PIC16LF1789T-I/ML - 28KB Flash 8-bit XLP MCU | Microchip 44-QFN
MPN: PIC16LF1789T-I/ML ✓ AktifPIC16LF1789T-I/ML Ringkasan
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), non-volatile data memory (EEPROM), and a rich set of peripherals such as ADCs, PWMs, communication interfaces, and timers. The PIC16F/LF178x family sits in the PIC16 mid-range tier within the broader 8-bit MCU taxonomy: 8-bit microcontroller -> microcontroller -> embedded IC -> semiconductor. The 'LF' prefix indicates the low-voltage, low-power variant of the PIC16F1789, trading slightly higher maximum frequency for deeper sleep-current savings.
Key features include a 12-bit ADC with up to 14 channels, multiple 10-bit PWMs, 2 op-amps, comparators, a 32 kHz low-power internal oscillator, and communication peripherals including EUSART, MSSP (I2C/SPI), and USB support on selected derivatives. The 44-QFN package reduces board area by approximately 50% versus the equivalent 44-pin TQFP, while the exposed pad offers a low thermal-resistance path for sustained CPU activity.
Typical applications include portable medical instrumentation, IoT sensor nodes, motor control with FOC algorithms, LED lighting controllers, and low-power industrial sensor hubs. The combination of high-performance analog peripherals and nanoWatt XLP technology enables designs that must wake periodically, sample, compute, and return to deep sleep on a single coin cell for years.
When designing with this part, place a 100 nF decoupling capacitor within 2 mm of each VDD/VSS pair and connect the central thermal pad to a continuous ground pour to manage thermal dissipation. The MPLAB X IDE and XC8 compiler provide full toolchain support, and the PICkit 5 or Snap debugger enables in-circuit programming and debugging via the two ICSP pins.
Alternatif penggantian untuk PIC16LF1789T-I/ML — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian PIC16LF1789T-I/ML (sama faktor bentuk dan footprint) — berbeda di dalam DAC, Package, ADC, Operating Temperature, Comparators.
PIC16LF1789-I/MV
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC16F1789-I/ML
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC16LF1789-E/P
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC16LF1788T-I/SS
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC16LF1787T-I/MV
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC16LF1789T-I/ML Rating Maksimal & Karakteristik Listrik
| Family | PIC16F/LF178x (PIC16 mid-range 8-bit MCU) |
| Core | 8-bit PIC16 enhanced mid-range |
| CPU Speed | 32 MHz (8 MIPS) |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data SRAM | 2 KB |
| Data EEPROM | 256 bytes |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Suhu Kerja | -40C to +85C (Industrial, 'I') |
| Paket | 44-pin QFN (8x8 mm) with exposed pad |
| ADC | 12-bit, up to 14 channels |
| DAC | 8-bit, multiple instances |
| Op-Amps | 2 on-chip operational amplifiers |
| Comparators | Yes, with selectable references |
| PWM | Multiple 10-bit PWM channels |
| Communication | EUSART, MSSP (I2C/SPI), USB (selected derivatives) |
| Timers | Multiple 8/16-bit timers |
| Internal Oscillator | 32 MHz HF + 31 kHz LF (XLP nanoWatt) |
| Tipe Mounting | Surface Mount |
| Level MSL | 3 (per JEDEC J-STD-020) |
| Status RoHS | Compliant |
Konfigurasi Pin PIC16LF1789T-I/ML
| Pin produk 1 | RA0 — PORTA I/O / analog input |
| Pin produk 2 | RA1 — PORTA I/O / analog input |
| Pin produk 3 | RA2 — PORTA I/O / analog input |
| Pin produk 4 | RA3 — PORTA I/O (digital only) |
| Pin produk 5 | RA4 — PORTA I/O / analog input |
| Pin produk 6 | RA5 — PORTA I/O / analog input |
| Pin produk 7 | RA6 — PORTA I/O |
| Pin produk 8 | RA7 — PORTA I/O |
| Pin produk 9 | VSS — Ground reference |
| Pin produk 10 | VDD — Positive supply voltage |
| Pin produk 11 | RB0 — PORTB I/O / analog / ICSPDAT |
| Pin produk 12 | RB1 — PORTB I/O / analog |
| Pin produk 13 | RB2 — PORTB I/O / analog |
| Pin produk 14 | RB3 — PORTB I/O / analog |
| Pin produk 15 | RB4 — PORTB I/O / analog |
| Pin produk 16 | RB5 — PORTB I/O / analog |
| Pin produk 17 | RB6 — PORTB I/O / ICSPCLK |
| Pin produk 18 | RB7 — PORTB I/O |
| Pin produk 19 | VSS — Ground reference |
| Pin produk 20 | VDD — Positive supply voltage |
| Pin produk 21 | RC0 — PORTC I/O / analog |
| Pin produk 22 | RC1 — PORTC I/O / analog |
| Pin produk 23 | RC2 — PORTC I/O / analog |
| Pin produk 24 | RC3 — PORTC I/O / analog |
| Pin produk 25 | RC4 — PORTC I/O / analog |
| Pin produk 26 | RC5 — PORTC I/O / analog |
| Pin produk 27 | RC6 — PORTC I/O / analog / TX |
| Pin produk 28 | RC7 — PORTC I/O / analog / RX |
| Pin produk 29 | VSS — Ground reference |
| Pin produk 30 | VDD — Positive supply voltage |
| Pin produk 31 | RD0 — PORTD I/O / analog |
| Pin produk 32 | RD1 — PORTD I/O / analog |
| Pin produk 33 | RD2 — PORTD I/O / analog |
| Pin produk 34 | RD3 — PORTD I/O / analog |
| Pin produk 35 | RD4 — PORTD I/O / analog |
| Pin produk 36 | RD5 — PORTD I/O / analog |
| Pin produk 37 | RD6 — PORTD I/O / analog |
| Pin produk 38 | RD7 — PORTD I/O / analog |
| Pin produk 39 | RE0 — PORTE I/O / analog |
| Pin produk 40 | RE1 — PORTE I/O / analog |
| Pin produk 41 | RE2 — PORTE I/O / analog |
| Pin produk 42 | RE3 — PORTE I/O (digital only) |
| Pin produk 43 | VSS — Ground reference |
| Pin produk 44 | VDD — Positive supply voltage |
Aplikasi Umum
PIC16LF1789T-I/ML cocok untuk 6 aplikasis: Battery-Powered IoT Sensor Node, Portable Medical Instrumentation, BLDC Motor Control with FOC, Smart LED Lighting Controller, Industrial Sensor Hub, USB HID Peripherals.
Battery-Powered IoT Sensor Node
The PIC16LF1789T-I/ML's 1.8-3.6 V supply range and nanoWatt XLP Sleep current below 50 nA enable multi-year coin-cell operation in IoT sensor nodes. With 28 KB Flash and 2 KB SRAM, it can hold a lightweight LoRaWAN/Sigfox stack, sensor drivers, and edge-processing logic. The 12-bit ADC with up to 14 channels reads temperature, humidity, and battery voltage directly. Place the MCU between the battery and the sensor load, wake periodically via WDT to sample and transmit, and return to deep Sleep. The 44-QFN keeps the PCB footprint under 9 mm x 9 mm, leaving room for a compact wireless module on the same board.
Direkomendasikan
Portable Medical Instrumentation
Medical wearables and point-of-care devices benefit from the PIC16LF1789T-I/ML's two on-chip op-amps for analog front-end signal conditioning, 12-bit ADC for sensor digitization, and nanoWatt Sleep for battery longevity. Operating from 1.8 V to 3.6 V, it accepts single Li-ion / 2xAA battery power directly. The 32 MHz core performs pulse-oximetry math or ECG R-peak detection in real time. Use the op-amps as transimpedance amplifiers for photodiode sensors, the ADC to digitize filtered outputs, and the EUSART to forward processed data over Bluetooth via an external transceiver. The 44-QFN exposed pad offers thermal headroom for sustained ADC conversions.
Direkomendasikan
BLDC Motor Control with FOC
Sensorless brushless DC motor control using field-oriented control runs efficiently on the PIC16LF1789T-I/ML at 32 MHz with its 8 MIPS throughput. The multiple 10-bit PWM channels drive a three-phase inverter, while the ADC synchronously samples back-EMF or shunt currents. The op-amps condition the current-sense signals directly on-chip, reducing external analog component count. Operating from a 2-3S Li-ion pack (within the 1.8-3.6 V VDD), the MCU coordinates commutation, PID loop, and protection logic. The 44-QFN exposed pad sustains full-speed operation without thermal throttling in compact drone or fan applications.
Direkomendasikan
Smart LED Lighting Controller
Connected LED drivers use the PIC16LF1789T-I/ML to handle PWM dimming across multiple channels, color-mixing math, and wireless protocol glue. The 8-bit PWM channels smoothly fade RGBW channels while the DACs drive constant-current references. The MSSP I2C peripheral interfaces to wireless modules or ambient-light sensors, while the EUSART connects to DMX-512 in stage-lighting variants. Supply is typically 3.3 V from a switching pre-stage, and Sleep mode drops consumption below 1 uA when the lights are off. The 44-QFN keeps the driver board small enough to fit inside MR16 and downlight form factors.
Direkomendasikan
Industrial Sensor Hub
Industrial 4-20 mA loop-powered transmitters and Modbus sensor hubs deploy the PIC16LF1789T-I/ML because of its 1.8-3.6 V range tolerant of loop dropouts, 12-bit ADC with up to 14 channels for multi-sensor reading, and EUSART for RS-485 Modbus RTU communication. Sleep currents below 50 nA extend loop-line powered life, while the 32 MHz core executes calibration and linearization in real time. The comparators trigger alerts on threshold crossings without waking the core. The 44-QFN footprint simplifies integration into compact field-mount sensor enclosures with thermal headroom for -40C to +85C industrial temperature range.
Direkomendasikan
USB HID Peripherals
Selected derivatives in the PIC16LF178x family integrate USB 2.0 Full-Speed hardware, and the PIC16LF1789T-I/ML serves as the host MCU in USB HID input devices such as keyboards, mice, custom controllers, and PC accessories. The 28 KB Flash accommodates HID report descriptors, debounce logic, and protocol state machines, while the 2 KB SRAM buffers HID reports. USB D+/D- lines connect directly to the MCU without external transceivers. Operating from USB VBUS (5 V regulated to 3.3 V by an internal LDO regulator) makes bus-powered designs simple. The 44-QFN fits inside compact peripheral enclosures.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC16LF1789T-I/ML — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | PIC16LF1789-I/MV | PIC16F1789-I/ML | PIC16LF1789-E/P | PIC16LF1788T-I/SS | PIC16LF1787T-I/MV |
|---|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) | UQFN-44 - smaller body | 44-QFN - same | PDIP-40 - through-hole | SSOP-28 - smaller body | UQFN-44 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 8-bit PIC16, 32 MHz / 8 MIPS | 8-bit PIC16, 32 MHz / 8 MIPS | 8-bit PIC16, 32 MHz / 8 MIPS | 8-bit PIC16, 32 MHz / 8 MIPS | 8-bit PIC16, 32 MHz / 8 MIPS | 8-bit PIC16, 32 MHz / 8 MIPS |
| Program Flash | 28 KB | 28 KB | 28 KB | 28 KB | 14 KB | 14 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB | 1 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 128 B | 128 B |
| VDD Range | 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 |
| Op-Amps | 2 on-chip | 2 on-chip | 2 on-chip | 2 on-chip | 1 on-chip | 1 on-chip |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
Diferensiator Kunci
- On-chip dual op-amps eliminate external analog front-end cost (vsPIC16LF1788T-I/SS)
- 28 KB Flash gives 4 KB code headroom over the lower-memory variant (vsPIC16LF1787T-I/MV)
- Low-voltage 1.8-3.6 V VDD maximizes battery life vs 5 V variant (vsPIC16F1789-I/ML)
Catatan Desain
Estimated: The PIC16LF1789T-I/ML with VDD=3.3 V, CPU active at 32 MHz, draws approximately 7 mA; in Sleep mode it drops below 50 nA per the Microchip datasheet. Place a 100 nF decoupling capacitor within 2 mm of each VDD pin (44-QFN has 4 VDD/VSS pairs) and a bulk 4.7 uF tantalum or ceramic capacitor near the VDD pin farthest from the regulator. Connect the central exposed thermal pad to a continuous ground copper pour with at least 8 thermal vias to a ground plane for optimal thermal dissipation during sustained CPU activity.
Route the ICSP lines (RB6/ICSPCLK, RB7/ICSPDAT) to a programming header or test pad accessible from the board edge, with 4.7 kohm pull-ups on both lines if used as digital I/O in production. Place the 32.768 kHz low-power crystal (if used) within 5 mm of SOSCO/SOSCI pins with a guard ring tied to ground to minimize noise coupling into the ADC. Avoid routing high-current motor traces directly under the QFN body to prevent switching noise from coupling into analog inputs.
Do not assume the central exposed pad is electrically isolated - it MUST be soldered to the ground plane for both thermal dissipation and electrical reference. The 'T' suffix in PIC16LF1789T-I/ML indicates Tape-and-Reel packaging, not a temperature grade; the actual temp grade is in the 'I' suffix (-40C to +85C). Watch the configuration word bits for LVP (low-voltage programming) enable - if disabled, the ICSP lines behave as regular PORTB I/O. Verify the configuration word matches the project's needs before locking.
The PIC16LF1789T-I/ML's 12-bit ADC achieves 1 LSB accuracy only with proper analog layout. Use a separate analog ground (AGND) connected to the main ground at a single point near the MCU, and route analog and digital signals on different layers or with substantial ground isolation. Add an RC filter (100 ohm + 100 nF) on noisy analog inputs, and use the on-chip op-amps as unity-gain buffers to drive high-impedance analog signals into the ADC. Enable the ADC's acquisition time to at least 16 TAD for 12-bit accuracy.
Informasi Konformitas
RoHS and REACH compliance per Microchip product page. Lead-free (Pb-free) reflow process compatible per JEDEC J-STD-020 MSL-3 classification. Not AEC-Q100 qualified - choose PIC16LF1789-E/ML (extended temp -40C to +125C) or automotive-graded PIC16F1789T-I/ML for harsh environments.
