PIC16F1776T-I/MX - 8-Bit MCU 32MHz 14KB Flash 28-UQFN
部品番号: PIC16F1776T-I/MX ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
PIC16F1776T-I/MX 概要
A PIC microcontroller is an 8-bit RISC-based MCU built on Microchip's Harvard architecture, commonly used in embedded control for its deterministic instruction timing, low power draw, and broad peripheral integration. PIC MCUs sit at the entry-level of the embedded hierarchy: microcontroller -> embedded processor -> semiconductor. The PIC16F1776 specifically adds CIP (Core Independent Peripherals) that operate without CPU intervention, enabling efficient lighting, SMPS, and motor control loops.
Key differentiating features include four 10-bit PWMs with independent timing, four programmable gain amplifiers (PGAs), four operational amplifiers, four 10-bit DACs, three 5-bit DACs, four 16-bit timers, and high-resolution configurable logic cells. These peripherals enable closed-loop control of LEDs, motors, and power supplies without burdening the CPU. The 28-UQFN exposed-pad package (6x6 mm) provides compact board footprint with improved thermal dissipation for higher-power applications.
The PIC16F1776 uses an enhanced mid-range 8-bit core with 49 instructions and 16-level hardware stack. Internal 32 MHz oscillator, 256 bytes of EEPROM, and an integrated temperature indicator simplify BOM cost. Peripherals communicate via PPS (Peripheral Pin Select), allowing flexible pin assignments. The combination of internal peripherals makes this MCU suitable for complex mixed-signal control in a small package.
Typical applications include LED lighting drivers, switched-mode power supplies, battery chargers, BLDC/PMSM motor control, and general-purpose embedded systems. The high level of analog integration reduces external component count for closed-loop power-conversion designs.
When designing with this device, ensure adequate PCB copper area beneath the exposed pad to meet thermal and electrical grounding requirements. Decoupling capacitors should be placed close to VDD/VSS pairs. Configure PPS registers to assign peripheral functions to specific I/O pins as required by the board layout.
ドロップイン代替品: PIC16F1776T-I/MX — 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: PIC16F1776T-I/MX （同一形状・フットプリント） — 相違点: Package, ADC, Core Architecture, DAC, Operating Temperature.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16F1776-I/SP
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.78 / 個
データシートを見る →PIC16F1776-E/SP
✅ ドロップイン✓ 在庫あり
$2.2 / 個
データシートを見る →PIC16F1776-E/SO
✅ ドロップイン✓ 在庫あり
$1.82 / 個
データシートを見る →PIC16F15356T-I/MX
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PIC16F15356-E/MX
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.21 / 個
データシートを見る →PIC16F1769T-I/ML
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PIC16F1768T-I/ML
✅ ドロップイン✓ 在庫あり
$0.99 / 個
データシートを見る →PIC16F1776T-I/MX 最大定格＆電気的特性
| Core Architecture | PIC (Enhanced Mid-Range 8-bit) |
| Program Memory | 14 KB Flash (8K x 14 words) |
| Data Memory (RAM) | 1 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| ADC | 10-bit |
| Operating Voltage Range | 2.3 V to 5.5 V (F-version) |
| Number of I/O Pins | 25 (approx.) |
| PWM Channels | 4 x 10-bit PWM with independent timing |
| Operational Amplifiers | 4 on-chip op-amps |
| Programmable Gain Amplifiers | 4 PGAs |
| DAC | 4 x 10-bit DAC + 3 x 5-bit DAC |
| Timers | 4 x 16-bit timers |
| パッケージ | 28-pin UQFN with exposed pad (6x6 mm) |
| 動作温度範囲 | -40C to +85C (Industrial) |
| Low-Power Feature | XLP (eXtreme Low Power) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
PIC16F1776T-I/MX ピン構成
| ピン 1 | RA5 — GPIO RA5 / PWM3 / DAC4OUT |
| ピン 2 | RA4 — GPIO RA4 / PWM2 / DAC3OUT |
| ピン 3 | RA3 — GPIO RA3 / MCLR/VPP |
| ピン 4 | RA2 — GPIO RA2 / AN2 / DAC2OUT |
| ピン 5 | RA1 — GPIO RA1 / AN1 / OPA1IN+ / DAC1OUT |
| ピン 6 | RA0 — GPIO RA0 / AN0 / OPA1IN- |
| ピン 7 | VSS — Ground reference |
| ピン 8 | RA7 — GPIO RA7 / OSC1 / CLKIN |
| ピン 9 | RA6 — GPIO RA6 / OSC2 / CLKOUT |
| ピン 10 | RC0 — GPIO RC0 / AN4 / PWM4 |
| ピン 11 | RC1 — GPIO RC1 / AN5 / PWM3 |
| ピン 12 | RC2 — GPIO RC2 / AN6 / PWM2 |
| ピン 13 | RC3 — GPIO RC3 / AN7 / PWM1 |
| ピン 14 | RC4 — GPIO RC4 / AN8 |
| ピン 15 | RC5 — GPIO RC5 / AN9 |
| ピン 16 | RC6 — GPIO RC6 / AN10 / TX/CK |
| ピン 17 | RC7 — GPIO RC7 / AN11 / RX/DT |
| ピン 18 | VSS — Ground reference |
| ピン 19 | VDD — Positive supply voltage 2.3-5.5 V |
| ピン 20 | RB0 — GPIO RB0 / INT / IOC |
| ピン 21 | RB1 — GPIO RB1 / AN12 |
| ピン 22 | RB2 — GPIO RB2 / AN13 |
| ピン 23 | RB3 — GPIO RB3 / AN14 / OPA2IN- |
| ピン 24 | RB4 — GPIO RB4 / AN15 / OPA2IN+ |
| ピン 25 | RB5 — GPIO RB5 / AN16 / OPA3IN- |
| ピン 26 | RB6 — GPIO RB6 / ICSPCLK |
| ピン 27 | RB7 — GPIO RB7 / ICSPDAT |
| ピン 28 | VDD — Positive supply voltage 2.3-5.5 V |
主な用途
PIC16F1776T-I/MX の用途: 6 件s: LED Lighting Drivers, Switched-Mode Power Supplies, BLDC and PMSM Motor Control, Battery Charging Systems, General-Purpose Embedded Control, Sensor Signal Conditioning.
LED Lighting Drivers
The PIC16F1776T-I/MX drives multi-channel LED lighting systems with high-resolution dimming and color mixing. Its four 10-bit PWM channels with dead-band generators provide independent control of RGBW or warm-dim channels, while four on-chip op-amps and four PGAs enable closed-loop current feedback without external amplifiers. The 32 MHz CPU executes digital control loops fast enough to maintain flicker-free dimming down to 1 percent, and the 14 KB Flash stores lookup tables for logarithmic dimming curves. Combined with the compact 28-UQFN 6x6 mm package, this MCU fits inside E27 retrofit bulbs, downlights, and architectural fixtures where PCB area is constrained. Power dissipation under 100 mW at 5 V means no heatsink is required.
おすすめ
Switched-Mode Power Supplies
In SMPS applications, the PIC16F1776T-I/MX serves as the digital control core for peak current-mode or average current-mode converters. Four high-speed PWMs with programmable dead-band drive half-bridge and full-bridge topologies at switching frequencies up to 500 kHz. Four on-chip op-amps amplify current-sense signals from shunt resistors or current transformers, while four 10-bit DACs set reference thresholds for voltage and current loops. The 10-bit ADC samples output voltage at high rate for tight regulation. With 14 KB Flash, control algorithms including soft-start, slope compensation, and OVP/OCP protection fit comfortably. The compact 28-UQFN package suits dense AC-DC adapter and DC-DC converter layouts.
おすすめ
BLDC and PMSM Motor Control
The PIC16F1776T-I/MX drives brushless DC and permanent magnet synchronous motors in field-oriented control (FOC) or trapezoidal commutation schemes. Four complementary PWM pairs with dead-band insertion directly drive three-phase inverter legs, while four op-amps and four PGAs condition Hall-effect sensor or back-EMF signals. Three 5-bit DACs and four 10-bit DACs provide analog references for protection thresholds. The 32 MHz CPU completes Park/Clarke transforms and PI loops within microseconds, supporting rotor speeds up to several thousand RPM. The 28-UQFN exposed pad dissipates the moderate power dissipation of small motor control boards for fans, pumps, and small appliances.
おすすめ
Battery Charging Systems
In lithium-ion or lead-acid battery chargers, the PIC16F1776T-I/MX executes CC/CV (constant-current / constant-voltage) charging algorithms with multiple protection layers. Four 10-bit DACs set precise charge current and voltage references, while the 10-bit ADC monitors battery voltage, current, and temperature via the on-chip op-amps. The 14 KB Flash stores charging profiles for Li-ion, LiFePO4, NiMH, and SLA chemistries. The XLP low-power feature enables quiescent currents below 1 microamp in standby mode, critical for shelf-life. The 28-UQFN package fits compact charging cradles for handheld tools, e-bikes, and portable medical devices.
おすすめ
General-Purpose Embedded Control
For general embedded control tasks, the PIC16F1776T-I/MX delivers flexible I/O and rich peripherals in a small package. The 25 I/O pins drive keypads, LCD segments, sensors, and actuators, while PPS (Peripheral Pin Select) reassigns peripheral functions to different pins during PCB layout. Four 16-bit timers capture input signals or generate precise timing for valves, pumps, and indicators. With 32 MHz performance, 14 KB Flash, 1 KB RAM, and industrial -40C to +85C temperature range, the part fits industrial sensors, building automation nodes, smart thermostats, and appliance controls. The exposed pad package provides reliable thermal performance under moderate CPU loading.
おすすめ
Sensor Signal Conditioning
The PIC16F1776T-I/MX performs sensor signal conditioning for industrial measurement and IoT edge devices. Four on-chip op-amps amplify thermocouple, RTD, strain-gauge, or bridge-pressure signals, while four PGAs provide software-selectable gains from 1x to 32x. Four 10-bit DACs generate excitation voltages for bridge sensors. The 10-bit ADC digitizes conditioned signals for compensation algorithms (linearization, temperature compensation) running on the 32 MHz CPU. With XLP sleep modes below 1 microamp, battery-powered wireless sensor nodes can run for years. The compact 28-UQFN footprint fits inside sealed sensor housings for harsh-environment applications.
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: PIC16F1776T-I/MX — 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 | PIC16F1776-I/SP | PIC16F1776-E/SP | PIC16F1776-E/SO | PIC16F15356T-I/MX | PIC16F1769T-I/ML | PIC16F1768T-I/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | UQFN-28 (6x6 mm) | SPDIP-28 - thru-hole | SPDIP-28 - thru-hole | SOIC-28 - SMD wider | UQFN-28 - same | QFN-28 - same family | QFN-28 - same family |
| Flash Memory | 14 KB | 14 KB | 14 KB | 14 KB | 28 KB | 14 KB | 7 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB | 1 KB | 512 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 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 | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Temperature Range | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C |
| PWM Channels | 4 x 10-bit | 4 x 10-bit | 4 x 10-bit | 4 x 10-bit | 5 x 10-bit | 3 x 10-bit | 3 x 10-bit |
| Op-amps / PGAs | 4 / 4 | 4 / 4 | 4 / 4 | 4 / 4 | 3 / 3 | 2 / 2 | 2 / 2 |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
主な差別化要因
- Highest peripheral integration in PIC16F177x 28-pin family （vs PIC16F1769T-I/ML)
- Largest flash in 28-pin UQFN footprint （vs PIC16F15356T-I/MX)
- CIP (Core Independent Peripherals) for offloading CPU （vs PIC16F1768T-I/ML)
設計ノート
The 28-UQFN exposed pad must be soldered to a PCB ground plane for both thermal dissipation and electrical grounding. Use at least 1 square inch of copper area beneath the exposed pad on the top layer, plus thermal vias to inner ground planes. Estimated: at 32 MHz CPU with active peripherals, power dissipation is approximately 30-50 mW at 5 V supply, which keeps junction temperature rise below 10 C above ambient with proper PCB copper. Without proper thermal design, junction temperature rise increases by 5-8 C above the same die in a larger SOIC package.
Decoupling capacitors must be placed within 2-3 mm of the VDD/VSS pin pairs. Use 100 nF X7R ceramic capacitors on each VDD pin plus a single 10 uF bulk capacitor at the regulator output. For ADC accuracy, isolate the analog VDD/AVSS supply pins from digital switching noise with separate traces and a ferrite bead if needed. Place the ICSP programming header (RB6/ICSPDAT, RB7/ICSPCLK, MCLR/VPP) on the board edge with a 2x3 or 1x6 0.1 inch pin header footprint for production programming.
Three common pitfalls to avoid. First, do not connect the MCLR pin directly to VDD without a 10 kohm pull-up resistor, as this prevents ICSP programming. Second, configure PPS (Peripheral Pin Select) registers to a known default state at startup; otherwise peripheral signals may appear on unexpected pins. Third, the 10-bit ADC requires an acquisition time of at least 1.5 us before conversion - violating this timing degrades ADC accuracy by several LSBs. Reference Microchip application note AN1079 for ADC design guidance.
When using the four on-chip op-amps in sensitive analog circuits (sensor signal conditioning), keep the analog signal traces short and routed away from PWM or digital switching signals. Use a ground pour on the top layer around the analog section, connected to the analog ground reference via a star connection to the IC's analog ground pin (VSS). Keep the input traces of each op-amp under 10 mm to minimize noise pickup. For motor control applications, route the back-EMF sense traces away from the high-current inverter traces.
コンプライアンス情報
RoHS compliant per Microchip product page. Industrial temperature range -40C to +85C. Not AEC-Q100 qualified - choose PIC16F1776-E variant for extended -40C to +125C operation.
