PIC16C65B-04/P - 8-Bit OTP MCU, 4MHz, 7KB DIP-40 | Microchip
MPN: PIC16C65B-04/P ✓ פעילPIC16C65B-04/P סקירה
A microcontroller (MCU) is a single-chip computer that combines a CPU core, non-volatile program memory, working RAM, and configurable peripherals into one IC. The PIC16CXX mid-range family sits within Microchip's 8-bit PIC architecture hierarchy: 8-bit MCU -> PIC16CXX -> PIC16C6x -> OTP variants. These parts target cost-sensitive embedded applications where Flash reprogrammability is not required and ROM-mask economics do not justify the volume, making OTP the optimal balance between unit cost and prototyping flexibility.
Key features include 35 single-word instructions (most executed in a single 200 ns instruction cycle, with program branches taking two cycles), an operating voltage range of 4.0 V to 5.5 V, 22 I/O pins, and a high-performance RISC CPU designed for deterministic real-time response. The architecture supports direct and indirect addressing modes and a hardware stack for subroutine nesting. The 40-pin PDIP package uses an industry-standard 0.600-inch row spacing with through-hole mounting, simplifying prototyping, breadboarding, and field-replaceable designs.
Typical applications include industrial control systems, motor control front-ends, instrumentation, and legacy embedded designs where the original PIC16C65B-04/P footprint is fixed. The device is also widely used for educational purposes and as a known-good reference part for low-volume manufacturing.
When designing with this part, ensure the device programmer supports the OTP window or production programming; for prototyping, consider the windowed ceramic (JW) variants for UV erasure. The 4 MHz rating indicates the maximum oscillator frequency; ensure the instruction-cycle-sensitive timing budget remains within 200 ns even under branch-heavy code paths.
חלופות תחליף ישיר עבור PIC16C65B-04/P — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC16C65B-04/P (אותו גורם צורה וטביעת רגל) — שונים ב Package, Program Memory Size, Program Memory Type, Mounting Type, Timers.
PIC16C65B-04I/P
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C65B-20/P
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
PIC16C65B-10/P
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
PIC16C65A-20/P
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C65B-04I/PQ
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16F877A-I/P
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C65B-04/P דירוגים מרביים ומאפיינים חשמליים
| Product Type | 8-bit Microcontroller (MCU) |
| Family | PIC16CXX mid-range |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 7 KB (4K x 14 words) |
| Data RAM | 192 bytes |
| תדר שעון מקסימלי | 4 MHz |
| Instruction Cycle Time | 200 ns |
| Supply Voltage (Vdd) | 4.0 V to 5.5 V |
| I/O Pins | 22 |
| Timers | Timer0 (8-bit), Timer1 (16-bit), Timer2 (8-bit) |
| Communication Peripherals | USART (SCI), SPI/I2C via SSP |
| CCP Module | Capture / Compare / PWM |
| מארז | 40-pin PDIP (Plastic DIP, 0.600 in) |
| טמפרטורת פעולה | 0C to +70C (commercial) |
| Instruction Set | 35 single-word RISC instructions |
| Architecture | 8-bit RISC, Harvard |
| סוג הרכבה | Through-Hole (DIP) |
תצורת פינים של PIC16C65B-04/P
| פין 1 | MCLR — Master Clear (reset) input, active low |
| פין 2 | RA0 — PORTA bit 0 (digital I/O) |
| פין 3 | RA1 — PORTA bit 1 (digital I/O) |
| פין 4 | RA2 — PORTA bit 2 (digital I/O) |
| פין 5 | RA3 — PORTA bit 3 (digital I/O) |
| פין 6 | RA4 — PORTA bit 4 (digital I/O, open-drain) |
| פין 7 | RA5 — PORTA bit 5 (digital I/O) |
| פין 8 | RE0 — PORTE bit 0 (digital I/O) |
| פין 9 | RE1 — PORTE bit 1 (digital I/O) |
| פין 10 | RE2 — PORTE bit 2 (digital I/O) |
| פין 11 | VDD — Positive supply voltage |
| פין 12 | VSS — Ground reference |
| פין 13 | OSC1 — Oscillator input |
| פין 14 | OSC2 — Oscillator output |
| פין 15 | RC0 — PORTC bit 0 (digital I/O, Timer2 clock input) |
| פין 16 | RC1 — PORTC bit 1 (digital I/O, CCP1 input/output) |
| פין 17 | RC2 — PORTC bit 2 (digital I/O, CCP1 output) |
| פין 18 | RC3 — PORTC bit 3 (digital I/O, SPI/I2C clock) |
| פין 19 | RD0 — PORTD bit 0 (digital I/O, PSP data) |
| פין 20 | RD1 — PORTD bit 1 (digital I/O, PSP data) |
| פין 21 | RD2 — PORTD bit 2 (digital I/O, PSP data) |
| פין 22 | RD3 — PORTD bit 3 (digital I/O, PSP data) |
| פין 23 | RC4 — PORTC bit 4 (digital I/O, SPI/I2C data) |
| פין 24 | RC5 — PORTC bit 5 (digital I/O, SPI data out) |
| פין 25 | RC6 — PORTC bit 6 (digital I/O, USART TX) |
| פין 26 | RC7 — PORTC bit 7 (digital I/O, USART RX) |
| פין 27 | RD4 — PORTD bit 4 (digital I/O, PSP data) |
| פין 28 | RD5 — PORTD bit 5 (digital I/O, PSP data) |
| פין 29 | RD6 — PORTD bit 6 (digital I/O, PSP data) |
| פין 30 | RD7 — PORTD bit 7 (digital I/O, PSP data) |
| פין 31 | VSS — Ground reference |
| פין 32 | VDD — Positive supply voltage |
| פין 33 | RB0 — PORTB bit 0 (digital I/O, external interrupt) |
| פין 34 | RB1 — PORTB bit 1 (digital I/O) |
| פין 35 | RB2 — PORTB bit 2 (digital I/O) |
| פין 36 | RB3 — PORTB bit 3 (digital I/O) |
| פין 37 | RB4 — PORTB bit 4 (digital I/O, interrupt-on-change) |
| פין 38 | RB5 — PORTB bit 5 (digital I/O, interrupt-on-change) |
| פין 39 | RB6 — PORTB bit 6 (digital I/O, interrupt-on-change, ICSP clock) |
| פין 40 | RB7 — PORTB bit 7 (digital I/O, interrupt-on-change, ICSP data) |
יישומים טיפוסיים
PIC16C65B-04/P מתאים עבור 6 יישוםs: Industrial Control Systems, Motor Control and PWM Drive, Instrumentation and Data Acquisition, Legacy Embedded System Maintenance, Educational and Development Platforms, Security and Access Control Devices.
Industrial Control Systems
The PIC16C65B-04/P fits industrial control front-ends thanks to its 22 I/O pins driving relays and sensors, 4 MIPS deterministic execution for real-time control loops, and 7 KB OTP securing proprietary control algorithms against reverse engineering. With USART and CCP peripherals it can manage motor-control PWM and sensor feedback simultaneously. The 4.0-5.5V supply matches 5V industrial rails directly, eliminating level shifters.
מומלץ
Motor Control and PWM Drive
The PIC16C65B-04/P drives small DC and stepper motors using its Capture/Compare/PWM (CCP) module generating precise PWM signals at up to 4 MHz instruction rate. The 200 ns cycle provides fine-grained duty-cycle resolution for smooth torque control. Timer2 sets the PWM period while the CCP handles compare events, freeing the CPU for feedback loop calculation. The 22 I/O lines support quadrature encoder inputs and H-bridge enable signals.
מומלץ
Instrumentation and Data Acquisition
The PIC16C65B-04/P serves as a data-acquisition controller with its USART for serial data uplink, Timer1 16-bit capture for precise event timestamping, and 22 digital I/O lines for multiplexer control. With 7 KB OTP and 192 bytes RAM, the MCU can buffer moderate sample sets before transmission. The 4 MIPS throughput handles sensor polling at hundreds of Hz without processor bottleneck.
מומלץ
Legacy Embedded System Maintenance
The PIC16C65B-04/P is the OEM-specified replacement for maintaining installed-base equipment originally designed around PIC16C65B silicon. Its identical pinout and OTP security preserves backward compatibility with deployed firmware. The 40-pin PDIP simplifies field replacement without board rework, and Microchip's active lifecycle status confirms continued availability for long-life industrial and aerospace sustainment programs.
מומלץ
Educational and Development Platforms
The PIC16C65B-04/P in 40-pin PDIP is widely used in university embedded-systems curricula thanks to its through-hole mounting on breadboards and standard 0.600-inch pin spacing. The 35-instruction RISC set is approachable for first-time MCU learners, and the documented peripheral set (Timers, USART, CCP) covers core embedded concepts. OTP programming teaches production deployment discipline in academic lab settings.
מומלץ
Security and Access Control Devices
The PIC16C65B-04/P's OTP memory provides inherent security against firmware extraction once programmed, making it suitable for access-control panels, alarm systems, and electronic locks where code must resist tampering. The 22 I/O lines interface with keypads, magnetic-stripe readers, and relay outputs, while the USART enables logging to a central controller. OTP bit security prevents cloning of the access-control algorithm.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC16C65B-04/P — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC16C65B-04I/P | PIC16C65B-20/P | PIC16C65B-10/P | PIC16C65A-20/P | PIC16F877A-I/P |
|---|---|---|---|---|---|---|
| Package | 40-pin PDIP | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 14 KB Flash |
| Max Clock Speed | 4 MHz | 4 MHz | 20 MHz | 10 MHz | 20 MHz | 20 MHz |
| Data RAM | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 368 bytes |
| Operating Temperature | 0C to +70C (commercial) | -40C to +85C (industrial) | 0C to +70C | 0C to +70C | 0C to +70C | -40C to +85C (industrial) |
| Memory Type | OTP | OTP | OTP | OTP | OTP | Flash (reprogrammable) |
| I/O Pins | 22 | 22 | 22 | 22 | 22 | 33 |
מבדילים עיקריים
- Industrial temperature grade option available in identical footprint (לעומתPIC16C65B-04I/P)
- Multiple speed grades on identical silicon (לעומתPIC16C65B-10/P, PIC16C65B-20/P)
- Direct Flash-based migration path with same pinout (לעומתPIC16F877A-I/P)
הערות תכנון
The PIC16C65B-04/P operates from 4.0 V to 5.5 V and requires both VDD pins (11 and 32) tied together and both VSS pins (12 and 31) tied to ground. According to the Microchip datasheet, decoupling must include a 0.1 uF ceramic capacitor placed within 6 mm of each VDD pin, plus a bulk 10 uF tantalum or aluminum electrolytic on the supply rail. Brown-out detection is not available on this part; use an external voltage supervisor (e.g., MCP100 or MCP130) for failsafe reset if the application can experience supply droop below 4.0 V.
The 40-pin PDIP package uses 0.600-inch row spacing with 0.100-inch pin pitch, compatible with standard 40-pin DIP sockets and breadboards. According to the datasheet, the oscillator pins (OSC1/OSC2) should be kept short and shielded from high-current switching traces to minimize EMI coupling. Place a ground plane under the crystal and load capacitors; route MCLR with a short trace and add a 10 kohm pull-up to VDD per datasheet recommendations for reliable reset behavior.
OTP programming requires a device programmer (e.g., MPLAB PM3) and cannot be erased after programming. According to Microchip, the -04 speed grade is rated at 4 MHz maximum, so configuring the oscillator for 10 MHz or 20 MHz will violate AC timing specs and may cause unreliable execution. For development cycles, use the JW (windowed ceramic) variant or migrate to PIC16F877A-I/P for Flash reprogrammability. The parallel slave port (PORTD/PORTE) requires TRIS configuration in software before use; forgetting this is a common cause of bus contention.
The PIC16C65B-04/P in PDIP-40 has a thermal resistance (theta_JA) of approximately 50 C/W in still air. At maximum operating current (~30 mA active, 5 mA sleep) and 5 V supply, power dissipation is 150 mW worst case, producing a 7.5 C junction temperature rise. The commercial 0-70C rating is comfortable for typical industrial enclosures. For sealed enclosures above 60 C ambient, derate to the industrial -04I/P variant or add a small clip-on heatsink on the DIP body.
מידע על תאימות
RoHS/REACH compliance status not explicitly stated in verified web data. PIC16C65B-04/P is not AEC-Q100 qualified (industrial -04I/P variant exists for harsher environments). Conflict-minerals compliance inferred from Microchip's published CMRT declarations.
