PIC16LF1704-I/ST - 8-bit 32MHz XLP MCU 7KB Flash | Microchip
N.º da peça: PIC16LF1704-I/ST ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $2.4 | $2,40 |
| 10 | $2.16 | $21,60 |
| 100 | $1.93 | $193,00 |
| 500 | $1.72 | $860,00 |
| 1.000 | $1.52 | $1.520,00 |
PIC16LF1704-I/ST Visão geral
An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip integrating an 8-bit CPU core, Flash program memory, RAM, peripherals, and I/O. The PIC16LF1704 belongs to the PIC16 family → PIC16F170x sub-family → 8-bit PIC MCUs → microcontrollers → microprocessors and microcontrollers → semiconductors. It targets cost-sensitive general-purpose applications where low power consumption is critical, including IoT sensors, consumer electronics, and battery-powered instruments.
Key features include a high-speed comparator with 50 ns response time, a 10-bit ADC with computation (ADC2), an 8-bit DAC, two op-amps, up to 17 I/O pins with individually programmable weak pull-ups, and interrupt-on-change capability with edge selection. The XLP technology delivers ultra-low sleep currents in the nanoampere range, enabling multi-year battery life in sensor nodes and remote controls.
The PIC16LF1704 employs Microchip's enhanced mid-range core with a 14-bit instruction word and 32 MHz internal oscillator, supporting configurable oscillator modes, two 8-bit timers, and one 16-bit timer. The peripheral pin select (PPS) feature allows flexible remapping of digital peripherals to I/O pins, simplifying PCB layout and enabling compact 14-pin designs.
Typical applications include IoT sensor nodes, battery-powered remote controls, low-power sensor interfaces, LED lighting controllers, and small motor control. The device is supported by the MPLAB X IDE and the XC8 compiler, with in-circuit serial programming (ICSP) and in-circuit debugging via the MPLAB Snap or PICkit 4.
When designing with this part, verify supply decoupling with at least 0.1 µF ceramic capacitors near the VDD pin, leave unused pins configured as outputs, and respect the 1.8V–3.6V operating range. For lowest sleep current, disable unused peripherals via firmware and select the appropriate low-power sleep mode.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes beyond what the manufacturer datasheet alone offers, helping engineers select the PIC16LF1704 variant that best fits their PCB footprint, voltage budget, and application requirements.
Alternativas drop-in para PIC16LF1704-I/ST — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16LF1704-I/ST (mesmo formato e footprint) — diferindo em ADC, Package, Comparators, DAC, MSL Level.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16LF1704-I/SL
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$0.92 / unidade
Ver ficha técnica →PIC16LF1704-E/ST
✅ Drop-In✓ Em estoque
$0.98 / unidade
Ver ficha técnica →PIC16LF1704T-I/ST
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16LF1703-I/ST
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
PIC16LF1824-E/ST
✅ Drop-In✓ Em estoque
$1.42 / unidade
Ver ficha técnica →PIC16F1823-I/ST
✅ Drop-In✓ Em estoque
$0.85 / unidade
Ver ficha técnica →PIC16LF1704-I/ST Classificações máximas e características elétricas
| Core | PIC 8-bit RISC |
| Series | PIC16F170x/171x |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| RAM | 512 B |
| EEPROM | 256 B |
| Largura do barramento de dados | 8-bit |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | Up to 17 (12 on 14-pin TSSOP) |
| ADC | 10-bit with Computation (ADC2) |
| DAC | 8-bit |
| Op-amps | 2 |
| Comparators | 1 high-speed (50 ns response) |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Encapsulamento | 14-pin TSSOP (ST) |
| Tipo de montagem | Surface Mount |
| Faixa de temperatura de operação | -40C to +85C (Industrial) |
| Status RoHS | Compliant |
Configuração de pinos do PIC16LF1704-I/ST
| Pino 1 | RA3/MCLR/VPP — Digital I/O / Master Clear (Reset) / Programming voltage |
| Pino 2 | RC5/RX/DT — Digital I/O / EUSART RX / Data line |
| Pino 3 | RC4/C2OUT — Digital I/O / Comparator 2 output |
| Pino 4 | RC3/CCP1 — Digital I/O / Capture/Compare/PWM 1 |
| Pino 5 | RC2/AN6/OPA1IN+ — Digital I/O / Analog input 6 / Op-amp 1 non-inverting input |
| Pino 6 | RC1/AN5/OPA1IN- — Digital I/O / Analog input 5 / Op-amp 1 inverting input |
| Pino 7 | RC0/AN4/OPA1OUT — Digital I/O / Analog input 4 / Op-amp 1 output |
| Pino 8 | VSS — Ground reference |
| Pino 9 | RA2/AN2/DAC1OUT1 — Digital I/O / Analog input 2 / DAC1 output 1 |
| Pino 10 | RA1/AN1/C1IN1-/OPA2IN- — Digital I/O / Analog input 1 / Comparator 1 inverting input / Op-amp 2 inverting input |
| Pino 11 | RA0/AN0/C1IN+/OPA2OUT — Digital I/O / Analog input 0 / Comparator 1 non-inverting input / Op-amp 2 output |
| Pino 12 | RA5/AN3/C1OUT — Digital I/O / Analog input 3 / Comparator 1 output |
| Pino 13 | RA4/AN6/T0CKI — Digital I/O / Analog input 6 / Timer0 clock input |
| Pino 14 | VDD — Positive supply voltage (1.8V-3.6V) |
Aplicações típicas
PIC16LF1704-I/ST é adequado para 7 aplicaçãos: IoT Wireless Sensor Nodes, Battery-Powered Remote Controls, LED Lighting Controllers and Drivers, Industrial Sensor Signal Conditioning, Consumer Wearable Devices, Small Motor Control and Fan Drivers, Portable Medical Monitoring Devices.
IoT Wireless Sensor Nodes
The PIC16LF1704-I/ST fits IoT sensor node designs thanks to its nanoampere-range XLP sleep current and 1.8V-3.6V operating range that runs directly from a CR2032 or 2x AA battery pack. With 7 KB Flash and 512 B RAM it hosts lightweight BLE/Zigbee stacks or LoRaWAN MAC layers in conjunction with an external radio module. The integrated 10-bit ADC2 with computation enables hardware-averaged sensor readings that wake the CPU only when complete, dramatically extending battery life over firmware-loop ADC approaches. The two op-amps and high-speed comparator also condition analog sensor signals directly on-chip, eliminating external instrumentation amplifiers. Designers place a 0.1 µF ceramic decoupling capacitor near VDD and route the analog traces away from digital lines.
Recomendado
Battery-Powered Remote Controls
In battery-powered IR/RF remote controls the PIC16LF1704-I/ST drives a typical 32 MHz CPU to handle button scanning and packet encoding while drawing microampere-level average current thanks to XLP sleep modes. The 12 GPIO pins on the TSSOP-14 footprint easily accommodate 4x4 key matrices plus LED indicators. The 256-byte EEPROM stores user-configurable settings such as device pairing codes, eliminating external NVRAM chips. The 1.8V-3.6V operating range matches common alkaline and coin-cell battery chemistries. Designers use the high-speed comparator to detect low-battery voltage without ADC overhead and configure weak pull-ups on input pins to remove external resistors.
Recomendado
LED Lighting Controllers and Drivers
The PIC16LF1704-I/ST provides a low-cost intelligent controller in LED lighting applications, integrating PWM generation, 8-bit DAC for current setpoint, and two op-amps for current-sense amplification. Its nanoampere XLP sleep current supports standby-power designs meeting Energy Star and EU ecodesign requirements. The high-speed comparator triggers over-current protection in less than 50 ns, safeguarding LED chains from transient shorts. The 10-bit ADC2 hardware-averages photodiode readings for ambient-light sensing and dimming feedback loops. Designers configure the MSSP peripheral for inter-IC communication with LED driver ICs and use ICSP for in-field firmware updates via unused GPIO pins.
Recomendado
Industrial Sensor Signal Conditioning
The PIC16LF1704-I/ST's integrated analog peripherals make it well-suited for industrial 4-20 mA loop-powered sensor signal conditioning. Its 1.8V-3.6V operating range supports loop-powered designs drawing less than 3.5 mA budget while the two on-chip op-amps perform differential amplification of strain-gauge or RTD bridge signals. The 10-bit ADC2 with computation delivers oversampled 14-bit effective resolution for high-accuracy bridge readings without external ADCs. The high-speed comparator detects fault conditions for fail-safe shutdown. The TSSOP-14 footprint with -40C to +85C industrial temperature range fits compact DIN-rail transmitter housings.
Recomendado
Consumer Wearable Devices
Wearable fitness trackers and health monitors benefit from the PIC16LF1704-I/ST's XLP nanoampere sleep modes, low-voltage operation from coin cells, and on-chip analog front-end for heart-rate or SpO2 sensor conditioning. The 7 KB Flash holds firmware for step counting, BLE pairing state machines, and display drivers. The 256-byte EEPROM stores user preferences without external NVRAM. The two op-amps interface directly with photoplethysmography (PPG) sensor front-ends, while the high-speed comparator enables low-latency motion-detection interrupts from an external accelerometer. Designers use the peripheral pin select (PPS) feature to route I2C or SPI interfaces to the most layout-friendly pins.
Recomendado
Small Motor Control and Fan Drivers
The PIC16LF1704-I/ST provides a compact 8-bit controller for small brushless DC (BLDC) or brushed motor applications such as PC fans, small pumps, or vibration motors. The 32 MHz CPU speed handles sensorless BEMF zero-crossing detection in real time using the integrated high-speed comparator and one of the op-amps. The 10-bit ADC samples phase currents for closed-loop torque control, while the 8-bit DAC generates analog reference voltages for motor current setpoints. The TSSOP-14 footprint with up to 12 GPIO pins fits miniature driver boards, and the wide 1.8V-3.6V range supports direct battery operation. Designers use the ICSP interface for in-circuit firmware tuning.
Recomendado
Portable Medical Monitoring Devices
Portable medical devices such as pulse oximeters, glucose meters, and digital thermometers leverage the PIC16LF1704-I/ST's low-power XLP sleep modes, integrated 10-bit ADC2 with computation, and on-chip op-amps for sensor signal conditioning. The 1.8V-3.6V operating range supports direct battery operation from coin cells or rechargeable Li-ion packs. The 256-byte EEPROM stores calibration coefficients and patient history without external NVRAM. The TSSOP-14 footprint fits compact handheld enclosures. Designers use ADC2 hardware threshold detection to wake the CPU only when sensor readings exceed clinical thresholds, extending battery life over polling-based firmware approaches.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16LF1704-I/ST — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16LF1704-I/SL | PIC16LF1704-E/ST | PIC16LF1704T-I/ST | PIC16LF1703-I/ST | PIC16LF1824-E/ST | PIC16F1823-I/ST |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin TSSOP (ST) | 14-pin SOIC (SL) | 14-pin TSSOP (ST) | 14-pin TSSOP (ST) | 14-pin TSSOP (ST) | 14-pin TSSOP (ST) | 14-pin TSSOP (ST) |
| Flash Memory | 7 KB (4K x 14) | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB | 2 KB |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 2.3V to 5.5V |
| ADC | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC | 10-bit ADC2 | 10-bit ADC |
| DAC | 8-bit DAC | 8-bit DAC | 8-bit DAC | 8-bit DAC | No DAC | 5-bit DAC | No DAC |
| Temperature Grade | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Industrial (-40C to +85C) |
Principais diferenciais
- Industrial temperature grade for general-purpose commercial/industrial designs (vs PIC16LF1704-E/ST)
- On-chip ADC2 with computation and 8-bit DAC eliminates external analog ICs (vs PIC16LF1703-I/ST)
- Lower-voltage operation than PIC16F1823 for true 1.8V battery designs (vs PIC16F1823-I/ST)
Notas de projeto
Place a 0.1 µF ceramic decoupling capacitor as close as possible to the VDD pin (pin 14) to suppress high-frequency noise from the internal 32 MHz oscillator. Add a bulk capacitor (1-10 µF tantalum or ceramic) on the same rail to handle transient loads when peripherals such as the ADC or op-amps switch. For battery-powered designs, disable unused peripherals in firmware via the PMD registers and use the XLP sleep mode with the internal 32 kHz LFINTOSC to achieve nanoampere-level quiescent current.
Route analog input traces (AN0-AN6, OPA inputs) away from digital switching lines and the HFINTOSC oscillator pin to minimize coupling. Use a ground plane under the MCU for shielding, and place analog reference bypass capacitors close to the respective pins. The TSSOP-14 footprint has a thermal pad-tied-to-pin-8 (VSS); ensure good thermal dissipation by connecting pin 8 to a large ground pour. Keep ICSP programming pins (RA0, RA1, RA3/MCLR) accessible for in-circuit programming and debugging.
Do not exceed the maximum 3.6V supply voltage on the LF variant - this will damage the device. Verify that the MCLR pin (RA3) is pulled high through a 10 kΩ resistor for normal operation, and avoid leaving it floating during programming. The op-amp outputs (OPA1OUT, OPA2OUT) can drive capacitive loads but may oscillate with loads above 100 pF - add a series resistor of 100 Ω if needed. When migrating from PIC16F to PIC16LF variants, ensure the supply stays above 1.8V in all operating modes including sleep, as the LF device will reset if VDD drops below the brown-out threshold.
For high-accuracy ADC readings, the ADC2 module supports hardware averaging across 1, 4, 8, 16, 32, or 64 samples - this reduces the effective sample rate but dramatically improves SNR for low-frequency sensor measurements. Acquire samples immediately after exiting sleep mode to avoid digital switching noise. Use the dedicated ADC channel pins and avoid mixing analog and digital functions on the same pin where possible. The high-speed comparator responds in 50 ns but draws additional current - enable it only during active measurements and disable in sleep mode.
Informações de conformidade
RoHS and lead-free compliance confirmed via Microchip product page and distributor listings. The PIC16LF1704 is not AEC-Q100 qualified - for automotive applications, the PIC16F1704-E variant or dedicated automotive-grade parts are recommended.
