PIC16C64A-04E/PT - 8-Bit OTP MCU, 3.5KB EPROM, 4MHz, TQFP-44 | Microchip
Артикул: PIC16C64A-04E/PT ⚠ Последняя закупка| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $11.2 | $11,20 |
| 10 | $10.05 | $100,50 |
| 100 | $8.95 | $895,00 |
| 500 | $8.1 | $4.050,00 |
| 1.000 | $7.35 | $7.350,00 |
PIC16C64A-04E/PT Обзор
An 8-bit PIC microcontroller is a Harvard-architecture, RISC-based CMOS device in which program and data memories use separate buses. This separation allows instruction fetch and operand read to occur in the same cycle, giving PIC MCUs their characteristic deterministic execution time. Within the broader taxonomy, the PIC16C64A belongs to the PIC16 family of mid-range microcontrollers, which sits between the baseline PIC10/12/16 families and the high-end PIC18 family, and ultimately under the umbrella of embedded microcontrollers -> microcontrollers -> integrated circuits. The OTP (one-time-programmable) program memory uses EPROM cells, distinct from the flash-based PIC16F series.
Key specifications include an external oscillator interface supporting up 4 MHz (4 in the suffix indicates the maximum frequency), an operating voltage range of typically 2.5 V to 6.0 V, and a brown-out reset / power-on reset subsystem. The device integrates a Synchronous Serial Port (SSP) supporting SPI and I²C master/slave modes, a USART for asynchronous serial communication, and three hardware timers (Timer0, Timer1, Timer2) suitable for event counting, input capture, output compare, and PWM generation. Peripherals include a 5-channel 8-bit ADC and a watchdog timer with its own on-chip RC oscillator.
The PIC16C64A-04E/PT is well suited to embedded control applications that demand deterministic interrupt latency, simple peripheral set, and legacy code reuse. Typical use cases include industrial control logic, sensor interfacing, motor drive sequencing, and brown-field designs maintaining compatibility with the classic PIC16 mid-range instruction set.
A key design consideration when using the PIC16C64A-04E/PT is OTP program memory: once programmed, the device cannot be re-programmed. Engineers should use a windowed (JW) sample for prototype iteration and reserve the OTP -04E/PT for production. The 'E' suffix denotes the industrial temperature grade (-40°C to +125°C). Microchip recommends migrating to PIC16F877A for new designs, as the PIC16C64A has been replaced by PIC16C65B per the manufacturer product page.
This page synthesizes drop-in replacement alternatives, parametric comparison data, and application context not aggregated in any single manufacturer or distributor source.
Аналоги без доработки для PIC16C64A-04E/PT — 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 PIC16C64A-04E/PT (тот же форм-фактор и посадочное место) — отличается по Package, Timers, RoHS Status, Operating Temperature Range, Program Memory Type.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC16C65B-04E/PT
✅ Прямая замена✓ В наличии
$2.62 / шт.
Открыть даташит →PIC16F877A-I/PT
✅ Прямая замена✓ В наличии
$4.95 / шт.
Открыть даташит →PIC16C64A-04I/P
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$6.1 / шт.
Открыть даташит →PIC16F877-04/PT
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$5.2 / шт.
Открыть даташит →PIC16C745-I/PT
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
PIC16C64A-04E/PT Максимальные параметры и электрические характеристики
| Architecture | PIC16 8-bit RISC, Harvard |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 x 8 bytes (128 B) |
| Data EEPROM | Not present on PIC16C64A |
| Максимальная тактовая частота | 4 MHz |
| Instruction Throughput | 5 MIPS (200 ns instruction cycle) |
| Operating Voltage Range | 2.5 V to 6.0 V (typical); 4.0 V to 6.0 V for EPROM programming |
| I/O Pins | 33 |
| ADC | 5-channel, 8-bit |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Communication Peripherals | SSP (SPI / I²C), USART |
| Oscillator Type | External (crystal/RC) |
| Watchdog Timer | Yes, with dedicated on-chip RC oscillator |
| Brown-out Reset / POR | Yes |
| Корпус | 44-pin TQFP (10 x 10 mm) |
| Диапазон рабочих температур | -40°C to +125°C (Industrial, 'E' suffix) |
| Тип монтажа | Surface Mount |
| Packaging | Tray |
| Статус RoHS | Compliant (Pb-free package) |
Конфигурация выводов PIC16C64A-04E/PT
| Контакт 1 | RA0/AN0 — PORTA bit 0 / ADC channel 0 |
| Контакт 2 | RA1/AN1 — PORTA bit 1 / ADC channel 1 |
| Контакт 3 | RA2/AN2 — PORTA bit 2 / ADC channel 2 |
| Контакт 4 | RA3/AN3/VREF — PORTA bit 3 / ADC channel 3 / ADC reference |
| Контакт 5 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Контакт 6 | OSC1/CLKIN — Oscillator crystal input / external clock |
| Контакт 7 | OSC2/CLKOUT — Oscillator crystal output / clock out (Fosc/4) |
| Контакт 8 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / Timer1 clock in |
| Контакт 9 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Контакт 10 | RC2/CCP1 — PORTC bit 2 / CCP1 (PWM/capture/compare) |
| Контакт 11 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I²C clock |
| Контакт 12 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I²C data |
| Контакт 13 | RC5/SDO — PORTC bit 5 / SPI data out |
| Контакт 14 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Контакт 15 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Контакт 16 | VSS — Ground reference |
| Контакт 17 | RD0 — PORTD bit 0 |
| Контакт 18 | RD1 — PORTD bit 1 |
| Контакт 19 | RD2 — PORTD bit 2 |
| Контакт 20 | RD3 — PORTD bit 3 |
| Контакт 21 | RD4 — PORTD bit 4 |
| Контакт 22 | RD5 — PORTD bit 5 |
| Контакт 23 | RD6 — PORTD bit 6 |
| Контакт 24 | RD7 — PORTD bit 7 |
| Контакт 25 | RE0/RD — PORTE bit 0 / read control for parallel slave port |
| Контакт 26 | RE1/WR — PORTE bit 1 / write control for parallel slave port |
| Контакт 27 | RE2/CS — PORTE bit 2 / chip select for parallel slave port |
| Контакт 28 | NC — Not connected (per datasheet) |
| Контакт 29 | NC — Not connected (per datasheet) |
| Контакт 30 | NC — Not connected (per datasheet) |
| Контакт 31 | VSS — Ground reference |
| Контакт 32 | MCLR/VPP — Master clear reset (active low) / programming voltage input |
| Контакт 33 | RB0/INT — PORTB bit 0 / external interrupt |
| Контакт 34 | RB1 — PORTB bit 1 |
| Контакт 35 | RB2 — PORTB bit 2 |
| Контакт 36 | RB3 — PORTB bit 3 |
| Контакт 37 | RB4 — PORTB bit 4 |
| Контакт 38 | RB5 — PORTB bit 5 |
| Контакт 39 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Контакт 40 | RB7/PGD — PORTB bit 7 / ICSP data |
| Контакт 41 | VDD — Positive supply voltage |
| Контакт 42 | RA5/AN4/SS — PORTA bit 5 / ADC channel 4 / SPI slave select |
| Контакт 43 | NC — Not connected (per datasheet) |
| Контакт 44 | NC — Not connected (per datasheet) |
Типичное применение
PIC16C64A-04E/PT подходит для 6 применениеs: Industrial Control Logic, Sensor Interface and Data Acquisition, Motor Sequencing and Stepper Control, Brownfield Legacy Replacement, HVAC and Building Automation, Simple Serial Communication Bridges.
Industrial Control Logic
The PIC16C64A-04E/PT's deterministic 200 ns instruction cycle, 5 MIPS throughput, and 33 GPIO pins make it well-suited to industrial control logic in legacy equipment such as PLC I/O modules, conveyor sequencers, and HVAC controllers. Its 5-channel 8-bit ADC is sufficient for thermocouple conditioning via external amplifiers, while the SSP and USART enable Modbus RTU or SPI inter-module communication. The 4 MHz oscillator limit keeps EMI low, important in noisy factory environments, and the industrial -40°C to +125°C temperature grade survives unheated cabinet installations.
Рекомендуется
Sensor Interface and Data Acquisition
With 33 digital I/O and a 5-channel 8-bit ADC, the PIC16C64A-04E/PT fits multi-sensor data acquisition front-ends - particularly strain-gauge bridges, RTD temperature sensors, and 4-20 mA loop transmitters. The 8-bit ADC resolution suits 1% accuracy industrial measurements, and the USART streams digitized sensor data to a host controller. OTP EPROM program memory locks calibration coefficients permanently once the unit is qualified, preventing field tampering. Engineers designing precision instrumentation should consider the PIC16F877A successor for in-field firmware updates.
Рекомендуется
Motor Sequencing and Stepper Control
The PIC16C64A-04E/PT's three timers (T0/T1/T2) provide the hardware basis for stepper motor step-rate generation, acceleration profiles, and PWM chopping current control. Its 33 GPIO pins can drive stepper drivers such as the A3967 or ULN2003A via discrete logic levels, and the SSP peripheral synchronizes multi-axis motion via SPI to the host CNC controller. At 5 MIPS, the firmware can manage up to ~20 kHz step rates without interrupt overrun. The OTP memory is appropriate for production stepper controllers where firmware is finalized after qualification.
Рекомендуется
Brownfield Legacy Replacement
The PIC16C64A-04E/PT is widely deployed as a drop-in firmware-compatible MCU in brownfield replacements where the original PCB was designed around PIC16C64A and the firmware image is already validated. Its instruction set, register map, and peripheral layout are identical to earlier PIC16C64, allowing recompiled firmware to run unchanged. Common legacy applications include point-of-sale terminals, security alarm panels, and elevator controllers. Use of OTP EPROM here is intentional: the firmware is mature and re-programmability is not required.
Рекомендуется
HVAC and Building Automation
HVAC and building automation controllers benefit from the PIC16C64A-04E/PT's 5-channel ADC for temperature/humidity sensing, USART for BACnet MS-TP or Modbus connectivity, and watchdog timer for unattended long-term operation. The -40°C to +125°C industrial temperature grade survives rooftop installations and unconditioned plant rooms. Firmware can implement PID loops at sub-millisecond cadence thanks to the 5 MIPS core, while OTP EPROM locks the control algorithm permanently to meet certification requirements.
Рекомендуется
Simple Serial Communication Bridges
With integrated SSP (SPI/I²C) and USART peripherals, the PIC16C64A-04E/PT is a natural fit for protocol-conversion bridges such as SPI-to-UART or I²C-to-UART repeaters, common in legacy industrial networks. Its 128 B RAM is sufficient for short frame buffering, and the 4 MHz clock keeps power consumption around 5 mA typical for battery-backed bridgers. OTP EPROM provides cost savings versus flash for volume production where firmware is finalized. Pair the MCU with an external RS-485 transceiver for multi-drop industrial networks.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC16C64A-04E/PT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC16C65B-04E/PT | PIC16F877A-I/PT | PIC16C64A-04I/P | PIC16F877-04/PT | PIC16C745-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-44 (10x10 mm) | TQFP-44 - same | TQFP-44 - same | PDIP-40 - NOT pin-compatible | TQFP-44 - same | TQFP-44 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3.5 KB OTP EPROM | 7 KB OTP EPROM | 14 KB Flash | 3.5 KB OTP EPROM | 8 KB Flash | 16 KB OTP EPROM |
| RAM | 128 B | 192 B | 368 B | 128 B | 368 B | 256 B |
| Max Clock | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 20 MHz | 24 MHz |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 29 |
| ADC Channels | 5 x 8-bit | 5 x 8-bit | 8 x 10-bit | 5 x 8-bit | 8 x 10-bit | 5 x 8-bit |
| Program Memory Type | OTP EPROM | OTP EPROM | Flash | OTP EPROM | Flash | OTP EPROM |
Ключевые отличия
- Deterministic 200 ns instruction cycle at 4 MHz (против PIC16F877A-I/PT)
- OTP EPROM locks firmware permanently for production (против PIC16F877A-I/PT)
- Industrial -40°C to +125°C temperature grade (против PIC16C64A-04I/P)
Заметки по проектированию
The PIC16C64A-04E/PT operates from 2.5 V to 6.0 V; ensure VDD rise time meets the power-on reset specification in the datasheet (typically VDD monotonic rise in less than the POR delay window). Decouple VDD with a 100 nF ceramic plus 10 uF tantalum placed within 5 mm of the VDD pin to suppress switching noise from internal peripherals. For ADC accuracy, place a separate AVRC/AVSS pair and a 100 nF decoupling cap on the analog supply pin if your PCB design exposes AVRC separately from VDD.
Because PIC16C64A-04E/PT uses OTP EPROM, once programmed the firmware cannot be changed. Engineering teams must validate firmware on a windowed (JW) sample before committing to OTP production units. MCLR/VPP pin must be held low for reset and pulled to 13 V for programming; leave a programming header accessible on the PCB until final QA. Avoid using the ICSP pins (RB6/RB7) for general-purpose I/O if you plan to reprogram units during development.
Route the OSC1/OSC2 traces symmetrically and as short as possible to the crystal or ceramic resonator. Place the crystal within 5 mm of the MCU and surround it with a ground guard ring to minimize radiated noise coupling to analog inputs. For 4 MHz designs, typical Cload values are 15-33 pF - check the crystal datasheet. Keep ADC traces away from PORTA digital signals to avoid crosstalk into the ADC measurement.
The PIC16C64A-04E/PT TQFP-44 package has a thermal resistance junction-to-ambient (θJA) of approximately 80 °C/W. At 5 V / 25 mA active current and 4 MHz, dissipation is approximately 125 mW, leading to a 10 °C temperature rise above ambient - well within the industrial -40°C to +125°C envelope. For high-temperature installations, ensure the PCB copper pad under the exposed thermal flag (if present) is connected to a ground pour for additional heat sinking.
Информация о соответствии
RoHS compliant per Microchip product page and authorized distributor listings; AEC-Q100 not applicable for this legacy industrial-grade MCU. The 'E' suffix denotes industrial temperature grade (-40°C to +125°C).