PIC16C67-10I/PT - 8-Bit 10MHz 14KB OTP MCU, 44-TQFP | Microchip
MPN: PIC16C67-10I/PT ✗ Cuối đờiPIC16C67-10I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a small single-chip computer that integrates a CPU, non-volatile program memory, working RAM, peripheral set (timers, USART, ADC, I/O), and an interrupt controller on a single die. PIC microcontrollers sit within the broader category of microcontrollers -> microcontrollers (embedded computing) -> semiconductors. The PIC16C family (PIC mid-range 14-bit instruction set) is engineered for deterministic real-time control with a fully static design, allowing the clock to be stopped without losing internal state.
Key features of the PIC16C67-10I/PT include the 14-bit instruction word (which gives 8K single-word instructions per 14KB array), an integrated 8-bit A/D converter with multiple input channels, two 8-bit timers plus one 16-bit timer/counter, a USART module with synchronous/asynchronous modes, a watchdog timer with on-chip RC oscillator, and a wide 2.5V to 6.0V operating voltage range. The device also supports in-circuit serial programming (ICSP) via the RB6/RB7 pins for OTP reprogramming during prototyping.
Architecture details: the PIC16C67 uses a Harvard architecture with separate program and data buses, allowing instruction fetch and data access in a single cycle. The 14-bit instruction word provides richer opcode encoding than 12-bit PIC cores, enabling larger immediate operands and direct addressing across the full data memory. The fully static design allows low-power operation by halting the clock, while the brown-out reset and power-on reset circuits simplify supply supervision.
Typical applications span industrial control and instrumentation, HVAC actuator and sensor interfaces, motor control front-ends, automotive body and chassis subsystems, white-goods and appliance controllers, and embedded data-acquisition front ends that need parallel I/O and a USART for host communication. The wide temperature range also makes it suitable for outdoor or factory-floor environments.
Design consideration: OTP memory cannot be re-programmed in the field - designs using the PIC16C67-10I/PT must either be masked-ROM programmed in volume (PIC16CR67) or moved to a flash-based equivalent such as the PIC16F877 for field-updatable firmware. Plan programming flow accordingly.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16C67-10I/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 PIC16C67-10I/PT (cùng hình factor và footprint) — khác nhau ở Operating Temperature, ADC, Program Memory Type, Package, Timers.
PIC16C67-10/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C67-04I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C67-04/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16C66-10I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F877-10I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C67-10I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit (mid-range, 14-bit instruction) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 14 KB (8K x 14) |
| RAM Size | 368 x 8 bytes |
| EEPROM Data Memory | None (not present on this family) |
| Maximum CPU Speed | 10 MHz |
| Supply Voltage (Vcc) | 4.0 V to 6.0 V |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial, "I") |
| Number of I/O Pins | 33 |
| Hộp | 44-TQFP (PT), 10 x 10 mm |
| Kiểu lắp đặt | Surface Mount |
| Timers | 2 x 8-bit + 1 x 16-bit (TMR0 / TMR1 / TMR2) |
| A/D Converter | 8-bit, 8 channels |
| Communication | 1 x USART (SCI/SPI synchronous+async) |
| Oscillator | External (XT/HS/LP/RC modes selectable) |
| Watchdog Timer | Yes, with on-chip RC oscillator |
| Brown-out Reset / POR | Yes |
| ICSP (In-Circuit Serial Programming) | Yes (RB6/RB7) |
| Packaging | Tube |
| Trạng thái RoHS | Compliant (per distributor listing) |
Cấu hình chân PIC16C67-10I/PT
| Chân 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| Chân 2 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| Chân 3 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| Chân 4 | RA2/AN2 — Port A bit 2 / Analog input 2 |
| Chân 5 | RA3/AN3/VREF — Port A bit 3 / Analog input 3 / VREF+ |
| Chân 6 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| Chân 7 | RA5/AN4/SS — Port A bit 5 / Analog input 4 / SPI slave select |
| Chân 8 | RE0/RD/AN5 — Port E bit 0 / Read control / Analog input 5 |
| Chân 9 | RE1/WR/AN6 — Port E bit 1 / Write control / Analog input 6 |
| Chân 10 | RE2/CS/AN7 — Port E bit 2 / Chip select / Analog input 7 |
| Chân 11 | VDD — Positive supply (4.0V to 6.0V) |
| Chân 12 | VSS — Ground |
| Chân 13 | OSC1/CLKI — Oscillator input / external clock input |
| Chân 14 | OSC2/CLKO — Oscillator output / clock output |
| Chân 15 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer 1 oscillator output / Timer 1 clock |
| Chân 16 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer 1 oscillator input / CCP2 |
| Chân 17 | RC2/CCP1 — Port C bit 2 / CCP1 (PWM/capture/compare) |
| Chân 18 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| Chân 19 | RD0/PSP0 — Port D bit 0 / Parallel Slave Port bit 0 |
| Chân 20 | RD1/PSP1 — Port D bit 1 / Parallel Slave Port bit 1 |
| Chân 21 | RD2/PSP2 — Port D bit 2 / Parallel Slave Port bit 2 |
| Chân 22 | RD3/PSP3 — Port D bit 3 / Parallel Slave Port bit 3 |
| Chân 23 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| Chân 24 | RC5/SDO — Port C bit 5 / SPI data out |
| Chân 25 | RC6/TX/CK — Port C bit 6 / USART TX / USART clock |
| Chân 26 | RC7/RX/DT — Port C bit 7 / USART RX / USART data |
| Chân 27 | RD4/PSP4 — Port D bit 4 / Parallel Slave Port bit 4 |
| Chân 28 | RD5/PSP5 — Port D bit 5 / Parallel Slave Port bit 5 |
| Chân 29 | RD6/PSP6 — Port D bit 6 / Parallel Slave Port bit 6 |
| Chân 30 | RD7/PSP7 — Port D bit 7 / Parallel Slave Port bit 7 |
| Chân 31 | VSS — Ground |
| Chân 32 | VDD — Positive supply (4.0V to 6.0V) |
| 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/PGD — Port B bit 6 / ICSP data |
| Chân 40 | RB7/PGC — Port B bit 7 / ICSP clock |
| 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
PIC16C67-10I/PT phù hợp cho 6 Áp dụngs: Industrial Process Control Front End, HVAC Actuator and Damper Controller, Automotive Body and Chassis Subsystems, White-Goods and Appliance Controllers, Embedded Data-Acquisition Front End, Educational and Hobbyist Embedded Platform.
Industrial Process Control Front End
The PIC16C67-10I/PT's 33 digital I/O lines, 8-channel 8-bit ADC and USART make it well-suited to industrial process control front ends that aggregate sensor inputs and forward filtered readings to a host PLC over RS-232/RS-485. Operating from 4.0V to 6.0V at up to 10 MIPS, it samples multiple analog channels, runs deterministic control loops in software and drives actuator outputs through its PWM/CCP and timer peripherals. The -40C to +85C industrial temperature rating permits deployment in factory-floor cabinets and outdoor enclosures. Pin-to-pin compatibility with the flash-based PIC16F877-10I/PT allows easy migration to in-field reprogrammable firmware when product life extends beyond the OTP silicon stock.
Được đề xuất
HVAC Actuator and Damper Controller
The PIC16C67-10I/PT is a natural fit for HVAC damper and valve actuators that need multiple PWM channels, ADC inputs for temperature/pressure sensors, and a USART for communicating with the building automation bus. Three timers (2x 8-bit, 1x 16-bit) and dual CCP/PWM blocks generate precise servo and proportional-valve drive waveforms; the 8-channel ADC reads thermistor or 0-10V feedback signals. Industrial temperature range and OTP memory reduce the risk of accidental firmware tampering in sealed building-control hardware. Same 44-TQFP footprint simplifies PCB reuse across the PIC16C66, PIC16C67 and PIC16F877 family variants.
Được đề xuất
Automotive Body and Chassis Subsystems
With 33 I/O and a USART, the PIC16C67-10I/PT is widely used in automotive body controllers for low-speed functions such as seat-position memory, mirror folding, interior lighting dimming and wiper timing. The 14KB program memory accommodates state-machine logic for multiple subsystems without external memory expansion; 8-channel ADC reads battery voltage, switch positions and analog sensors. Designers migrate to PIC16F877A or PIC16F887A for AEC-Q100 qualified automotive programs while keeping the same 44-TQFP footprint. Wide 4.0V to 6.0V supply tolerates crank-droop and load-dump events after external TVS protection.
Được đề xuất
White-Goods and Appliance Controllers
White-goods and small-appliance control boards rely on the PIC16C67-10I/PT's combination of OTP memory, ample I/O and integrated ADC to keep BOM cost low while supporting wash-cycle timers, motor-direction logic, user-interface key scanning and triac phase-angle control. The 14KB program memory holds full state-machine plus display drivers, and the 33 I/O pins drive LED/LCD indicators, keypad matrix and zero-cross detection. Industrial temperature grade supports unheated appliance enclosures. The flash-based PIC16F877A-I/PT is the recommended long-term replacement for new SKUs that need post-sale firmware updates.
Được đề xuất
Embedded Data-Acquisition Front End
The PIC16C67-10I/PT serves as a low-cost data-acquisition front end that aggregates analog and digital channels and forwards packets over its USART to a host PC or embedded gateway. Its 8-channel 8-bit ADC samples at up to ~20 kS/s aggregate (per PIC16C6X datasheet) which is adequate for thermocouple-multiplexed, slow-process telemetry. The USART plus external RS-485 transceiver (MAX485) supports multi-drop 4-20 mA replacement networks; OTP memory protects calibration constants from unintended erasure. Engineers designing new DAQ modules should evaluate PIC16F877-10I/PT for the same footprint and the convenience of flash-based field calibration updates.
Được đề xuất
Educational and Hobbyist Embedded Platform
The PIC16C67-10I/PT and its wider PIC16C6X family are a classic teaching platform for 8-bit embedded programming thanks to their deterministic Harvard architecture, simple MPLAB toolchain and abundant textbook material. The 14KB OTP, 368-byte RAM, three timers and USART cover every common lab exercise from interrupt-driven keypads to UART bridges, while the 44-TQFP (PT) package exposes 33 breadboard-friendly I/O when mounted on a breakout. Modern classroom kits often swap in the flash-based PIC16F877A-I/PT to allow repeated programming, but the original PIC16C67-10I/PT remains useful for understanding EPROM window erase and OTP programming flows.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C67-10I/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 | PIC16C67-10/PT | PIC16C67-04I/PT | PIC16C67-04/PT | PIC16C66-10I/PT | PIC16F877-10I/PT |
|---|---|---|---|---|---|---|
| Package | 44-TQFP (PT), 10x10 mm | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | OTP EPROM (14 KB / 8K x 14) | OTP EPROM (14 KB) | OTP EPROM (14 KB) | OTP EPROM (14 KB) | OTP EPROM (8 KB) | Flash (14 KB) |
| Maximum CPU Speed | 10 MHz | 10 MHz | 4 MHz | 4 MHz | 10 MHz | 10 MHz |
| Operating Temperature | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Number of I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| RAM Size | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| A/D Converter | 8-bit, 8 channels | 8-bit, 8 channels | 8-bit, 8 channels | 8-bit, 8 channels | 8-bit, 8 channels | 10-bit, 8 channels |
| Memory Type | OTP (one-time programmable) | OTP | OTP | OTP | OTP | Flash (field-updatable) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Active |
Bảo phân biệt quan trọng
- Highest-density OTP option in the PIC16C6X family (vsPIC16C66-10I/PT)
- Direct flash migration path on the same footprint (vsPIC16C67-10I/PT vs PIC16F877-10I/PT)
- Industrial temperature OTP option in 44-TQFP (vsPIC16C67-10/PT)
- Faster 10MHz speed grade versus 4MHz option (vsPIC16C67-04I/PT)
Ghi chú thiết kế
OTP EPROM cannot be re-programmed. A single bad firmware build requires scrapping the part. For development, place the PIC16C67-10I/PT in a socketed daughter-card so a fresh unit can be swapped in for each iteration; move to the flash-based PIC16F877-10I/PT once firmware stabilizes. Verify programming voltage timing against the PIC16C6X datasheet programming specification - VPP rise time and MCLR/VPP sequence are common sources of verify errors.
The PIC16C67-10I/PT requires both VDD pins (11 and 32) and both VSS pins (12 and 31) on the 44-TQFP to be connected. Decouple each VDD pin with a 100nF ceramic capacitor placed within 5 mm of the pin to suppress switching noise from the internal state machine. Add a 10uF bulk capacitor near the package. Brown-out reset is configurable via configuration fuses - enable it for industrial supplies prone to sag.
Keep the OSC1/OSC2 traces short and surrounded by ground pour to minimize EMI coupling; for crystal mode (XT) place load capacitors within 3 mm of the oscillator pins. Route the MCLR/VPP line away from high-frequency switching nodes - accidental glitches on MCLR can spuriously reset the part. When using ICSP on a populated board, isolate the ICSP connector's PGD/PGC from any in-circuit load with series resistors to allow in-field programming without disconnecting the target.
Estimated: at 10MHz CPU clock and 33 I/O toggling, simultaneous-switching output (SSO) noise can inject 100-200 mV of ground bounce on a poorly-decoupled board. Source-terminate fast edges (>5 ns) with 33-47 ohm series resistors and keep a solid uninterrupted ground plane under the TQFP land pattern. ADC accuracy is sensitive to digital switching - place analog inputs on PORTA pins and avoid toggling nearby PORTB bits during ADC conversions.
Estimated: at 10MHz and 6V Vcc, the PIC16C67-10I/PT draws roughly 10-15 mA active, dissipating 60-90 mW. The 44-TQFP package has theta_JA around 50-60 C/W on a 4-layer 1-oz PCB, giving a junction rise of 3-5 C above ambient - well within the -40 C to +85 C operating range. For sealed enclosures with no airflow, derate CPU clock to 4 MHz (use PIC16C67-04 grade) if internal ambient exceeds 70 C.
Thông tin tuân thủ
RoHS compliance per Heisener and distributor listings. The -I industrial temperature variant is not AEC-Q100 qualified; for automotive applications use the flash-based PIC16F877A-I/PT automotive grade instead. Halogen-free status not explicitly stated in the verified data.
