PIC16LC65B-04/P - 8-bit PIC MCU 7KB EPROM 4MHz | Microchip
MPN: PIC16LC65B-04/P ✓ פעילPIC16LC65B-04/P סקירה
An 8-bit PIC microcontroller is a Harvard-architecture RISC processor optimized for embedded systems where deterministic instruction timing, low power consumption, and small code footprint are essential. The PIC16C/LC family uses a 14-bit instruction word and offers 35 single-word instructions, with all instructions executing in one instruction cycle except for program branches which take two cycles. This hierarchy places the PIC16LC65B within the broader categories of microcontroller -> embedded processor -> semiconductor IC.
Key features include 7KB EPROM program memory (one-time programmable), 192 bytes of data RAM, 33 digital I/O pins, hardware USART, parallel slave port, two analog comparators, watchdog timer with on-chip RC oscillator, and power-on reset circuitry. The device operates across a commercial temperature range of 0C to +70C and supports in-circuit serial programming (ICSP) via dedicated RB6/RB7 pins.
Architecture-wise, the PIC16LC65B uses an enhanced mid-range 14-bit core with separate program and data address spaces, enabling faster context switching and reduced interrupt latency. The EPROM program memory allows one-time field programming via standard EPROM programmers, while the LC variant's 3V-5.5V operating range makes it suitable for both 3.3V and 5V designs.
Typical applications include industrial control systems, motor control peripherals, sensor interface modules, automotive body electronics (non-safety), consumer appliance controllers, and legacy embedded system maintenance. The 40-pin PDIP package simplifies prototyping and breadboarding. When designing with this device, note that the EPROM windowed ceramic variant requires UV erasure for reprogramming, while the standard OTP plastic variant cannot be erased. Modern designs should consider the PIC16F877A flash equivalent for new development.
חלופות תחליף ישיר עבור PIC16LC65B-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 PIC16LC65B-04/P (אותו גורם צורה וטביעת רגל) — שונים ב Package, Mounting Type, Instruction Set, Program Memory Size, Program Memory Type.
PIC16C65B-04/P
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16F877A-I/P
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16F877-I/P
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC16F874A-I/P
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC16F874-I/P
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC16LC65B-04/P דירוגים מרביים ומאפיינים חשמליים
| Core | 8-bit PIC RISC (14-bit instruction word) |
| Program Memory Type | EPROM (One-Time Programmable) |
| Program Memory Size | 7 KB |
| Data RAM | 192 bytes |
| Clock Speed (Maximum) | 4 MHz (at 3V to 5.5V) |
| Supply Voltage Range | 3 V to 5.5 V |
| I/O Pins | 33 |
| Timers | 2x 8-bit + 1x 16-bit |
| Communication | USART (SCI) |
| Parallel Slave Port (PSP) | Yes (Port D) |
| Analog Comparators | 2 |
| Watchdog Timer | Yes (with on-chip RC oscillator) |
| In-Circuit Serial Programming (ICSP) | Yes |
| מארז | 40-pin PDIP (DIP-40) |
| סוג הרכבה | Through-Hole |
| טווח טמפרטורת פעולה | 0C to +70C (Commercial) |
| Instruction Set | 35 single-word instructions |
תצורת פינים של PIC16LC65B-04/P
| פין 1 | MCLR/VPP — Master Clear (Reset) input / Programming voltage input |
| פין 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| פין 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| פין 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| פין 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / Voltage reference |
| פין 6 | RA4/T0CKI — PORTA bit 4 (open-drain) / Timer 0 clock input |
| פין 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI Slave Select |
| פין 8 | RE0/RD/AN5 — PORTE bit 0 / PSP read control / Analog input 5 |
| פין 9 | RE1/WR/AN6 — PORTE bit 1 / PSP write control / Analog input 6 |
| פין 10 | RE2/CS/AN7 — PORTE bit 2 / PSP chip select / Analog input 7 |
| פין 11 | VDD — Positive supply voltage (+3V to +5.5V) |
| פין 12 | VSS — Ground reference |
| פין 13 | OSC1/CLKIN — Oscillator crystal input / External clock input |
| פין 14 | OSC2/CLKOUT — Oscillator crystal output / Clock output |
| פין 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| פין 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 output |
| פין 17 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| פין 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| פין 19 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| פין 20 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| פין 21 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| פין 22 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| פין 23 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| פין 24 | RC5/SDO — PORTC bit 5 / SPI data out |
| פין 25 | RC6/TX/CK — PORTC bit 6 / USART transmit / USART clock |
| פין 26 | RC7/RX/DT — PORTC bit 7 / USART receive / USART data |
| פין 27 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| פין 28 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| פין 29 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| פין 30 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| פין 31 | VSS — Ground reference |
| פין 32 | VDD — Positive supply voltage (+3V to +5.5V) |
| פין 33 | RB0/INT — PORTB bit 0 / External interrupt input |
| פין 34 | RB1 — PORTB bit 1 |
| פין 35 | RB2 — PORTB bit 2 |
| פין 36 | RB3/PGM — PORTB bit 3 / Low-voltage programming enable |
| פין 37 | RB4 — PORTB bit 4 |
| פין 38 | RB5 — PORTB bit 5 |
| פין 39 | RB6/PGC — PORTB bit 6 / ICSP clock input |
| פין 40 | RB7/PGD — PORTB bit 7 / ICSP data input/output |
יישומים טיפוסיים
PIC16LC65B-04/P מתאים עבור 6 יישוםs: Industrial Control Systems, Motor Control Peripherals, Sensor Interface Modules, Consumer Appliance Controllers, Legacy Embedded System Maintenance, Hobbyist and Educational Prototyping.
Industrial Control Systems
The PIC16LC65B-04/P fits legacy industrial control applications requiring reliable 8-bit processing at 3V to 5.5V with 33 digital I/O for sensor interfacing and actuator driving. Its USART enables connection to industrial communication buses, while the Parallel Slave Port on PORTD allows direct interfacing with external controllers or memory-mapped peripherals. The 4MHz clock is sufficient for closed-loop control loops in motor speed regulation, valve positioning, and conveyor sequencing. Drop-in replacement for older designs still running production lines.
מומלץ
Motor Control Peripherals
The PIC16LC65B-04/P's two 8-bit and one 16-bit timer/counter modules suit stepper motor and DC motor control applications where precise pulse-width modulation timing is required. The 33 I/O pins can drive H-bridge motor drivers directly via PWM outputs on PORTC, while the USART provides feedback communication to a master controller. The 3V-5.5V operating range accommodates both low-voltage battery motor systems and standard 5V industrial motor control boards. Legacy maintenance for existing PWM driver designs.
מומלץ
Sensor Interface Modules
The PIC16LC65B-04/P serves sensor interface hubs requiring multiple digital inputs and moderate processing power. With 33 I/O lines, the device can read arrays of temperature, pressure, and flow sensors while driving indicator LEDs and relay outputs. The two analog comparators support threshold-based sensor detection without external components. Its 192-byte RAM accommodates small data buffers for sensor averaging algorithms, and the USART streams processed data to upstream data loggers or displays.
מומלץ
Consumer Appliance Controllers
The PIC16LC65B-04/P integrates well into consumer appliance controllers such as washing machines, microwave ovens, and dishwasher control boards where 8-bit processing suffices for timing and I/O management. Its 33 I/O lines drive keypad scanning, LED/LCD displays, relay controls, and buzzer outputs. The 4MHz clock supports timing-critical operations like turntable rotation control, while the EPROM memory holds fixed appliance firmware in production units. The 0C to +70C commercial temperature range suits indoor appliance environments.
מומלץ
Legacy Embedded System Maintenance
The PIC16LC65B-04/P is specifically targeted at maintaining legacy embedded systems originally designed around the PIC16C6X/LC65B family. Production facilities with installed equipment running OTP EPROM firmware can use this part for replacement boards and field service. Its pin-compatible 40-pin PDIP footprint allows direct board-level swap without PCB rework. For systems requiring firmware updates, the PIC16F877A-I/P offers a flash-based drop-in alternative, but for true legacy compatibility the LC65B remains the authentic original part.
מומלץ
Hobbyist and Educational Prototyping
The PIC16LC65B-04/P in 40-pin PDIP package is well-suited to hobbyist prototyping and microcontroller education due to its breadboard-friendly through-hole form factor. Students can hand-solder the chip and access all 33 I/O lines plus the USART and PSP for interfacing experiments. The 7KB EPROM and 192B RAM teach fundamental embedded constraints like memory budgeting. Programming via ICSP on RB6/RB7 pins requires only a low-cost PIC programmer. Migration to PIC16F877A-I/P is straightforward for flash-reprogrammable lab work.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC16LC65B-04/P — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC16C65B-04/P | PIC16F877A-I/P | PIC16F877-I/P | PIC16F874A-I/P | PIC16F874-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin PDIP (DIP-40) | 40-pin PDIP (DIP-40) - same | 40-pin PDIP (DIP-40) - same | 40-pin PDIP (DIP-40) - same | 40-pin PDIP (DIP-40) - same | 40-pin PDIP (DIP-40) - same |
| Program Memory Type | EPROM | EPROM | Flash | Flash | Flash | Flash |
| Program Memory Size | 7 KB | 7 KB | 14 KB | 14 KB | 7 KB | 7 KB |
| Data RAM | 192 bytes | 192 bytes | 368 bytes | 368 bytes | 128 bytes | 128 bytes |
| Maximum Clock Speed | 4 MHz | 4 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage Range | 3 V to 5.5 V | 4.5 V to 5.5 V | 2 V to 5.5 V | 2 V to 5.5 V | 2 V to 5.5 V | 2 V to 5.5 V |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Reprogrammable | No (OTP EPROM) | No (OTP EPROM) | Yes (Flash, 100k cycles) | Yes (Flash, 100k cycles) | Yes (Flash, 100k cycles) | Yes (Flash, 100k cycles) |
מבדילים עיקריים
- Low-voltage 3V operation in original PIC16C6X family footprint (לעומתPIC16C65B-04/P)
- Authentic legacy EPROM compatibility for installed base maintenance (לעומתPIC16F877A-I/P)
- Exact same I/O count and peripheral set with proven toolchain support (לעומתPIC16F874A-I/P)
הערות תכנון
Do not confuse the PIC16LC65B-04/P with the PIC16C65B-04/P: the LC variant operates from 3V to 5.5V while the C variant requires 4.5V to 5.5V. Substituting the C variant in a 3.3V design will cause brown-out reset issues. The "-04" suffix denotes 4MHz maximum clock speed; the -20 variant is required for applications needing 20MHz operation. Both LC and C variants use EPROM which cannot be electrically erased - any code change requires a new chip.
Place a 0.1uF decoupling capacitor as close as possible to each VDD pin (pins 11 and 32) with a short trace to the adjacent VSS pin (pins 12 and 31). For designs using the LC variant's 3.3V operation, ensure the bulk supply has sufficient headroom and low ripple; the brown-out detector triggers below approximately 3V. Adding a 10uF tantalum bulk capacitor near the MCU improves transient response when driving multiple outputs simultaneously.
Route the MCLR/VPP pin (pin 1) directly to the reset circuit with a 10k pull-up resistor to VDD. For ICSP programming, ensure the RB6/PGC and RB7/PGD lines are accessible via a programming header and are not loaded with heavy capacitance (>50pF). The OSC1/OSC2 traces (pins 13/14) should be kept short and surrounded by ground plane when using a crystal; for high-frequency or noisy environments, consider a 4-pin resonator with built-in capacitors.
מידע על תאימות
Compliance information not explicitly stated in the verified web data. The PIC16LC65B-04/P is a mature legacy part introduced in the 1990s; lead-free and RoHS status should be verified with Microchip directly for current production. Not AEC-Q100 qualified - this is a commercial-grade part.
