PIC16C67-04E/PT - 14KB OTP 8-bit MCU, 4MHz, 44-TQFP | Microchip
MPN: PIC16C67-04E/PT ✗ Cuối đờiPIC16C67-04E/PT Tóm tắt
A PIC microcontroller (Programmable Interface Controller) is a family of 8-bit, 16-bit, and 32-bit RISC-based microcontrollers originally developed by General Instrument's Microelectronics Division and popularized by Microchip Technology. PIC MCUs occupy the broader taxonomy of microcontrollers (MCU) -> embedded microprocessors -> semiconductors. They integrate a CPU core, program memory (ROM/EPROM/Flash), data memory (RAM), non-volatile EEPROM, timers, capture/compare/PWM peripherals, analog-to-digital converters, and serial communication peripherals (USART, SPI, I²C) on a single chip. The PIC16C family is the mid-range line, sitting between the baseline PIC10/12/16 families and the enhanced PIC17/18 families, and is the family from which the later flash-based PIC16F series evolved.
Key features of the PIC16C67-04E/PT include its 14-bit instruction word architecture, Harvard bus structure, 8-level deep hardware stack, and four interrupt sources. The device supports a wide operating voltage range and offers three timer/counter modules, a Capture/Compare/PWM (CCP) module, a synchronous serial port (SSP) supporting SPI and I²C, a USART for asynchronous serial communication, an 8-bit parallel slave port, and a watchdog timer with its own on-chip RC oscillator for reliable operation.
Typical applications for the PIC16C67-04E/PT include industrial control systems, automotive body electronics, consumer appliance control, sensor signal conditioning front-ends, low-speed data acquisition, and embedded control subsystems requiring up to 33 I/O lines. The wide operating voltage range and external oscillator support make it adaptable to systems with non-standard clock sources, while the 44-pin TQFP package provides a compact footprint for space-constrained designs.
When designing with this device, engineers should note that PIC16C67 is OTP (one-time programmable) and the -04 speed grade limits the oscillator to 4 MHz (vs. the -10 and -20 speed grades available). The 'E' temperature grade designates the extended temperature range (-40°C to +125°C) versus the standard industrial range (-40°C to +85°C of the 'I' suffix).
Bộ thay thế dễ dàng lắp đặt cho PIC16C67-04E/PT — 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 PIC16C67-04E/PT (cùng hình factor và footprint) — khác nhau ở Timers, Package, Maximum Clock Frequency, Program Memory Type, RoHS Status.
PIC16F877-04/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F877A-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C66-04E/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C67-04I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C67-10E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C67-04E/PT Tỷ lệ tối đa & tính chất điện
| Program Memory Size | 14 KB (8K x 14) |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| RAM Size | 368 x 8 bytes |
| EEPROM Size | None (OTP only) |
| Number of I/O Pins | 33 |
| Tần số xung maksimum | 4 MHz |
| Instruction Set Architecture | 8-bit RISC, 14-bit instruction word |
| Number of Instructions | 35 |
| Hardware Stack | 8-level deep |
| Oscillator Type | External |
| Hộp | 44-pin TQFP (PT) |
| Operating Voltage Range | 2.5 V to 6.0 V |
| Temperature Grade | Extended (-40C to +125C) |
| Number of Interrupt Sources | 4 |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Communication Peripherals | USART/SCI, SSP (SPI/I2C), Parallel Slave Port |
| CCP Modules | 1 (Capture/Compare/PWM) |
| Watchdog Timer | Yes (with dedicated on-chip RC oscillator) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Non-compliant (contains lead in TQFP finish) |
Cấu hình chân PIC16C67-04E/PT
| Chân 1 | MCLR/VPP — Master Clear (Reset) input / Programming voltage |
| Chân 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Chân 4 | RA2/AN2/VREF- — PORTA bit 2 / Analog input 2 / Voltage reference negative |
| Chân 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / Voltage reference positive |
| Chân 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 7 | RA5/SS/AN4 — PORTA bit 5 / Slave Select / Analog input 4 |
| Chân 8 | RE0/RD/AN5 — PORTE bit 0 / Read control / Analog input 5 |
| Chân 9 | RE1/WR/AN6 — PORTE bit 1 / Write control / Analog input 6 |
| Chân 10 | RE2/CS/AN7 — PORTE bit 2 / Chip Select / Analog input 7 |
| Chân 11 | VDD — Positive power supply |
| Chân 12 | VSS — Ground |
| Chân 13 | OSC1/CLKIN — Oscillator crystal input / External clock input |
| Chân 14 | OSC2/CLKOUT — Oscillator crystal output / Clock output |
| Chân 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Chân 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 output |
| Chân 17 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM1 output |
| Chân 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Chân 19 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| Chân 20 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| Chân 21 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| Chân 22 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| Chân 23 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Chân 24 | RC5/SDO — PORTC bit 5 / SPI data out |
| Chân 25 | RC6/TX/CK — PORTC bit 6 / USART transmit / USART clock |
| Chân 26 | RC7/RX/DT — PORTC bit 7 / USART receive / USART data |
| Chân 27 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| Chân 28 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| Chân 29 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| Chân 30 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| Chân 31 | VSS — Ground |
| Chân 32 | NC — Not connected (per datasheet) |
| Chân 33 | RB0/INT — PORTB bit 0 / External interrupt |
| Chân 34 | RB1 — PORTB bit 1 |
| Chân 35 | RB2 — PORTB bit 2 |
| Chân 36 | RB3/PGM — PORTB bit 3 / Programming mode |
| Chân 37 | RB4 — PORTB bit 4 |
| Chân 38 | RB5 — PORTB bit 5 |
| Chân 39 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Chân 40 | RB7/PGD — PORTB bit 7 / ICSP data |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | VDD — Positive power supply |
| Chân 44 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC16C67-04E/PT phù hợp cho 6 Áp dụngs: Industrial Process Control, Automotive Body Electronics, Consumer Appliance Control, Sensor Signal Conditioning, Low-Speed Data Acquisition, Embedded Control Subsystems.
Industrial Process Control
The PIC16C67-04E/PT fits industrial process control applications where deterministic 8-bit control is needed with up to 33 I/O for sensor interfacing and actuator driving. Its 14KB OTP program memory accommodates complex ladder-logic-style state machines, while the USART enables Modbus RTU communication with PLCs and HMIs. The 4 MHz clock provides sufficient bandwidth for PID loop execution at 10 ms control intervals, and the extended -40C to +125C temperature grade handles factory-floor environments. Use the PIC16C67-04E/PT when legacy fieldbus protocols or 5V-only signal chains are required; migrate to PIC16F877A for new designs.
Được đề xuất
Automotive Body Electronics
The PIC16C67-04E/PT serves automotive body electronics modules such as climate control panels, lighting controllers, and seat adjustment systems. Its 33 I/O lines multiplex well with switch matrices and LED driver arrays, and the CCP module generates PWM for motor speed control and dimming. The extended -40C to +125C temperature grade exceeds automotive under-hood requirements and matches cabin-electronics specs. However, for new automotive designs the AEC-Q100-qualified PIC16F877A-I/PT is preferred over the PIC16C67-04E/PT, which lacks automotive qualification and uses obsolete OTP memory.
Được đề xuất
Consumer Appliance Control
The PIC16C67-04E/PT is well suited to consumer appliance controllers like washing machines, microwave ovens, and air conditioners where cost-sensitive 8-bit control dominates. Its USART interfaces with inverter boards and sensor modules, while the parallel slave port connects to HMI display controllers. The 14KB OTP holds full appliance state-machine firmware with self-test routines. At 5V operation and 4MHz, power consumption stays under 20 mA active, meeting energy-star standby targets. For modern appliances with touch interfaces, consider the PIC16F877A or PIC18F equivalents.
Được đề xuất
Sensor Signal Conditioning
The PIC16C67-04E/PT handles sensor signal conditioning front-ends for industrial measurement systems, combining analog comparator inputs with digital I/O for sensor multiplexing. Its 4 MHz clock supports 1 kHz sample rates on multiplexed RTD and thermocouple inputs, and the USART streams processed data to upstream SCADA systems. The 368-byte RAM buffers 16-bit ADC data from external sigma-delta converters like the MCP3551. The wide 2.5V to 6.0V supply range accommodates 3.3V and 5V sensor rails directly, simplifying power tree design in distributed measurement nodes.
Được đề xuất
Low-Speed Data Acquisition
The PIC16C67-04E/PT forms the core of low-speed multi-channel data acquisition systems where 8-bit resolution and 1 kSPS aggregate throughput are sufficient. Its 33 I/O lines drive analog multiplexer selection logic for up to 32 single-ended input channels, and the SSP module reads external ADC results over SPI at up to 1 MHz clock. The 14KB OTP stores channel calibration coefficients and linearization tables, while the USART streams acquired data to a host PC. The extended temperature grade supports outdoor and industrial cabinet installations without additional thermal management.
Được đề xuất
Embedded Control Subsystems
The PIC16C67-04E/PT functions as a satellite controller in distributed embedded systems, handling local I/O expansion and serial gateway duties between field devices and a central processor. Its USART bridges RS-232 or RS-485 to a main controller, while the SSP supports SPI peripherals like EEPROM and real-time clocks. With 33 I/O and three timers, it can independently manage local closed-loop control tasks such as motor speed regulation or PWM solenoid driving. The 44-pin TQFP package fits on compact 50 mm x 50 mm satellite PCBs common in modular industrial architectures.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C67-04E/PT — 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 | PIC16F877-04/PT | PIC16F877A-I/PT | PIC16C66-04E/PT | PIC16C67-04I/PT | PIC16C67-10E/PT |
|---|---|---|---|---|---|---|
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 14 KB OTP | 14 KB Flash | 14 KB Flash | 8 KB OTP | 14 KB OTP | 14 KB OTP |
| Memory Type | OTP EPROM | Flash (reprogrammable) | Flash (reprogrammable) | OTP EPROM | OTP EPROM | OTP EPROM |
| Max Clock Frequency | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 4 MHz | 10 MHz |
| RAM Size | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Temperature Grade | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Extended -40C to +125C |
| Lifecycle Status | Obsolete | Active | Active | Obsolete | Obsolete | Obsolete |
Bảo phân biệt quan trọng
- Flash-based reprogrammability (vsPIC16F877-04/PT)
- Lower memory variant in identical footprint (vsPIC16C66-04E/PT)
- Higher clock speed option available (vsPIC16C67-10E/PT)
Ghi chú thiết kế
The PIC16C67-04E/PT operates from 2.5V to 6.0V, with 5V being the typical industrial design target. Place a 100 nF decoupling capacitor as close as possible to each VDD pin (pins 11 and 43) and a single 10 uF bulk capacitor at the board's power entry. For battery-backed applications, the brown-out detect circuit triggers a reset when VDD drops below approximately 4V (at 5V nominal), preserving RAM contents. Add a series ferrite bead or 10 ohm resistor on the VDD trace if the supply is shared with inductive loads like relays or motors.
Route the OSC1/OSC2 traces (pins 13 and 14) as short and symmetric as possible, with the crystal or resonator placed within 10 mm of the MCU. Keep these traces away from high-current switching nodes such as relay driver outputs. The MCLR/VPP pin (pin 1) should be pulled up to VDD through a 10 kohm resistor with a 100 nF capacitor to ground for noise immunity; this RC time constant also sets the power-on reset delay. The ICSP pins RB6/PGC (pin 39) and RB7/PGD (pin 40) must be accessible in the final layout for in-circuit programming and debugging.
Do not confuse the PIC16C67 (14KB OTP, 368 RAM) with the PIC16C66 (8KB OTP, 368 RAM) when ordering; the package suffix is identical but the firmware exceeds 8KB on PIC16C66. The '-04' speed grade limits the oscillator to 4 MHz; attempting to drive the device at 20 MHz will result in erratic execution. PIC16C OTP parts cannot be erased or reprogrammed - any code bug requires physical replacement of the IC. For new designs requiring field updates, always choose the flash-based PIC16F877A instead. Watch out for counterfeit PIC16C parts from unauthorized brokers; always verify via Microchip's part marking decoder.
Thông tin tuân thủ
PIC16C67-04E/PT is non-RoHS due to lead in TQFP lead finish. Not AEC-Q100 qualified (use PIC16F877A-I/PT for automotive). REACH compliant per Microchip product declaration. Conflict minerals compliant per Microchip CMRT filing.