PIC16C65A-10I/PQ - 8-bit RISC MCU, 7KB OTP, 44-MQFP | Microchip
料号： PIC16C65A-10I/PQ ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.2 | $8.20 |
| 10 | $7.45 | $74.50 |
| 100 | $6.62 | $662.00 |
| 500 | $5.95 | $2,975.00 |
| 1,000 | $5.2 | $5,200.00 |
PIC16C65A-10I/PQ 概述
A PIC microcontroller is a compact, Harvard-architecture microcontroller that integrates a CPU, program memory, RAM, and peripheral peripherals into a single chip. PIC16C6X devices sit in the mid-tier of Microchip's 8-bit portfolio (PIC16 -> PIC microcontroller -> microcontroller -> embedded processor -> semiconductor), optimized for cost-sensitive industrial and embedded applications that need deterministic interrupt response and low power consumption rather than raw compute throughput.
Key features of the PIC16C65A-10I/PQ include a RISC CPU with 35 single-word instructions, fully static design supporting DC to 10 MHz clock input, and wide operating voltage range typical of 2.5V to 6.0V. The 7 KB OTP program memory and 192-byte RAM are sized for moderate firmware complexity (control loops, protocol stacks, sensor interfacing). Industrial-grade -40C to +85C qualification, in-circuit serial programming capability, and a 44-pin MQFP footprint ease PCB integration in legacy and new industrial designs.
The device uses CMOS EPROM/ROM technology, fully static logic, and a 14-bit instruction word. Low-power performance is characterized as <15 mA typical at 5V/4 MHz and <1 mA typical at 3V/32 kHz. Watchdog, power-on reset, brown-out detect, and code-protect features contribute to system robustness. Interrupts, a hardware USART, and capture/compare PWM blocks support motor control, instrumentation, and human-interface subsystems.
Typical applications include industrial automation controllers, motor and solenoid drive control boards, instrumentation front-ends with serial communication to a host, and embedded sensor nodes using I2C/SPI. The 44-MQFP package and industrial temperature range also suit legacy replacement, factory automation, and harsh-environment monitoring designs.
When designing with this part, plan OTP programming before final PCB assembly: OTP cannot be erased, so firmware must be validated on windowed or flash siblings first. The 44-pin footprint, 5V typical supply, and classic PIC16C6X peripherals make direct migration to PIC16F87X or PIC18 devices straightforward when more memory or in-system reprogrammability is needed.
This page synthesizes distributor stock, parametric data, drop-in same-brand alternatives, and design considerations not consolidated in the legacy datasheet, helping engineers and buyers accelerate sourcing and PCB redesign decisions.
直接替换替代料： PIC16C65A-10I/PQ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16C65A-10I/PQ （相同外形与封装尺寸） ——差异在于 Program Memory Size, Core Architecture, Package, Operating Temperature Range, Program Memory Type.
快速对比工具——选择替代料号进行并排对比：
PIC16C65A-10/PQ
✅ 直接替换✓ 有现货
$6.1 / 个
查看数据手册 →PIC16C65A-04/PQ
✅ 直接替换✓ 有现货
$6.2 / 个
查看数据手册 →PIC16C64A-10I/PQ
✅ 直接替换📋 参考替代料（不在目录中）
PIC16C64A-20I/PQ
✅ 直接替换✓ 有现货
$12.2 / 个
查看数据手册 →PIC16C64AT-20I/PQ
✅ 直接替换✓ 有现货
$5.7 / 个
查看数据手册 →PIC16C64AT-10E/PQ
✅ 直接替换✓ 有现货
$5.2 / 个
查看数据手册 →PIC16C64AT-04/PQ
✅ 直接替换✓ 有现货
$7.1 / 个
查看数据手册 →PIC16C65A-10I/PQ 最大额定值与电气特性
| Family | PIC16C6X |
| Core Architecture | 8-bit RISC |
| Instruction Set | 35 single-word instructions |
| 最大时钟频率 | 10 MHz |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 7 KB (4096 words x 14-bit) |
| Data RAM | 192 bytes |
| Operating Voltage Range | 2.5 V to 6.0 V (typical) |
| Supply Voltage (Nominal) | 5.0 V |
| Active Current at 5V/4 MHz | <15 mA typical |
| Sleep Current at 3V/32 kHz | <1 mA typical |
| Serial Interfaces | I2C, SPI, USART |
| Timers | 3 |
| PWM Channels | 2 |
| Watchdog Timer | Yes |
| 工作温度范围 | -40C to +85C (Industrial) |
| 封装 | 44-pin MQFP (PQ) |
| 安装类型 | Surface Mount |
| Lead / Terminal Form | Gull Wing |
| MSL 等级 | 3 |
PIC16C65A-10I/PQ 引脚配置
| 引脚 1 | OSC1/CLKIN — Oscillator crystal input or external clock input |
| 引脚 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| 引脚 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| 引脚 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| 引脚 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / Voltage reference |
| 引脚 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| 引脚 7 | RA5/SS/AN4 — PORTA bit 5 / SPI slave select / Analog input 4 |
| 引脚 8 | RE0/RD/AN5 — PORTE bit 0 / Read control / Analog input 5 |
| 引脚 9 | RE1/WR/AN6 — PORTE bit 1 / Write control / Analog input 6 |
| 引脚 10 | RE2/CS/AN7 — PORTE bit 2 / Chip select / Analog input 7 |
| 引脚 11 | VDD — Positive supply voltage |
| 引脚 12 | VSS — Ground reference |
| 引脚 13 | OSC2/CLKOUT — Oscillator crystal output / Clock output |
| 引脚 14 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| 引脚 15 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 I/O |
| 引脚 16 | RC2/CCP1 — PORTC bit 2 / CCP1 I/O (PWM output) |
| 引脚 17 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| 引脚 18 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| 引脚 19 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| 引脚 20 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| 引脚 21 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| 引脚 22 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| 引脚 23 | RC5/SDO — PORTC bit 5 / SPI data out |
| 引脚 24 | RC6/TX/CK — PORTC bit 6 / USART async transmit / sync clock |
| 引脚 25 | RC7/RX/DT — PORTC bit 7 / USART async receive / sync data |
| 引脚 26 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| 引脚 27 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| 引脚 28 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| 引脚 29 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| 引脚 30 | VSS — Ground reference |
| 引脚 31 | VDD — Positive supply voltage |
| 引脚 32 | RB0/INT — PORTB bit 0 / External interrupt |
| 引脚 33 | RB1 — PORTB bit 1 |
| 引脚 34 | RB2 — PORTB bit 2 |
| 引脚 35 | RB3/PGM — PORTB bit 3 / Low-voltage programming input |
| 引脚 36 | RB4 — PORTB bit 4 |
| 引脚 37 | RB5 — PORTB bit 5 |
| 引脚 38 | RB6/PGC — PORTB bit 6 / ICSP clock input |
| 引脚 39 | RB7/PGD — PORTB bit 7 / ICSP data I/O |
| 引脚 40 | MCLR/VPP — Master clear reset / Programming voltage input |
| 引脚 41 | NC — Not connected (per datasheet) |
| 引脚 42 | NC — Not connected (per datasheet) |
| 引脚 43 | NC — Not connected (per datasheet) |
| 引脚 44 | NC — Not connected (per datasheet) |
典型应用
PIC16C65A-10I/PQ 适用于 6 应用s: Industrial Automation Controller, Motor Control and PWM Drive Board, Instrumentation Front-End with Serial Host, Embedded Sensor Node, Human-Machine Interface (HMI) Controller, Legacy Industrial Board Drop-In Replacement.
Industrial Automation Controller
The PIC16C65A-10I/PQ fits industrial automation controllers because its 8-bit RISC core with 35 single-word instructions delivers deterministic execution and fast interrupt response required for real-time control loops. The 7 KB program memory accommodates ladder-logic-equivalent state machines, PID control routines, and serial protocol stacks for Modbus or proprietary fieldbus. Three timers and two PWM channels support motor speed control, solenoid drive timing, and encoder feedback decoding without external counters. The 10 MHz clock gives 100 ns instruction cycle, sufficient for sampling rates up to several kHz. USART, SPI, and I2C peripherals let the MCU interface to digital sensors, HMI displays, and host PLCs. Industrial -40C to +85C rating plus the 44-MQFP footprint with gull-wing leads ensure reliable operation on factory-floor PCBs subject to vibration and thermal cycling.
推荐
Motor Control and PWM Drive Board
The PIC16C65A-10I/PQ suits motor control boards because its two PWM channels and three timers provide the hardware building blocks for brushed DC, stepper, or BLDC commutation without external PWM ICs. The Capture/Compare/PWM (CCP) module generates precise PWM with 10-bit resolution at the 10 MHz clock, supporting variable-frequency drives and soft-start ramps. The 192-byte RAM holds commutation tables, current-loop state, and encoder counters. Industrial temperature rating enables under-hood or cabinet-mounted operation. The 44-MQFP package with 33+ I/O pins gives enough headroom for direction logic, brake signals, fault inputs, and current-sense ADC channels. Designers should plan for OTP programming prior to volume assembly since OTP cannot be erased.
推荐
Instrumentation Front-End with Serial Host
The PIC16C65A-10I/PQ serves instrumentation front-ends because the integrated USART, SPI, and I2C peripherals connect directly to ADCs, DACs, EEPROMs, and host computers without external glue logic. The 7 KB OTP stores calibration coefficients, linearization tables, and command parsers. The 192-byte RAM supports small acquisition buffers and ring buffers for serial streams. At 5V/4 MHz the part draws <15 mA typical, making it suitable for line-powered laboratory instruments. The 10 MHz headroom handles protocol bit-banging fallback for legacy peripherals. Industrial -40C to +85C qualification ensures operation in unheated equipment rooms or outdoor enclosures. Engineers can use the USART for RS-232/RS-485 communication with a host PC.
推荐
Embedded Sensor Node
The PIC16C65A-10I/PQ supports embedded sensor nodes because its low-power CMOS design draws <1 mA at 3V/32 kHz, enabling battery or energy-harvested operation. The 7 KB OTP holds sensor drivers, threshold detection, and transmit scheduling. Watchdog timer plus brown-out reset provide unattended reliability. I2C and SPI interfaces connect to temperature, pressure, and humidity sensors with no external bus controllers. USART links to wireless modems or wired fieldbus. Industrial -40C to +85C rating lets the node operate in outdoor enclosures. The 10 MHz clock supports protocol timing when waking for transmissions, while sleep current in the microamp range extends battery life between wake events.
推荐
Human-Machine Interface (HMI) Controller
The PIC16C65A-10I/PQ drives HMI subsystems because the 33+ digital I/O pins of the 44-MQFP package scan key matrices, drive LED or LCD displays, and read rotary encoders without external I/O expanders. The 192-byte RAM holds key debounce state, display refresh buffers, and menu state machines. PWM channels generate backlight dimming and buzzer tones. USART or SPI connects to a graphics controller or host processor. Industrial temperature rating supports factory-floor panels and outdoor kiosks. Designers can use the CCP module to drive LED brightness or haptic feedback with 10-bit resolution at the 10 MHz clock, enabling smooth visual transitions in user interfaces.
推荐
Legacy Industrial Board Drop-In Replacement
The PIC16C65A-10I/PQ functions as a same-footprint replacement for legacy PIC16C65B-10I/PQ and PIC16C65-10I/PQ boards because the silicon is fully register-compatible with the PIC16C6X family. Existing firmware, MPLAB toolchains, and programmers (PICSTART Plus, MPLAB PM3) work without modification. The 44-MQFP land pattern matches previous generations, allowing direct PCB substitution. Industrial -40C to +85C qualification matches the temperature profiles of older industrial equipment. 7 KB OTP and 192-byte RAM match prior memory maps. Designers replacing end-of-life boards should confirm oscillator type (RC vs crystal vs HS) and verify the new OTP blank parts program identically to the previous-generation silicon.
推荐
推荐产品汇总
工程参考数据： PIC16C65A-10I/PQ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16C65A-10/PQ | PIC16C65A-04/PQ | PIC16C64A-10I/PQ | PIC16C64A-20I/PQ |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-MQFP (PQ) | 44-MQFP (PQ) - same | 44-MQFP (PQ) - same | 44-MQFP (PQ) - same | 44-MQFP (PQ) - same |
| Max Clock Frequency | 10 MHz | 10 MHz | 4 MHz | 10 MHz | 20 MHz |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 3.5 KB OTP | 3.5 KB OTP |
| Data RAM | 192 bytes | 192 bytes | 192 bytes | 128 bytes | 128 bytes |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Serial Interfaces | I2C, SPI, USART | I2C, SPI, USART | I2C, SPI, USART | I2C, SPI, USART | I2C, SPI, USART |
| PWM Channels | 2 (CCP1, CCP2) | 2 | 2 | 1 | 1 |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
关键差异点
- Larger memory than PIC16C64A family （对比 PIC16C64A-10I/PQ)
- Industrial temperature range as standard （对比 PIC16C65A-10/PQ)
- Higher-speed tier over 04 variants （对比 PIC16C65A-04/PQ)
- Two PWM channels vs 64 family's one （对比 PIC16C64A-10I/PQ)
设计说明
OTP (One-Time Programmable) memory cannot be erased or rewritten. Any code bug discovered after programming requires discarding the silicon. Always validate firmware on windowed UV-erasable PIC16C65A or flash-based PIC16F877A siblings first. Pre-production verification of oscillator, watchdog, brown-out, and code-protect settings is mandatory to avoid scrapping programmed parts.
Place the 44-MQFP decoupling capacitor pair (100 nF ceramic + 10 uF tantalum or electrolytic) within 5 mm of the VDD/VSS pins, with short, wide traces to minimize supply noise. The MQFP exposed pad (die-attach paddle) should be soldered to a grounded copper pour for thermal dissipation and supply noise immunity - do not leave it floating.
Estimated: at 5V supply and 10 MHz clock with all peripherals active, the PIC16C65A draws around 15 mA typical and up to 25 mA worst case. Ensure the LDO or switching regulator supplying VDD can source at least 50 mA peak with adequate headroom. Place a bulk capacitor (>=22 uF) near the IC to support inrush during PWM or USART transmission bursts.
The MCLR/VPP pin must have a 10 kohm pull-up to VDD to keep the device out of reset during normal operation, plus a 0.1 uF capacitor to ground for noise filtering. ICSP programming requires isolation resistors on PGC/PGD if these pins share traces with other circuitry - this prevents contention during in-circuit programming.
The 44-MQFP package has a thermal resistance theta_JA of approximately 50 C/W. At 25 mA and 5V the dissipation is 125 mW, leading to a 6C junction rise above ambient - well within the industrial -40C to +85C rating. No heatsink is required, but PCB copper pours under the package help reduce die temperature in sealed enclosures.
合规信息
Lead-free (Pb-free) finish indicated by Microchip product page. RoHS compliance status for the PQ package variant was not retrievable from the verified web data and is marked [DATA_NEEDED]. REACH compliance stated by Microchip. AEC-Q100 not applicable for non-automotive MCU. The PIC16C65A is NRND - check Microchip PCN history for the latest compliance and material declaration information.
