PIC16C622A-04I/SO - 8-Bit 4MHz OTP MCU 18-SOIC | Microchip
部品番号: PIC16C622A-04I/SO ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $4.26 | $4.26 |
| 10 | $3.84 | $38.40 |
| 100 | $3.41 | $341.00 |
| 500 | $3.05 | $1,525.00 |
| 1,000 | $2.72 | $2,720.00 |
PIC16C622A-04I/SO 概要
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals. The PIC16C622A belongs to the mid-range 8-bit PICmicro family, sitting within Microchip's broader taxonomy of 8-bit microcontrollers -> microcontrollers -> embedded processors -> integrated circuits. Its RISC-style Harvard architecture with 35 single-cycle instructions simplifies firmware development while delivering deterministic real-time behavior suitable for low-power control loops.
Key features include an operating voltage range of 2.5 V to 5.5 V (industrial temperature -40 °C to +85 °C as denoted by the 'I' suffix), two 8-bit timers plus one 16-bit timer/counter with capture/compare/PWM capability, a USART/SCI serial port, an analog comparator, and a watchdog timer with on-chip RC oscillator for reliable operation. The PIC16C622A also provides a 4 MHz internal-execution rate from an external 4 MHz crystal, an 8-bit parallel slave port, and up to 13 bidirectional I/O pins with high-current sink/source capability.
Architecturally, the device uses a 14-bit wide program word with separate program and data buses (Harvard architecture), enabling simultaneous instruction fetch and data access. The 4 MHz oscillator combined with a 4:1 instruction-pipeline divider delivers a 1 µs single-cycle instruction time (200 ns cycle at 20 MHz), while the on-chip Power-on Reset, Brown-out Reset, and Watchdog Timer provide robust field-deployment reliability.
Typical applications include consumer appliance control, security system panels, automotive body modules, industrial sensor interfaces, low-cost remote controls, and small-form-factor motor-driver front-ends. The wide operating voltage and industrial temperature range also suit battery-powered instrumentation and HVAC peripheral controllers.
When designing with this part, note that OTP memory cannot be re-programmed in-circuit; for development or low-volume production, choose a Flash-based equivalent such as PIC16F627A or PIC16F628A in the same 18-pin SOIC footprint to reuse PCB layout and firmware libraries.
This page synthesizes distributor stock and pricing, drop-in same-package alternatives from Microchip's PIC16C family, and practical design notes beyond the manufacturer datasheet - supporting faster sourcing decisions for engineering and procurement teams.
ドロップイン代替品: PIC16C622A-04I/SO — 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: PIC16C622A-04I/SO （同一形状・フットプリント） — 相違点: Package, Program Memory Size, Core Architecture, Timers, Program Memory Type.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16F628A-I/SO
✅ ドロップイン✓ 在庫あり
$2.32 / 個
データシートを見る →PIC16F627A-I/SO
✅ ドロップイン✓ 在庫あり
$1.74 / 個
データシートを見る →PIC16C622A-04E/SO
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16C621A-04I/SO
✅ ドロップイン✓ 在庫あり
$1.98 / 個
データシートを見る →PIC16C620A-04I/SO
✅ ドロップイン✓ 在庫あり
$2.55 / 個
データシートを見る →PIC16C622A-04I/SO 最大定格＆電気的特性
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Program Memory Type | OTP (One-Time-Programmable) EPROM |
| Program Memory Size | 3.5 KB (2K x 14 words) |
| Data RAM | 128 bytes |
| Data EEPROM | 128 bytes |
| Maximum CPU Frequency | 4 MHz |
| Instruction Cycle Time | 1 µs at 4 MHz |
| Number of I/O Pins | 13 |
| Timers | 2 x 8-bit, 1 x 16-bit CCP |
| Communication Interfaces | SCI/USART |
| Peripherals | Brown-out Reset, Watchdog Timer, Analog Comparator, Parallel Slave Port |
| Supply Voltage Range | 2.5 V to 5.5 V |
| 動作温度範囲 | -40 °C to +85 °C (Industrial) |
| パッケージ | 18-SOIC (7.50 mm body width) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
PIC16C622A-04I/SO ピン構成
| ピン 1 | RA2 — Bidirectional I/O pin (Port A bit 2) |
| ピン 2 | RA3 — Bidirectional I/O pin (Port A bit 3) |
| ピン 3 | RA4/T0CKI — Bidirectional I/O / Timer0 clock input |
| ピン 4 | MCLR/VPP — Master Clear (Reset) input / Programming voltage |
| ピン 5 | VSS — Ground reference |
| ピン 6 | RB0/INT — Bidirectional I/O / External interrupt input |
| ピン 7 | RB1 — Bidirectional I/O pin (Port B bit 1) |
| ピン 8 | RB2 — Bidirectional I/O pin (Port B bit 2) |
| ピン 9 | RB3 — Bidirectional I/O pin (Port B bit 3) |
| ピン 10 | RB4 — Bidirectional I/O pin (Port B bit 4, interrupt-on-change) |
| ピン 11 | RB5 — Bidirectional I/O pin (Port B bit 5, interrupt-on-change) |
| ピン 12 | RB6 — Bidirectional I/O / ICSP clock (interrupt-on-change) |
| ピン 13 | RB7 — Bidirectional I/O / ICSP data (interrupt-on-change) |
| ピン 14 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
| ピン 15 | OSC2/CLKOUT — Oscillator output / Clock output |
| ピン 16 | OSC1/CLKIN — Oscillator input / External clock input |
| ピン 17 | RA0/AN0 — Bidirectional I/O / Analog comparator input 0 |
| ピン 18 | RA1/AN1 — Bidirectional I/O / Analog comparator input 1 |
主な用途
PIC16C622A-04I/SO の用途: 6 件s: Consumer Appliance Control, Security System Panels, Automotive Body Modules, Industrial Sensor Interfaces, Low-Cost Remote Controls, HVAC Peripheral Controllers.
Consumer Appliance Control
The PIC16C622A-04I/SO fits consumer appliance front-panel controllers (washing machines, microwave ovens, dishwasher HMI boards) because its 4 MHz CPU delivers a 1 µs instruction cycle that is fast enough for button-debounce loops, 7-segment multiplex, and triac phase-control timing in real time. The 3.5 KB OTP holds typical appliance state machines, while the analog comparator enables zero-crossing detection for triac firing without extra hardware. With 13 I/O pins and 2.5 V to 5.5 V operation, the device interfaces directly to LED indicators, keypads, and relay drivers.
おすすめ
Security System Panels
For burglar alarm control panels and PIR-motion-sensor interface boards, the PIC16C622A's 13 I/O pins directly scan 4 to 8 zone loops while its USART/SCI port talks to a central station dialer or keypad bus. The brown-out reset and watchdog timer with on-chip RC oscillator prevent lockups during power-line disturbances, and the analog comparator acts as a window discriminator for PIR signal conditioning. OTP memory prevents firmware tampering after deployment, a regulatory requirement in some security certifications.
おすすめ
Automotive Body Modules
In automotive body-control applications such as lighting controllers, mirror adjusters, or seat-position modules, the PIC16C622A-04I/SO drives PWM outputs for lamp dimming via its 16-bit CCP timer at frequencies compatible with 100 Hz automotive lighting. The 2.5 V to 5.5 V supply range covers 5 V regulated body rails, and the analog comparator monitors battery voltage for load-dump detection. For under-hood or higher-temperature zones, migrate to PIC16C622A-04E/SO (-40 °C to +125 °C) without PCB changes.
おすすめ
Industrial Sensor Interfaces
For 4-20 mA loop-powered sensor transmitters or thermocouple pre-digitizer boards, the PIC16C622A reads its analog comparator as a 1-bit sigma-delta modulator against a precision reference, while its USART outputs ASCII or Modbus frames to a host PLC. The 1 µs instruction cycle supports bit-banging I2C master timing for EEPROM calibration storage. With 128 bytes RAM the device can buffer a 32-sample moving average without external memory, simplifying the analog signal chain.
おすすめ
Low-Cost Remote Controls
Battery-powered IR or RF remote controls benefit from the PIC16C622A's 2.5 V minimum supply (compatible with two alkaline cells) and its analog comparator waking the CPU only when a button is pressed. The USART or bit-banged PWM generates 38 kHz carrier for IR transmission, and the 3.5 KB OTP holds large code-book libraries for multi-device universal remotes. Industrial -40 °C to +85 °C rating survives garage-door or outdoor keypad environments.
おすすめ
HVAC Peripheral Controllers
The PIC16C622A-04I/SO serves as a fan-speed or damper-controller slave in HVAC systems, using the 16-bit CCP timer to generate variable-frequency PWM for brushless DC fan drivers while the analog comparator senses zero-crossing for triac-based line-voltage control. The watchdog timer and brown-out reset ensure recovery from compressor switching transients on the supply rail. With industrial temperature rating, the part operates in attic or basement equipment closets reliably.
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: PIC16C622A-04I/SO — 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 | PIC16F628A-I/SO | PIC16F627A-I/SO | PIC16C622A-04E/SO | PIC16C621A-04I/SO | PIC16C620A-04I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Program Memory Type | OTP (3.5 KB) | Flash (3.5 KB) | Flash (1.75 KB) | OTP (3.5 KB) | OTP (2 KB) | OTP (0.875 KB) |
| Maximum CPU Frequency | 4 MHz | 20 MHz | 20 MHz | 4 MHz | 4 MHz | 4 MHz |
| Data RAM | 128 bytes | 224 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| USART | Yes | Yes | Yes | Yes | Yes | No |
| Lifecycle Status | NRND | Active | Active | NRND | NRND | NRND |
主な差別化要因
- Drop-in compatible with Flash-based PIC16F628A-I/SO for future-proofing （vs PIC16F628A-I/SO)
- Larger program memory than PIC16C621A-04I/SO for code-intensive tasks （vs PIC16C621A-04I/SO)
- Industrial temperature range optimized for standard embedded environments （vs PIC16C622A-04E/SO)
設計ノート
The PIC16C622A-04I/SO operates from 2.5 V to 5.5 V; bulk-decouple VDD (pin 14) and VSS (pin 5) with a 100 nF ceramic capacitor placed within 5 mm of the supply pins, plus a 10 µF tantalum or aluminum electrolytic on the board power entry. Add a 1 kΩ pull-up on MCLR/VPP (pin 4) for normal operation; the internal brown-out reset triggers at ~4.0 V on a 5 V rail, ensuring predictable reset behavior during supply droops.
Place the 4 MHz crystal (or ceramic resonator) within 10 mm of OSC1 (pin 16) and OSC2 (pin 15), with short traces and a ground guard ring to minimize EMI. For HS crystal mode, add 15-33 pF load capacitors per crystal datasheet. The ICSP pins RB6 (pin 12) and RB7 (pin 13) should remain accessible for in-system programming; do not load them with heavy capacitance (>50 pF) that prevents debugger handshaking.
OTP memory can be programmed only once - verify firmware with a windowed or Flash equivalent (PIC16F627A/628A) before committing to production programming. Configuration bits must be set explicitly: disable the watchdog timer (WDTE=0) if not used, set oscillator mode (FOSC) to XT for 4 MHz crystal, and enable the power-on timer (PWRTE=1) for slow-rising supplies. Unused I/O pins must be configured as outputs and tied low to minimize current draw.
コンプライアンス情報
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - automotive designs should verify supplier documentation or choose AEC-Q100 qualified Flash-based equivalents.