PIC16C65A-10/L - 8-Bit 10MHz OTP MCU 7KB | Microchip
N.º da peça: PIC16C65A-10/L ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $14.86 | $14,86 |
| 10 | $13.5 | $135,00 |
| 100 | $11.95 | $1.195,00 |
| 500 | $10.4 | $5.200,00 |
| 1.000 | $9.2 | $9.200,00 |
PIC16C65A-10/L Visão geral
What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller contains program memory that can be written once during programming and cannot be erased or rewritten, making it well suited for volume production where firmware is stable and final. The PIC16C65A is part of the broader 8-bit MCU category, sitting within the PIC family hierarchy of PIC16C -> PIC16 -> PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded processor. The 'C' in PIC16C denotes CMOS EPROM technology, distinguishing it from later flash-based PIC16F variants.
Key features include only 35 single-word instructions to learn, all single-cycle except program branches which are two cycles, a wide operating voltage range up to 6.0 V, and low power consumption of typically 15 uA at 5 V and 4 MHz, dropping to 1 uA at 3 V and 32 kHz. The device provides 33 digital I/O pins organized across multiple ports, three timer/counter modules, a synchronous serial port (SSP) supporting SPI and I2C, and a USART for asynchronous serial communication, enabling rich peripheral integration without external components.
The PIC16C65A architecture features a 14-bit instruction word, 8-bit data path, and a hardware multiplier-free ALU optimized for byte-level bit manipulation. Its fully-static CMOS design allows the clock to be stopped without losing register state, useful for power-sensitive applications. The device also integrates a watchdog timer with its own on-chip RC oscillator for reliable operation, brown-out reset protection, and power-on reset circuitry.
Typical applications include industrial automation and control, motor control (BLDC, stepper), embedded instrumentation with serial display interfaces, automotive body electronics, HVAC controllers, security and access systems, and general-purpose 8-bit embedded control in commercial and consumer products. Its 33 I/O pins provide ample connectivity for keypads, displays, sensors, and actuators.
When designing with the PIC16C65A-10/L, consider that OTP memory is one-time-programmable and cannot be field-updated - use a flash-based PIC16F equivalent during prototyping. The /L suffix indicates the PLCC-44 package; ensure your PCB footprint matches JEDEC PLCC-44 with 1.27 mm pin pitch and J-lead terminations.
This page synthesizes distributor pricing, drop-in PIC16C65A alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas drop-in para PIC16C65A-10/L — 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-10/L (mesmo formato e footprint) — diferindo em Maximum Clock Frequency, Package, Program Memory Size, Program Memory Type, Core.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16C65A-10E/L
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16C65A-04/L
✅ Drop-In✓ Em estoque
$9.2 / unidade
Ver ficha técnica →PIC16C65A-04I/L
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16C65A-04E/L
✅ Drop-In✓ Em estoque
$11.2 / unidade
Ver ficha técnica →PIC16C65A-10/L Classificações máximas e características elétricas
| Core | PIC16 8-bit RISC |
| Bit Width | 8-bit |
| Frequência máxima de clock | 10 MHz |
| Instruction Set | 35 single-word instructions |
| Program Memory Type | OTP (One-Time-Programmable EPROM) |
| Program Memory Size | 7 KB (4K x 14) |
| RAM Size | 192 bytes |
| Number of I/O Pins | 33 |
| Operating Voltage Range | 2.5 V to 6.0 V |
| Supply Voltage (Nominal) | 5 V |
| Active Current (5V, 4MHz) | 15 uA typical |
| Sleep Current (3V, 32kHz) | 1 uA typical |
| Encapsulamento | 44-pin PLCC (J-Lead, 16.59 x 16.59 mm) |
| Tipo de montagem | Surface Mount |
| Faixa de temperatura de operação | 0C to +70C (commercial) |
| Number of Timers | 3 |
| Communication Interfaces | USART, SSP (SPI/I2C) |
| Watchdog Timer | Yes (with on-chip RC oscillator) |
Configuração de pinos do PIC16C65A-10/L
| Pino 1 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| Pino 2 | RA3/AN3 — PORTA bit 3 / Analog input 3 |
| Pino 3 | RA4/T0CKI — PORTA bit 4 / Timer 0 clock input |
| Pino 4 | RA5/SS — PORTA bit 5 / SSP slave select |
| Pino 5 | RE0/RD — PORTE bit 0 / Read control for PSP |
| Pino 6 | RE1/WR — PORTE bit 1 / Write control for PSP |
| Pino 7 | RE2/CS — PORTE bit 2 / Chip select for PSP |
| Pino 8 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| Pino 9 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| Pino 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer 1 oscillator out / clock in |
| Pino 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer 1 oscillator in / CCP2 |
| Pino 12 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| Pino 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pino 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pino 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pino 16 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Pino 17 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Pino 18 | MCLR/VPP — Master clear reset / programming voltage |
| Pino 19 | RB0/INT — PORTB bit 0 / external interrupt |
| Pino 20 | RB1 — PORTB bit 1 |
| Pino 21 | RB2 — PORTB bit 2 |
| Pino 22 | RB3 — PORTB bit 3 |
| Pino 23 | RB4 — PORTB bit 4 |
| Pino 24 | RB5 — PORTB bit 5 |
| Pino 25 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pino 26 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pino 27 | VSS — Ground reference |
| Pino 28 | VDD — Positive supply (5V typical) |
| Pino 29 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| Pino 30 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| Pino 31 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| Pino 32 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| Pino 33 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| Pino 34 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| Pino 35 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| Pino 36 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| Pino 37 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Pino 38 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Pino 39 | VSS — Ground reference |
| Pino 40 | VDD — Positive supply (5V typical) |
| 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-10/L é adequado para 7 aplicaçãos: Industrial Automation Controllers, Motor Control and PWM Drives, Embedded Instrumentation with Serial Display, Automotive Body Electronics, Security and Access Control Systems, HVAC and Building Climate Controllers, General-Purpose 8-bit Embedded Control.
Industrial Automation Controllers
The PIC16C65A-10/L fits industrial automation controllers thanks to its 33 digital I/O pins and 10 MHz core that can directly drive relays, solenoids, opto-isolators, and discrete sensor inputs without external logic. Its three on-chip timers handle PWM-driven motor valves, conveyor sequencing, and quadrature decoding for shaft-position feedback. The integrated USART (RS-232/RS-485) links the controller to a PLC backplane or HMI panel, while the SSP (SPI/I2C) talks to EEPROM parameter storage and digital temperature/humidity sensors. The device's 7 KB OTP program memory holds fixed ladder-logic-style sequences after final validation. Note that the commercial 0C-70C range limits it to cabinet-mounted equipment; for plant-floor extremes choose the PIC16C65A-10E/L drop-in variant.
Recomendado
Motor Control and PWM Drives
The PIC16C65A-10/L is suitable for low-power DC motor, stepper, and small BLDC control, where its three timer/counter modules generate multiple PWM channels simultaneously. The 10 MHz instruction rate yields 100 ns tick resolution at the timer prescaler, supporting 20 kHz PWM frequencies with 8-bit duty control - sufficient for small fans, vibratory feeders, and educational robotics. Its 33 I/O pins accept quadrature encoder inputs (QEI via timer capture) and drive H-bridge gate signals directly. Brown-out reset and watchdog timer features protect against stall-induced supply dips. For new designs prefer the flash-based PIC16F877A; the PIC16C65A-10/L remains valid only when migrating existing OTP firmware to identical silicon.
Recomendado
Embedded Instrumentation with Serial Display
The PIC16C65A-10/L's USART and SSP peripherals make it a practical choice for bench instruments such as digital panel meters, hand-held multimeters, and laboratory data loggers that stream readings to a host PC or LCD. Its 192-byte RAM buffers a few hundred 10-bit ADC samples before batch transmission, and the 10 MHz core executes the ADC averaging loop with margin. SPI directly drives character or graphic LCDs without external shift registers, freeing I/O for keypad scanning. Low sleep current (1 uA typical at 3V/32 kHz) suits battery-powered data loggers that wake periodically. The PLCC-44 footprint also makes the device socketable for easy field replacement in service.
Recomendado
Automotive Body Electronics
The PIC16C65A-10E/L variant (extended -40C to +125C) of this OTP MCU is appropriate for non-safety automotive body modules such as interior lighting controllers, seat-position memory, mirror adjusters, and HVAC blend-door actuators. The 33 I/O lines read switch matrices and drive power MOSFETs or relay coils for the loads, while the USART interfaces to the body control module (BCM) via LIN or ISO 9141 transceivers. The 7 KB OTP memory holds fixed calibration tables for motor end-stop detection. The PIC16C65A-10/L (commercial temp range) is NOT suitable for under-hood automotive applications - use the -E grade instead. Note that AEC-Q100 qualification is not specified for OTP PIC16C devices; safety-critical applications require modern Q100-qualified parts.
Recomendado
Security and Access Control Systems
The PIC16C65A-10/L is a practical MCU for keypad door controllers, RFID reader interfaces, and simple alarm panels where its 33 I/O pins scan 4x4 keypads, drive piezo buzzers, and switch relay outputs to door strikes. The SSP (I2C) reads timekeeping from a real-time clock IC, while the USART interfaces to external RFID readers or to a central monitoring station via RS-485. OTP memory is acceptable for security devices where firmware is locked after certification. Watchdog timer and brown-out reset features guard against code lockup and supply glitches. Designers should consider that modern secure-access systems increasingly require cryptographic accelerators and firmware update capability, making a flash PIC18F or PIC24F successor more future-proof.
Recomendado
HVAC and Building Climate Controllers
The PIC16C65A-10/L's PWM timers, ADC support (via external ADC if needed), and serial interfaces make it suitable for residential and light-commercial HVAC zone controllers, damper actuators, and thermostat products. Three timers drive multiple PWM outputs to control fan speeds and valve positions simultaneously, while the USART links to a wall-mounted display or central building management system. The 5 V supply and 15 uA active current keep power consumption modest for always-on climate equipment. The OTP memory prevents accidental field firmware tampering. For new climate-control designs prefer the PIC16F877A or PIC18F4520, which add on-chip ADC, more PWM channels, and flash reprogrammability for firmware updates.
Recomendado
General-Purpose 8-bit Embedded Control
The PIC16C65A-10/L serves as a flexible general-purpose 8-bit controller for commercial and consumer products where its 33 I/O lines, three timers, USART, and SSP provide ample peripheral integration without external logic. The 10 MHz instruction cycle supports typical 50-100 kHz control loops for sensors and actuators, and the 7 KB OTP memory holds fixed application firmware for cost-sensitive production volumes. Typical uses include vending machine controllers, exercise equipment consoles, appliance user interfaces, and educational development platforms. Designers should note that the obsolete status means new designs should target flash-based PIC16F or PIC18F equivalents; the PIC16C65A-10/L remains in scope only for legacy board replacements or existing production runs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16C65A-10/L — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16C65A-10E/L | PIC16C65A-04/L | PIC16C65A-04I/L | PIC16C65A-04E/L |
|---|---|---|---|---|---|
| Package | 44-pin PLCC (J-Lead) | 44-pin PLCC (J-Lead) - same | 44-pin PLCC (J-Lead) - same | 44-pin PLCC (J-Lead) - same | 44-pin PLCC (J-Lead) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Frequency | 10 MHz | 10 MHz (same) | 4 MHz (-60%) | 4 MHz (-60%) | 4 MHz (-60%) |
| Program Memory | 7 KB OTP | 7 KB OTP (same) | 7 KB OTP (same) | 7 KB OTP (same) | 7 KB OTP (same) |
| RAM Size | 192 bytes | 192 bytes (same) | 192 bytes (same) | 192 bytes (same) | 192 bytes (same) |
| Number of I/O Pins | 33 | 33 (same) | 33 (same) | 33 (same) | 33 (same) |
| Operating Temperature Range | 0C to +70C (commercial) | -40C to +125C (extended) | 0C to +70C (commercial) | -40C to +85C (industrial) | -40C to +125C (extended) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Principais diferenciais
- Higher 10 MHz clock speed grade versus the -04 variants (vs PIC16C65A-04/L)
- Commercial temperature grade matches standard indoor use cases (vs PIC16C65A-10E/L)
- Largest OTP code space in the PIC16C6X family at this speed grade (vs PIC16C63A-10E/L)
Notas de projeto
The PIC16C65A-10/L uses OTP (One-Time-Programmable) EPROM and CANNOT be reprogrammed or erased after the initial write. Any firmware bug discovered after programming requires physical replacement of the device. Use a flash-based PIC16F equivalent (e.g. PIC16F877A) during prototyping, and only commit to OTP PIC16C65A for final production runs where firmware is fully validated. OTP programming requires a high-voltage VPP supply (typically 13V) applied to the MCLR/VPP pin during device programming - verify your programmer supports the PIC16C6X family.
Decouple the two VDD pins (28 and 40) and VSS pins (27 and 39) of the 44-pin PLCC package with a 100 nF ceramic capacitor placed within 5 mm of each pin pair. The PIC16C65A-10/L draws 15 uA typical active current at 5V/4 MHz but transient switching currents can reach tens of milliamps; insufficient decoupling causes erratic code execution especially on the analog-intensive PORTA pins. Add a 10 uF bulk electrolytic or tantalum capacitor at the board power entry. The MCLR reset pin must be tied to VDD through a 10 kohm pull-up with a 100 nF capacitor to VSS for proper power-on reset timing.
The PIC16C65A-10/L is specified for the commercial 0C to +70C range; the -10E/L variant extends this to -40C to +125C for industrial and automotive applications. Designers must select the correct temperature grade at order time - the commercial part will fail or exhibit timing drift outside its specified range. Note that OTP PIC16C devices are NOT AEC-Q100 qualified, so they are unsuitable for safety-critical automotive applications such as airbag controllers, ABS, or electronic stability control - even the -E grade. Use AEC-Q100-qualified PIC16F or PIC18F successors for safety-critical systems.
The 44-pin PLCC (Plastic Leaded Chip Carrier) J-Lead package has a 1.27 mm pin pitch and a body size of 16.59 x 16.59 mm per the Microchip package drawing. The PLCC-44 footprint requires J-leads that curl under the package body, with land pads extending slightly inward from the package outline. If socketed, use a low-profile PLCC-44 through-hole socket (e.g. 3M 8444-21B1-RK-TP) to allow easy field replacement. Maintain at least 2 mm clearance between the PLCC outline and adjacent components to allow for socket walls and rework access.
Informações de conformidade
RoHS, REACH, lead-free, halogen-free, and conflict-mineral status not explicitly stated in the verified web data for the legacy PIC16C OTP family; marked as unknown. The PIC16C65A-10/L is NOT AEC-Q100 qualified - automotive safety-critical applications require qualified successors.
