PIC16C65A-04/PQ - 8-Bit 4MHz 7KB OTP MCU 44-MQFP | Microchip
MPN: PIC16C65A-04/PQ ✓ فعالPIC16C65A-04/PQ جائزہ
Background: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and programmable I/O peripherals. PIC microcontrollers from Microchip Technology use a Harvard RISC architecture, separating program and data buses to allow instruction fetch and operand access in a single cycle. The PIC16C family specifically targets cost-sensitive embedded control and is a predecessor to the flash-based PIC16F line.
Key features include a fully static design that supports DC to 4 MHz operation (with -04 speed grade), low-power consumption of 15 uA typical at 5V/4 MHz and 1 uA typical at 3V/32 kHz, and a high-performance RISC CPU with single-cycle instructions except for program branches which take two cycles. The part supports commercial, industrial, and extended temperature ranges, making it suitable for both consumer and harsh-environment deployments.
Architecturally, the PIC16C65A combines an 8-bit ALU with a 14-bit instruction word, 8-level hardware stack, and a powerful set of peripherals including timers, a synchronous serial port (SSP) supporting SPI and I2C, a USART, and an 8-bit parallel slave port for external memory or bused interfaces. This integration allows level-C back-channel communication with peripheral ASICs without external glue logic.
Typical applications include industrial automation controllers, motor control front-ends, sensor signal conditioning, embedded display drivers, and legacy replacement of older 8051-based designs. Its OTP program memory and EPROM windowed variants simplify field programming during prototyping and low-volume production.
When designing with this MCU, ensure the oscillator configuration matches the application: the -04 speed grade limits the clock to 4 MHz, so for higher throughput the PIC16C65A-10 or PIC16C65A-20 variants are required. Plan for a 1-2 ms power-on delay before code execution to allow the oscillator to stabilize.
This page synthesizes distributor pricing, package dimensions, and drop-in alternatives drawn from across Microchip's PIC16C6X portfolio, providing practical sourcing and engineering context not found in the standalone datasheet.
کے لیے ڈراپ اِن متبادل PIC16C65A-04/PQ — 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/PQ (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Timers, Program Memory Type, Core Architecture, Operating Temperature.
PIC16C65A-10/PQ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65A-20/PQ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65B-04/PQ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65A-04I/PQ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65A-04E/PQ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LC65B-04/PQ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65A-04/PQ زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC16C RISC (Harvard) |
| Program Memory Size | 7 KB (4K x 14) OTP EPROM |
| RAM Size | 192 bytes |
| Maximum Clock Speed | 4 MHz (-04 speed grade) |
| Supply Voltage (VDD) | 4.0 V to 6.0 V (5 V typical) |
| I/O Pins | 33 |
| Package Type | 44-MQFP (Metric Quad Flat Pack, 10x10 mm) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Instruction Set | 35 single-word instructions |
| Instruction Cycle | 1 cycle (2 cycles for branches) |
| آپریٹنگ درجہ حرارت رینج | 0C to +70C (Commercial) |
| Power Consumption (Active) | 15 uA typical at 5 V / 4 MHz |
| Power Consumption (Sleep) | 1 uA typical at 3 V / 32 kHz |
| Peripherals | Timers, USART, SSP (SPI/I2C), Parallel Slave Port |
PIC16C65A-04/PQ پن کنفیگریشن
| پن 1 | /MCLR — Master Clear (Reset) input, active low |
| پن 2 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| پن 3 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| پن 4 | RA2/AN2 — Port A bit 2 / Analog input 2 |
| پن 5 | RA3/AN3/VREF — Port A bit 3 / Analog input 3 / Voltage reference |
| پن 6 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| پن 7 | RA5/AN4/SS — Port A bit 5 / Analog input 4 / SPI slave select |
| پن 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| پن 9 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| پن 10 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer 1 oscillator output / clock input |
| پن 11 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer 1 oscillator input / CCP2 |
| پن 12 | RC2/CCP1 — Port C bit 2 / Capture Compare PWM 1 |
| پن 13 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| پن 14 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| پن 15 | RC5/SDO — Port C bit 5 / SPI data out |
| پن 16 | RC6/TX/CK — Port C bit 6 / USART transmit / clock |
| پن 17 | RC7/RX/DT — Port C bit 7 / USART receive / data |
| پن 18 | VSS — Ground reference |
| پن 19 | VSS — Ground reference |
| پن 20 | RB0/INT — Port B bit 0 / External interrupt |
| پن 21 | RB1 — Port B bit 1 |
| پن 22 | RB2 — Port B bit 2 |
| پن 23 | RB3 — Port B bit 3 |
| پن 24 | RB4 — Port B bit 4 |
| پن 25 | RB5 — Port B bit 5 |
| پن 26 | RB6 — Port B bit 6 |
| پن 27 | RB7 — Port B bit 7 |
| پن 28 | RD0/PSP0 — Port D bit 0 / Parallel Slave Port bit 0 |
| پن 29 | RD1/PSP1 — Port D bit 1 / Parallel Slave Port bit 1 |
| پن 30 | RD2/PSP2 — Port D bit 2 / Parallel Slave Port bit 2 |
| پن 31 | RD3/PSP3 — Port D bit 3 / Parallel Slave Port bit 3 |
| پن 32 | RD4/PSP4 — Port D bit 4 / Parallel Slave Port bit 4 |
| پن 33 | RD5/PSP5 — Port D bit 5 / Parallel Slave Port bit 5 |
| پن 34 | RD6/PSP6 — Port D bit 6 / Parallel Slave Port bit 6 |
| پن 35 | RD7/PSP7 — Port D bit 7 / Parallel Slave Port bit 7 |
| پن 36 | RE0/RD — Port E bit 0 / Parallel Slave Port read control |
| پن 37 | RE1/WR — Port E bit 1 / Parallel Slave Port write control |
| پن 38 | RE2/CS — Port E bit 2 / Parallel Slave Port chip select |
| پن 39 | VDD — Positive supply voltage |
| پن 40 | VDD — Positive supply voltage |
| 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/PQ کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Automation Controller, Motor Control Front-End, Sensor Signal Conditioning Hub, Embedded Display Driver, Legacy 8051 Replacement Design, Building Automation and HVAC Controller.
Industrial Automation Controller
The PIC16C65A-04/PQ fits industrial automation controller designs that require 33 digital I/O pins to interface with sensors, relays, and motor drivers without external I/O expanders. Its 7 KB OTP program memory holds typical ladder-logic replacement firmware and PID loop handlers. The 4 MHz clock is sufficient for sequencing scan times of 1-10 ms. The 44-MQFP package provides a small PCB footprint suitable for DIN-rail mounted controller boards. Power consumption at 15 uA active and 1 uA sleep allows battery-backed operation during power-loss events. The integrated USART supports Modbus RTU communication with industrial HMIs and PLCs.
تجویز کردہ
Motor Control Front-End
The PIC16C65A-04/PQ serves as a motor control front-end for low-to-medium complexity brushless DC and stepper motor drives. Its 4 MHz clock drives PWM generation for speed control loops, while the 33 I/O pins handle Hall sensor inputs, quadrature encoder interfaces, and direction-control outputs. The integrated timers provide input capture for RPM measurement with 1 us resolution at 4 MHz. The 7 KB OTP holds commutation tables and PI controller coefficients. Designers benefit from the 44-MQFP package's compact footprint when designing integrated motor-controller boards.
تجویز کردہ
Sensor Signal Conditioning Hub
The PIC16C65A-04/PQ functions as a sensor signal conditioning hub in multi-sensor embedded systems, aggregating inputs from temperature, pressure, and flow sensors via its 33 I/O pins. The integrated ADC (where present on this family) and analog comparators handle linear sensor signals directly. The 192-byte RAM supports moving-average filtering and threshold detection without external memory. The synchronous serial port (SSP) interfaces with SPI-based digital sensors while the USART provides wired connectivity to upstream controllers. The 4 MHz clock supports sampling rates up to 100 kHz for typical sensor arrays.
تجویز کردہ
Embedded Display Driver
The PIC16C65A-04/PQ drives character LCD and small graphic OLED displays in embedded HMI applications. Its 33 I/O pins provide direct interface to 4-bit and 8-bit LCD buses plus 3-4 control lines. The 7 KB OTP holds multi-language font tables and menu structures. The SSP port can drive SPI OLED displays, while the parallel slave port interfaces with character LCD modules. At 4 MHz, refresh rates of 50-100 Hz are achievable for 16x2 and 20x4 character displays. Low-power sleep modes at 1 uA allow battery-powered HMI remotes.
تجویز کردہ
Legacy 8051 Replacement Design
The PIC16C65A-04/PQ is a strong replacement for legacy 8051-family microcontrollers in cost-sensitive embedded products where the original 8051 is end-of-life. With 7 KB OTP (versus typical 4-8 KB 8051 ROM), 33 I/O (versus 32-40 on 8051), and a RISC core with single-cycle instruction execution, the PIC16C65A delivers 2-4x the MIPS per MHz compared to legacy 8051 designs. The 44-MQFP package offers a modern surface-mount alternative to PDIP-40 8051 packages. Firmware must be rewritten due to different instruction set, but the C compiler ecosystem (XC8AC-program) supports migration projects.
تجویز کردہ
Building Automation and HVAC Controller
The PIC16C65A-04/PQ supports building automation and HVAC controller applications including zone damper control, thermostat endpoints, and VAV box controllers. Its 33 I/O pins handle multiple relay outputs for fan speed control and analog inputs for temperature/humidity sensors. The 7 KB OTP holds scheduling logic and PID heating/cooling algorithms. The integrated USART interfaces with BACnet or Modbus building automation networks. At 4 MHz, the device supports typical 250 ms control loop update rates required for HVAC applications. The wide 4-6V supply range accommodates 5V industrial rail environments.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C65A-04/PQ — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C65A-10/PQ | PIC16C65A-20/PQ | PIC16C65B-04/PQ | PIC16C65A-04I/PQ | PIC16C65A-04E/PQ | PIC16LC65B-04/PQ |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-MQFP (10x10 mm) | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same |
| Maximum Clock Speed | 4 MHz | 10 MHz | 20 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP |
| RAM | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 | 33 |
| Supply Voltage | 4.0 V to 6.0 V | 4.0 V to 6.0 V | 4.0 V to 6.0 V | 4.0 V to 6.0 V | 4.0 V to 6.0 V | 4.0 V to 6.0 V | 2.5 V to 6.0 V (low-voltage) |
| Operating Temperature | 0C to +70C (Commercial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | 0C to +70C (Commercial) |
| Silicon Revision | A | A | A | B | A | A | B (LC) |
اہم امتیازی خصوصیات
- Drop-in speed upgrade path within same family (بمقابلہPIC16C65A-10/PQ)
- Industrial temperature variant with identical footprint (بمقابلہPIC16C65A-04I/PQ)
- Extended temperature variant for harsh environments (بمقابلہPIC16C65A-04E/PQ)
- Low-voltage operation variant (بمقابلہPIC16LC65B-04/PQ)
ڈیزائن نوٹس
The PIC16C65A-04/PQ operates from 4.0V to 6.0V supply; for 3.3V systems, select the PIC16LC65B-04/PQ variant which operates down to 2.5V. Add a 100nF decoupling capacitor as close as possible to the VDD pins (39, 40) and a 10uF bulk capacitor on the supply rail. For battery-backed applications, the 1 uA sleep current at 3V/32 kHz enables months of backup operation.
Place the crystal oscillator or external clock source within 1 cm of the OSC1 (pin 8) and OSC2 (pin 9) pins to minimize parasitic capacitance. Route the /MCLR line (pin 1) with a 10 kohm pull-up to VDD and a 100 nF capacitor to ground for proper reset behavior. The 44-MQFP package has two VDD and two VSS pins; both must be connected for proper operation and noise immunity.
Do not exceed the maximum clock input frequency of 4 MHz for the -04 speed grade; higher frequencies require the -10 or -20 variants. The OTP (One-Time-Programmable) memory cannot be erased - ensure firmware is fully validated before programming in production. The parallel slave port (PSP) requires external bus-control logic and is not available while the port D/E pins are configured as general I/O.
The PIC16C65A-04/PQ in the 44-MQFP package has typical power dissipation of approximately 25 mW at 5V/4 MHz active and less than 5 uW in sleep mode. No heatsink is required for normal operation. For enclosed applications with limited airflow, derate ambient temperature by 5-10C to account for self-heating under continuous full-load conditions.
تعمیل کی معلومات
Compliance information not present in the verified web data; PIC16C family MCUs are legacy parts predating widespread RoHS compliance mandates - check with Microchip for current compliance status.
