PIC16LF1704-E/ML - 8-bit MCU, 7KB Flash, 32MHz, 16-QFN | Microchip
Teilenummer: PIC16LF1704-E/ML ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.62 | $1,62 |
| 10 | $1.46 | $14,60 |
| 100 | $1.3 | $130,00 |
| 500 | $1.16 | $580,00 |
| 1.000 | $1.04 | $1.040,00 |
PIC16LF1704-E/ML Übersicht
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash for program code, SRAM for data, and often EEPROM for non-volatile storage), and configurable peripherals (ADC, timers, communication ports). Within the broader semiconductor hierarchy, an MCU sits under microcontrollers -> embedded processors -> digital ICs -> semiconductors. The 8-bit PIC16 family from Microchip targets cost-sensitive, low-power embedded control, distinguished from 16-bit dsPIC, 32-bit PIC32, and Arm Cortex-M parts by simpler instruction set, smaller code footprint, and lower unit cost.
Key features of the PIC16LF1704 include the XLP (eXtreme Low Power) technology with nanoWatt XLP sleep currents, a 10-bit ADC with computation (ADC2), an 8-bit DAC, two operational amplifiers, a zero-cross detector (ZCD), a comparator, configurable logic cells (CLC), and peripheral pin select (PPS) for flexible signal routing. It supports EUSART, I2C, and SPI communication, plus multiple PWM and CCP/Capture modules. This integration eliminates many external analog components, reducing BOM cost and PCB area.
Typical applications include IoT sensor nodes, low-power wireless transmitters, battery chargers, LED lighting controllers, and consumer appliances. The combination of integrated op-amps and a DAC enables closed-loop analog control without external amplifiers. The 1.8V minimum supply supports direct connection to single-cell Li-ion or 2x AA batteries.
Designers should note that the 'E' temperature suffix indicates the -40°C to +125°C extended industrial range. The 16-QFN's exposed pad must be soldered to a sufficient copper pour for thermal dissipation. Migrating between PIC16LF1704 family members (different package codes like /ST, /SL, /P) requires only verifying pinout against the datasheet's pin compatibility chart.
Drop-in-Alternativen für PIC16LF1704-E/ML – 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 PIC16LF1704-E/ML (gleiche Bauform und Footprint) – abweichend in Package, ADC, Comparators, Operating Temperature, Data EEPROM.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16LF1704-I/ML
✅ Drop-In✓ Auf Lager
$0.71 / Stück
Datenblatt ansehen →PIC16F1704-E/ML
✅ Drop-In✓ Auf Lager
$0.94 / Stück
Datenblatt ansehen →PIC16LF1704T-I/ML
✅ Drop-In✓ Auf Lager
$0.72 / Stück
Datenblatt ansehen →PIC16LF1824-I/ML
✅ Drop-In✓ Auf Lager
$0.82 / Stück
Datenblatt ansehen →PIC16LF1703-E/ML
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$0.44 / Stück
Datenblatt ansehen →PIC16LF1704-E/ML Grenzwerte & elektrische Eigenschaften
| Core Architecture | 8-bit PIC16 RISC |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data SRAM | 512 bytes |
| Data EEPROM | 128 bytes |
| Maximum CPU Clock | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Betriebstemperatur | -40 °C to +125 °C (E suffix) |
| Gehäuse | 16-pin QFN (4x4 mm) with exposed pad |
| Montageart | Surface Mount |
| ADC | 10-bit ADC with computation (ADC2) |
| DAC | 8-bit DAC |
| Operational Amplifiers | 2 on-chip op-amps |
| Comparators | 1 (with selectable reference) |
| Zero-Cross Detect (ZCD) | Yes |
| Configurable Logic Cells (CLC) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Communication | EUSART, I2C, SPI |
| PWM Modules | Yes (multiple) |
| Low-Power Technology | XLP (nanoWatt XLP) |
| RoHS-Status | Compliant |
| MSL-Level | 3 (168 hours) |
PIC16LF1704-E/ML Pin-Konfiguration
| Pin 1 | RA3/MCLR — Digital I/O / Master Clear (reset) input |
| Pin 2 | RA0 — Digital I/O / analog input |
| Pin 3 | RA1 — Digital I/O / analog input |
| Pin 4 | RA2 — Digital I/O / analog input |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RA4 — Digital I/O / analog input |
| Pin 7 | RA5 — Digital I/O / analog input |
| Pin 8 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 9 | RB4 — Digital I/O |
| Pin 10 | RB5 — Digital I/O |
| Pin 11 | RB6/PGC — Digital I/O / ICSP clock (programming) |
| Pin 12 | RB7/PGD — Digital I/O / ICSP data (programming) |
| Pin 13 | RB0/INT — Digital I/O / external interrupt |
| Pin 14 | RB1 — Digital I/O |
| Pin 15 | RB2 — Digital I/O |
| Pin 16 | RB3 — Digital I/O |
Typische Anwendungen
PIC16LF1704-E/ML ist geeignet für 7 Anwendungs: Battery-Powered IoT Sensor Node, LED Lighting Controller, Smart Battery Charger, Home Appliance Control Board, Portable Medical Monitoring Device, Automotive Sensor Interface Module, Industrial Process Sensor Transmitter.
Battery-Powered IoT Sensor Node
The PIC16LF1704-E/ML fits IoT sensor nodes because of its 1.8-3.6V supply range and nanoWatt XLP sleep currents, enabling multi-year battery life on a single CR2032 coin cell. Its 10-bit ADC with computation (ADC2) provides oversampling and averaging hardware, reducing firmware overhead for sensor readings. The integrated op-amps condition signals from thermistors, photodiodes, or load cells directly, eliminating external amplifiers. With 7 KB Flash and 512 B RAM, the MCU holds small wireless protocol stacks (BLE beaconing, LoRaWAN device drivers) plus application logic. Used between the battery and the sensor front-end, with the MCU waking on RTC interrupt to take readings and transmit.
Empfohlen
LED Lighting Controller
The PIC16LF1704-E/ML is well-suited for LED lighting controllers due to its on-chip op-amps and 8-bit DAC, which enable closed-loop current regulation without external analog ICs. The multiple PWM modules drive RGB or warm-white LED strings with smooth dimming via 16-bit PWM resolution. The zero-cross detector (ZCD) simplifies TRIAC-based AC phase-cut dimming interfaces, replacing discrete zero-cross circuits. Operated from a 3.3V regulated rail derived from mains, the MCU controls LED current via a MOSFET driver while monitoring thermal feedback. EUSART links to wireless modules for smart-lighting control.
Empfohlen
Smart Battery Charger
The PIC16LF1704-E/ML fits smart battery chargers thanks to its integrated op-amps for current/voltage sense amplification, 10-bit ADC for precise measurement, and 8-bit DAC for programmable reference. The ZCD synchronizes charging cycles to AC mains frequency, reducing EMI and improving power factor. The 1.8-3.6V VDD range suits direct Li-ion cell monitoring. Firmware in 7 KB Flash implements CC-CV charging profiles, temperature foldback, and charge termination algorithms. The CLC peripheral builds state-machine logic in hardware, offloading the CPU during safety-critical sequences.
Empfohlen
Home Appliance Control Board
The PIC16LF1704-E/ML serves in home appliance controls (coffee machines, blenders, washing machines) because of its robust -40°C to +125°C extended temperature range ('E' suffix) and integrated analog peripherals. The two op-amps sense motor current and temperature, while the DAC generates programmable reference voltages for comparator-based threshold detection. The PWM modules drive TRIAC or MOSFET power stages for heater and motor control. PPS flexibility lets designers remap peripheral signals to alternative pins, simplifying PCB routing. The 16-QFN package fits compact appliance main boards.
Empfohlen
Portable Medical Monitoring Device
The PIC16LF1704-E/ML fits portable medical devices (pulse oximeters, glucose meters, wearable monitors) because its nanoWatt XLP technology extends battery life while integrated op-amps condition biomedical sensor signals directly. The 10-bit ADC with computation performs oversampling for noise reduction on photoplethysmography (PPG) or electrochemical sensor signals. The 1.8V minimum supply supports direct coin-cell operation for disposable-style devices. CLC peripherals implement safety interlocks in hardware, freeing the CPU for measurement processing. The compact 16-QFN package (4x4 mm) fits wearable form factors.
Empfohlen
Automotive Sensor Interface Module
The PIC16LF1704-E/ML (E suffix for -40°C to +125°C) handles automotive sensor interface tasks such as tire pressure monitoring, occupancy detection, or interior lighting controllers. Its integrated op-amps interface directly to resistive sensor bridges (pressure, humidity) without external instrumentation amplifiers. The ZCD module detects 50/60 Hz mains zero-crossings for sync rectification in lighting ballasts. EUSART and SPI enable communication with body control modules. While not AEC-Q100 qualified itself, it fits non-safety automotive subsystems. The 16-QFN withstands automotive vibration when properly soldered with the exposed pad grounded.
Empfohlen
Industrial Process Sensor Transmitter
The PIC16LF1704-E/ML serves 4-20 mA loop-powered industrial sensor transmitters because of its low-voltage operation, integrated op-amps for signal conditioning, and 10-bit ADC for measurement. The on-chip DAC generates the 4 mA offset current precisely, eliminating external DAC ICs. The ZCD enables AC-powered sensor synchronization. The -40°C to +125°C extended temperature range handles harsh factory environments. CLC peripherals implement HART or proprietary modulation protocols in hardware, reducing CPU load. The compact 16-QFN fits into standard sensor head enclosures.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16LF1704-E/ML – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16LF1704-I/ML | PIC16F1704-E/ML | PIC16LF1704T-I/ML | PIC16LF1824-I/ML | PIC16LF1703-E/ML |
|---|---|---|---|---|---|---|
| Package | 16-QFN (4x4 mm) | 16-QFN (4x4) - same | 16-QFN (4x4) - same | 16-QFN (4x4) - same | 16-QFN (4x4) - same | 16-QFN (4x4) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB | 3.5 KB |
| RAM | 512 B | 512 B | 512 B | 512 B | 256 B | 256 B |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Temperature Range | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) |
| Integrated Op-Amps | 2 | 2 | 2 | 2 | 0 | 0 |
| 8-bit DAC | Yes | Yes | Yes | Yes | No | No |
| CLC / ZCD / PPS | Yes (all three) | Yes (all three) | Yes (all three) | Yes (all three) | PPS only | No |
Wichtigste Unterscheidungsmerkmale
- Higher memory capacity (vs. PIC16LF1703-E/ML)
- Integrated analog peripherals (vs. PIC16LF1824-I/ML)
- Extended temperature range (vs. PIC16LF1704-I/ML)
- Lower-voltage operation (vs. PIC16F1704-E/ML)
- PPS signal routing flexibility (vs. PIC16LF1703-E/ML)
Designhinweise
The 16-QFN package exposes a thermal pad (EP) on the underside that MUST be soldered to a PCB copper pour for proper heat dissipation and electrical grounding. Per the Microchip PIC16(L)F1704/8 datasheet, failing to solder the EP increases junction-to-ambient thermal resistance by 5-10x and can cause erratic operation or latch-up. Recommended layout: a 3x3 mm (minimum) copper pad on the top layer connected to VSS via thermal vias (4-9 vias, 0.3 mm drill) to a bottom-layer ground pour. For applications near maximum 32 MHz operation, follow Microchip AN2074 thermal management guidance.
Decouple VDD with a 0.1 µF ceramic capacitor placed within 3 mm of the VDD pin and a 1 µF bulk capacitor nearby. For ADC accuracy, add a 10 µF tantalum or ceramic capacitor on AVDD (if used separately). According to the Microchip datasheet, the XLP sleep currents can drop below 20 nA in deep sleep, but only if all I/O pins are configured as analog (high-impedance) and the WDT is disabled. Use the PIC16LF1704's built-in Fixed Voltage Reference (FVR) for stable ADC measurements rather than VDD, which varies with battery voltage.
Common pitfalls: (1) The MCLR pin (pin 1, shared with RA3) requires a 10 kΩ pull-up to VDD for normal operation; do not leave floating. (2) The ICSP pins PGC (RB6) and PGD (RB7) must not be held low at power-up or the MCU enters programming mode instead of running user code. (3) PPS remapping must be configured in software before the peripheral is enabled; misconfigured PPS causes peripherals to drive the wrong pin. (4) The LF variant's 3.6V absolute maximum is hard - exceeding it (even briefly during hot-plug) destroys the part. Use TVS protection on exposed connectors.
Place the 32 MHz external crystal (if used, rather than internal oscillator) within 5 mm of the OSC1/OSC2 pins with short traces and a grounded guard ring to minimize EMI pickup. For ADC accuracy, route analog signals (ANx, op-amp inputs) away from digital switching lines (PWM outputs, clock traces) and keep them on the opposite side of any ground split. The PIC16LF1704-E/ML's 10-bit ADC achieves ±1 LSB accuracy only with proper PCB layout per Microchip AN248 - reference Microchip's ADC design guidelines for sensor-interface applications.
Compliance-Informationen
RoHS and REACH compliant per Microchip product declarations. Lead-free matte-tin finish. Not AEC-Q100 qualified - for automotive safety-critical applications, use AEC-Q100-qualified PIC16F variants or contact Microchip for automotive-grade equivalents. Halogen-free per JESD709. Conflict-mineral compliant per Microchip's CMRT filing.
