PIC16C65B-04E/PT - 7KB OTP 8-Bit MCU, 4MHz, TQFP-44 | Microchip
MPN: PIC16C65B-04E/PT ✗ اختتامِ زندگیPIC16C65B-04E/PT جائزہ
What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller is a type of embedded MCU whose program memory is implemented as EPROM rather than Flash or ROM. EPROM-based MCUs can be programmed exactly once using a device programmer (such as the MPLAB PM3) before being locked into the application firmware. They are commonly used in cost-sensitive, high-volume production where firmware changes are not expected after deployment, and they sit in the broader hierarchy: microcontroller -> embedded MCU -> microprocessor -> semiconductor.
The PIC16C65B employs Microchip's enhanced mid-range RISC architecture with a 14-bit instruction word, two 8-bit timer/counters, a capture/compare/PWM module, a USART for serial communications, and an 8-bit parallel slave port. It includes an integrated watchdog timer with on-chip RC oscillator for reliable operation in noisy environments, plus a brown-out reset circuit and power-on reset for robust startup behavior.
Typical low-power figures include 5 mA typical at 5 V / 4 MHz and as low as 1 µA typical in sleep mode at 3 V / 32 kHz, enabling battery-friendly designs. The PIC16C65B is commonly deployed in motor control (H-bridge drivers, small BLDC controllers), industrial sensor interfaces (4-20 mA loops, RTD conditioning boards), automotive body electronics (mirror controllers, HVAC actuators), appliance control (washing machine front panels, oven timers), and embedded security panels requiring deterministic 8-bit control.
A key design consideration for the PIC16C65B is its OTP program memory: since firmware is locked in after programming, the device cannot be re-flashed in-circuit. Engineers should plan for factory programming via the MPLAB PM3 or equivalent programmer and verify firmware thoroughly before committing to production. This page synthesizes distributor pricing, same-package drop-in alternatives within the PIC16C65B family, and practical design notes that complement the Microchip datasheet.
کے لیے ڈراپ اِن متبادل PIC16C65B-04E/PT — 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 PIC16C65B-04E/PT (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Operating Temperature Range, Timers, Program Memory Type, ADC.
PIC16C65B-04E/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65B-04I/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65B-04/PT
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C65B-04E/PQ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65BT-04E/PT
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C65B-04E/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65A-04E/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F877A-I/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C65B-04E/PT زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC16CXX mid-range 8-bit RISC |
| Instruction Word | 14-bit |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 7 KB (4K x 14) |
| RAM Size | 192 bytes |
| Number of I/O Pins | 33 |
| Maximum Clock Speed | 4 MHz |
| Operating Voltage Range | 2.5 V to 6.0 V |
| آپریٹنگ درجہ حرارت رینج | -40 °C to +125 °C (Extended) |
| پیکیج / کیس | 44-pin TQFP (PT), surface-mount |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Peripherals | 2x 8-bit timers, 1x CCP, USART, Parallel Slave Port, watchdog timer, brown-out reset, POR |
| Typical Active Current | 5 mA at 5 V, 4 MHz |
| Typical Sleep Current | 1 µA at 3 V, 32 kHz |
| Speed Grade Suffix | /04 = 4 MHz oscillator input |
| Temperature Grade Suffix | /E = Extended -40 °C to +125 °C |
PIC16C65B-04E/PT پن کنفیگریشن
| پن 1 | OSC1/CLKIN — Oscillator input / external clock input |
| پن 2 | OSC2/CLKOUT — Oscillator output (crystal mode) or instruction cycle clock (RC mode) |
| پن 3 | MCLR/VPP — Master clear reset (active low) / programming voltage input |
| پن 4 | RA0/AN0 — Port A bit 0 / analog input 0 |
| پن 5 | RA1/AN1 — Port A bit 1 / analog input 1 |
| پن 6 | RA2/AN2 — Port A bit 2 / analog input 2 |
| پن 7 | RA3/AN3/VREF — Port A bit 3 / analog input 3 / voltage reference |
| پن 8 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| پن 9 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| پن 10 | VSS — Ground reference |
| پن 11 | VDD — Positive supply voltage |
| پن 12 | RB0/INT — Port B bit 0 / external interrupt input |
| پن 13 | RB1 — Port B bit 1 |
| پن 14 | RB2 — Port B bit 2 |
| پن 15 | RB3 — Port B bit 3 |
| پن 16 | RB4 — Port B bit 4 |
| پن 17 | RB5 — Port B bit 5 |
| پن 18 | RB6/PGC — Port B bit 6 / in-circuit debugger clock |
| پن 19 | RB7/PGD — Port B bit 7 / in-circuit debugger data |
| پن 20 | VSS — Ground reference |
| پن 21 | VDD — Positive supply voltage |
| پن 22 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / Timer1 clock input |
| پن 23 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator input / CCP2 output |
| پن 24 | RC2/CCP1 — Port C bit 2 / CCP1 I/O |
| پن 25 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| پن 26 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| پن 27 | RC5/SDO — Port C bit 5 / SPI data out |
| پن 28 | RC6/TX/CK — Port C bit 6 / USART transmit / USART clock |
| پن 29 | RC7/RX/DT — Port C bit 7 / USART receive / USART data |
| پن 30 | VSS — Ground reference |
| پن 31 | VDD — Positive supply voltage |
| پن 32 | RD0/PSP0 — Port D bit 0 / parallel slave port bit 0 |
| پن 33 | RD1/PSP1 — Port D bit 1 / parallel slave port bit 1 |
| پن 34 | RD2/PSP2 — Port D bit 2 / parallel slave port bit 2 |
| پن 35 | RD3/PSP3 — Port D bit 3 / parallel slave port bit 3 |
| پن 36 | RD4/PSP4 — Port D bit 4 / parallel slave port bit 4 |
| پن 37 | RD5/PSP5 — Port D bit 5 / parallel slave port bit 5 |
| پن 38 | RD6/PSP6 — Port D bit 6 / parallel slave port bit 6 |
| پن 39 | RD7/PSP7 — Port D bit 7 / parallel slave port bit 7 |
| پن 40 | VSS — Ground reference |
| پن 41 | VDD — Positive supply voltage |
| پن 42 | RE0/RD/AN5 — Port E bit 0 / read control for PSP / analog input 5 |
| پن 43 | RE1/WR/AN6 — Port E bit 1 / write control for PSP / analog input 6 |
| پن 44 | RE2/CS/AN7 — Port E bit 2 / chip select for PSP / analog input 7 |
عام استعمالات
PIC16C65B-04E/PT کے لیے موزوں ہے 6 ایپلیکیشنs: Automotive Body Electronics, Industrial Sensor Interface & 4-20 mA Loop, Motor Control & Small BLDC Drivers, Appliance Control Boards, Embedded Security & Access Panels, HVAC & Climate Sensors.
Automotive Body Electronics
The PIC16C65B-04E/PT's extended -40 °C to +125 °C temperature range and 33 GPIO pins suit it to automotive body controllers including power mirror modules, HVAC damper actuators, and seat position controllers. The PIC16C65B's integrated USART enables LIN-bus master/slave communication with body domain controllers, while the CCP module drives PWM outputs for DC motor speed control. With 7 KB OTP program memory and 192 bytes RAM, the part can host full state-machine firmware for mirror-fold and seat-position routines without external memory. The on-chip watchdog timer and brown-out reset deliver the robustness automotive OEMs expect for underhood and cabin modules. The 4 MHz instruction rate is sufficient for 10 ms LIN response windows and 100 Hz motor control loops.
تجویز کردہ
Industrial Sensor Interface & 4-20 mA Loop
In industrial 4-20 mA current-loop transmitters and RTD conditioning boards, the PIC16C65B-04E/PT serves as the local microcontroller that linearizes sensor readings and modulates the loop current. The 33 I/O pins interface to multiple analog sensor channels through external op-amps (e.g., MCP6N11), while the on-chip 8-bit ADC digitizes conditioned signals for firmware-side calibration. With 7 KB OTP, the device stores factory calibration tables and protocol handlers for HART or Modbus RTU over the USART. The extended temperature grade supports outdoor installations and process plants. The 1 µA sleep current enables battery-assisted loop power budgets for wireless retrofit sensors that wake periodically to transmit.
تجویز کردہ
Motor Control & Small BLDC Drivers
The PIC16C65B-04E/PT is well-matched to small brushless DC (BLDC) and brushed DC motor controllers for fans, pumps, and small appliances. The CCP module generates a 20 kHz PWM drive signal at 10-bit resolution, while two 8-bit timers handle back-EMF zero-crossing detection and commutation timing. With 33 I/O pins, the MCU directly drives a 3-phase gate driver (e.g., MCP8024) without external logic. The 4 MHz CPU throughput sustains sensorless trapezoidal commutation at up to 30,000 RPM with a 4-pole rotor. Brown-out reset and the on-chip watchdog protect the motor from firmware stalls that could otherwise latch a phase high.
تجویز کردہ
Appliance Control Boards
The PIC16C65B-04E/PT powers control boards in white goods such as washing machines, dishwashers, and oven timers where the firmware is finalized before production. The 7 KB OTP hosts full state-machine code for cycle sequencing, water-level detection, and user interface handling without needing external memory. The USART drives LED/VFD display drivers, while the parallel slave port interfaces to LED matrix or 7-segment modules. Extended temperature operation supports under-counter and unventilated cabinet installations. The PIC16C65B's low 1 µA sleep current is ideal for standby-mode appliances targeting ENERGY STAR idle budgets, where the MCU wakes on button or interrupt events.
تجویز کردہ
Embedded Security & Access Panels
For intrusion alarm panels, access controllers, and fire-alarm annunciators, the PIC16C65B-04E/PT delivers deterministic 8-bit control with OTP firmware that prevents unauthorized field reprogramming. The USART links to GSM/4G alarm communicators and keypad modules, while the 33 I/O pins interface directly to PIR sensors, reed switches, and siren drivers. Brown-out reset and the watchdog timer prevent lock-up conditions that could silence an alarm. With 7 KB OTP, the firmware fits complete multi-zone detection logic plus dialer handshake state machines. The extended temperature grade supports outdoor-rated enclosures and unheated warehouses.
تجویز کردہ
HVAC & Climate Sensors
In HVAC zone controllers, smart thermostats, and air-quality monitors, the PIC16C65B-04E/PT serves as the local MCU that drives triac-based fan/valve outputs and reads temperature/humidity sensors via I2C or analog channels. The CCP module generates the zero-cross-detected phase-angle fire pulses needed for TRIAC dimming and motor speed control. With 33 I/O, the device supports multiple relay outputs, keypad scanning, and an LCD interface without external logic. The extended temperature range suits rooftop and outdoor air-handler installations. OTP firmware locks in calibration constants and OEM-specific feature flags for differentiation across product tiers.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C65B-04E/PT — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C65B-04I/PT | PIC16C65B-04/PT | PIC16C65B-04E/PQ | PIC16C65BT-04E/PT | PIC16F877A-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-44 (PT) | TQFP-44 (PT) - same | TQFP-44 (PT) - same | MQFP-44 (PQ) - same pin count | TQFP-44 (PT) - same | TQFP-44 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | OTP EPROM (7 KB / 4K x 14) | OTP EPROM (7 KB / 4K x 14) - same | OTP EPROM (7 KB / 4K x 14) - same | Flash (14 KB) - re-programmable | ||
| Maximum Clock Speed | 4 MHz | 4 MHz - same | 4 MHz - same | 20 MHz - 5x faster | ||
| Operating Voltage Range | 2.5 V to 6.0 V | 2.5 V to 6.0 V - same | 2.5 V to 6.0 V - same | 2.0 V to 5.5 V - similar | ||
| Temperature Range | -40 °C to +125 °C (Extended) | -40 °C to +85 °C (Industrial) | 0 °C to +70 °C (Commercial) | -40 °C to +85 °C (Industrial) | ||
| Number of I/O | 33 | 33 - same | 33 - same | 33 - same | ||
| Lifecycle Status | NRND | NRND | NRND | Active (recommended for new designs) |
اہم امتیازی خصوصیات
- Extended temperature grade (-40 °C to +125 °C) in the TQFP-44 package (بمقابلہPIC16C65B-04I/PT)
- Field-reprogrammable Flash memory at a 4x faster clock (بمقابلہPIC16C65B-04I/PT)
- Same-die drop-in with 100% register compatibility in a tape-and-reel format (بمقابلہPIC16C65B-04/PT)
ڈیزائن نوٹس
Estimated: At VDD = 5 V, 4 MHz active, the PIC16C65B draws approximately 5 mA typical (per Microchip datasheet). For battery-assisted applications, the 1 µA typical sleep current at 3 V / 32 kHz enables long shelf life. Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD pin (TQFP-44 has multiple VDD/VSS pairs: pins 11/10, 21/20, 31/30, 41/40) and a bulk 10 µF tantalum at the regulator output to handle CCP and USART switching transients.
The TQFP-44 (PT) package requires careful thermal management when used at +125 °C upper temperature. Provide a continuous ground pour beneath the device and stitch vias around the perimeter for heat spreading. Keep the high-current driver traces (CCP1/CCP2 outputs at pins 24/23) short and wide (>= 0.3 mm) to limit ringing that couples into the analog AVdd/AVss rails. Route the crystal traces (OSC1/OSC2 at pins 1/2) symmetrically with a ground guard ring and keep them under 10 mm.
The PIC16C65B uses OTP EPROM and CANNOT be re-flashed like the PIC16F family. Burn firmware once via the MPLAB PM3 before SMT placement, and verify code coverage fully on a windowed/UV-erasable PIC16C65B JW package during development. Do not exceed 6.0 V on VDD or the brown-out reset may latch permanently. MCLR (pin 3) must NOT be left floating - tie through a 10 kΩ pull-up to VDD with optional 100 nF to ground for delayed reset during power-up.
The USART pins (RC6/TX, RC7/RX at pins 28/29) drive CMOS-level signals and benefit from a series 100 Ω resistor for impedance matching when routing to off-board connectors. For the parallel slave port (RD0-RD7, RE0-RE2 at pins 32-39, 42-44), place 10 kΩ pull-ups on the chip-select and read/write strobes to prevent false triggering during power-up. The CCP PWM output (RC2/CCP1 at pin 24) can generate fast edges - keep trace length under 25 mm to limit radiated emissions.
تعمیل کی معلومات
Lifecycle status is NRND (Not Recommended for New Designs) per Microchip. RoHS/REACH/lead-free status not confirmed in the provided data - check the manufacturer product page for the latest compliance documentation. AEC-Q100 not formally qualified, though extended temp range suits many automotive applications.
