PIC16C65B-04/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip PIC16C65B-04/P is an 8-bit EPROM-based microcontroller with 4 MHz clock, 4K x 14-word program memory, and 40-pin PDIP package. It offers multiple I/O ports, timers, and USART for legacy embedded control applications. Available in stock worldwide with fast shipping for maintenance and retrofit designs.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 40
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC16C65B-04/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.9931(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC16 RISC core with 4 MHz maximum clock and 4K x 14-word EPROM program memory
- 40-pin PDIP package with 33 I/O pins across multiple bi-directional ports for breadboard-friendly prototyping
- On-chip USART, SPI, and I2C peripherals enabling serial communication without external components
- Three timer/counter modules supporting PWM, input capture, and compare functions
- One-time programmable EPROM allows field programming for low-volume legacy system repair
Applications
The PIC16C65B-04/P is used in legacy embedded control systems, simple automation equipment, and educational projects requiring a classic 8-bit PIC microcontroller with breadboard-compatible 40-pin DIP packaging. Its 4 MHz clock and 4K EPROM suit low-speed control tasks such as motor sequencing, relay driving, and serial communication interfaces in existing equipment maintained over long service lifetimes. The device is also chosen for retrofit and repair scenarios where design continuity with original PIC16C-family firmware is mandatory.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-40 |
| Factory Lead Time | 6Weeks |
| Date Of Intro | 1990-01-01 |
| YTEOL | 3 |
| Has ADC | NO |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 4MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDIP-T40 |
| JESD-609 Code | e3 |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 33 |
| Number of Serial I/Os | 1 |
| Number of Timers | 7 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP40,.6 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 192 |
| ROM (words) | 4096 |
| ROM Programmability | OTPROM |
| Screening Level | TS 16949 |
| Speed | 20MHz |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16C65B-04/P:
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 4MHz, CMOS, PQFP44
Frequently Asked Questions
What program memory size and clock speed does the PIC16C65B-04/P offer?
The PIC16C65B-04/P has 4K x 14-word EPROM program memory and a maximum clock frequency of 4 MHz. This provides enough code space for simple control tasks such as relay sequencing, sensor reading, and serial communication while keeping power consumption low in battery-operated or industrial equipment.
How many I/O pins are available on the PIC16C65B-04/P and what package does it use?
The PIC16C65B-04/P provides 33 general-purpose I/O pins arranged across multiple bidirectional ports in a 40-pin PDIP package. The through-hole PDIP-40 format fits standard breadboards and 40-pin DIP sockets, making it convenient for prototyping, repair work, and educational applications without requiring surface-mount soldering equipment.
Does the PIC16C65B-04/P include serial communication peripherals?
Yes, the PIC16C65B-04/P integrates a hardware USART for asynchronous RS-232 or synchronous serial communication, as well as hardware SPI and I2C (MSSP) support. These built-in peripherals eliminate the need for external UART or level-shift chips when connecting to displays, EEPROM, or host computers in legacy control systems.
Is the PIC16C65B-04/P still appropriate for new designs, or should engineers choose a newer device?
For new designs, engineers should prefer the PIC16F series (such as PIC16F877A) which offers flash reprogrammability, more peripherals, and better YTEOL scores compared to the PIC16C65B's one-time EPROM. However, the PIC16C65B-04/P remains appropriate for exact hardware replacements in existing equipment where changing the MCU would require costly re-qualification or firmware changes.
What supply voltage range does the PIC16C65B-04/P support, and can it run from a 3.3 V system?
The PIC16C65B-04/P operates from a supply voltage of 2 V to 6 V, meaning it can function from 3.3 V or 5 V rails. At 4 MHz maximum clock, it draws only a few mA of active current, making it suitable for both 5 V industrial control boards and lower-voltage battery-powered retrofit applications.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.2700 | $5.27 |
| 5+ | $5.1910 | $25.95 |
| 10+ | $4.6700 | $46.70 |
| 20+ | $3.9931 | $79.86 |
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