PIC16F1934T-I/PT - 32MHz 8-bit MCU 7KB Flash LCD XLP | Microchip
N.º de pieza: PIC16F1934T-I/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.13 | $3,13 |
| 10 | $2.91 | $29,10 |
| 100 | $2.62 | $262,00 |
| 500 | $2.34 | $1.170,00 |
| 1.000 | $2.05 | $2.050,00 |
PIC16F1934T-I/PT Descripción general
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory and peripherals around an 8-bit data path. It sits within the broader taxonomy: microcontroller -> embedded processor -> semiconductor. PIC microcontrollers from Microchip use a RISC Harvard architecture optimized for deterministic interrupt response and ultra-low power consumption, making them dominant in cost-sensitive battery-powered and human-interface designs.
Key features of this part include a 32 MHz internal oscillator, 14-channel 10-bit ADC, multiple PWM modules, hardware USART, SPI and I2C peripherals, an integrated LCD driver with charge pump, and nanoWatt XLP technology that holds sleep current below typical 50 nA levels. The 44-pin TQFP package exposes 36 general-purpose I/O lines plus dedicated oscillator and programming/debug pins.
Architecturally, the device combines a 14-bit instruction word PIC core with a separate data bus for SRAM access, plus an on-chip 32 kHz oscillator for real-time-clock and watchdog operation. The integrated segmented-LCD driver can directly bias glass displays up to a defined segment count, eliminating external driver ICs and reducing BOM cost in metering and appliance panels.
Typical applications include white-goods and appliance user interfaces with LCD panels, battery-powered sensor nodes, industrial meters, remote controls, and consumer devices requiring low standby power. The wide 2.3-5.5 V supply range also makes it tolerant of single-cell lithium, two-AA, USB and 5 V regulated rails.
When designing with this MCU, allocate PCB area for the ICSP programming header, ensure the analog and digital grounds share a single point, and follow Microchip TB3013 layout guidelines for the analog supply pin. The 'T' suffix indicates tape-and-reel packaging for high-volume assembly.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the standalone manufacturer datasheet.
Alternativas directas para PIC16F1934T-I/PT — 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 PIC16F1934T-I/PT (mismo factor de forma y huella) — difiere en ADC, Program Memory (Flash), Timers, Package, Low-Power Technology.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16F1934-I/PT
✅ Sustitución directa✓ En stock
$1.66 / unidad
Ver hoja de datos →PIC16F1934T-I/PTVAO
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16F1934-I/ML
✅ Sustitución directa✓ En stock
$1.74 / unidad
Ver hoja de datos →PIC16F1934T-I/MV
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC16F1936T-I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16F1937T-I/PT
✅ Sustitución directa✓ En stock
$2.55 / unidad
Ver hoja de datos →PIC16F1939T-I/PT
✅ Sustitución directa✓ En stock
$3.25 / unidad
Ver hoja de datos →PIC16F1934T-I/PT Valores máximos y características eléctricas
| Core Architecture | PIC 8-bit RISC (14-bit instruction word) |
| Program Memory | 7 KB Flash (4K x 14) |
| SRAM | 256 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Tensión de alimentación | 2.3 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, 14-channel |
| Encapsulado | 44-pin TQFP (10x10 mm) |
| Temperatura de funcionamiento | -40 °C to +85 °C (Industrial) |
| Tipo de montaje | Surface Mount |
| Low-Power Technology | nanoWatt XLP |
| Integrated LCD Driver | Yes |
| Communication Interfaces | USART, SPI, I2C |
| Estado RoHS | Compliant |
Configuración de pines de PIC16F1934T-I/PT
| Pin 1 | RA0 — Digital I/O / analog input |
| Pin 2 | RA1 — Digital I/O / analog input |
| Pin 3 | RA2 — Digital I/O / analog input |
| Pin 4 | RA3 — Digital I/O / analog input |
| Pin 5 | RA4 — Digital I/O / analog input |
| Pin 6 | RA5 — Digital I/O / analog input |
| Pin 7 | RA6 — Digital I/O / oscillator output |
| Pin 8 | RA7 — Digital I/O / oscillator input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply voltage |
| Pin 11 | RB0 — Digital I/O / interrupt-on-change |
| Pin 12 | RB1 — Digital I/O / interrupt-on-change |
| Pin 13 | RB2 — Digital I/O / interrupt-on-change |
| Pin 14 | RB3 — Digital I/O / interrupt-on-change |
| Pin 15 | RB4 — Digital I/O / interrupt-on-change |
| Pin 16 | RB5 — Digital I/O / interrupt-on-change |
| Pin 17 | RB6 — Digital I/O / ICSP PGC |
| Pin 18 | RB7 — Digital I/O / ICSP PGD |
| Pin 19 | RC0 — Digital I/O / analog input |
| Pin 20 | RC1 — Digital I/O / analog input |
| Pin 21 | RC2 — Digital I/O / analog input |
| Pin 22 | RC3 — Digital I/O / analog input |
| Pin 23 | RC4 — Digital I/O / analog input |
| Pin 24 | RC5 — Digital I/O / analog input |
| Pin 25 | RC6 — Digital I/O / TX/CK |
| Pin 26 | RC7 — Digital I/O / RX/DT |
| Pin 27 | RD0 — Digital I/O |
| Pin 28 | RD1 — Digital I/O |
| Pin 29 | RD2 — Digital I/O |
| Pin 30 | RD3 — Digital I/O |
| Pin 31 | RD4 — Digital I/O |
| Pin 32 | RD5 — Digital I/O |
| Pin 33 | RD6 — Digital I/O |
| Pin 34 | RD7 — Digital I/O |
| Pin 35 | RE0 — Digital I/O / analog input |
| Pin 36 | RE1 — Digital I/O / analog input |
| Pin 37 | RE2 — Digital I/O / analog input |
| Pin 38 | RE3 — Digital I/O / MCLR (reset) |
| Pin 39 | VSS — Ground reference |
| Pin 40 | VDD — Positive supply voltage |
| Pin 41 | RF0 — Digital I/O / LCD segment |
| Pin 42 | RF1 — Digital I/O / LCD segment |
| Pin 43 | RF2 — Digital I/O / LCD segment |
| Pin 44 | RF3 — Digital I/O / LCD segment |
Aplicaciones típicas
PIC16F1934T-I/PT es adecuado para 7 aplicacións: Appliance User Interface with LCD Panel, Battery-Powered IoT Sensor Node, Industrial Metering and Data Logging, Consumer Remote Control, Automotive Body Electronics, White Goods and HVAC Control, Educational and Hobby Development Board.
Appliance User Interface with LCD Panel
The PIC16F1934T-I/PT is well matched to white-goods and appliance HMIs because its integrated segmented LCD driver eliminates external driver ICs and reduces BOM cost. With 36 I/O pins the MCU directly keys a 4x4 matrix plus drives up to the family LCD segment count on glass panels, while nanoWatt XLP keeps standby current below 50 nA so the appliance meets IEC 62301 standby targets. The 2.3-5.5 V supply range tolerates direct rectification from mains adapters without an LDO. Real-world designs use RA0-RA5 for key scanning, RC0-RC7 for LCD segments, and the 32 MHz internal oscillator for button-debounce timing. The wide -40 to +85 °C industrial range covers unheated enclosures in laundry and kitchen installations.
Recomendado
Battery-Powered IoT Sensor Node
The PIC16F1934T-I/PT suits battery-powered IoT sensor nodes through nanoWatt XLP sleep modes below 50 nA typical, enabling 5-10 year coin-cell operation with periodic sensor reads. The 14-channel 10-bit ADC connects directly to thermistor, photocell and voltage-divider sensors, while the hardware I2C/SPI peripherals interface to wireless transceivers without bit-banging. Its 2.3-5.5 V supply is friendly to 2xAA alkaline, single-cell Li-ion and regulated 3.3 V rails from energy-harvest PMICs. The 32 MHz CPU provides enough throughput for local sensor fusion or wake-word processing between transmissions. Compared with 32-bit Cortex-M0 alternatives, the PIC16F1934T-I/PT typically cuts active current by 30-50% at equivalent throughput.
Recomendado
Industrial Metering and Data Logging
The PIC16F1934T-I/PT fits industrial metering because its 256 B EEPROM provides non-volatile storage for calibration constants, run-hour counters and tamper flags, while the 256 B SRAM supports rolling-window measurement buffers. The integrated 32 kHz LP oscillator drives the timer1 real-time clock for interval logging, and the USART interfaces to isolated RS-485 transceivers like the ISL3179 for utility meter networks. Its 32 MHz core executes RMS calculations and pulse counting on CT/PT inputs sampled by the 10-bit ADC at rates above 50 ksps. The -40 to +85 °C industrial temperature range meets outdoor cabinet requirements from IEC 62053-22. Compared with discrete counter ICs, this part adds display, comms and logic in a single chip.
Recomendado
Consumer Remote Control
The PIC16F1934T-I/PT is ideal for IR/RF remote controls because nanoWatt XLP deep sleep holds current below 50 nA so two AAA cells last the multi-year shelf life of the product. The hardware PWM drives an IR LED at 38 kHz carrier without software timing overhead, while interrupt-on-change wakes the part on key press within microseconds. The 2.3-5.5 V supply directly supports alkaline, NiMH and lithium coin cells. The 7 KB flash accommodates manufacturer ID codes, multi-protocol libraries and pairing sequences. Compared with ASIC encoder ICs, the PIC16F1934T-I/PT allows firmware-side protocol updates and avoids mask charges for low-volume SKUs.
Recomendado
Automotive Body Electronics
The PIC16F1934T-I/PT serves automotive body modules such as mirror controls, seat-position memories and lighting nodes when specified as the -PTVAO or -I/MV automotive variant. Its nanoWalt XLP modes handle CAN/LIN wake-up scenarios below 100 uA, and the 44-pin TQFP package is pin-compatible with QFN layouts on the same PCB. The 14-channel ADC multiplexes multiple 12V-tolerant sensor inputs through resistor dividers, and the 32 MHz core processes debounce and PWM for LED dimming above 200 Hz. AEC-Q100 screening on the VAO variant supports underhood and cabin deployments. Compared with bare-metal 32-bit MCUs, this part is typically 30-40% cheaper in volume.
Recomendado
White Goods and HVAC Control
The PIC16F1934T-I/PT powers washing-machine, dishwasher and HVAC control boards that need a segmented LCD or LED display plus triac/PWM control of pumps and fans. Its 36 I/O lines multiplex keypad, triac zero-cross detection, NTC temperature sensors via the 10-bit ADC and relay drivers. The integrated LCD driver simplifies front-panel glass in mid-range appliances. The 2.3-5.5 V supply and -40 to +85 °C range survive harsh back-panel environments with surge and brown-out events up to 5.5 V on VDD. Compared with STM8 and ATmega alternatives in TQFP-44, this part offers drop-in compatibility with existing PIC ecosystem code libraries, easing debug and permitting.
Recomendado
Educational and Hobby Development Board
The PIC16F1934T-I/PT is a popular MCU on hobbyist development boards because the 44-pin TQFP package has 0.8 mm pitch pads that are hand-solderable with practice and breakout-friendly on a 0.1-inch prototyping grid. Its 32 MHz instruction rate, 7 KB flash and free MPLAB X IDE + XC8 compiler lower the entry barrier for students. nanoWatt XLP demos show sleep-current measurements on a uCurrent or Joulescope. The PICkit 4 or Snap programmer connects to the ICSP pins (RB6/PGD, RB7/PGC, MCLR) for in-circuit debug. Compared with ATmega328P, this part exposes more I/O and integrated LCD capability in the same through-hole-friendly breakout area.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16F1934T-I/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16F1934-I/PT | PIC16F1934-I/ML | PIC16F1936T-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (PT) | TQFP-44 (same) | QFN-44 (ML) - pinout same but footprint differs | TQFP-44 (same) |
| Program Memory | 7 KB Flash | 7 KB Flash | 7 KB Flash | 14 KB Flash |
| SRAM | 256 B | 256 B | 256 B | 512 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| I/O Pins | 36 | 36 | 36 | 36 |
| Integrated LCD Driver | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Diferenciadores clave
- Integrated segmented LCD driver eliminates external driver IC (frente a PIC16F1934-I/ML (QFN package variant))
- Tape-and-reel packaging for high-volume SMT (frente a PIC16F1934-I/PT (tray format))
- Up to 14 KB flash on same TQFP-44 footprint for scalable firmware (frente a PIC16F1936T-I/PT (14 KB flash))
Notas de diseño
Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the VDD/VSS pins, plus a bulk 10 uF tantalum or aluminum-polymer cap on the board's main supply rail. For nanoWatt XLP designs, route the analog AVdd and AVss pins separately from digital VDD/VSS when ADC accuracy matters, tying them together at a single point under the IC.
Route the ICSP signals PGC (RB6) and PGD (RB7) as a 2-wire bus with MCLR pulled high through 10 kohm. Place a 4.7 kohm resistor in series with MCLR for in-circuit programming robustness. Avoid long traces crossing noisy switching nodes; the 44-pin TQFP thermal pad is not present so copper pour on the bottom side is acceptable for heat spreading only, not electrical connection.
Keep the 32 MHz oscillator traces short and symmetric, with a guard ground ring on RA6/RA7. Place the load capacitor for the LP oscillator within 5 mm of the pins. For segmented-LCD glass, route SEG/COM traces with matched lengths and keep them away from PWM outputs to avoid display artifacts; a ground-shielded flex cable is recommended for glass-to-PCB interconnect.
Do not exceed 5.5 V on any pin including MCLR during programming transients - add a TVS diode such as SMBJ5.0A on VDD for hot-plug protection. When migrating from PIC16F1934 to PIC16LF1934, verify that the supply rail does not exceed 3.6 V; the LF variant is NOT a drop-in for 5 V designs. Configuration word settings must match the chosen oscillator mode - HFINTOSC vs XT vs EC.
The USART, SPI and I2C pins on PIC16F1934T-I/PT are 5 V tolerant when the device is powered at 5 V, but become 3.3 V logic when VDD is 3.3 V. For mixed-voltage I2C buses, use a level shifter like the PCA9306 or discrete MOSFET translator. Add 4.7 kohm pull-ups on SDA/SCL as the PIC16F1934T-I/PT does not include internal weak pull-ups on these dedicated peripheral pins.
Información de cumplimiento
RoHS and lead-free confirmed per Microchip product page. Non-automotive base part - choose PIC16F1934T-I/PTVAO or PIC16F1934T-I/MV for AEC-Q100.