PIC16C66-04E/SP - 8-Bit 4MHz 14KB OTP MCU | Microchip
Артикул: PIC16C66-04E/SP ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $8.95 | $8,95 |
| 10 | $8.06 | $80,60 |
| 100 | $6.88 | $688,00 |
| 500 | $6.05 | $3.025,00 |
| 1.000 | $5.24 | $5.240,00 |
PIC16C66-04E/SP Обзор
A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, working RAM, and peripherals. Within the broader category, the PIC16C66 sits in the mid-range 8-bit family, hierarchically positioned as: 8-bit MCU -> mid-range MCU -> RISC MCU -> PIC16C family -> PIC16C6x subgroup -> PIC16C66. The /SP suffix designates the SPDIP package, the /04 designator indicates a 4 MHz maximum oscillator frequency, and the E indicates the Extended operating temperature range (-40C to +125C).
Key features include 368 bytes of RAM, 192 bytes of EEPROM data memory, three timers (Timer0, Timer1, Timer2), a 10-bit multi-channel Analog-to-Digital Converter (ADC), a synchronous/asynchronous USART with 9-bit address masking, a Capture/Compare/PWM (CCP) module, and a watchdog timer (WDT) with its own on-chip RC oscillator. Brown-out Reset (BOR) and Power-on Reset (POR) circuitry enhance reliability in noisy supply environments.
The PIC16C66-04E/SP is built on Microchip's low-power, high-speed CMOS EPROM/ROM technology with a fully static design, enabling operation from 2.5V to 6.0V (4.0V to 5.5V for the -04 speed grade) with typical currents of 15 uA at 5V/4 MHz and 1 uA at 3V/32 kHz. Its RISC pipelined core executes most instructions in a single 200 ns cycle, achieving 5 MIPS at 4 MHz.
Typical applications include industrial control systems, automotive subsystems, appliance controllers, sensor interfacing, and low-cost embedded control. The Extended temperature grade and robust peripheral set make it especially suited for harsh-environment deployments.
A critical design consideration is the OTP program memory: once programmed, code cannot be erased. For development work, use a windowed CERDIP version (PIC16C66-04E/JW) or migrate to the Flash-based PIC16F76 in the same 28-pin footprint for production reprogrammability. Always place 100 nF decoupling capacitors close to VDD/VSS pins.
This page synthesizes distributor pricing, drop-in 28-pin SPDIP alternatives, and practical design notes not found in the manufacturer datasheet alone.
Аналоги без доработки для PIC16C66-04E/SP — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с PIC16C66-04E/SP (тот же форм-фактор и посадочное место) — отличается по Core Architecture, Package, Program Memory Type, Operating Temperature Range, Mounting Type.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC16C66-04I/SP
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16C66-04/SP
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16C66-10I/SP
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16C66-20E/SP
✅ Прямая замена✓ В наличии
$4.85 / шт.
Открыть даташит →PIC16C67-04E/SP
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16F76-I/SP
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16C66-04E/SP Максимальные параметры и электрические характеристики
| Core Architecture | PIC16C / 8-bit RISC |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 14 KB (8K x 14) |
| Максимальная тактовая частота | 4 MHz |
| Instruction Set Width | 14-bit |
| RAM Size | 368 bytes |
| EEPROM Data Memory | 192 bytes |
| I/O Pins | 22 |
| Supply Voltage Range | 4.0 V to 5.5 V |
| Диапазон рабочих температур | -40 C to +125 C (Extended) |
| ADC | 10-bit multi-channel |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Communication | USART (SCI) with 9-bit address masking |
| PWM Channels | 1 (CCP module) |
| Watchdog Timer | Yes (with on-chip RC oscillator) |
| Brown-out Reset / POR | Yes |
| Корпус | 28-SPDIP (0.300 inch / 7.62 mm) |
| Тип монтажа | Through-Hole |
| Instruction Count | 35 single-word instructions |
| Instruction Cycle Time | 200 ns at 4 MHz |
Конфигурация выводов PIC16C66-04E/SP
| Контакт 1 | MCLR/VPP — Master Clear (Reset) input / Programming voltage |
| Контакт 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Контакт 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Контакт 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| Контакт 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / ADC reference |
| Контакт 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Контакт 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| Контакт 8 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| Контакт 9 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| Контакт 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / Timer1 clock in |
| Контакт 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Контакт 12 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| Контакт 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Контакт 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Контакт 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| Контакт 16 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Контакт 17 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Контакт 18 | VSS — Ground reference |
| Контакт 19 | VDD — Positive power supply (4.0 V to 5.5 V) |
| Контакт 20 | RB0/INT — PORTB bit 0 / External interrupt |
| Контакт 21 | RB1 — PORTB bit 1 |
| Контакт 22 | RB2 — PORTB bit 2 |
| Контакт 23 | RB3 — PORTB bit 3 |
| Контакт 24 | RB4 — PORTB bit 4 |
| Контакт 25 | RB5 — PORTB bit 5 |
| Контакт 26 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Контакт 27 | RB7/PGD — PORTB bit 7 / ICSP data |
| Контакт 28 | RE0/RD/AN5 — PORTE bit 0 / Read control / Analog input 5 |
| Контакт 29 | RE1/WR/AN6 — PORTE bit 1 / Write control / Analog input 6 |
| Контакт 30 | RE2/CS/AN7 — PORTE bit 2 / Chip select / Analog input 7 |
Типичное применение
PIC16C66-04E/SP подходит для 7 применениеs: Industrial Sensor Interface and Control, Automotive Subsystem Controllers, Appliance Control Boards, HVAC Climate Control Systems, Smart Card and Secure Access Readers, Low-Cost Data Acquisition and Logging, Power Supply and Battery Charger Controllers.
Industrial Sensor Interface and Control
The PIC16C66-04E/SP is well-suited to industrial sensor interfacing because its 10-bit multi-channel ADC and 22 digital I/O lines handle both analog inputs and discrete control signals in a single IC. With its 4 MHz RISC core delivering 5 MIPS and only 200 ns instruction cycles, the MCU can sample multiple sensors, run a closed-loop PID, and update outputs in real time. The Extended -40 C to +125 C temperature grade supports factory-floor and outdoor installations where commercial parts would fail.
Рекомендуется
Automotive Subsystem Controllers
Automotive body and chassis subsystems such as seat controllers, mirror actuators, lighting modules, and HVAC blend-door actuators are common applications for the PIC16C66-04E/SP. The Extended -40 C to +125 C temperature range covers under-hood and cabin environments, while Brown-out Reset and Power-on Reset protect against automotive supply transients and cranking dropouts. The CCP/PWM module drives actuators directly, and the USART interfaces with body-control LIN or K-line networks via an external transceiver.
Рекомендуется
Appliance Control Boards
White-goods appliance controllers - washing machines, dishwashers, microwave ovens, and refrigerators - frequently use PIC16C66-04E/SP-class MCUs to drive keypads, displays, motor triacs, and sensor inputs. The 14 KB OTP EPROM accommodates sophisticated state machines and user-interface code, while the on-chip EEPROM (192 B) stores calibration constants and user preferences across power cycles. The 28-SPDIP through-hole package is friendly to wave-soldered appliance boards and field replacement.
Рекомендуется
HVAC Climate Control Systems
Heating, ventilation, and air-conditioning (HVAC) climate controllers benefit from the PIC16C66-04E/SP's combination of multi-channel ADC (for temperature and humidity sensors), PWM outputs (for damper and valve actuators), and USART (for thermostat network links). The Extended temperature grade supports attic and outdoor installations, while Brown-out Reset tolerates the brown-outs typical of compressor-driven HVAC supplies. The 5 MIPS throughput easily handles PID climate loops and user-interface tasks.
Рекомендуется
Smart Card and Secure Access Readers
The PIC16C66-04E/SP can serve as the host MCU in low-to-medium-volume secure access readers, where its OTP EPROM protects embedded keys against read-back and its on-chip EEPROM stores user credentials or audit trails. The USART interfaces with external smart-card reader ICs, while the ADC reads tamper sensors. The Extended temperature grade supports outdoor reader housings. Note that for high-security deployments, choose a part with cryptographic hardware acceleration rather than software crypto.
Рекомендуется
Low-Cost Data Acquisition and Logging
Low-cost, multi-channel data-acquisition front-ends with local logging are a natural fit for the PIC16C66-04E/SP. The 10-bit ADC samples up to 8 analog channels, the 192-byte EEPROM offers non-volatile parameter storage, and the USART streams data to a host PC or external memory card. Brown-out Reset protects log integrity against supply glitches. For larger memory, pair with an external I2C EEPROM via the I/O lines; for higher sample rates, step up to the 20 MHz PIC16C66-20E/SP.
Рекомендуется
Power Supply and Battery Charger Controllers
The PIC16C66-04E/SP is used as the supervisory MCU in switch-mode power supplies and battery chargers where its ADC measures voltage and current, its PWM drives a power MOSFET via a gate driver, and its USART communicates with a system host. The on-chip watchdog timer with dedicated RC oscillator catches firmware hangs that could damage batteries or loads. The Extended temperature grade supports outdoor and under-hood charger installations.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC16C66-04E/SP — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC16C66-04I/SP | PIC16C66-04/SP | PIC16F76-I/SP |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Program Memory | 14 KB OTP EPROM | 14 KB OTP EPROM | 14 KB OTP EPROM | 14 KB Flash |
| Max Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Operating Temperature | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) |
| RAM | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| ADC | 10-bit multi-channel | 10-bit multi-channel | 10-bit multi-channel | 10-bit multi-channel (8 channels) |
| Memory Reprogrammability | One-Time Programmable (OTP) | OTP | OTP | Flash (in-circuit reprogrammable) |
| Watchdog Timer | Yes | Yes | Yes | Yes |
Ключевые отличия
- Extended temperature grade covers -40 C to +125 C (против PIC16C66-04I/SP)
- Reprogrammable Flash memory for in-circuit updates (против PIC16C66-04E/SP (this part))
- Doubles program memory to 16 KB for richer firmware (против PIC16C67-04E/SP)
Заметки по проектированию
Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 11) and VSS pin (pin 12), with traces kept short to minimize inductance. Add a bulk 10 uF tantalum or aluminum electrolytic capacitor on the VDD rail. For battery-powered designs, the PIC16C66-04E/SP draws approximately 15 uA at 5V/4 MHz and 1 uA at 3V/32 kHz in SLEEP mode, enabling multi-year battery life if wake-up events are infrequent.
The 28-SPDIP package has 0.100 inch (2.54 mm) pin pitch - through-hole friendly for prototype and low-volume production. Keep analog input traces short and away from digital switching signals to avoid ADC noise coupling. Place the crystal (or resonator) close to OSC1 (pin 8) and OSC2 (pin 9), with ground guard traces around the oscillator area. The MCLR pin (pin 1) requires a 10 kohm pull-up to VDD for normal operation.
Do not confuse the PIC16C66-04E/SP (4 MHz, Extended temperature) with the /I (Industrial) or base /SP variants - these have different temperature grades. The OTP EPROM cannot be erased or reprogrammed - once a bit is 0, it stays 0; this makes code revisions impossible in the field. For development, use a windowed CERDIP version (PIC16C66-04E/JW) or migrate to PIC16F76-I/SP for in-circuit reprogrammability. Always configure unused I/O pins as outputs to minimize supply current.
The 10-bit ADC requires adequate acquisition time (typically 20 us for 10k ohm source impedance). Add a small RC filter (100 ohm + 100 nF) on heavily loaded analog inputs to limit bandwidth. Enable the ADC interrupt and read the result in the ADC ISR rather than polling to avoid timing conflicts with PWM or USART peripherals. Use VREF+ tied to VDD only if supply noise is below 1 LSB; otherwise provide a clean external reference.
Информация о соответствии
RoHS/REACH compliance not explicitly stated in verified web data. The PIC16C66-04E/SP uses OTP EPROM (not Flash), so AEC-Q100 is not commonly qualified for this family; check Microchip automotive-grade product list for PIC16C variants.
