PIC16F722-I/SP - 8-bit 20MHz 3.5KB Flash MCU | Microchip
部品番号: PIC16F722-I/SP ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.18 | $2.18 |
| 10 | $1.97 | $19.70 |
| 100 | $1.74 | $174.00 |
| 500 | $1.45 | $725.00 |
| 1,000 | $1.22 | $1,220.00 |
PIC16F722-I/SP 概要
An 8-bit Microcontroller Unit (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, timers, communication peripherals, and I/O pins. The PIC16F722 falls under the broader hierarchy of microcontroller -> embedded controller -> semiconductor IC, with the PIC16 mid-range core offering a RISC instruction set optimized for deterministic real-time response. The nanoWatt XLP technology enables quiescent currents in the microamp range, which is critical for always-on sensor and IoT edge nodes that must survive years on a single coin cell.
Key features include 128 bytes of data RAM, 25 digital I/O lines, integrated 10-bit ADC, multiple timers, and the nanoWatt XLP sleep modes that drop supply current to sub-microamp levels. The device supports in-circuit serial programming (ICSP) through two dedicated pins, allowing firmware updates on fully assembled boards without desoldering.
The PIC16F722 uses a Harvard-architecture PIC16 mid-range core with a 14-bit instruction word and 200ns minimum instruction cycle, providing responsive control loops for motor, lighting, and sensor applications. The 3.5KB Flash holds roughly 2K–3K lines of C or assembly code, sufficient for typical sensor hub, user interface, and small protocol bridge firmware. Master Clear Reset, Brown-Out Reset (BOR), and Power-On Reset (POR) are integrated.
Typical applications include industrial sensor nodes, battery-powered remote controls, low-end consumer appliances, white-goods user interfaces, HVAC auxiliary controllers, and general-purpose 8-bit embedded logic replacements. The wide operating voltage and industrial temperature range also support automotive body electronics and outdoor-point-down fault detection modules. The '-I' suffix denotes the -40C to +85C industrial temperature grade. When designing with this MCU, allocate decoupling caps (100nF + 10uF) directly across VDD/VSS within 3mm of the pins and follow Microchip AN775 guidance on oscillator PCB layout to avoid EMI in noise-sensitive ADC measurements.
ドロップイン代替品: PIC16F722-I/SP — 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: PIC16F722-I/SP （同一形状・フットプリント） — 相違点: Package, Timers, Core Architecture, Low-Power Technology, Program Memory (Flash).
クイック比較ツール — 並列比較する代替部品を選択:
PIC16F722-E/SP
✅ ドロップイン✓ 在庫あり
$1.75 / 個
データシートを見る →PIC16F722A-I/SP
✅ ドロップイン✓ 在庫あり
$1.38 / 個
データシートを見る →PIC16F721-I/SP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F720-I/SP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F716-I/SP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F722-I/SP 最大定格＆電気的特性
| Core Architecture | PIC16 (Mid-Range 8-bit RISC) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data SRAM | 128 bytes |
| Maximum CPU Clock | 20 MHz |
| Instruction Cycle | 200 ns |
| Operating Voltage (VDD) | 1.8 V to 5.5 V |
| I/O Pins | 25 |
| ADC | 10-bit (channels count per datasheet) |
| Timers | Multiple 8/16-bit timers |
| パッケージ | SPDIP-28 (0.300" / 7.62mm pitch) |
| 実装タイプ | Through-Hole (DIP) |
| 動作温度 | -40C to +85C (industrial grade) |
| Low-Power Technology | nanoWatt XLP |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| RoHS ステータス | Compliant |
| Lead-Free | Yes |
PIC16F722-I/SP ピン構成
| ピン 1 | MCLR/VPP/RE3 — Master Clear (reset) input / programming voltage / digital input RE3 |
| ピン 2 | RA0 — Digital I/O / analog input |
| ピン 3 | RA1 — Digital I/O / analog input |
| ピン 4 | RA2 — Digital I/O / analog input |
| ピン 5 | RA3 — Digital I/O / analog input |
| ピン 6 | RA4 — Digital I/O (open-drain option) |
| ピン 7 | RA5 — Digital I/O / analog input |
| ピン 8 | VSS — Ground reference |
| ピン 9 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| ピン 10 | OSC2/CLKOUT — Crystal oscillator output / clock output |
| 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 | RC5 — Digital I/O |
| ピン 17 | RC6 — Digital I/O |
| ピン 18 | RC7 — Digital I/O |
| ピン 19 | VSS — Ground reference |
| ピン 20 | VDD — Positive supply voltage |
| ピン 21 | RB0 — Digital I/O / interrupt-on-change |
| ピン 22 | RB1 — Digital I/O / interrupt-on-change |
| ピン 23 | RB2 — Digital I/O / interrupt-on-change |
| ピン 24 | RB3 — Digital I/O / interrupt-on-change |
| ピン 25 | RB4 — Digital I/O / interrupt-on-change |
| ピン 26 | RB5 — Digital I/O / interrupt-on-change |
| ピン 27 | RB6 — Digital I/O / ICSP clock |
| ピン 28 | RB7 — Digital I/O / ICSP data |
主な用途
PIC16F722-I/SP の用途: 6 件s: Battery-Powered Sensor Hub, White-Goods User Interface Controller, HVAC Auxiliary Controller, Industrial Sensor Node / Remote Telemetry, Consumer Remote Control and IR Bridge, Automotive Body Electronics (Auxiliary).
Battery-Powered Sensor Hub
The PIC16F722-I/SP's nanoWatt XLP sleep modes with sub-microamp quiescent current make it ideal for battery-powered sensor hubs that must operate for years on a single coin cell. Its 10-bit ADC, multiple timers, and 1.8V-5.5V supply range cover temperature, humidity, and motion sensing front-ends without extra analog parts. Compared with legacy 8-bit MCUs, XLP technology reduces average sleep current roughly 10x, which directly extends battery service life in remote telemetry nodes.
おすすめ
White-Goods User Interface Controller
The PIC16F722-I/SP drives button-matrix keypads, LED indicators, and rotary encoders in washing-machine, dishwasher, and microwave user-interface panels. Its 25 I/O lines comfortably handle 7-segment displays plus key scanning, while 128 bytes of RAM manages debounce and indicator state machines. Industrial -40C to +85C temperature tolerance covers appliance under-cabinet environments, and ICSP allows firmware updates on the production line without removing the module.
おすすめ
HVAC Auxiliary Controller
In HVAC damper, fan-coil, and zoning-valve controllers, the PIC16F722-I/SP manages temperature sampling, triac/relay drive timing, and serial communication to a master thermostat. The 20MHz clock supports precise PWM for variable-speed blower drives and 200ns interrupt latency for closed-loop fan control. The wide 1.8V-5.5V supply lets the same firmware target both 3.3V sensor electronics and 5V relay-driver boards, simplifying BOM across product tiers.
おすすめ
Industrial Sensor Node / Remote Telemetry
The PIC16F722-I/SP serves as the central MCU in Modbus RTU or wireless-M-Bus sensor nodes that monitor pressure, level, or vibration in industrial plants. Its low XLP sleep current via duty-cycled wake-up supports multi-year battery deployment on tank farms and pipeline skids. The 10-bit ADC with internal reference simplifies transducer signal chains, eliminating external ADC ICs and reducing BOM cost per node.
おすすめ
Consumer Remote Control and IR Bridge
The PIC16F722-I/SP's low-cost 8-bit core and 20MHz speed make it well-suited to consumer IR remote controls, RF-to-IR bridges, and universal remote controllers that translate between protocols. The internal timers can capture IR carrier frequencies up to 56kHz with minimal firmware overhead, while XLP sleep current is below 1uA for years of standby on AAA cells. The 25 I/O pins support button matrices of up to 5x5 plus status LEDs without external scan logic.
おすすめ
Automotive Body Electronics (Auxiliary)
Non-safety automotive body functions such as mirror adjusters, ambient lighting controllers, and auxiliary HVAC blend doors benefit from the PIC16F722-I/SP's industrial temperature grade and 25 I/O count. For under-hood or safety-critical loads, designers should step up to PIC16F722-E/SP with its -40C to +125C extended grade and AEC-Q100 qualification per Microchip's automotive part numbering legend. The same firmware builds typically run on both variants, simplifying dual-source qualification.
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: PIC16F722-I/SP — 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 | PIC16F722-E/SP | PIC16F722A-I/SP | PIC16F721-I/SP | PIC16F720-I/SP | PIC16F716-I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SPDIP-28 | SPDIP-28 (same) | SPDIP-28 (same) | SPDIP-28 (same) | SPDIP-28 (same) | SPDIP-28 (same) |
| Program Flash | 3.5 KB | 3.5 KB | 3.5 KB | 2 KB | 0.875 KB | 8 KB |
| Max CPU Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.0 V to 5.5 V |
| Temperature Grade | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| I/O Pins | 25 | 25 | 25 | 25 | 25 | 25 |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | Legacy nanoWatt (no XLP) |
主な差別化要因
- nanoWatt XLP extreme-low-power sleep modes （vs PIC16F716-I/SP)
- 3.5KB flash versus 2KB on PIC16F721 （vs PIC16F721-I/SP)
- Extended-temperature variant available with same die （vs PIC16F722-E/SP)
- Through-hole SPDIP for easy breadboarding （vs PIC16F722-I/SO)
設計ノート
Decouple VDD/VSS with a 100nF ceramic capacitor placed within 3mm of pins 20 and 8/19, and add a bulk 10uF tantalum or aluminum polymer capacitor on the same net. For battery-powered designs using XLP sleep, gate any unused supply pins (e.g., AVDD) per Microchip AN775 to avoid quiescent leakage paths. Estimated: at 3.3V and 1uA sleep, a CR2032 (220mAh) provides approximately 25 years theoretical life, but real-world self-discharge limits this to 8-10 years.
Keep the crystal (or ceramic resonator) traces between OSC1 (pin 9) and OSC2 (pin 10) short and surrounded by a ground guard ring. Place C1/C2 crystal load capacitors symmetrically within 5mm of the oscillator pins. Route the ICSP lines (RB6/ICSPCLK and RB7/ICSPDAT) as direct stubs to a 6-pin header, avoiding shared nets with high-current drivers to prevent programming glitches during in-field updates.
Configure the MCLR pin (pin 1) correctly: tie through a 10kohm pull-up to VDD for normal operation, but never leave it floating. Always enable the Brown-Out Reset (BOR) at power-up to avoid undefined behavior during slow VDD ramp; Microchip datasheet 41391E provides BOR voltage threshold options. For ADC accuracy above 8 bits, add a 100ns acquisition delay before conversion start to settle the internal sample-and-hold capacitor.
コンプライアンス情報
RoHS-compliant lead-free SPDIP-28 package per Microchip product page. The -I/SP variant is industrial grade (-40C to +85C); for AEC-Q100 automotive applications step up to PIC16F722-E/SP with extended temperature range.
