PIC16F1779-I/PT - 8-Bit 32MHz 28KB Flash MCU | Microchip
部品番号: PIC16F1779-I/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.65 | $3.65 |
| 10 | $3.29 | $32.90 |
| 100 | $2.78 | $278.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.18 | $2,180.00 |
| 3,000 | $1.92 | $5,760.00 |
PIC16F1779-I/PT 概要
A microcontroller (MCU) is a single-chip computer containing a CPU, program memory (Flash), data memory (RAM), and integrated peripherals. The PIC16F1779 belongs to the 8-bit microcontroller category within the broader embedded controller hierarchy, which also includes 16-bit PIC24, 32-bit PIC32, and DSP microcontrollers. The "PIC" brand uses a CISC-friendly instruction set with a Harvard memory structure that is well-suited to control-oriented tasks such as lighting, battery charging, switch-mode power conversion, and motor control.
Key features include 28 KB Flash, 2 KB RAM, 256 bytes EEPROM, 36 general-purpose I/O pins, four 16-bit timers, two 10-bit ADC modules, two 8-bit DACs, two comparators, two operational amplifiers, four 10-bit PWMs, four 16-bit PWMs, plus EUSART/SPI/I2C. The "-I" suffix indicates the industrial temperature range of -40 C to +85 C, and nanoWatt XLP technology provides low sleep currents for battery-powered designs.
Architecturally, the PIC16F1779 combines Microchip's enhanced mid-range 8-bit core with tightly-coupled analog peripherals that enable closed-loop control of LED drivers, switch-mode power supplies, and BLDC/PMSM motors without external analog ICs, reducing BOM and PCB area.
Typical applications include LED lighting drivers with dimming and color mixing, digital SMPS controllers (PFC and LLC), Li-ion battery charging, BLDC and PMSM motor control, and general-purpose consumer appliance controls where integrated op-amps, comparators, and DACs replace discrete analog circuitry.
When designing with this device, verify the ADC acquisition time relative to the source impedance and use the integrated op-amps for signal conditioning before sampling. Use Microchip's MPLAB X IDE with the XC8 compiler; the PIC16F1779 supports in-circuit serial programming (ICSP) and in-circuit debugging (ICD) via two dedicated pins.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing an AEO-optimized engineering reference for PIC16F1779-I/PT selection and procurement.
ドロップイン代替品: PIC16F1779-I/PT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC16F1779-I/PT （同一形状・フットプリント） — 相違点: Family, Operating Temperature, Mounting Type, Package, ADC.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16F1779-I/MV
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F1776-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F1789-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F1778-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F1769-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F1709-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F1779-I/PT 最大定格＆電気的特性
| Core Architecture | PIC 8-bit enhanced mid-range |
| Family | PIC16F177x (XLP) |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data Memory (RAM) | 2 KB |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, 2 modules |
| DAC | 8-bit, 2 modules |
| Comparators | 2 |
| Operational Amplifiers | 2 |
| Timers | 4 x 16-bit |
| PWM | 4 x 10-bit + 4 x 16-bit |
| Communication | EUSART, SPI, I2C |
| パッケージ | 44-pin TQFP (10x10 mm) |
| 動作温度 | -40 C to +85 C (industrial, -I suffix) |
| Low-Power Technology | nanoWatt XLP |
| Programming/Debug | ICSP + ICD via 2 dedicated pins |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
PIC16F1779-I/PT ピン構成
| ピン 1 | RE3/MCLR — Master Clear (reset) input or digital input; weak pull-up enabled by configuration |
| ピン 2 | RA0 — PORTA bit 0; analog/digital I/O |
| ピン 3 | RA1 — PORTA bit 1; analog/digital I/O |
| ピン 4 | RA2 — PORTA bit 2; analog/digital I/O |
| ピン 5 | RA3 — PORTA bit 3; analog/digital I/O |
| ピン 6 | RA4 — PORTA bit 4; analog/digital I/O |
| ピン 7 | RA5 — PORTA bit 5; analog/digital I/O |
| ピン 8 | RE0 — PORTE bit 0; analog/digital I/O |
| ピン 9 | RE1 — PORTE bit 1; analog/digital I/O |
| ピン 10 | RE2 — PORTE bit 2; analog/digital I/O |
| ピン 11 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| ピン 12 | VSS — Ground reference |
| ピン 13 | RA7/OSC2 — PORTA bit 7 or oscillator output |
| ピン 14 | RA6/OSC1 — PORTA bit 6 or oscillator input |
| ピン 15 | RC0 — PORTC bit 0; digital I/O |
| ピン 16 | RC1 — PORTC bit 1; digital I/O |
| ピン 17 | RC2 — PORTC bit 2; digital I/O |
| ピン 18 | RC3 — PORTC bit 3; digital I/O |
| ピン 19 | RD0 — PORTD bit 0; digital I/O |
| ピン 20 | RD1 — PORTD bit 1; digital I/O |
| ピン 21 | RD2 — PORTD bit 2; digital I/O |
| ピン 22 | RD3 — PORTD bit 3; digital I/O |
| ピン 23 | RC4 — PORTC bit 4; digital I/O |
| ピン 24 | RC5 — PORTC bit 5; digital I/O |
| ピン 25 | RC6 — PORTC bit 6; digital I/O |
| ピン 26 | RC7 — PORTC bit 7; digital I/O |
| ピン 27 | RD4 — PORTD bit 4; digital I/O |
| ピン 28 | RD5 — PORTD bit 5; digital I/O |
| ピン 29 | RD6 — PORTD bit 6; digital I/O |
| ピン 30 | RD7 — PORTD bit 7; digital I/O |
| ピン 31 | VSS — Ground reference (second VSS pin) |
| ピン 32 | VDD — Positive supply voltage (second VDD pin) |
| ピン 33 | RB0 — PORTB bit 0; digital I/O with interrupt-on-change |
| ピン 34 | RB1 — PORTB bit 1; digital I/O with interrupt-on-change |
| ピン 35 | RB2 — PORTB bit 2; digital I/O with interrupt-on-change |
| ピン 36 | RB3 — PORTB bit 3; digital I/O with interrupt-on-change |
| ピン 37 | RB4 — PORTB bit 4; digital I/O with interrupt-on-change |
| ピン 38 | RB5 — PORTB bit 5; digital I/O with interrupt-on-change |
| ピン 39 | RB6/ICSPCLK — PORTB bit 6 or ICSP clock programming pin |
| ピン 40 | RB7/ICSPDAT — PORTB bit 7 or ICSP data programming pin |
| ピン 41 | RB8 — PORTB bit 8; digital I/O |
| ピン 42 | RB9 — PORTB bit 9; digital I/O |
| ピン 43 | RB10 — PORTB bit 10; digital I/O |
| ピン 44 | RB11 — PORTB bit 11; digital I/O |
主な用途
PIC16F1779-I/PT の用途: 7 件s: Multi-String LED Lighting Driver, Switch-Mode Power Supply (PFC + LLC) Controller, Brushless DC Motor (BLDC/PMSM) Controller, Li-Ion Battery Charger (Multi-Cell), General-Purpose Sensor Hub / Home Appliance, Industrial Control Panel / HMI Front-End, Automotive Lighting and HVAC Controller.
Multi-String LED Lighting Driver
The PIC16F1779-I/PT is purpose-built for high-channel-count LED color-mixing drivers. Its 36 I/O pins drive multiple LED strings directly via MOSFET gates using the four 16-bit PWM channels for smooth dimming and the four 10-bit PWMs for color-balance loops. The integrated 10-bit ADCs close the loop on photo-sensor or thermistor feedback, while the on-chip op-amps condition current-sense signals ahead of the ADC with 4-6 MHz bandwidth, eliminating the need for external instrumentation amplifiers. Operating from 2.3 V to 5.5 V, it survives supply transients on 24 V commercial-lighting buses when paired with a pre-regulator, and the 44-pin TQFP (10x10 mm) package gives plenty of GPIOs for DMX-512 or DALI interface glue logic.
おすすめ
Switch-Mode Power Supply (PFC + LLC) Controller
The PIC16F1779-I/PT is widely used in digital PFC and LLC controllers for switch-mode power supplies up to a few hundred watts. Two 10-bit ADC channels sample the boost or LLC tank voltage and current at the same instant, while the dual on-chip op-amps perform two-pole analog filtering plus level shifting directly into the ADC inputs. The four 16-bit PWMs deliver nanosecond-resolution timing for synchronous-rectifier dead-band generation, allowing a single MCU to handle both PFC and LLC control with sub-1% line-load regulation. The 28 KB Flash supports the soft-start, valley switching, and frequency-modulation firmware that traditional analog controllers cannot match.
おすすめ
Brushless DC Motor (BLDC/PMSM) Controller
Sensorless BLDC and PMSM motor drives leverage the PIC16F1779-I/PT's Intelligent Analog peripherals: the comparators detect back-EMF zero-cross events with sub-100 ns propagation delay, eliminating external BEMF-sensing chips. The 16-bit timers feed the auto-shutdown timer for hardware commutation, while the four 16-bit PWM channels drive the three half-bridges plus a brake channel with programmable dead-band. The 32 MHz CPU executes space-vector or trapezoidal commutation in tens of microseconds per electrical cycle, leaving room for UART diagnostics. Optional Hall-sensor inputs route through the on-chip op-amps for digital filtering, supported by 32 MHz instruction cycles and 2 KB RAM.
おすすめ
Li-Ion Battery Charger (Multi-Cell)
Multi-cell Li-ion battery chargers from 2S to 4S use the PIC16F1779-I/PT for CC/CV control loops, cell balancing, and SMBus or I2C host reporting. The 10-bit ADC monitors pack voltage and per-cell voltages via a resistor divider while the dual 8-bit DAC sets the charger reference, and the integrated op-amps buffer high-impedance cell-tap signals. EUSART and I2C peripherals connect to a fuel-gauge IC and SMBus host; the 256-byte EEPROM stores charge-profile parameters. The 2.3 V to 5.5 V VDD range and industrial -40 C to +85 C temperature window cover USB-C PD applications.
おすすめ
General-Purpose Sensor Hub / Home Appliance
Consumer appliances and IoT sensor hubs benefit from the PIC16F1779-I/PT's ADC, op-amp, comparator, and EUSART/SPI/I2C combo to interface with multiple sensors while staying within tight BOM budgets. The on-chip op-amps condition thermocouple, strain-gauge, or capacitive-touch signals before they reach the 10-bit ADC, and the comparator-based Core Independent Peripherals wake the MCU from sleep on user button-press without CPU overhead. Operating at 32 MHz with nanoWatt XLP low-power modes, the part sustains years of battery life on coin cells. The 28 KB Flash and 2 KB RAM host sensor-fusion firmware, BLE provisioning logic, and OTA bootloaders.
おすすめ
Industrial Control Panel / HMI Front-End
Industrial HMI panels and operator-control boards use the PIC16F1779-I/PT for key-scan matrix input, LED multiplexing, and isolated UART bridge to a main PLC. Multiple EUSART/SPI/I2C peripherals drive character LCDs, segment drivers, and isolated RS-485 transceivers, while the 36 I/O pins scan 4 x 4 key matrices with diode isolation. The on-chip PWM delivers variable backlight brightness, and the nanoWatt XLP mode keeps standby power below 10 uA when the panel is idle. Industrial -40 C to +85 C temperature tolerance survives factory floor conditions.
おすすめ
Automotive Lighting and HVAC Controller
The automotive-grade PIC16F1779 variant (PIC16F1779-E/PT) is selected for body-electronics modules such as adaptive lighting controllers and HVAC blend-door drivers. Its 36 I/O pins run stepper motors and matrix-LED drivers directly through PWM and timer peripherals, while the op-amps implement closed-loop current control without external circuitry. The 32 MHz CPU executes control law updates per PWM cycle, and the 2.3 V to 5.5 V VDD range tolerates automotive cranking transients of 4 V to 18 V. Designers pair it with Microchip LIN or CAN SBCs for in-vehicle networking.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC16F1779-I/PT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC16F1779-I/MV | PIC16F1776-I/PT | PIC16F1789-I/PT | PIC16F1778-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (10x10 mm) | UQFN-44 | TQFP-44 (10x10 mm) | TQFP-44 (10x10 mm) | TQFP-44 (10x10 mm) |
| Core | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range |
| Max CPU Frequency | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) |
| Program Memory (Flash) | 28 KB | 28 KB | 16 KB | 28 KB | 28 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| I/O Pins | 36 | 36 | 36 | 36 | 28 |
| Operating 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 | 2.3 V to 5.5 V |
| Temperature Range | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) |
| Integrated Op-Amps | Yes (2) | Yes (2) | Yes (2) | Yes (limited) | Yes (2) |
主な差別化要因
- Largest Flash in the PIC16F177x 44-pin TQFP family （vs PIC16F1776-I/PT)
- Two integrated operational amplifiers plus two comparators （vs PIC16F1709-I/PT)
- Higher I/O count than the -1778 variant in identical TQFP-44 （vs PIC16F1778-I/PT)
- nanoWatt XLP sleep current below typical PIC16 baseline （vs Generic 8-bit PIC16 without XLP)
設計ノート
Place a 100 nF ceramic decoupling capacitor as close as practical to each VDD pin (pins 11 and 32) and a single 10 uF bulk capacitor within 25 mm. For two-layer FR4 boards the inductive ground returns of the oscillator traces should be sized to keep total ground impedance below 0.5 ohm at 32 MHz to avoid spurious resets. Estimated: combined VDD supply current at 32 MHz active mode with all peripherals enabled is typically 4-7 mA, so a 100 mA LDO such as MCP1700 is sufficient.
Route the 44-pin TQFP (10x10 mm) traces with controlled 50 ohm impedance for high-speed signals such as the 16-bit PWM outputs and EUSART lines if long traces (over 25 mm) are unavoidable. Add ground stitching vias on 5 mm centers around the ICSP/ICD pinout (pins 39/40) to maintain signal integrity for in-circuit debugging. Keep analog signal traces (ADC, op-amp inputs) short and place analog-ground island on the top layer, stitching to the digital ground at a single point.
Do not apply VDD above 5.5 V even briefly; the PIC16F1779-I/PT does not have over-voltage protection and ESD clamping alone will not survive a stress pulse of 7 V or more. The MCLR pin (pin 1) requires a 10 kohm pull-up to VDD if not used as digital I/O - leaving it floating can cause sporadic resets. Estimated: total Flash endurance is rated at 100K erase/write cycles minimum per Microchip datasheet; use EEPROM for parameters that change frequently rather than burning Flash.
When using the on-chip op-amps with the ADC, place a series resistor of 100 ohm + 1 nF capacitor at each op-amp output to filter ADC sampling charge-injection glitches. The Microchip PIC16F177x datasheet recommends an acquisition time of at least 2.5 us at 10-bit mode with a 10 kohm source impedance. Estimated: enabling CTMU for touch-sensing adds 200-400 us per scan cycle - budget accordingly in interrupt-driven designs with 32 MHz / 8 MIPS throughput.
コンプライアンス情報
RoHS compliant and lead-free per Microchip product page (2026-10-09). The standard -I/PT industrial variant is not AEC-Q100 qualified; the -E/PT extended-temperature and -VAO/VAO automotive variants exist within the same family for automotive use cases.