PIC16F526-I/MG - 8-Bit MCU, 1.5KB Flash, 20MHz | Microchip
部品番号: PIC16F526-I/MG ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.28 | $12.80 |
| 100 | $1.15 | $115.00 |
| 500 | $1.02 | $510.00 |
| 1,000 | $0.91 | $910.00 |
PIC16F526-I/MG 概要
An 8-bit Flash microcontroller (MCU) is a small, self-contained computing device built around an 8-bit data path and non-volatile Flash program memory. It sits within a hierarchy of: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. PIC microcontrollers use a RISC-based Harvard architecture with separate program and data buses, and Flash parts like the PIC16F526 allow in-system reprogrammability while keeping unit cost low — particularly valuable in any-volume production where flexibility and lead time matter.
Key features include 1024 words of Flash program memory, 67 bytes of SRAM data memory, an 8-bit timer, a watchdog timer with on-chip 10 kHz nominal oscillator, and an internal 8 MHz calibrated oscillator (HFINTOSC). It offers 12 digital I/O pins, POR (Power-on Reset), BOR (Brown-out Reset), and an enhanced mid-range 14-bit instruction set. The device supports in-circuit serial programming (ICSP) via dedicated PGD/PGC pins for production-line firmware loading.
Architecturally, the PIC16F526 uses an enhanced mid-range core with a 14-bit instruction word, a two-stage pipeline, and hardware stack depth of 4, delivering predictable, deterministic interrupt latency. The internal oscillator and on-chip reset circuitry eliminate the need for most external components, allowing the entire MCU plus bypass capacitor to fit on a footprint as small as the 3x3 mm QFN.
Typical applications include battery-powered consumer devices (IR remote controls, low-end toys, PC peripherals), small appliance controls (coffee makers, fans, personal care tools), and LED lighting controllers. Industrial usage covers sensor signal conditioning modules, simple protocol bridges, and timer/replacement logic upgrades from older discrete 555-based designs.
When designing with this part, place a 0.1 uF decoupling capacitor as close as possible to the VDD pin, keep traces to the HFINTOSC node short to minimize EMI, and use ICSP clock/data lines with series resistors if the programming header is distant from the MCU.
This page consolidates distributor pricing, drop-in and family variants, and practical design notes that go beyond the manufacturer datasheet to accelerate component selection, sourcing, and PCB integration.
ドロップイン代替品: PIC16F526-I/MG — 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: PIC16F526-I/MG （同一形状・フットプリント） — 相違点: Operating Temperature, Package, Timers, Internal Oscillator, ADC.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16F526T-I/MG
✅ ドロップイン✓ 在庫あり
$0.78 / 個
データシートを見る →PIC16F526-E/MG
✅ ドロップイン✓ 在庫あり
$0.66 / 個
データシートを見る →PIC16F506-I/MG
✅ ドロップイン✓ 在庫あり
$0.66 / 個
データシートを見る →PIC16F505-I/MG
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F526-I/MG 最大定格＆電気的特性
| Core Architecture | PIC 8-bit Enhanced Mid-Range |
| Program Memory | 1.5 KB Flash (1K x 14 words) |
| Data Memory (SRAM) | 67 B |
| Data EEPROM | Not present |
| Maximum CPU Speed | 20 MHz |
| Operating Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 12 |
| Timers | 1 x 8-bit Timer0 with prescaler |
| Watchdog Timer | Yes, with dedicated 10 kHz nominal internal WDT oscillator |
| Internal Oscillator | 8 MHz HFINTOSC (calibrated, software-selectable) |
| Reset Sources | POR, BOR, MCLR, WDT |
| Brown-out Reset | Yes, configurable |
| Instruction Set Width | 14-bit |
| Hardware Stack Depth | 4 levels |
| In-Circuit Programming | ICSP (PGD/PGC) |
| パッケージ | 16-QFN (3x3 mm) with exposed thermal pad |
| 実装タイプ | Surface Mount |
| 動作温度 | -40C to +85C (Industrial -I grade) |
| RoHS ステータス | Compliant |
PIC16F526-I/MG ピン構成
| ピン 1 | RA0/AN0 — Digital I/O / analog channel 0 (part-number dependent) |
| ピン 2 | RA1/AN1 — Digital I/O / analog channel 1 |
| ピン 3 | RA2 — Digital I/O |
| ピン 4 | RA3/MCLR/VPP — Digital I/O / Master Clear reset (active low) / ICSP programming voltage |
| ピン 5 | VSS — Ground reference |
| ピン 6 | RA4 — Digital I/O (open-drain option on some PIC16 parts) |
| ピン 7 | RB4 — Digital I/O with interrupt-on-change |
| ピン 8 | RB5 — Digital I/O with interrupt-on-change |
| ピン 9 | RB6/ICSPCLK — Digital I/O / ICSP clock |
| ピン 10 | RB7/ICSPDAT — Digital I/O / ICSP data |
| ピン 11 | RC0 — Digital I/O |
| ピン 12 | RC1 — Digital I/O |
| ピン 13 | RC2 — Digital I/O |
| ピン 14 | RC3 — Digital I/O |
| ピン 15 | RC4 — Digital I/O |
| ピン 16 | VDD — Positive supply (2.0V to 5.5V) |
主な用途
PIC16F526-I/MG の用途: 6 件s: Consumer IR Remote Control, Small Appliance Control (Fans, Coffee Makers, Personal Care), Battery-Powered Sensor Node, LED Lighting Controller (Drive and Dimming), Industrial Timer / 555 Replacement, PC Peripheral Controller (Keyboards, Mice, Dongles).
Consumer IR Remote Control
The PIC16F526-I/MG is purpose-built for low-cost infrared remote controls in TV, set-top-box, and audio equipment. Its 1.5 KB Flash comfortably holds protocol stacks such as NEC, RC5, and SIRC, while the calibrated internal 8 MHz oscillator delivers accurate carrier timing without external crystals. Operating from 2.0V to 5.5V lets it run directly from two AAA cells, and the brown-out reset prevents spurious key presses during battery end-of-life. The 12 I/O pins can drive an LED, drive a TX carrier pin, and scan a 3x4 key matrix with wake-on-change interrupts, all in a 16-QFN 3x3 mm package that fits inside slim handset enclosures.
おすすめ
Small Appliance Control (Fans, Coffee Makers, Personal Care)
PIC16F526-I/MG is widely deployed in small household and personal-care appliances where cost, board area, and reliability matter. The internal oscillator eliminates an external resonator, the brown-out reset handles motor inrush sag, and the 12 I/O directly drive triac interface pins for heater or motor control. The 16-QFN 3x3 mm package drops onto sub-$1 BOM applications, while the -40C to +85C industrial temperature range supports kitchen and bathroom environments. Engineers appreciate the deterministic interrupt response for safety-critical timing in cooker and kettle end-products where UL/IEC 60335 compliance is required.
おすすめ
Battery-Powered Sensor Node
PIC16F526-I/MG fits wireless and wired sensor nodes where standby current and PCB area are tightest. The 8 MHz HFINTOSC plus selectable LF oscillator mode lets the design sleep at microamp-level draw and wake periodically to read sensors, while the 2.0V minimum supply supports single-cell Li coin or 2xAA chemistries. The on-chip watchdog timer with dedicated 10 kHz oscillator ensures the system recovers from software lockups without an external clock source. Combined with the 16-QFN 3x3 mm footprint, it integrates cleanly alongside low-power RF front ends, MEMS sensors, and FET drivers on a sub-200 sq mm sensor board.
おすすめ
LED Lighting Controller (Drive and Dimming)
The PIC16F526-I/MG is a strong fit for entry-level LED drivers and dimmer controllers where deterministic PWM-free timing or simple on-off toggling plus blinking patterns are required. The internal oscillator keeps BOM cost low for high-volume decorative and indicator lighting, while the 20 MHz core runs custom breathing/blink effects with minimal Flash footprint. Industrial -I temperature rating supports sealed luminaires. The 16-QFN 3x3 mm package tucks into MR16, PAR, and T-module form factors where 10 mm x 10 mm total MCU allocation is the design constraint.
おすすめ
Industrial Timer / 555 Replacement
Engineers upgrading legacy 555-based timing or sequencing circuits to a microcontroller choose PIC16F526-I/MG for price parity, more flexible timing, and integrated reset management. The internal oscillator and on-chip WDT replace astable timing components and discrete reset supervisors, while the 14-bit instruction set lets a single PIC16F526 replace multiple 555s plus support logic. Operating voltage to 5.5V makes it a 1:1 drop-in for +5V timer boards, and the 16-QFN 3x3 mm package reduces board area versus DIP-8 555 circuits.
おすすめ
PC Peripheral Controller (Keyboards, Mice, Dongles)
USB HID-class peripherals such as keyboards, mice, presentation clickers, and RF dongles fit on a PIC16F526-I/MG and supporting bill of materials under a 30 sq mm PCB area. The 14-bit RISC core runs HID report handlers and sleep-management routines in less than 1 KB of Flash, while the 12 I/O scan matrix keyboards and drive optical or scroll-wheel sensors. The internal oscillator plus brown-out reset keeps USB low-power suspend semantics reliable, and the 16-QFN 3x3 mm package scales to slim dongle enclosures. ICSP programming via PGD/PGC supports in-line product firmware personalization.
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: PIC16F526-I/MG — 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 | PIC16F526T-I/MG | PIC16F526-E/MG | PIC16F506-I/MG | PIC16F505-I/MG |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 16-QFN (3x3 mm) | 16-QFN (3x3 mm) - same | 16-QFN (3x3 mm) - same | 16-QFN (3x3 mm) - same | 16-QFN (3x3 mm) - same |
| Program Memory | 1.5 KB Flash | 1.5 KB Flash | 1.5 KB Flash | 1.5 KB Flash | 1.5 KB Flash |
| RAM | 67 B | 67 B | 67 B | 67 B | 72 B |
| Max CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Voltage Range | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C |
| I/O Pins | 12 | 12 | 12 | 12 | 12 |
| Notable Extra Peripherals | WDT, BOR, internal 8 MHz oscillator | Same as base part | Same as base part | Adds 16-bit Timer1, 10-bit ADC | Adds Comparator module |
主な差別化要因
- More Flash and richer peripherals within the same 16-QFN footprint （vs PIC16F505-I/MG)
- Industrial vs Extended temperature grade availability in the same 16-QFN （vs PIC16F526-E/MG)
- Drop-in 16-QFN compatibility with the PIC16F506 upgrade path （vs PIC16F506-I/MG)
設計ノート
Decouple the VDD pin with a 0.1 uF X5R or X7R ceramic capacitor placed within 2 mm of the package pin and routed directly to the VSS thermal pad. The PIC16F526-I/MG operates from 2.0V to 5.5V; using a 10 uF bulk cap in parallel is recommended for switching supplies and motor-driven rails where inductive kicks can momentarily drop VDD and trigger spurious BOR events.
Do not connect the MCLR pin directly to VDD without the standard 10 kohm pull-up plus series resistor ICSP circuit; this blocks ICSP in-system programming and prevents production firmware updates. Likewise, the PGD/PGC pins are multiplexed with RB7/RB6 and should not be hard-pulled externally or repurposed without isolating the programming header.
For QFN packages, the exposed thermal pad (EP) must be soldered to a copper pad of at least equal package footprint, stitched via-array to internal ground, to meet thermal and mechanical specifications. Missing this connection can cause intermittent operation or reflow defects. Place ground vias in a 1.0 mm to 1.2 mm pitch grid under the EP according to Microchip QFN layout guidelines.
コンプライアンス情報
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified — choose PIC16F526-E/MG only for extended-temperature, non-automotive environments. Lead-free and halogen-free per Microchip environmental certification.
