PIC16LF1778T-I/SS - 8-bit 32MHz 28KB Flash MCU 28-SSOP | Microchip
N.º da peça: PIC16LF1778T-I/SS ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.32 | $3,32 |
| 10 | $2.94 | $29,40 |
| 100 | $2.46 | $246,00 |
| 500 | $2.05 | $1.025,00 |
| 1.000 | $1.78 | $1.780,00 |
PIC16LF1778T-I/SS Visão geral
What is a PIC16F/LF microcontroller? The PIC16F is Microchip's mid-range 8-bit RISC MCU family that pairs a compact Harvard architecture with a rich peripheral set, and the LF subfamily is the low-voltage variant optimized for battery and energy-harvesting designs. Within the broader microcontroller hierarchy, the PIC16LF1778 belongs to the PIC16F177x generation that adds on-chip op-amps, comparators, 10-bit DACs, 10/16-bit PWMs and Configurable Logic Cells (CLCs) - features normally found only on larger or external parts.
Key features include 28KB Flash, 2KB RAM, a 10-bit ADC with up to 24 channels, three 10-bit DACs, four operational amplifiers, six high-speed comparators, four Configurable Logic Cells, Peripheral Pin Select (PPS) for flexible signal routing, and Zero-Cross Detection. The device also integrates three 16-bit timers, ten 10-bit PWMs and four 16-bit PWMs, plus EUSART, SPI, and I2C for serial connectivity, and 100mA capable I/O pins for direct LED/mosfet drive.
Architecturally, the PIC16LF1778T-I/SS uses an enhanced mid-range 8-bit core with a hardware multiplier, a 14-bit instruction word, and an instruction cache that sustains close-to-1-MIPS-per-MHz throughput. PPS remaps most digital peripherals to nearly any I/O pin, simplifying PCB layout in dense mixed-signal designs, while CLCs let designers build combinational/sequential logic on-chip without glue parts.
Typical applications include LED lighting and color-mixing drivers, digital power conversion and SMPS control loops, battery chargers, BLDC and stepper motor control, sensor signal conditioning, and general-purpose industrial/IoT nodes where on-chip analog reduces BOM cost.
When designing with this part, plan the analog pin budget against PCB layout (the on-chip op-amps need clean ground and short traces), enable PPS early in firmware to lock pin assignments, and watch the 32MHz Fosc limit when selecting PLL or external oscillator modes.
This page synthesizes distributor pricing, drop-in PIC16 alternatives, and practical peripheral-mapping guidance not always found in the manufacturer datasheet itself.
Alternativas drop-in para PIC16LF1778T-I/SS — 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 PIC16LF1778T-I/SS (mesmo formato e footprint) — diferindo em I/O Pins, Operating Temperature, Package, ADC, Comparators.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16LF1778-I/SS
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16LF1778-E/SS
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16LF1777-I/SS
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16LF1776-I/SS
✅ Drop-In✓ Em estoque
$1.45 / unidade
Ver ficha técnica →PIC16LF1769-I/SS
✅ Drop-In✓ Em estoque
$1.38 / unidade
Ver ficha técnica →PIC16LF1768-I/SS
✅ Drop-In✓ Em estoque
$0.86 / unidade
Ver ficha técnica →PIC16LF1778T-I/SS Classificações máximas e características elétricas
| Core | PIC 8-bit enhanced mid-range |
| Instruction Set Architecture | 8-bit RISC, 14-bit instruction word |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data RAM | 2 KB |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| ADC | 10-bit, up to 24 channels |
| DAC | 3 x 10-bit DAC |
| Operational Amplifiers | 4 on-chip op-amps |
| Comparators | 6 high-speed comparators |
| Configurable Logic Cells (CLC) | 4 |
| PWM Modules | 10 x 10-bit PWM + 4 x 16-bit PWM |
| Timers | 3 x 16-bit timers |
| Communication | EUSART, SPI, I2C |
| I/O Pins | Up to 25 (100 mA high-current capable) |
| Zero-Cross Detection | Yes |
| Peripheral Pin Select (PPS) | Yes |
| XLP (eXtreme Low Power) | Yes |
| Temperatura de operação | -40C to +85C (Industrial, 'I') |
| Encapsulamento | 28-pin SSOP (5.30 mm body) |
| Tipo de montagem | Surface Mount |
| Nível MSL | 1 |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Configuração de pinos do PIC16LF1778T-I/SS
| Pino 1 | RA1/AN17/C1IN1-/C2IN1-/DAC1REF+ — Bidirectional I/O / AN17 analog input / comparator input / DAC1 reference |
| Pino 2 | RA2/AN18/DAC2REF+/C2IN1+ — Bidirectional I/O / AN18 analog input / DAC2 reference / comparator input |
| Pino 3 | RA3/AN19/VREF+/DAC3REF+ — Bidirectional I/O / AN19 analog input / positive voltage reference / DAC3 reference |
| Pino 4 | RA4/AN20/T0CKI/C1IN3- — Bidirectional I/O / AN20 / Timer0 clock input / comparator input |
| Pino 5 | RA5/AN21/CCP5/C2IN3- — Bidirectional I/O / AN21 / CCP5 PWM / comparator input |
| Pino 6 | RE3/MCLR — Input only / Master Clear (reset, active low) |
| Pino 7 | VDD — Positive supply voltage (1.8V-3.6V) |
| Pino 8 | VSS — Ground reference |
| Pino 9 | RB7/ICSPDAT/AN27 — Bidirectional I/O / ICSP data / AN27 analog input |
| Pino 10 | RB6/ICSPCLK/AN26 — Bidirectional I/O / ICSP clock / AN26 analog input |
| Pino 11 | RB5/AN25/C3IN1- — Bidirectional I/O / AN25 / comparator input |
| Pino 12 | RB4/AN24/C3IN1+ — Bidirectional I/O / AN24 / comparator input |
| Pino 13 | RB3/AN23/C1IN2-/C2IN2- — Bidirectional I/O / AN23 / comparator input |
| Pino 14 | RB2/AN22/C1IN2+/C2IN2+ — Bidirectional I/O / AN22 / comparator input |
| Pino 15 | RB1/AN10/C1IN3+/C2IN3+/C3IN2- — Bidirectional I/O / AN10 / comparator input |
| Pino 16 | RB0/AN12/C1OUT/C2OUT/ZCD — Bidirectional I/O / AN12 / comparator output / zero-cross detect |
| Pino 17 | VDDCORE/VCAP — Internal core voltage decoupling pin (connect 1uF-10uF to VSS) |
| Pino 18 | RC7/AN9 — Bidirectional I/O / AN9 analog input |
| Pino 19 | RC6/AN8/CCP9/P9A — Bidirectional I/O / AN8 / CCP9 PWM output |
| Pino 20 | RC5/AN7/CCP8/P8A — Bidirectional I/O / AN7 / CCP8 PWM output |
| Pino 21 | RC4/AN6/CCP10/P10A — Bidirectional I/O / AN6 / CCP10 PWM output |
| Pino 22 | RC3/AN5/SCL/MD3IN — Bidirectional I/O / AN5 / I2C clock / DSM input |
| Pino 23 | RC2/AN4/SDA/MD3OUT — Bidirectional I/O / AN4 / I2C data / DSM output |
| Pino 24 | RC1/AN3/CCP7/P7A/MD1IN — Bidirectional I/O / AN3 / CCP7 PWM / DSM input |
| Pino 25 | RC0/AN2/CCP6/P6A/MD1OUT — Bidirectional I/O / AN2 / CCP6 PWM / DSM output |
| Pino 26 | RA7/AN13/C3OUT — Bidirectional I/O / AN13 / comparator 3 output |
| Pino 27 | RA6/AN14/C1OUT/C2OUT — Bidirectional I/O / AN14 / comparator outputs |
| Pino 28 | RA0/AN16/C3IN0-/ZCD — Bidirectional I/O / AN16 / comparator input / zero-cross detect |
Aplicações típicas
PIC16LF1778T-I/SS é adequado para 7 aplicaçãos: LED Lighting and Color-Mixing Drivers, Digital Power Conversion and SMPS Control, BLDC and Stepper Motor Control, Battery Charging and Power Management, Sensor Signal Conditioning and IoT Edge Nodes, Industrial Control and HMI Front Ends, General-Purpose Embedded Control and Prototyping.
LED Lighting and Color-Mixing Drivers
The PIC16LF1778T-I/SS is a strong fit for multi-channel LED lighting and color-mixing drivers because it integrates fourteen PWM outputs (ten 10-bit plus four 16-bit) and three 10-bit DACs in a single SSOP-28 package. The four 16-bit PWMs support center-aligned, complementary modes with hardware dead-band, enabling high-resolution dimming and accurate hue control for RGBW or tunable-white fixtures. Engineers can use the on-chip op-amps to sense LED current and the comparators to detect open/short conditions, removing external driver circuitry. Peripheral Pin Select (PPS) lets designers remap PWM and communication pins to ease single-layer PCB layout in space-constrained bulb and strip form factors.
Recomendado
Digital Power Conversion and SMPS Control
For switched-mode power supply control loops the PIC16LF1778T-I/SS offers the right combination of analog and digital peripherals - four high-speed comparators for peak-current-mode feedback, three 10-bit DACs for reference generation, four 16-bit PWMs with programmable dead-band for synchronous rectification, and a 10-bit ADC with up to 24 channels for voltage and current telemetry. The enhanced mid-range 8-bit core runs at 32 MHz delivering 8 MIPS, sufficient for digital compensator loops in sub-500 kHz converters. The 28-SSOP package with exposed thermal copper supports moderate power designs, and PPS allows re-routing of feedback signals to optimize PCB layout for clean analog/digital partitioning.
Recomendado
BLDC and Stepper Motor Control
The PIC16LF1778T-I/SS is well suited to brushless DC and stepper motor control because it integrates four 16-bit PWMs with hardware dead-band, six high-speed comparators for back-EMF zero-cross detection, four on-chip op-amps for current-sense amplification, and dedicated Zero-Cross Detection hardware. The 32 MHz / 8 MIPS core executes trapezoidal or sensorless-FOC commutation algorithms in real time without offloading to a coprocessor. PPS lets designers separate noisy switching nodes from sensitive analog traces by remapping peripheral pins, while the 28-SSOP footprint is small enough for inline motor housings or handheld tool form factors.
Recomendado
Battery Charging and Power Management
Battery-charging and energy-management designs benefit from the PIC16LF1778T-I/SS because of its LF 1.8V to 3.6V supply range, on-chip op-amps for current and voltage sensing, and 10-bit ADC with multiple channels for pack telemetry. The three 10-bit DACs can be used as programmable current/voltage references, while the CLCs let designers build charge-state-machine logic without external gates. XLP low-power Sleep modes help achieve nanoampere quiescent current in standby, extending shelf life of battery-backed products. The SSOP-28 industrial temperature grade suits outdoor and automotive-adjacent charging stations.
Recomendado
Sensor Signal Conditioning and IoT Edge Nodes
For sensor signal conditioning and IoT edge nodes, the PIC16LF1778T-I/SS combines four on-chip op-amps, six comparators, a 10-bit ADC and PPS in a compact SSOP-28 footprint. Designers can build complete analog front-ends (thermocouple amplification, Wheatstone bridge excitation, threshold detection) entirely on-chip, lowering BOM cost and PCB area. The enhanced mid-range core supports UART, SPI and I2C for sensor or radio-module communication, and XLP Sleep modes keep quiescent current in the nanoampere range for battery-years-of-life operation. EUSART with LIN support simplifies integration into automotive or industrial sensor networks.
Recomendado
Industrial Control and HMI Front Ends
The PIC16LF1778T-I/SS fits industrial control and human-machine-interface front-end designs because of its 32 MHz core, generous 28KB Flash for protocol stacks, multiple communication peripherals (EUSART/SPI/I2C) and 25 high-current (100 mA) I/O pins capable of directly driving relays, optocouplers or small displays. Industrial -40C to +85C temperature grade and SSOP-28 footprint support factory-floor mounting. PPS allows pin-function reassignment late in the design cycle, easing schematic reuse across product variants. On-chip comparators and op-amps handle analog I/O without external amplifiers.
Recomendado
General-Purpose Embedded Control and Prototyping
As a general-purpose embedded controller, the PIC16LF1778T-I/SS gives engineers a 32 MHz / 8 MIPS 8-bit core, 28KB Flash, 2KB RAM and the full PIC16 enhanced mid-range peripheral mix in a hobbyist-friendly 28-SSOP package. PPS dramatically simplifies breadboard wiring because peripherals can be remapped to almost any I/O, while CLCs let designers experiment with on-chip logic without glue parts. The PIC ecosystem (MPLAB X IDE, XC8 compiler, Curiosity development boards) plus extensive application notes make this part a productive platform for learning and rapid prototyping of mixed-signal designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16LF1778T-I/SS — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16LF1778-I/SS | PIC16LF1778-E/SS | PIC16LF1777-I/SS | PIC16LF1776-I/SS | PIC16LF1769-I/SS | PIC16LF1768-I/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP | 28-SSOP | 28-SSOP | 28-SSOP | 28-SSOP | 28-SSOP |
| Flash | 28 KB | 28 KB | 28 KB | 14 KB | 8 KB | 14 KB | 8 KB |
| RAM | 2 KB | 2 KB | 2 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V |
| On-chip Op-Amps | 4 | 4 | 4 | 3 | 3 | 3 | 3 |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
| Approx. Qty-1 Price (USD) | 3.32 | 2.90 - 3.20 | 3.40 - 3.80 | 2.70 - 3.00 | 2.50 - 2.80 | 2.60 - 2.90 | 2.40 - 2.70 |
Principais diferenciais
- Largest Flash/RAM within PIC16LF177x 28-SSOP family (vs PIC16LF1777-I/SS)
- Industrial (-40C to +85C) versus extended-grade price advantage (vs PIC16LF1778-E/SS)
- Four 16-bit PWMs versus three on smaller PIC16LF176x devices (vs PIC16LF1768-I/SS)
Notas de projeto
Estimated: The PIC16LF1778T-I/SS draws a typical IDD of 7 mA at 32 MHz / 3.3V (per Microchip PIC16(L)F1778 typical characteristics) and Sleep current down to the nanoampere range using XLP. For battery designs, use the internal 16 MHz HFINTOSC with Doze mode to scale throughput versus current; verify with the actual Microchip electrical-characteristics table for your VDD/Fosc combination, and add a 100 nF + 1 uF bulk decoupling pair as close to the VDD pin as possible. The VCAP/VDDCORE pin (pin 17) requires a 1 uF to 10 uF low-ESR ceramic to VSS for internal regulator stability.
Because the PIC16LF1778T-I/SS combines analog and digital peripherals on the same die, partition the PCB so noisy switching traces (PWM outputs, comms lines) are kept away from sensitive analog traces (op-amp inverting inputs, ADC channels, VREF+). Use a single ground plane tied to VSS at one point near the MCU, and place the ICSP header (RB6/RB7) so the debugger cable does not cross analog regions. Per Microchip AN248, decoupling must use 100 nF X7R on each VDD pin within 5 mm of the package, with a 10 uF bulk capacitor on the supply rail.
Common pitfalls: (1) Forgetting that VCAP/VDDCORE pin 17 requires its own decoupling capacitor - leaving it floating causes erratic operation or device resets. (2) Over-driving PWM pins beyond their 100 mA sink capability without proper gate-resistor sizing, leading to EOS damage. (3) Using the LF (1.8V-3.6V) variant in 5V systems where I/O VIH is not met - choose PIC16F1778 instead for 5V rails. (4) Neglecting MCLR pull-up requirements during in-circuit programming - tie MCLR to VDD via 10 kohm with the ICSP header correctly wired to avoid programming failures.
For ADC accuracy, drive AVDD with a clean 3.3V rail (separate from digital VDD if possible), place a 10 uH ferrite bead between digital and analog supplies, and add 100 nF + 10 uF decoupling on AVDD. Set ADC acquisition time based on source impedance - Microchip recommends at least 1 us for >10 kohm sources. Use the on-chip op-amps in unity-gain buffer mode to drive high-impedance analog inputs before the ADC, and route analog traces with a ground-guard ring to reduce digital crosstalk.
Informações de conformidade
RoHS and REACH compliance per Microchip product declaration. Lead-free / halogen-free per Microchip material composition disclosure. Not AEC-Q100 qualified - choose PIC16F variant or PIC16LF1778-E/SS for higher temperature grades if automotive qualification is required.
