PIC16C65A-04/L - 8-bit 4MHz 7KB OTP MCU 44-PLCC | Microchip
MPN: PIC16C65A-04/L ✗ اختتامِ زندگیPIC16C65A-04/L جائزہ
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, and peripheral interfaces on one die. The PIC16C65A-04/L belongs to the 8-bit MCU -> microcontroller -> embedded controller -> semiconductor hierarchy, sitting within Microchip's classic mid-range PIC16 architecture widely used in industrial control and embedded designs.
Key features include 35 single-word instructions (most executing in one instruction cycle, with branches in two), a wide operating voltage range, and low power consumption: 5 mA typical at 5 V/4 MHz and 15 uA typical at 3 V/32 kHz. The fully static design allows the clock to be stopped without losing register state, and the device supports commercial, industrial, and extended temperature ranges. The integrated peripherals include timers, an 8-bit A/D converter, USART, and capture/compare/PWM modules.
Architecturally, the PIC16C65A-04/L uses a Harvard-style RISC core with separated program and data buses, enabling simultaneous instruction fetch and operand access. The 14-bit wide program memory word yields more efficient instruction encoding than 8-bit CISC cores, and the OTP EPROM process technology allows one-time factory or in-circuit programming using a standard device programmer.
Typical applications include industrial automation controllers, motor control subsystems, automotive body electronics, smart sensor interfaces, and embedded data acquisition systems. The 33 I/O lines and integrated peripherals make it well suited to medium-complexity embedded designs that need deterministic real-time response.
When designing with this MCU, ensure decoupling capacitors are placed within 5 mm of VDD pins and that unused I/O pins are configured as outputs to minimize current consumption. OTP parts cannot be re-programmed in-circuit; choose a flash-based PIC16F equivalent if firmware revision cycles are anticipated.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the PIC16C65A-04/L that are not aggregated on the manufacturer datasheet alone.
کے لیے ڈراپ اِن متبادل PIC16C65A-04/L — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16C65A-04/L (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Program Memory Type, Maximum Clock Frequency, ADC, Core Architecture.
PIC16C65A-04I/L
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C65A-04E/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65AT-04/L
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C65A-10/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C66-04/L
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C65A-04/L زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | 8-bit PIC RISC |
| Instruction Set | 35 single-word instructions |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 7 KB (4K x 14) |
| RAM | 192 bytes |
| زیادہ سے زیادہ کلاک فریکوئنسی | 4 MHz |
| Operating Voltage Range | 2.5 V to 6.0 V |
| Number of I/O Pins | 33 |
| ADC | 8-bit, integrated |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Communication | USART (SCI/SPI) |
| PWM Modules | Yes (CCP) |
| پیکیج | 44-pin PLCC (J-Lead, 16.59 x 16.59 mm) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| آپریٹنگ درجہ حرارت | 0C to +70C (commercial) |
| Power Consumption (sleep, 3V/32kHz) | 15 uA typical |
PIC16C65A-04/L پن کنفیگریشن
| پن 1 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| پن 2 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC positive reference |
| پن 3 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| پن 4 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| پن 5 | RE0/RD/AN5 — PORTE bit 0 / Parallel slave port read / Analog input 5 |
| پن 6 | RE1/WR/AN6 — PORTE bit 1 / Parallel slave port write / Analog input 6 |
| پن 7 | RE2/CS/AN7 — PORTE bit 2 / Parallel slave port chip select / Analog input 7 |
| پن 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| پن 9 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| پن 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| پن 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 I/O |
| پن 12 | RC2/CCP1 — PORTC bit 2 / CCP1 (PWM/capture/compare) I/O |
| پن 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| پن 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| پن 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| پن 16 | RC6/TX/CK — PORTC bit 6 / USART async transmit / clock |
| پن 17 | RC7/RX/DT — PORTC bit 7 / USART async receive / data |
| پن 18 | GND — Logic and I/O ground reference |
| پن 19 | VDD — Positive logic supply (2.5 V to 6.0 V) |
| پن 20 | RB0/INT — PORTB bit 0 / External interrupt input |
| پن 21 | RB1 — PORTB bit 1 |
| پن 22 | RB2 — PORTB bit 2 |
| پن 23 | RB3/PGM — PORTB bit 3 / Low-voltage programming input |
| پن 24 | RB4 — PORTB bit 4 |
| پن 25 | RB5 — PORTB bit 5 |
| پن 26 | RB6/PGC — PORTB bit 6 / ICSP clock |
| پن 27 | RB7/PGD — PORTB bit 7 / ICSP data |
| پن 28 | MCLR/VPP — Master clear reset / programming voltage input |
| پن 29 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| پن 30 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| پن 31 | GND — Ground reference |
| پن 32 | RD0 — PORTD bit 0 |
| پن 33 | RD1 — PORTD bit 1 |
| پن 34 | RD2 — PORTD bit 2 |
| پن 35 | RD3 — PORTD bit 3 |
| پن 36 | RD4 — PORTD bit 4 |
| پن 37 | RD5 — PORTD bit 5 |
| پن 38 | RD6 — PORTD bit 6 |
| پن 39 | RD7 — PORTD bit 7 |
| پن 40 | VSS — Ground reference (PLCC pin 40 per Microchip pinout) |
| پن 41 | NC — Not connected (per datasheet) |
| پن 42 | NC — Not connected (per datasheet) |
| پن 43 | NC — Not connected (per datasheet) |
| پن 44 | NC — Not connected (per datasheet) |
عام استعمالات
PIC16C65A-04/L کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Automation Controllers, Motor Control Subsystems, Automotive Body Electronics, Smart Sensor Interfaces, Embedded Data Acquisition Systems, Consumer Appliance Control Boards.
Industrial Automation Controllers
The PIC16C65A-04/L fits industrial automation controllers because its 33 digital I/O pins interface directly to relays, optocouplers, and sensor arrays without external glue logic. The 4 MHz RISC core executes 35 single-word instructions - most in one cycle - delivering deterministic real-time response for PLC scan loops and discrete I/O handling. The integrated 8-bit ADC reads analog sensor signals (temperature, pressure, level) directly, while the USART connects to industrial RS-485 networks via a transceiver. With 7 KB OTP program memory it can host ladder-logic-style control programs. The wide 2.5 V to 6.0 V operating range tolerates industrial 24 V bus-derived supplies after regulation. For best results, add TVS protection on each I/O pin and isolate the MCU with optocouplers from field-side transients.
تجویز کردہ
Motor Control Subsystems
The PIC16C65A-04/L is well suited to brushed DC and stepper motor control subsystems thanks to its integrated CCP (Capture/Compare/PWM) modules that generate precise PWM drive signals without CPU overhead. The 4 MHz instruction rate and three hardware timers allow closed-loop velocity control at update rates above 1 kHz. Its 33 I/O pins drive H-bridge gate signals, fault inputs, and encoder feedback simultaneously, while the 8-bit ADC monitors motor current via shunt resistors for current-limit protection. The 192-byte RAM stores PID state variables and run-time telemetry. For three-phase BLDC or higher-power designs, pair this MCU with external gate drivers and use the USART for command/feedback to a host controller.
تجویز کردہ
Automotive Body Electronics
The PIC16C65A-04/L is used in automotive body electronics modules such as lighting controllers, seat position memories, and HVAC blend-door actuators where deterministic I/O response is required at moderate cost. Its 33 I/O lines interface to switches, LEDs, and small solenoids while the integrated timers generate PWM dimming signals at frequencies above 100 Hz to avoid perceptible flicker. The 8-bit ADC reads thermistor inputs for cabin temperature control. Designers should specify the industrial-temperature PIC16C65A-04I/L (-40C to +85C) variant for under-dash positions, and add reverse-battery and load-dump protection per ISO 7637. The OTP memory locks firmware permanently, preventing field tampering of safety-related parameters.
تجویز کردہ
Smart Sensor Interfaces
The PIC16C65A-04/L functions as a smart sensor front-end that digitizes analog signals, applies linearization, and reports results over a serial bus. Its 8-bit ADC (up to 8 channels) multiplexes multiple sensor inputs - thermocouples, RTDs, load cells - while the 4 MHz core runs calibration tables and digital filters in real time. The USART transmits processed readings in Modbus or custom protocols to a host PLC or data logger. With 7 KB OTP, the firmware can store lookup tables for sensor linearization. The low 15 uA sleep current at 3 V/32 kHz enables battery-powered sensor nodes with multi-year life when duty-cycled. Pair with a precision op-amp front-end for high-accuracy measurements.
تجویز کردہ
Embedded Data Acquisition Systems
The PIC16C65A-04/L powers low-channel-count embedded data acquisition systems found in laboratory instruments, environmental monitors, and portable test gear. The integrated 8-bit ADC samples at rates up to approximately 20 kS/s when clocked at 4 MHz, sufficient for vibration, audio-bandwidth, and process-variable logging. The 192-byte RAM forms a circular sample buffer, and the USART streams acquired data to a host PC or SD-card logger. Its 33 I/O lines drive status LEDs, pushbuttons, and LCD interfaces without external logic. Use the timer-capture feature to timestamp events with microsecond resolution. For higher precision, pair with an external 12-/16-bit ADC like the MCP3201 over SPI.
تجویز کردہ
Consumer Appliance Control Boards
The PIC16C65A-04/L is found in cost-sensitive consumer appliance control boards such as washing-machine timers, dishwasher cycle controllers, and microwave oven keypads. Its OTP memory locks the firmware against copying while keeping unit cost low for high-volume production runs exceeding 100K units annually. The 33 I/O lines scan 4x4 key matrices, drive 7-segment displays, and switch triac-triggered AC loads via optoisolators. The wide 2.5 V to 6.0 V supply range accepts rectified 5 V or 12 V rails without additional regulators. The integrated PWM module modulates heating elements or universal-motor speed via phase-angle control. Choose the commercial temperature grade (PIC16C65A-04/L) since indoor appliance environments rarely exceed 70C.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C65A-04/L — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C65A-04I/L | PIC16C65A-04E/L | PIC16C65AT-04/L | PIC16C65A-10/L | PIC16C66-04/L |
|---|---|---|---|---|---|---|
| Package | 44-pin PLCC (J-Lead) | 44-pin PLCC - same | 44-pin PLCC - same | 44-pin PLCC - same | 44-pin PLCC - same | 44-pin PLCC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 10 MHz | 4 MHz |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP |
| Operating Temperature | 0C to +70C (commercial) | -40C to +85C (industrial) | -40C to +125C (extended) | 0C to +70C (commercial) | 0C to +70C (commercial) | 0C to +70C (commercial) |
| RAM | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes |
| Number of I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Packaging Format | Tube | Tube | Tube | Tape and Reel | Tube | Tube |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
اہم امتیازی خصوصیات
- Commercial temperature grade with lowest distributor pricing among PIC16C65A family (بمقابلہPIC16C65A-04I/L)
- Pin-to-pin compatibility with the higher-memory PIC16C66-04/L enables on-board memory upgrade (بمقابلہPIC16C66-04/L)
- Same 4 MHz grade pin-compatible with faster 10 MHz PIC16C65A-10/L for performance upgrade (بمقابلہPIC16C65A-10/L)
ڈیزائن نوٹس
PIC16C65A-04/L uses OTP (One-Time-Programmable) EPROM - firmware is locked permanently after programming and cannot be erased or rewritten. Engineers commonly confuse OTP with flash and waste prototypes by attempting in-circuit reprogramming. Always validate firmware on a flash equivalent (PIC16F877A) before committing to OTP production parts. Also note that configuration bits (oscillator type, watchdog, brown-out) are part of the OTP image and cannot be changed without a new device. Place a 100 nF decoupling capacitor within 5 mm of each VDD pin, plus a 10 uF bulk capacitor at the board power-entry point.
The 44-pin PLCC package has J-leads on all four sides with 1.27 mm pin pitch, requiring a socket or careful hand-soldering for prototypes. Land patterns should follow IPC-7351 nominal-density PLCC footprints with generous annular rings to survive multiple insertion cycles in low-cost programming sockets. Route the OSC1/OSC2 traces short and symmetric to minimize clock skew; keep the crystal within 5 mm of the OSC pins and guard the traces with a ground pour. Place MCLR pull-up resistor (typically 10 kOhm) close to the pin and add a 100 nF cap to ground for noise immunity - MCLR is sensitive to voltage transients that can cause unintended resets.
Estimated: at 5 V supply with 4 MHz oscillator and all peripherals enabled, active current consumption is approximately 5 mA typical (per family datasheet curves). Power dissipation at full activity is therefore approximately 25 mW, well within the PLCC package's 1 W thermal rating. Sleep mode at 3 V reduces current to roughly 15 uA typical (per datasheet note), enabling battery-backed designs. For lowest-noise analog measurements, place the MCU in sleep mode during ADC conversions and wake via the ADC interrupt - this eliminates digital switching noise from corrupting the analog reading.
تعمیل کی معلومات
PIC16C65A-04/L is a legacy 1997-era OTP EPROM part predating many modern compliance frameworks. RoHS/REACH/lead-free status not explicitly confirmed in verified distributor data; consult Microchip PCN archives for formal declarations. AEC-Q100 automotive qualification not applicable - automotive designs should specify PIC16C65A-04I/L with extended testing.
