-battery life to over five years on a single 9V battery.
Empfohlen
Medical Infusion Pumps
The PIC16F914-I/PT drives medical infusion pumps with segment-LCD displays for rate, volume, and alarm status. The 7 KB Flash stores protocol code, alarm logic, and dosage tables for portable pumps. 25 mA I/O drives buzzer, LED alarms, and motor driver optocouplers directly without external transistors. The integrated LCD driver replaces dedicated controllers, reducing board area for compact handheld form factors. nanoWatt Technology extends battery life for portable pump operation. Note: medical applications require IEC 60730 Class B software certification; consult Microchip's functional safety documentation for FDA submission support.
Empfohlen
Electricity and Water Metering
The PIC16F914-I/PT runs single-phase electricity meters and water meters that display consumption on segment LCDs. The integrated 96-segment LCD driver displays kWh, voltage, current, and time-of-use tariffs directly without external controllers. The 32 kHz secondary oscillator provides real-time clock accuracy for time-of-use billing. The wide 2.0V-5.5V operating range runs directly from lithium battery backup after mains loss. Enhanced Watchdog Timer with dedicated oscillator prevents firmware lockups in unattended meters. The 256-byte EEPROM stores calibration and tamper logs for regulatory compliance.
Empfohlen
Automotive Dashboard Clusters (non-safety)
The PIC16F914-I/PT drives segment-LCD dashboard clusters in automotive non-safety applications like motorcycle gauges and small EV displays. The integrated LCD controller displays speed, RPM, fuel, and temperature on a single multi-segment panel. 25 mA I/O drive directly sources backlight LEDs and warning indicators. The -40C to +85C industrial grade covers most under-dash environments, while the -E/PT variant covers engine-bay conditions up to +125C. Note: critical safety functions require AEC-Q100 qualified parts such as PIC16F1933-I/MG or dsPIC33 variants.
Empfohlen
Consumer Electronics Segment Displays
The PIC16F914-I/PT powers consumer products such as digital scales, remote controls with LCD, exercise equipment consoles, and kitchen timers. The integrated 96-segment LCD driver enables product differentiation through crisp multi-digit displays at low BOM cost. The 7 KB Flash stores user-interface state machines and calibration tables. nanoWatt Technology keeps standby current below 1 uA for battery-operated devices. The wide 2.0V-5.5V operating range accepts single-cell Li-ion, two-cell alkaline, or regulated USB power. ICSP allows firmware updates during production programming.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16F914-I/PT – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16F917-I/PT | PIC16F916-I/PT | PIC16F914-E/PT | PIC16F913-I/PT | PIC16F1937-I/PT | PIC16F1947-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same |
| Program Memory (Flash) | 7 KB (4K x 14) | 14 KB (8K x 14) - +100% | 14 KB (8K x 14) - +100% | 7 KB (4K x 14) - same | 7 KB (4K x 14) - same | 14 KB (8K x 14) - +100% | 14 KB (8K x 14) - +100% |
| RAM Size | 352 bytes | 352 bytes - same | 352 bytes - same | 352 bytes - same | 256 bytes - -27% | 512 bytes - +45% | 512 bytes - +45% |
| LCD Segments | 96 | 96 - same | 64 - -33% | 96 - same | 72 - -25% | 96 - same | 96 - same |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) - same | -40C to +85C (Industrial) - same | -40C to +125C (Extended) - +40C upper limit | -40C to +85C (Industrial) - same | -40C to +85C (Industrial) - same | -40C to +85C (Industrial) - same |
| Timers | 2x 8-bit, 1x 16-bit | 2x 8-bit, 1x 16-bit - same | 2x 8-bit, 1x 16-bit - same | 2x 8-bit, 1x 16-bit - same | 2x 8-bit, 1x 16-bit - same | 4x 8-bit, 1x 16-bit - enhanced | 4x 8-bit, 1x 16-bit - enhanced |
| Core | PIC16 enhanced mid-range | PIC16 enhanced mid-range - same | PIC16 enhanced mid-range - same | PIC16 enhanced mid-range - same | PIC16 enhanced mid-range - same | PIC16 enhanced mid-range - same | PIC16 enhanced mid-range - same |
| Operating Voltage Range | 2.0 V to 5.5 V | 2.0 V to 5.5 V - same | 2.0 V to 5.5 V - same | 2.0 V to 5.5 V - same | 2.0 V to 5.5 V - same | 1.8 V to 5.5 V - wider | 1.8 V to 5.5 V - wider |
Wichtigste Unterscheidungsmerkmale
- Integrated 96-segment LCD driver eliminates external controller (vs. PIC16F1937-I/PT)
- Wide 2.0V to 5.5V operating range with nanoWatt Technology (vs. PIC16F913-I/PT)
- Enhanced Watchdog Timer with dedicated oscillator (vs. Generic 8-bit MCU designs)
Designhinweise
The PIC16F914-I/PT operates from 2.0 V to 5.5 V; place a 0.1 uF ceramic decoupling capacitor within 5 mm of each VDD pin (pins 11 and 32 on the 44-pin TQFP), with a bulk 10 uF tantalum or aluminum-polymer capacitor at the regulator output. nanoWatt sleep modes can drop quiescent current below 1 uA, but only if all unused peripherals are explicitly disabled in firmware. Use the secondary 32 kHz oscillator for low-power timekeeping without waking the main 20 MHz system clock.
On the 44-pin TQFP, dedicate the longest PCB traces to MCLR (pin 1) and PGC/PGD (pins 39/40) ICSP signals, keeping them at least 5 mm away from switching power or LCD bias networks. Place the COM0-COM2 pins (42-44) on the same PCB edge as the LCD glass connector with short direct traces. The two VDD/VSS pin pairs (11/12 and 31/32) require a ground plane stitch directly under the package to provide low-impedance return paths for the LCD charge pump.
Configuration bits must be programmed before the main application code runs; the default configuration enables the internal RC oscillator, disables the watchdog, and enables code protection by default. Always verify the configuration in MPLAB X IPE before releasing firmware. The 25 mA source/sink rating is per-pin, but the package is limited to 200 mA total - driving many high-current LEDs simultaneously requires external transistors. Always check the silicon errata for revision IDs A0-A3 because early PIC16F914 silicon had LCD bias anomalies.
The integrated LCD segment driver outputs are designed for static, 1/2, 1/3, or 1/4 bias multiplexed LCDs and include charge-pump bias generation. For best contrast across the operating temperature range, use 1/3 bias and 1/3 duty at 5V, and select an LCD glass with a temperature compensation foil. Route COM0-COM2 as a differential pair to the LCD connector to minimize switching noise that can otherwise couple into adjacent analog inputs like RA0/RA1.
The 44-pin TQFP has a theta_JA of approximately 50 C/W on a 1-oz 4-layer PCB. At maximum operating current (40 mA active from 5V), internal dissipation is around 200 mW, raising junction temperature by 10C above ambient. For industrial designs at +85C ambient, this leaves ample headroom; for extended-grade applications at +125C ambient with the PIC16F914-E/PT variant, derate operating current or attach a thermal via array under the exposed pad. Estimated: assume theta_JA = 50 C/W for a typical 4-layer JEDEC test board.
Compliance-Informationen
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; the industrial -40C to +85C grade only. Lead-free TQFP package per /PT suffix. For AEC-Q100 qualified equivalents in the same family, consult Microchip's automotive-grade portfolio.