PIC16C65B-04/PQ - 8-Bit 4MHz 7KB OTP MCU 44-MQFP | Microchip
部品番号: PIC16C65B-04/PQ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $16.5 | $16.50 |
| 10 | $14.85 | $148.50 |
| 100 | $13.2 | $1,320.00 |
| 500 | $11.55 | $5,775.00 |
| 1,000 | $10.25 | $10,250.00 |
PIC16C65B-04/PQ 概要
An 8-bit microcontroller (MCU) is a microprocessor integrated with program memory, data RAM, and peripheral blocks on a single die. PIC16C-series MCUs use a Harvard RISC architecture that separates program and data buses, allowing instruction fetch and data access in the same clock cycle. This family sits within Microchip's mid-range PIC family, which historically targets cost-sensitive embedded control applications. The OTP variant is programmed once at production or during board bring-up and is not erasable, distinguishing it from Flash (PIC16F) and windowed EPROM (PIC16C/JW) variants.
Key features of the PIC16C65B-04/PQ include a fully static design (allowing DC to maximum clock), wide operating voltage up to 6.0 V, low power consumption of 5 mA typical at 5 V/4 MHz and 1 uA typical at 3 V/32 kHz, and a peripheral set including Capture/Compare/PWM (CCP), USART, and an 8-bit ADC. The 33 I/O lines support direct interfacing to LEDs, relays, and digital sensors, while on-chip peripherals minimize external component count.
The PIC16C65B-04/PQ is built on Microchip's EPROM/ROM CMOS process and uses a 14-bit instruction word. With 4 MHz CPU clock, instruction throughput is effectively 1 MIPS, sufficient for slow control loops, simple user interfaces, and protocol bridging. The 44-MQFP package (10x10 mm body) provides gull-wing leads suitable for standard SMT assembly lines and offers pin compatibility with the broader PIC16C63A/65B/73B/74B family.
Typical applications include industrial control panels, motor drive signal conditioning, automotive body electronics, HVAC thermostat controllers, security keypad interfaces, and consumer appliance control boards. The 33 I/O count and on-chip peripherals enable direct replacement of discrete logic with a programmable solution, while OTP memory supports low-cost high-volume production where firmware is fixed.
When designing with this device, ensure the MCLR reset circuit uses the proper pull-up network and that the oscillator configuration (HS or XT) matches the crystal selection. OTP parts require programming during board production, so plan for MPLAB PM3 or equivalent programmer integration into the manufacturing flow.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing engineers and procurement teams with consolidated decision-support information.
ドロップイン代替品: PIC16C65B-04/PQ — 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: PIC16C65B-04/PQ （同一形状・フットプリント） — 相違点: Package, Timers, Operating Temperature, Mounting Type, Core Architecture.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16C65B-04I/PQ
✅ ドロップイン✓ 在庫あり
$5.45 / 個
データシートを見る →PIC16C65B-04E/PQ
✅ ドロップイン✓ 在庫あり
$11.1 / 個
データシートを見る →PIC16C65BT-04E/PQ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16C65A-20/PQ
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$4.61 / 個
データシートを見る →PIC16C65AT-04I/PT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$4.5 / 個
データシートを見る →PIC16C65B-04/PQ 最大定格＆電気的特性
| Program Memory Size | 7 KB (4K x 14) |
| Program Memory Type | OTP (One-Time-Programmable) |
| RAM Size | 192 bytes |
| CPU Architecture | 8-bit PIC16C mid-range RISC |
| 最大クロック周波数 | 4 MHz |
| Instruction Word Size | 14-bit |
| Instruction Set | 35 single-word instructions |
| Supply Voltage Range | 4.0 V to 5.5 V (extended range up to 6.0 V) |
| I/O Pins | 33 |
| ADC | 8-bit, multi-channel |
| USART | Yes (1x) |
| CCP Modules | Capture/Compare/PWM |
| Timers | Timer0, Timer1, Timer2 |
| 動作温度 | -40C to +85C (Industrial) |
| Package Type | 44-MQFP (Metric Quad Flat Pack, 10x10 mm) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Non-RoHS (OTP windowed/legacy) |
| Lead-Free | No (contains lead, ceramic windowed variants available) |
PIC16C65B-04/PQ ピン構成
| ピン 1 | OSC1/CLKI — Oscillator input or external clock input |
| ピン 2 | OSC2/CLKO — Oscillator output or clock output |
| ピン 3 | MCLR — Master Clear reset input (active low) |
| ピン 4 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| ピン 5 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| ピン 6 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| ピン 7 | RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / Voltage reference |
| ピン 8 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| ピン 9 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| ピン 10 | VSS — Ground |
| ピン 11 | VDD — Positive supply voltage |
| ピン 12 | RB0/INT — PORTB bit 0 / External interrupt |
| ピン 13 | RB1 — PORTB bit 1 |
| ピン 14 | RB2 — PORTB bit 2 |
| ピン 15 | RB3 — PORTB bit 3 |
| ピン 16 | RB4 — PORTB bit 4 |
| ピン 17 | RB5 — PORTB bit 5 |
| ピン 18 | RB6/PGC — PORTB bit 6 / ICSP clock |
| ピン 19 | RB7/PGD — PORTB bit 7 / ICSP data |
| ピン 20 | VSS — Ground |
| ピン 21 | VDD — Positive supply voltage |
| ピン 22 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / clock input |
| ピン 23 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| ピン 24 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| ピン 25 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| ピン 26 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| ピン 27 | RC5/SDO — PORTC bit 5 / SPI data out |
| ピン 28 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| ピン 29 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| ピン 30 | VSS — Ground |
| ピン 31 | VDD — Positive supply voltage |
| ピン 32 | RD0 — PORTD bit 0 |
| ピン 33 | RD1 — PORTD bit 1 |
| ピン 34 | RD2 — PORTD bit 2 |
| ピン 35 | RD3 — PORTD bit 3 |
| ピン 36 | RD4 — PORTD bit 4 |
| ピン 37 | RD5 — PORTD bit 5 |
| ピン 38 | RD6 — PORTD bit 6 |
| ピン 39 | RD7 — PORTD bit 7 |
| ピン 40 | VSS — Ground |
| ピン 41 | VDD — Positive supply voltage |
| ピン 42 | RE0/RD — PORTE bit 0 / Parallel slave port read |
| ピン 43 | RE1/WR — PORTE bit 1 / Parallel slave port write |
| ピン 44 | RE2/CS — PORTE bit 2 / Parallel slave port chip select |
主な用途
PIC16C65B-04/PQ の用途: 6 件s: Industrial Control Panel, HVAC Thermostat Controller, Security Keypad Interface, Consumer Appliance Control Board, Automotive Body Electronics, Motor Drive Signal Conditioning.
Industrial Control Panel
The PIC16C65B-04/PQ's 33 I/O pins and integrated peripherals make it well-suited for industrial control panel applications including button matrix scanning, LED/relay driving, and Modbus RTU communication via the on-chip USART. Its 4 MHz CPU delivers sufficient throughput for slow control loops (typically 10-100 Hz) while the OTP memory and 44-MQFP package support high-volume SMT production. Industrial designers value the wide 4-5.5V supply range that tolerates 24V-derived rails with simple regulation, and the 7KB program memory accommodates complex state machines for pump, valve, and conveyor control logic. The PIC16C65B-04/PQ consumes only 5 mA typical at full clock, allowing fanless panel designs in sealed enclosures.
おすすめ
HVAC Thermostat Controller
The PIC16C65B-04/PQ is widely deployed in HVAC thermostat controllers where its 8-bit ADC reads temperature sensors (NTC thermistors or analog ICs), CCP modules drive TRIAC phase-control circuits, and 33 I/O lines interface to LCD displays, keypads, and relay drivers. The 192-byte RAM is sufficient for thermostat state variables (setpoint, hysteresis, mode flags), while 7KB OTP holds scheduling firmware. The industrial temperature variant (-40C to +85C) handles rooftop and basement installations. Low-power modes enable battery-backed thermostat designs; the device draws only 1 uA typical at 32 kHz in sleep mode, extending backup battery life to multi-year durations.
おすすめ
Security Keypad Interface
Security alarm keypads use the PIC16C65B-04/PQ to scan 4x4 button matrices, drive LED status indicators, communicate with central alarm panels via USART, and manage piezo buzzer tones through PWM. The 33 I/O lines easily accommodate matrix scanning with diodes, status LEDs (zone, armed, bypass), and dedicated inputs (panic, fire, medical). OTP memory prevents firmware reverse-engineering, enhancing security product IP protection. The 44-MQFP package enables slimline keypad enclosures with surface-mount assembly for volume production. The MCU's RISC architecture delivers deterministic scan timing critical for debounce algorithms and tamper detection response.
おすすめ
Consumer Appliance Control Board
Washing machines, dishwashers, and microwave ovens use the PIC16C65B-04/PQ to coordinate motor control (via CCP/PWM), user interface scanning, sensor monitoring, and timer functions. The 4 MHz clock and 14-bit instruction set provide enough MIPS for motor PID loops, while 7KB OTP holds complete appliance firmware including safety checks and diagnostic routines. The integrated USART enables service technician diagnostics through serial interfaces. OTP memory ensures firmware stability for the appliance's 10-15 year service life. The 44-MQFP package is compatible with automated SMT lines used in high-volume white goods manufacturing.
おすすめ
Automotive Body Electronics
Body control modules in automotive applications leverage the PIC16C65B-04/PQ (extended grade variant) for window lift control, mirror adjustment, interior lighting, and auxiliary accessory management. The extended temperature grade operates reliably from -40C to +125C under-hood and dashboard environments. The 33 I/O lines interface to body wiring harness connectors, while PWM drives LED dimming and motor speed control. OTP memory provides cost-effective firmware storage for high-volume automotive production. The wide 4-5.5V supply tolerance handles 12V battery transients through external regulation. Note: AEC-Q100 qualification should be verified with the specific automotive part number ordering code.
おすすめ
Motor Drive Signal Conditioning
Brush DC motor and small stepper motor controllers use the PIC16C65B-04/PQ's CCP modules for PWM generation, ADC for current sensing via shunt resistors, and digital I/O for direction and enable control. The 4 MHz CPU clock supports PWM frequencies up to 20 kHz (above audible range) with 8-bit duty resolution. The 33 I/O lines accommodate multi-axis motion control or H-bridge direction logic. OTP memory locks in calibration data and motor profiles at production programming. The integrated peripherals reduce external component count, enabling compact motor controller PCBs for robotics, CNC accessories, and 3D printer extruders in legacy designs.
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: PIC16C65B-04/PQ — 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 | PIC16C65B-04I/PQ | PIC16C65B-04E/PQ | PIC16C65BT-04E/PQ | PIC16C65A-20/PQ |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-MQFP (10x10) | 44-MQFP (10x10) - same | 44-MQFP (10x10) - same | 44-MQFP (10x10) - same | 44-MQFP (10x10) - same |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP |
| Max Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| RAM | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes |
| I/O Pins | 33 | 33 | 33 | 33 | 33 |
| Temperature Grade | Commercial (0C to +70C) | Industrial (-40C to +85C) | Extended/Automotive | Extended/Automotive (tape and reel) | Commercial |
| Memory Type | OTP | OTP | OTP | OTP | OTP |
主な差別化要因
- Wide 4.0-5.5V supply range with extended 6.0V tolerance （vs PIC16C65A-20/PQ)
- Industrial temperature grade (-40C to +85C) option available （vs PIC16C65B-04E/PQ)
- Cost-effective OTP memory for high-volume production （vs Flash-based PIC16F877A-I/PQ)
設計ノート
The PIC16C65B-04/PQ operates from 4.0 V to 5.5 V with extended operation up to 6.0 V. Place 100 nF decoupling capacitors as close as possible to each VDD/VSS pair (the 44-MQFP package has 4 VDD pins and 4 VSS pins distributed around the package). Use bulk 10 uF tantalum or ceramic on the main supply rail. For battery-backed applications, leverage the device's low-power sleep mode drawing approximately 1 uA typical at 3 V/32 kHz to extend backup battery life.
The 44-MQFP package (10x10 mm body, 0.8 mm lead pitch) requires careful PCB land pattern design per IPC-7351. Use solder mask defined (SMD) pads for better tombstoning control on small-outline gull-wing leads. Keep the MCLR pull-up resistor (typically 10 kohm) close to the pin, and add the optional MCLR decoupling capacitor (typically 0.1 uF) only if the application requires enhanced ESD protection. Route the ICSP clock (PGC/RB6) and data (PGD/RB7) lines away from high-frequency switching signals to prevent programming interference.
OTP (One-Time-Programmable) memory cannot be erased once programmed - verify firmware thoroughly using windowed/UV-erasable PIC16C65B/JW or Flash PIC16F877A prototypes before committing to OTP production parts. Configure the oscillator mode (HS for >4 MHz, XT for <=4 MHz, LP for 32 kHz) in the configuration word to match the crystal; mismatched modes cause unreliable startup or overdrive the crystal. Ensure unused I/O pins are configured as outputs (not inputs) to avoid floating-input current consumption of approximately 100-500 uA per pin.
Place the crystal oscillator (or ceramic resonator) within 10 mm of the OSC1/OSC2 pins to minimize parasitic capacitance and ensure stable oscillation. Keep oscillator traces short and surrounded by ground pour to reduce EMI susceptibility. For ADC accuracy, separate the analog AVdd/AVss supply pin pair from digital VDD/VSS pins, and add a ferrite bead or inductor between digital and analog supplies to prevent digital switching noise from corrupting ADC measurements.
コンプライアンス情報
Legacy OTP windowed ceramic variant; not RoHS compliant due to lead content. For RoHS-compliant modern alternatives, consider PIC16F877A-I/PQ (Flash, lead-free, RoHS compliant). AEC-Q100 not qualified for standard -04/PQ variant; the -04E/PQ automotive temperature grade variant may require additional qualification review.
