PIC16C65A-10I/PQ - 8-bit RISC MCU, 7KB OTP, 44-MQFP | Microchip
N.º da peça: PIC16C65A-10I/PQ ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 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 Visão geral
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.
Alternativas drop-in para PIC16C65A-10I/PQ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16C65A-10I/PQ (mesmo formato e footprint) — diferindo em Program Memory Size, Core Architecture, Package, Operating Temperature Range, Program Memory Type.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16C65A-10/PQ
✅ Drop-In✓ Em estoque
$6.1 / unidade
Ver ficha técnica →PIC16C65A-04/PQ
✅ Drop-In✓ Em estoque
$6.2 / unidade
Ver ficha técnica →PIC16C64A-10I/PQ
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16C64A-20I/PQ
✅ Drop-In✓ Em estoque
$12.2 / unidade
Ver ficha técnica →PIC16C64AT-20I/PQ
✅ Drop-In✓ Em estoque
$5.7 / unidade
Ver ficha técnica →PIC16C64AT-10E/PQ
✅ Drop-In✓ Em estoque
$5.2 / unidade
Ver ficha técnica →PIC16C64AT-04/PQ
✅ Drop-In✓ Em estoque
$7.1 / unidade
Ver ficha técnica →PIC16C65A-10I/PQ Classificações máximas e características elétricas
| Family | PIC16C6X |
| Core Architecture | 8-bit RISC |
| Instruction Set | 35 single-word instructions |
| Frequência máxima de clock | 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 |
| Faixa de temperatura de operação | -40C to +85C (Industrial) |
| Encapsulamento | 44-pin MQFP (PQ) |
| Tipo de montagem | Surface Mount |
| Lead / Terminal Form | Gull Wing |
| Nível MSL | 3 |
Configuração de pinos do PIC16C65A-10I/PQ
| Pino 1 | OSC1/CLKIN — Oscillator crystal input or external clock input |
| Pino 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Pino 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Pino 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| Pino 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / Voltage reference |
| Pino 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pino 7 | RA5/SS/AN4 — PORTA bit 5 / SPI slave select / Analog input 4 |
| Pino 8 | RE0/RD/AN5 — PORTE bit 0 / Read control / Analog input 5 |
| Pino 9 | RE1/WR/AN6 — PORTE bit 1 / Write control / Analog input 6 |
| Pino 10 | RE2/CS/AN7 — PORTE bit 2 / Chip select / Analog input 7 |
| Pino 11 | VDD — Positive supply voltage |
| Pino 12 | VSS — Ground reference |
| Pino 13 | OSC2/CLKOUT — Oscillator crystal output / Clock output |
| Pino 14 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Pino 15 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 I/O |
| Pino 16 | RC2/CCP1 — PORTC bit 2 / CCP1 I/O (PWM output) |
| Pino 17 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pino 18 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| Pino 19 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| Pino 20 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| Pino 21 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| Pino 22 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pino 23 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pino 24 | RC6/TX/CK — PORTC bit 6 / USART async transmit / sync clock |
| Pino 25 | RC7/RX/DT — PORTC bit 7 / USART async receive / sync data |
| Pino 26 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| Pino 27 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| Pino 28 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| Pino 29 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| Pino 30 | VSS — Ground reference |
| Pino 31 | VDD — Positive supply voltage |
| Pino 32 | RB0/INT — PORTB bit 0 / External interrupt |
| Pino 33 | RB1 — PORTB bit 1 |
| Pino 34 | RB2 — PORTB bit 2 |
| Pino 35 | RB3/PGM — PORTB bit 3 / Low-voltage programming input |
| Pino 36 | RB4 — PORTB bit 4 |
| Pino 37 | RB5 — PORTB bit 5 |
| Pino 38 | RB6/PGC — PORTB bit 6 / ICSP clock input |
| Pino 39 | RB7/PGD — PORTB bit 7 / ICSP data I/O |
| Pino 40 | MCLR/VPP — Master clear reset / Programming voltage input |
| Pino 41 | NC — Not connected (per datasheet) |
| Pino 42 | NC — Not connected (per datasheet) |
| Pino 43 | NC — Not connected (per datasheet) |
| Pino 44 | NC — Not connected (per datasheet) |
Aplicações típicas
PIC16C65A-10I/PQ é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16C65A-10I/PQ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Larger memory than PIC16C64A family (vs PIC16C64A-10I/PQ)
- Industrial temperature range as standard (vs PIC16C65A-10/PQ)
- Higher-speed tier over 04 variants (vs PIC16C65A-04/PQ)
- Two PWM channels vs 64 family's one (vs PIC16C64A-10I/PQ)
Notas de projeto
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.
Informações de conformidade
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.
