PIC16C662-04I/P - 8-Bit 4MHz OTP MCU 7KB Flash 33 I/O | Microchip
MPN: PIC16C662-04I/P ✓ فعالPIC16C662-04I/P نمای کلی
An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU, RAM, non-volatile program memory (ROM/Flash/OTP), and peripherals on a single die. PIC16C66x family parts use a RISC-based Harvard architecture with 35 single-cycle instructions (200 ns instruction cycle at 20 MHz), simplifying code development while delivering deterministic real-time response. Compared with other 8-bit architectures such as the 8051 or AVR, the PIC16C family emphasizes low part cost, small code size (14-bit instruction word), and a broad peripheral set.
Key features of the PIC16C662 include 33 bidirectional I/O pins, multiple timers (Timer0, Timer1, Timer2), a 5-channel 8-bit analog-to-digital converter, two analog comparators, a USART/SCI serial port, and an 8-bit parallel slave port. The '04' speed grade indicates a 4 MHz maximum oscillator input, while the 'I' suffix denotes the industrial temperature grade of -40 °C to +85 °C, allowing deployment in non-automotive industrial enclosures.
Architecturally, the PIC16C662 uses a 14-bit instruction word with separate program and data buses (Harvard architecture), allowing simultaneous instruction fetch and data access. The OTP program memory uses EPROM cells programmed by a high-voltage pulse from a device programmer, with EPROM windowed parts available for prototype code iteration. Operating from a single 4.5 V to 5.5 V supply, the part draws approximately 2 mA active at 4 MHz and less than 1 µA in sleep mode.
Typical applications include industrial control panels, appliance control boards, sensor signal conditioning, LED driving systems, automotive body controllers (industrial grade), HVAC control, and small consumer appliances. The 40-pin PDIP form factor supports breadboard prototyping and hand-soldered production runs.
When designing with the PIC16C662-04I/P, note that OTP memory cannot be erased, so use the JW windowed variant for prototype development. The 4 MHz speed grade is suitable for control loops and serial communication up to ~76.8 kbps at 8 MHz oscillator.
This page synthesizes distributor pricing, drop-in PIC16C6x alternatives, and practical design notes not found on the Microchip datasheet alone, giving engineers a single reference for sourcing and design decisions.
جایگزین‌های drop-in برای PIC16C662-04I/P — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC16C662-04I/P (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Program Memory Type, Operating Temperature, Timers, Program Memory Size.
PIC16C661-04I/P
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16C662-04E/P
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16C662-10I/P
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16C662-20I/P
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16F662-04I/P
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16C662-04I/P حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Instruction Set | 35 instructions, 14-bit word |
| Program Memory Type | OTP EPROM (One-Time-Programmable) |
| Program Memory Size | 7 KB (4K x 14) |
| Data RAM | 176 bytes |
| Data EEPROM | Not present |
| Maximum Clock Input | 4 MHz (speed grade '04') |
| Instruction Cycle Time | 200 ns at 20 MHz (single-cycle, except branches) |
| Supply Voltage (Vdd) | 4.5 V to 5.5 V |
| I/O Pins | 33 bidirectional |
| Timers | Timer0, Timer1, Timer2 (8-bit/16-bit mix) |
| ADC | 8-bit, 5 channels |
| Analog Comparators | 2 |
| Serial Communication | USART/SCI (asynchronous) |
| Parallel Slave Port | 8-bit PSP |
| بسته‌بندی | 40-pin PDIP (DIP-40, 0.600 in / 15.24 mm) |
| نوع نصب | Through-Hole |
| دمای کاری | -40 C to +85 C (industrial, 'I' suffix) |
| Active Current | Approximately 2 mA at 4 MHz / 5 V |
| Sleep Current | < 1 uA typical |
| وضعیت RoHS | Compliant (Pb-free) |
پیکربندی پین PIC16C662-04I/P
| پین 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| پین 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| پین 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| پین 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| پین 5 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / Vref |
| پین 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| پین 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| پین 8 | RE0/RD/AN5 — PORTE bit 0 / parallel slave read / analog input 5 |
| پین 9 | RE1/WR/AN6 — PORTE bit 1 / parallel slave write / analog input 6 |
| پین 10 | RE2/CS/AN7 — PORTE bit 2 / parallel slave chip select / analog input 7 |
| پین 11 | VDD — Positive supply voltage (4.5 V to 5.5 V) |
| پین 12 | VSS — Ground reference |
| پین 13 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| پین 14 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| پین 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock |
| پین 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| پین 17 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM/capture |
| پین 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| پین 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| پین 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| پین 21 | RC6/TX/CK — PORTC bit 6 / USART async transmit / clock |
| پین 22 | RC7/RX/DT — PORTC bit 7 / USART async receive / data |
| پین 23 | RD0/PSP0 — PORTD bit 0 / parallel slave port bit 0 |
| پین 24 | RD1/PSP1 — PORTD bit 1 / parallel slave port bit 1 |
| پین 25 | RD2/PSP2 — PORTD bit 2 / parallel slave port bit 2 |
| پین 26 | RD3/PSP3 — PORTD bit 3 / parallel slave port bit 3 |
| پین 27 | RD4/PSP4 — PORTD bit 4 / parallel slave port bit 4 |
| پین 28 | RD5/PSP5 — PORTD bit 5 / parallel slave port bit 5 |
| پین 29 | RD6/PSP6 — PORTD bit 6 / parallel slave port bit 6 |
| پین 30 | RD7/PSP7 — PORTD bit 7 / parallel slave port bit 7 |
| پین 31 | VSS — Ground reference (second Vss pin) |
| پین 32 | VDD — Positive supply voltage (second Vdd pin) |
| پین 33 | RB0/INT — PORTB bit 0 / external interrupt |
| پین 34 | RB1 — PORTB bit 1 |
| پین 35 | RB2 — PORTB bit 2 |
| پین 36 | RB3 — PORTB bit 3 |
| پین 37 | RB4 — PORTB bit 4 |
| پین 38 | RB5 — PORTB bit 5 |
| پین 39 | RB6 — PORTB bit 6 |
| پین 40 | RB7 — PORTB bit 7 |
کاربردهای معمول
PIC16C662-04I/P مناسب است برای 6 کاربردs: Industrial Control Panels, Home Appliance Control, Sensor Signal Conditioning, LED Lighting Drivers, HVAC Climate Control, Automotive Body Controllers (non-safety).
Industrial Control Panels
The PIC16C662-04I/P fits industrial control panels because it operates from a 5 V rail across the industrial temperature range of -40 C to +85 C, offers 33 I/O lines for switches, relays, and indicator LEDs, and provides two analog comparators plus a 5-channel 8-bit ADC for transducer feedback. Its 4 MHz oscillator rating handles button debouncing, relay sequencing, and slow serial polling without strain. The 40-pin PDIP package supports wave soldering and hand rework on legacy panel designs where surface-mount assembly lines are not available.
پیشنهادی
Home Appliance Control
For washing machines, dishwashers, and small kitchen appliances, the PIC16C662-04I/P delivers enough program space (7 KB) for multi-state machine logic, while 33 I/O pins drive solenoid valves, motor relays, LED indicators, and keypad buttons. The OTP memory is well suited to consumer volumes where firmware is finalized and unit cost dominates. Sleep current below 1 uA supports battery-backed clock retention during standby, prolonging energy ratings on EnergyStar-labelled appliances.
پیشنهادی
Sensor Signal Conditioning
The PIC16C662-04I/P's 5-channel 8-bit ADC and two analog comparators handle thermocouple, thermistor, photodiode, and pressure-bridge signal conditioning in industrial sensor nodes. At 4 MHz, ADC conversion completes in microseconds, enabling fast multiplexed readings across multiple transducer channels. The USART/SCI module streams conditioned data to upstream PLCs or display modules at standard baud rates, while 33 I/O lines accept digital sensors and route control outputs. Industrial temperature grade ensures outdoor or cabinet-mounted reliability.
پیشنهادی
LED Lighting Drivers
Architectural and signage LED drivers benefit from the PIC16C662-04I/P's PWM-capable Timer2, 33 outputs to switch multiple LED strings, and small 40-pin PDIP footprint. OTP memory locks the desired color sequence or animation, preventing field tampering of installed fixtures. The 4 MHz clock rate supports PWM frequencies above 100 Hz to avoid visible flicker while still leaving headroom for serial command reception on the USART, useful for DMX-style lighting buses.
پیشنهادی
HVAC Climate Control
HVAC wall thermostats and zone controllers use the PIC16C662-04I/P to read temperature setpoint encoders, drive triac-controlled fan stages, and multiplex multiple sensor inputs. The 8-bit ADC captures thermistor and humidity sensor voltages, while 33 I/O lines handle keypad scanning, seven-segment displays, and relay drivers. Industrial temperature operation ensures reliable performance in unconditioned equipment rooms and rooftop unit enclosures where temperatures swing widely.
پیشنهادی
Automotive Body Controllers (non-safety)
Non-safety body controllers such as seat adjusters, mirror positioners, and interior lighting strips can use the PIC16C662-04I/P's 33 I/O pins for switch matrix scanning, motor H-bridge enable, and LED current control. The industrial temperature grade covers most cabin environments, while the USART interfaces with the body network for diagnostics. OTP memory locks the calibration once validated, preventing unauthorized field modification of comfort-feature firmware.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC16C662-04I/P — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC16C661-04I/P | PIC16C662-04E/P | PIC16C662-10I/P | PIC16C662-20I/P | PIC16F662-04I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-40 (0.600 in) | PDIP-40 (same) | PDIP-40 (same) | PDIP-40 (same) | PDIP-40 (same) | PDIP-40 (same) |
| Program Memory Type | OTP EPROM (7 KB / 4K x 14) | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash (in-circuit reprogrammable) |
| Program Memory Size | 7 KB (4K x 14 words) | 3.5 KB (2K x 14) - 50% of PIC16C662 | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) |
| Maximum Clock Input | 4 MHz | 4 MHz | 4 MHz | 10 MHz | 20 MHz | 4 MHz |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | 0 C to +70 C (commercial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) |
| Data RAM | 176 bytes | 176 bytes | 176 bytes | 176 bytes | 176 bytes | 176 bytes |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Peripherals (ADC / Comparators / USART) | 5-ch 8-bit ADC / 2 / yes | 5-ch 8-bit ADC / 2 / yes | 5-ch 8-bit ADC / 2 / yes | 5-ch 8-bit ADC / 2 / yes | 5-ch 8-bit ADC / 2 / yes | 5-ch 8-bit ADC / 2 / yes |
تفاوت‌های کلیدی
- Pin-compatible Flash upgrade available for late-stage firmware changes (در مقابلPIC16F662-04I/P)
- Higher speed grades available without PCB changes (در مقابلPIC16C662-20I/P)
- Lower-memory sibling fits smaller firmware footprints (در مقابلPIC16C661-04I/P)
یادداشت‌های طراحی
PIC16C662 OTP memory can be programmed only once via high-voltage (typically 13 V) on the MCLR/VPP pin using a device programmer such as the MPLAB PM3. For prototyping, use the PIC16C662 JW windowed ceramic-DIP variant (not the 'I/P' plastic package) which allows UV erasure and re-programming. Do not design production firmware without a working windowed prototype; once the plastic OTP part is programmed, errors cannot be corrected.
Apply a 0.1 uF decoupling capacitor directly between VDD (pin 11 or 32) and VSS (pin 12 or 31), keeping trace lengths under 5 mm. Add a 10 uF bulk capacitor near the supply entry point. Place the decoupling cap as close as physically possible to the MCU VDD pins; long traces introduce inductive spikes that can corrupt the ADC during high-current output transitions on PORTB or PORTD.
Configure unused I/O pins as outputs and tie them to VSS or VDD - floating inputs can draw excessive supply current (several mA) and may oscillate, injecting noise into the ADC. For PORTA analog-capable pins, disable the digital input buffer by clearing the corresponding PCFG bit in the ADCON1 register when configuring the pin for analog use, which prevents digital input buffer crossover current.
Keep analog input traces (RA0-RA5, RE0-RE2) short and routed away from switching outputs like PWM outputs on RC1/RC2 or PORTD parallel slave port lines. Use a ground pour under the MCU and route analog ground separately back to the regulator. The 8-bit ADC achieves datasheet accuracy only when analog and digital ground returns are properly separated; poor layout can reduce effective ADC resolution to 6-7 bits.
اطلاعات انطباق
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - the 'I' temperature grade (-40 C to +85 C) is industrial, not automotive safety-grade. For automotive applications requiring AEC-Q100, use a PIC16F or dsPIC variant instead.
