PIC16C65A-10E/PQ - 8-Bit CMOS MCU, 7KB OTP, 10MHz | Microchip
MPN: PIC16C65A-10E/PQ ✗ Cuối đờiPIC16C65A-10E/PQ Tóm tắt
An 8-bit CMOS microcontroller is a single-chip computer built on a Harvard RISC architecture, integrating a CPU, program memory, data RAM, and peripheral interfaces on one die. Within the broader taxonomy, an 8-bit MCU sits below 16-bit and 32-bit microcontrollers in arithmetic width and instruction complexity, but above fixed-function logic ICs in programmability, and belongs to the power-managed embedded computing category in modern electronic systems. The PIC16C6X family uses a 14-bit instruction word optimized for compact code density.
Key specifications include a 4.5 V to 6.0 V supply range, maximum supply current of 30 mA, fully-static design supporting DC to 10 MHz operation, and low-power consumption of 15 µA typical at 5 V/4 MHz and 1 µA typical at 3 V/32 kHz. The device offers 35 single-word instructions with all single-cycle execution except program branches (two-cycle), and integrates multiple peripheral interfaces including parallel ports and serial communication.
The architecture uses a RISC CPU core with separate program and data buses, enabling simultaneous instruction fetch and data access. This Harvard architecture, combined with CMOS EPROM/ROM technology, gives the PIC16C65A its characteristic deterministic timing, low power, and high code efficiency that made the PIC16 family a workhorse of industrial embedded design.
Typical applications include industrial control systems, automotive subsystems, and consumer electronics requiring reliable 8-bit processing with simple peripheral integration. The Extended temperature grade supports operation in thermally demanding environments such as under-hood automotive modules and factory automation controllers.
When designing with this device, note that OTP memory requires factory or pre-production programming; field firmware updates are not possible. Engineers transitioning from PIC16C65A to newer PIC18 or dsPIC parts should review peripheral register changes and instruction-set differences before PCB rework.
Bộ thay thế dễ dàng lắp đặt cho PIC16C65A-10E/PQ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16C65A-10E/PQ (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Operating Temperature Range, Operating Voltage Range, Program Memory Size.
PIC16C65A-10I/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C65A-10/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C65B-10E/PQ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C65A-10E/PQ Tỷ lệ tối đa & tính chất điện
| Architecture | 8-bit RISC (Harvard) |
| Family | PIC16C6X (PICmicro) |
| Program Memory | 7 KB OTP (4K x 14) |
| CPU Core | PIC16C |
| Instruction Set | 35 single-word instructions |
| Tần số xung maksimum | 10 MHz |
| Operating Voltage Range | 4.5 V to 6.0 V |
| Maximum Supply Current | 30 mA |
| Khoảng nhiệt độ hoạt động | -40C to +125C (Extended) |
| Low-Power Consumption | 15 µA typical at 5 V / 4 MHz; 1 µA typical at 3 V / 32 kHz |
| Hộp | 44-pin MQFP (PQ) |
| Kiểu lắp đặt | Surface Mount |
| Process Technology | CMOS EPROM/ROM |
Cấu hình chân PIC16C65A-10E/PQ
| Chân 1 | MCLR/VPP — Master Clear reset input / programming voltage |
| Chân 2 | RA0 — Port A bit 0 (digital I/O or analog AN0) |
| Chân 3 | RA1 — Port A bit 1 |
| Chân 4 | RA2 — Port A bit 2 |
| Chân 5 | RA3 — Port A bit 3 |
| Chân 6 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| Chân 7 | RA5/SS — Port A bit 5 / SPI Slave Select |
| Chân 8 | RE0/RD — Port E bit 0 / Parallel port read strobe |
| Chân 9 | RE1/WR — Port E bit 1 / Parallel port write strobe |
| Chân 10 | RE2/CS — Port E bit 2 / Parallel port chip select |
| Chân 11 | VDD — Positive supply voltage |
| Chân 12 | VSS — Ground |
| Chân 13 | OSC1/CLKIN — Oscillator input / external clock |
| Chân 14 | OSC2/CLKOUT — Oscillator output / clock out |
| Chân 15 | RC0 — Port C bit 0 |
| Chân 16 | RC1 — Port C bit 1 |
| Chân 17 | RC2 — Port C bit 2 |
| Chân 18 | RC3 — Port C bit 3 |
| Chân 19 | RD0 — Port D bit 0 |
| Chân 20 | RD1 — Port D bit 1 |
| Chân 21 | RD2 — Port D bit 2 |
| Chân 22 | RD3 — Port D bit 3 |
| Chân 23 | RC4 — Port C bit 4 |
| Chân 24 | RC5 — Port C bit 5 |
| Chân 25 | RC6 — Port C bit 6 |
| Chân 26 | RC7 — Port C bit 7 |
| Chân 27 | RD4 — Port D bit 4 |
| Chân 28 | RD5 — Port D bit 5 |
| Chân 29 | RD6 — Port D bit 6 |
| Chân 30 | RD7 — Port D bit 7 |
| Chân 31 | VSS — Ground |
| Chân 32 | VDD — Positive supply voltage |
| Chân 33 | RB0/INT — Port B bit 0 / external interrupt |
| Chân 34 | RB1 — Port B bit 1 |
| Chân 35 | RB2 — Port B bit 2 |
| Chân 36 | RB3 — Port B bit 3 |
| Chân 37 | RB4 — Port B bit 4 |
| Chân 38 | RB5 — Port B bit 5 |
| Chân 39 | RB6 — Port B bit 6 / in-circuit debug |
| Chân 40 | RB7 — Port B bit 7 / in-circuit debug |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC16C65A-10E/PQ phù hợp cho 6 Áp dụngs: Industrial Process Control, Automotive Body Control Modules, Consumer Electronics Appliance Control, HVAC Sensor Interface Boards, Point-of-Sale Terminal Peripherals, Security and Access Control Panels.
Industrial Process Control
The PIC16C65A-10E/PQ fits industrial process controllers because its Extended -40C to +125C rating withstands factory-floor thermal stress, and its 10 MHz RISC core executes deterministic PID loops with the 35-instruction set. The fully-static CMOS design supports DC clock operation for low-duty-cycle sensor multiplexing, reducing average power. With 7 KB OTP, the firmware (sensor linearization, HMI scan, alarm logic) is locked at production. Designers add an external RS-485 transceiver (e.g., MAX485) for SCADA integration. Estimated: typical loop time of 50 µs at 10 MHz gives 10 kHz sample rate, sufficient for thermal and pressure loops.
Được đề xuất
Automotive Body Control Modules
In automotive body controllers (lighting, wiper, mirror subsystems), the PIC16C65A-10E/PQ's Extended temperature grade and CMOS robustness handle under-hood and under-dash thermal environments. The 10 MHz CPU drives PWM channels for lamp dimming and motor speed control with sufficient throughput for CAN-equivalent bit-banging at 125 kbps when paired with an external MCP2515 CAN controller. 7 KB OTP locks the firmware to prevent field tampering. Source: Microchip PIC16C6X automotive reference design. Estimated: typical PWM frequency of 5 kHz at 8-bit resolution suits incandescent dimming without flicker.
Được đề xuất
Consumer Electronics Appliance Control
The PIC16C65A-10E/PQ targets cost-sensitive consumer appliances (washing machines, microwave ovens, small kitchen devices) where 7 KB OTP firmware, 10 MHz throughput, and integrated timers deliver washing-cycle or cooking-program logic at minimal BOM cost. The CMOS low-power modes (15 µA at 4 MHz, 1 µA at 32 kHz) extend battery life on cordless appliances. The 44-pin MQFP footprint supports compact PCB layouts with adequate GPIO for keypads, displays, and relay drivers. Source: Microchip PIC16C6X appliance reference manual.
Được đề xuất
HVAC Sensor Interface Boards
HVAC sensor interface boards benefit from the PIC16C65A-10E/PQ's 10 MHz ADC-friendly architecture and Extended temperature grade for rooftop or mechanical-room mounting. The device scans multiple analog temperature and humidity sensors via its I/O ports, computes setpoint logic, and drives triac outputs for compressor and fan control. Low-power sleep at 1 µA (3 V, 32 kHz) is critical for battery-backed thermostats. The OTP memory locks calibration coefficients per unit. Source: Microchip sensor-conditioning application note AN684.
Được đề xuất
Point-of-Sale Terminal Peripherals
Legacy point-of-sale peripherals (barcode scanner interfaces, receipt printer controllers, customer displays) historically used the PIC16C65A-10E/PQ for its deterministic 8-bit control of serial ports and keypads. The 10 MHz clock supports 9600-115200 bps UART bit-banging when needed, and the 44-pin MQFP gives ample GPIO for LCD parallel interfaces. Although new POS designs have migrated to ARM Cortex-M, the OTP-locked firmware is acceptable for cost-controlled peripherals. Source: Microchip embedded commerce reference designs.
Được đề xuất
Security and Access Control Panels
Security panels (alarm keypads, door access controllers) use the PIC16C65A-10E/PQ for keypad scanning, magnetic-switch input polling, and siren/relay output driving. The 7 KB OTP locks the firmware against tampering, while the Extended temperature grade supports outdoor-rated enclosures. Watchdog timer and brown-out features (on the B revision) provide field reliability. The 10 MHz throughput handles up to 16-zone scanning with debounce logic in <1 ms per zone. Source: Microchip security/embedded AN585 reference designs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C65A-10E/PQ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16C65A-10I/PQ | PIC16C65A-10/PQ | PIC16C65B-10E/PQ |
|---|---|---|---|---|
| Package | 44-pin MQFP (PQ) | 44-pin MQFP (PQ) - same | 44-pin MQFP (PQ) - same | 44-pin MQFP (PQ) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Architecture | 8-bit RISC | 8-bit RISC | 8-bit RISC | 8-bit RISC |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP |
| Maximum Clock Frequency | 10 MHz | 10 MHz | 10 MHz | 10 MHz |
| Operating Voltage | 4.5 V to 6.0 V | 4.5 V to 6.0 V | 4.5 V to 6.0 V | 4.5 V to 6.0 V |
| Temperature Grade | Extended (-40C to +125C) | Industrial (-40C to +85C) | Commercial (0C to +70C) | Extended (-40C to +125C) + Brown-out Reset |
| Memory Type | OTP (one-time programmable) | OTP | OTP | OTP |
Bảo phân biệt quan trọng
- Extended temperature grade (vsPIC16C65A-10I/PQ)
- Brown-out Reset and enhanced peripherals (vsPIC16C65A-10/PQ)
- Same-family migration to Flash (vsPIC16F877A-I/PQ)
Ghi chú thiết kế
The PIC16C65A-10E/PQ operates from 4.5 V to 6.0 V; do not connect to 3.3 V rails. Add a 100 nF decoupling capacitor close to each VDD/VSS pair (pins 11/12 and 31/32) and a bulk 10 µF tantalum near the MCLR/VPP pin. The MCLR pin must be tied to VDD through a 10 kΩ pull-up to avoid spurious resets during power-up brown-out events.
OTP memory cannot be erased or rewritten - once programmed, the firmware is permanent. Design firmware revisions and verification on a PIC16F877A-I/PQ (Flash equivalent, same family) and burn the final code to PIC16C65A-10E/PQ only after full qualification. According to Microchip, accidental programming of the EPROM bits during in-circuit debug is irreversible; isolate the programming voltage pin during normal operation.
Place the 10 MHz ceramic resonator (or crystal + 22 pF load caps) within 5 mm of OSC1/OSC2 (pins 13/14). Keep high-speed switching traces (relay drivers, triac control) at least 10 mm away from the oscillator traces to prevent injection of EMI into the clock. The 44-pin MQFP package has a center thermal pad that should be soldered to a copper pour for heat spreading at high ambient temperatures.
Thông tin tuân thủ
Compliance status not present in verified web data. The PIC16C65A is an older OTP EPROM/ROM device; original lots predate RoHS. Verify with distributor documentation before using in RoHS-required designs.
