PIC16F914-E/PT - 8-bit 20MHz 7KB Flash MCU w/ LCD | Microchip
MPN: PIC16F914-E/PT ✓ فعالPIC16F914-E/PT جائزہ
An 8-bit PIC microcontroller (PIC = Peripheral Interface Controller) is a Harvard-architecture RISC MCU designed for deterministic real-time control. Within the semiconductor hierarchy it sits below 32-bit ARM Cortex-M parts, offering lower cost, lower power, and simpler toolchains while delivering more than enough MIPS for appliances, sensors, and human-interface products. The PIC16 mid-range core used by the PIC16F914 family provides 14-bit instruction words, a single accumulator (WREG), and a hardware stack, which simplifies programming in MPLAB X IDE while preserving real-time interrupt performance.
Key differentiating features include on-chip LCD segment driving (up to 96 segments with software-controlled contrast and bias), nanoWatt technology that drops quiescent current below 1 µA in sleep, and an internal oscillator that eliminates the external crystal in cost-sensitive designs. Brown-out Reset (BOR), Power-on Reset (POR), and an Extended Watchdog Timer safeguard firmware integrity in industrial environments. The 44-TQFP footprint exposes 35 I/O lines - enough to drive a multi-button keypad, an alphanumeric LCD glass, and a serial sensor bus simultaneously.
Typical applications include white-good control panels, point-of-sale terminals, thermostat and HVAC front-panel controllers, blood-pressure monitors, and low-cost industrial gauges. The wide 2.0 V to 5.5 V operating range lets the same firmware run from two AA cells, a CR2032 backup, or a regulated 5 V rail. When porting firmware, the PIC16F917 (with 14 KB Flash) and PIC16F913 (4 KB Flash) preserve the same LCD pinout and register map, allowing PCB reuse across cost/feature variants.
کے لیے ڈراپ اِن متبادل PIC16F914-E/PT — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16F914-E/PT (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Timers, ADC, Program Memory (Flash), Communication.
PIC16F914-I/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F914T-I/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F913T-I/ML
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F887T-I/ML
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F884T-I/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F882T-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F914-E/PT زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core | PIC16 (Harvard RISC, 14-bit instruction word) |
| Core Size | 8-bit |
| زیادہ سے زیادہ کلاک فریکوئنسی | 20 MHz (200 ns instruction cycle) |
| Program Memory (Flash) | 7 KB (4K x 14) |
| Data EEPROM | 256 B |
| Data SRAM | 256 B |
| I/O Pins | 35 |
| Operating Voltage Range | 2.0 V to 5.5 V |
| LCD Segments | Up to 96 segments (integrated driver) |
| Timers | 2 x 8-bit (TMR0, TMR2) + 1 x 16-bit (TMR1 with RTC) |
| ADC | 1 x 10-bit ADC, 8 channels |
| Communication | AUSART (Master I2C/SPI/EUSART) |
| Watchdog Timer | Extended Watchdog Timer (EWDT) |
| Oscillator | Internal 32 kHz to 8 MHz; external up to 20 MHz |
| I/O Source/Sink Current | 25 mA per pin |
| پیکیج | 44-pin TQFP (PT) 10 x 10 mm |
| ماؤنٹنگ ٹائپ | Surface Mount |
| آپریٹنگ درجہ حرارت | -40 °C to +125 °C (extended 'E' suffix) |
| MSL لیول | 3 (168 hours, JEDEC J-STD-020) |
| RoHS اسٹیٹس | Compliant |
PIC16F914-E/PT پن کنفیگریشن
| پن 1 | MCLR/RA5 — Master Clear (Reset) input / PORTA bit 5 |
| پن 2 | RA0 — PORTA bit 0 (digital I/O or analog) |
| پن 3 | RA1 — PORTA bit 1 (digital I/O or analog) |
| پن 4 | RA2 — PORTA bit 2 (digital I/O or analog) |
| پن 5 | RA3 — PORTA bit 3 (digital I/O or analog) |
| پن 6 | RA4 — PORTA bit 4 (digital I/O or analog) |
| پن 7 | RA5 — PORTA bit 5 (also MCLR alt) |
| پن 8 | RE0 — PORTE bit 0 |
| پن 9 | RE1 — PORTE bit 1 |
| پن 10 | RE2 — PORTE bit 2 |
| پن 11 | VDD — Positive supply (2.0 V to 5.5 V) |
| پن 12 | VSS — Ground reference |
| پن 13 | OSC1/CLKIN — Crystal oscillator input / external clock |
| پن 14 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| پن 15 | RC0 — PORTC bit 0 |
| پن 16 | RC1 — PORTC bit 1 |
| پن 17 | RC2 — PORTC bit 2 |
| پن 18 | RC3 — PORTC bit 3 |
| پن 19 | RC4 — PORTC bit 4 / LCD SEG0 |
| پن 20 | RC5 — PORTC bit 5 / LCD SEG1 |
| پن 21 | RC6 — PORTC bit 6 / LCD SEG2 |
| پن 22 | RC7 — PORTC bit 7 / LCD SEG3 |
| پن 23 | RD0 — PORTD bit 0 / LCD SEG4 |
| پن 24 | RD1 — PORTD bit 1 / LCD SEG5 |
| پن 25 | RD2 — PORTD bit 2 / LCD SEG6 |
| پن 26 | RD3 — PORTD bit 3 / LCD SEG7 |
| پن 27 | RD4 — PORTD bit 4 / LCD SEG8-23 (mux) |
| پن 28 | RD5 — PORTD bit 5 / LCD SEG8-23 (mux) |
| پن 29 | RD6 — PORTD bit 6 / LCD SEG8-23 (mux) |
| پن 30 | RD7 — PORTD bit 7 / LCD SEG8-23 (mux) |
| پن 31 | VSS — Ground reference (second bond pad) |
| پن 32 | VDD — Positive supply (second bond pad) |
| پن 33 | RB0 — PORTB bit 0 |
| پن 34 | RB1 — PORTB bit 1 |
| پن 35 | RB2 — PORTB bit 2 |
| پن 36 | RB3 — PORTB bit 3 / PGM (low-voltage ICSP) |
| پن 37 | RB4 — PORTB bit 4 |
| پن 38 | RB5 — PORTB bit 5 |
| پن 39 | RB6 — PORTB bit 6 / PGC (ICSP clock) |
| پن 40 | RB7 — PORTB bit 7 / PGD (ICSP data) |
| پن 41 | VLCD3 — LCD bias pin 3 |
| پن 42 | VLCD2 — LCD bias pin 2 |
| پن 43 | VLCD1 — LCD bias pin 1 |
| پن 44 | COM0 — LCD common line 0 |
عام استعمالات
PIC16F914-E/PT کے لیے موزوں ہے 7 ایپلیکیشنs: Appliance Control Panel (White Goods), Thermostat / HVAC Front Panel Controller, Point-of-Sale Terminal Keypad, Blood-Pressure and Glucose Meter, Industrial Weighing Scale / Process Gauge, Battery-Powered Sensor Reader / Data Logger, Consumer Electronics Front Panel.
Appliance Control Panel (White Goods)
The PIC16F914-E/PT fits washing-machine, dishwasher, and microwave front panels because it integrates a 96-segment LCD driver, 35 I/O lines, and 25 mA source/sink capability for keypad LEDs. Its 2.0-5.5 V operating range survives 24 V mains-transient brown-outs when paired with a simple 5 V LDO. Per the Microchip datasheet, the AUSART peripheral runs the user-interface UART to a sub-MCU motor controller, while the 10-bit ADC reads NTC temperature sensors for the wash cycle.
تجویز کردہ
Thermostat / HVAC Front Panel Controller
In thermostat and HVAC user-interface designs the PIC16F914-E/PT drives a 7-segment LCD showing temperature setpoints and fan-mode indicators without an external driver IC. Its nanoWatt Sleep mode drops quiescent current below 1 µA while keeping the LCD active on a 32 kHz timer, extending battery life on common-wire thermostats to over 12 months. The 44-TQFP package exposes enough I/O for capacitive touch pads, a rotary encoder, and a backup EEPROM (MCP79410) for schedule retention.
تجویز کردہ
Point-of-Sale Terminal Keypad
POS terminals use the PIC16F914-E/PT to scan 4x4 or 5x5 keypads, drive an alphanumeric character LCD, and bridge to the main processor over AUSART. Its 256 B EEPROM stores calibration and pricing data for >1 M write cycles per byte, satisfying POS-grade durability requirements. The 44-TQFP provides 35 I/O lines, enough for 20 keypad keys plus segment LCD backlight PWM (CCP) and buzzer control, while the 20 MHz core keeps debounce firmware sub-millisecond.
تجویز کردہ
Blood-Pressure and Glucose Meter
Medical home-care devices benefit from the PIC16F914-E/PT's low 1 µA Sleep current, integrated 96-segment LCD, and 10-bit ADC that samples inflation-cuff pressure transducers. The 7 KB Flash fits BLE stack shim libraries plus a state-machine for cuff inflation, and nanoWatt Sleep preserves coin-cell life between measurements. Compliance engineers note the extended -40 to +125 °C temperature range supports storage in unheated environments, while the 256 B EEPROM holds patient log records.
تجویز کردہ
Industrial Weighing Scale / Process Gauge
Industrial weighing scales use the PIC16F914-E/PT to drive a 7- or 14-segment LCD readout, scan a 4x4 keypad, and digitize load-cell signals through its 10-bit ADC. The Extended -40 to +125 °C temperature range and BOR/POR safeguards meet factory-floor reliability expectations per the Microchip datasheet. With 35 I/O, the MCU also drives status LEDs and an RS-485 link (via external transceiver) for shop-floor aggregation without an additional display controller IC.
تجویز کردہ
Battery-Powered Sensor Reader / Data Logger
Remote sensor data loggers use the PIC16F914-E/PT to read sensor inputs, store samples in the 256-byte SRAM ring buffer or the 256-byte EEPROM, and display status on the integrated LCD. The wide 2.0-5.5 V supply range supports 2xAA alkaline, CR2032, or a 3.3 V regulated rail. nanoWatt Sleep with the 32 kHz TMR1 oscillator keeps average current under 50 µA while maintaining real-time clock accuracy for time-stamped logs.
تجویز کردہ
Consumer Electronics Front Panel
Audio amplifiers, set-top boxes, and home-cinema receivers use the PIC16F914-E/PT for front-panel UI: rotary encoder, IR receiver, multi-button keypads, and VFD/LCD readouts. Its AUSART links the front panel to the main audio processor, while 35 I/O support the standby LED, headphone jack sense, and volume rotary encoder simultaneously. The 256 B EEPROM preserves last-used settings across power cycles.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16F914-E/PT — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F914-I/PT | PIC16F914T-I/PT | PIC16F913T-I/ML | PIC16F887T-I/ML | PIC16F884T-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (PT) 10x10 mm | 44-TQFP (PT) 10x10 mm | 44-TQFP (PT) 10x10 mm | 44-QFN (ML) 8x8 mm | 44-QFN (ML) 8x8 mm | 44-TQFP (PT) 10x10 mm |
| Flash Memory | 7 KB | 7 KB | 7 KB | 4 KB | 14 KB | 7 KB |
| SRAM | 256 B | 256 B | 256 B | 256 B | 368 B | 256 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| LCD Driver (segments) | Yes (up to 96) | Yes (up to 96) | Yes (up to 96) | Yes (up to 60) | No | No |
| I/O Pins | 35 | 35 | 35 | 35 | 36 | 36 |
| Max Clock Frequency | 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 |
| Temperature Grade | Extended -40 °C to +125 °C | Industrial -40 °C to +85 °C | Industrial -40 °C to +85 °C | Industrial -40 °C to +85 °C | Industrial -40 °C to +85 °C | Industrial -40 °C to +85 °C |
اہم امتیازی خصوصیات
- Integrated 96-segment LCD driver (بمقابلہPIC16F887-I/ML)
- Extended -40 °C to +125 °C temperature grade (بمقابلہPIC16F914-I/PT)
- Dual full-tray factory stock at MicrochipDirect (بمقابلہPIC16F913T-I/ML)
ڈیزائن نوٹس
For battery-powered designs, set CONFIG to INTOSC and configure Fosc = LFINTOSC (31 kHz) before entering Sleep; this drops quiescent current below 1 µA per the Microchip PIC16F91X datasheet. The PIC16F914-E/PT can wake from Sleep via WDT timeout, an external interrupt on PORTB, or a TMR1 overflow - any of these is sufficient for keypad polling at 4 Hz. Decoupling must include a 100 nF X7R between VDD (pin 11 and pin 32) and the nearest VSS pad (pin 12 or pin 31); a 10 µF bulk capacitor is recommended at the supply rail.
Estimated: with a 44-TQFP having a typical 31 °C/W θJA on a 4-layer JEDEC EIA/JESD51 test board, dissipating 100 mW (the typical active current of 5 mA at 20 MHz × 5 V) yields a 3 °C junction rise - well within thermal limits. Place the 100 nF decoupling capacitors as close as possible to the VDD/VSS pin pairs and route analog AGND (if used) as a star ground returning directly to pin 12. The LCD segment traces should be routed in groups of 4 to 8 to minimize I/O-to-segment pin reassignment during firmware bring-up.
Do not connect RB3-RB7 to external pull-ups or pull-downs during ICSP programming - these pins serve dual duty as PGM (RB3), PGC (RB6), and PGD (RB7). Per the Microchip datasheet, in-circuit debug with PGC/PGD also uses these pins. Failure to isolate the programming pins prevents ICSP from working. Also configure CONFIG1's MCLRE bit to enable the external MCLR reset; disabling it allows pin 1 to be used as RA5 but loses the clean hardware reset.
تعمیل کی معلومات
RoHS and lead-free per Microchip product page; JEDEC J-STD-020 MSL-3 moisture-sensitivity rating for the TQFP package. The 'E' suffix denotes the extended temperature grade -40 °C to +125 °C, not AEC-Q100 qualification.
