PIC16C67T-04/PT - 8-bit MCU 14KB OTP 4MHz 44-TQFP | Microchip
MPN: PIC16C67T-04/PT ✗ Tapus ng BuhayPIC16C67T-04/PT Ulas
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces into one package. The PIC16C6x family is classified as a low-power, high-speed CMOS 8-bit RISC MCU family in Microchip's PIC16C mid-range line, itself part of the broader category of microcontrollers, embedded processors, and finally integrated circuits. The 'OTP' program-memory type means the firmware is written once at production and cannot be field-erased, which lowers unit cost in high-volume applications.
Key features include a Harvard RISC architecture with 35 single-cycle instructions, 14-bit wide instruction word, 8-bit data path, four 8-bit timer/counters, two capture/compare/PWM modules, a synchronous serial port (SSP) supporting SPI and I2C, a USART with addressable asynchronous mode, 8-channel 8-bit analog-to-digital converter, and a programmable watchdog timer with on-chip RC oscillator for reliable operation.
The PIC16C67T-04/PT is built on Microchip's low-power CMOS EPROM/ROM process, enabling commercial, industrial, and extended temperature grades with brown-out reset and power-on reset options. Compared with flash-based PIC16F parts, the OTP variant targets cost-sensitive high-volume applications where firmware is finalized before assembly.
Typical applications include industrial control systems, automotive body and chassis subsystems, consumer appliances, security and alarm panels, and smart sensor front-ends where deterministic real-time response and small footprint matter. The wide 2.5 V to 6.0 V supply range also supports battery-backed instrumentation.
When designing with the OTP variant, plan firmware carefully because the program memory cannot be reprogrammed in-circuit. Ensure emulator/ICE support (MPLAB ICE2000/ICE4000) is available during prototype development, or migrate to the pin-compatible PIC16F877 flash variant for prototypes.
Mga alternatibo na pwedeng ilagay na PIC16C67T-04/PT — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok PIC16C67T-04/PT (parehas na form factor at footprint) — pagkakaiba sa Operating Temperature, Program Memory Size, Package, Core Architecture, Maximum Clock Frequency.
PIC16C67-04/PT
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16C67T-04I/PT
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16C67-10I/PT
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →PIC16C67-20/PT
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →PIC16C67T-04/PT Mga Pinakamataas na Rating at Electrical Characteristics
| Core | PIC16 (8-bit RISC, Harvard) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 14 KB (8K x 14) |
| RAM Size | 368 x 8 bytes |
| EEPROM Data Memory | Not present |
| Maksimum na Taktiko ng Oras | 4 MHz |
| Instruction Set Width | 14-bit |
| Number of I/O Pins | 33 |
| Supply Voltage Range | 2.5 V to 6.0 V |
| Oscillator Type | External |
| Packhaging / Kaso | 44-TQFP (PT) |
| Uri ng Pagpapasok | Surface Mount |
| Packaging | Tape & Reel (TR) |
| Temperature na Operasyon | 0C to +70C (commercial, '04' grade) |
| Tindminan RoHS | Compliant |
Pin Configuration ng PIC16C67T-04/PT
| Pin 1 | MCLR/VPP — Master clear (reset) input / programming voltage |
| Pin 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Pin 8 | RE0/RD/AN5 — PORTE bit 0 / read control / analog input 5 |
| Pin 9 | RE1/WR/AN6 — PORTE bit 1 / write control / analog input 6 |
| Pin 10 | RE2/CS/AN7 — PORTE bit 2 / chip select / analog input 7 |
| Pin 11 | VDD — Positive supply voltage (2.5 V to 6.0 V) |
| Pin 12 | VSS — Ground reference |
| Pin 13 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| Pin 14 | OSC2/CLKOUT — Crystal oscillator output / clock output |
| Pin 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock |
| Pin 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Pin 17 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| Pin 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 21 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Pin 22 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Pin 23 | RD0/PSP0 — PORTD bit 0 / parallel slave port bit 0 |
| Pin 24 | RD1/PSP1 — PORTD bit 1 / parallel slave port bit 1 |
| Pin 25 | RD2/PSP2 — PORTD bit 2 / parallel slave port bit 2 |
| Pin 26 | RD3/PSP3 — PORTD bit 3 / parallel slave port bit 3 |
| Pin 27 | RD4/PSP4 — PORTD bit 4 / parallel slave port bit 4 |
| Pin 28 | RD5/PSP5 — PORTD bit 5 / parallel slave port bit 5 |
| Pin 29 | RD6/PSP6 — PORTD bit 6 / parallel slave port bit 6 |
| Pin 30 | RD7/PSP7 — PORTD bit 7 / parallel slave port bit 7 |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive supply voltage |
| Pin 33 | RB0/INT — PORTB bit 0 / external interrupt |
| Pin 34 | RB1 — PORTB bit 1 |
| Pin 35 | RB2 — PORTB bit 2 |
| Pin 36 | RB3/PGM — PORTB bit 3 / low-voltage programming |
| Pin 37 | RB4 — PORTB bit 4 |
| Pin 38 | RB5 — PORTB bit 5 |
| Pin 39 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 40 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pin 41 | NC — Not connected (per datasheet) |
| Pin 42 | NC — Not connected (per datasheet) |
| Pin 43 | NC — Not connected (per datasheet) |
| Pin 44 | NC — Not connected (per datasheet) |
Tipikal na mga Gamit
PIC16C67T-04/PT ay nararapat para sa 6 aplikasyons: Industrial Process Control, Automotive Body Electronics, Consumer Appliance Control, Security and Alarm Panels, Smart Sensor Front-Ends, Battery-Backed Instrumentation.
Industrial Process Control
The PIC16C67T-04/PT is well suited to industrial process control PLCs and sensor hubs where deterministic real-time response is mandatory. Its 8-bit RISC core executes 35 single-cycle instructions at 4 MHz, giving a 1 microsecond instruction cycle that simplifies PID loop timing. The integrated 8-channel 8-bit ADC reads temperature, pressure, and flow sensors directly, while the two CCP modules generate PWM outputs for valve and motor control.
Inirekomenda
Automotive Body Electronics
The PIC16C67T-04/PT powers body and chassis modules such as central locking, window lift, mirror control, and HVAC blend actuators. The 33 digital I/O pins drive relays, half-bridges, and LED indicators without external expanders, and the USART interfaces with body control LIN/CAN transceivers. For under-hood applications use the industrial -40C to +85C grade variant. The OTP memory locks firmware at production for security.
Inirekomenda
Consumer Appliance Control
White goods such as washing machines, dishwashers, and microwave ovens adopt the PIC16C67T-04/PT for its low cost and deterministic control. The integrated 14 KB OTP memory holds the user interface, motor sequencing, and safety logic, while the 368-byte RAM supports real-time state machines. The wide 2.5 V to 6.0 V supply directly accepts rectified 5 V rails without additional regulation, simplifying BOM.
Inirekomenda
Security and Alarm Panels
Alarm control panels use the PIC16C67T-04/PT to monitor multiple zones, drive piezo sirens, and manage keypad/LED user interfaces. The 33 I/O lines easily handle 16-zone loops, status LEDs, and a 4x4 keypad matrix without external logic. The programmable watchdog timer with on-chip RC oscillator resets the MCU on firmware lockup, critical for unattended security installations. OTP memory prevents firmware tampering.
Inirekomenda
Smart Sensor Front-Ends
Distributed smart sensor nodes use the PIC16C67T-04/PT as a low-cost analog front-end that digitizes sensors and communicates via SPI or I2C to a host controller. The 8-channel 8-bit ADC samples thermocouples, photodiodes, or load cells, while the MSSP peripheral streams results over a 400 kHz I2C bus. With a 4 MHz clock and CMOS design, the part draws only a few milliamps, suitable for loop-powered 4-20 mA instruments.
Inirekomenda
Battery-Backed Instrumentation
Portable test instruments and data loggers benefit from the PIC16C67T-04/PT's wide 2.5 V to 6.0 V supply range and fully static CMOS design. Brown-out reset cleanly shuts down on battery sag, protecting 368-byte RAM contents. The 4 MHz clock draws only a few milliamps, while sleep mode drops consumption to microamp levels. OTP memory secures calibration constants and prevents firmware reverse engineering.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for PIC16C67T-04/PT — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | PIC16C67-04/PT | PIC16C67T-04I/PT | PIC16C67-10I/PT | PIC16C67-20/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (PT) | 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 |
| Program Memory Type | OTP EPROM (14 KB) | OTP EPROM (14 KB) | OTP EPROM (14 KB) | OTP EPROM (14 KB) | OTP EPROM (14 KB) |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 10 MHz | 20 MHz |
| Operating Temperature | 0C to +70C (commercial) | 0C to +70C (commercial) | -40C to +85C (industrial) | -40C to +85C (industrial) | 0C to +70C (commercial) |
| RAM Size | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| Number of I/O Pins | 33 | 33 | 33 | 33 | 33 |
| Packaging Media | Tape & Reel | Tube | Tape & Reel | Tube | Tube |
Pangunahing mga Pagkakaiba
- True silicon-identical drop-in with tube-packaged sibling (kumpara saPIC16C67-04/PT)
- Industrial temperature grade in same footprint (kumpara saPIC16C67T-04I/PT)
- Higher clock speed options available in same package (kumpara saPIC16C67-20/PT)
Talaan ng Disenyo
The PIC16C67T-04/PT uses One-Time Programmable EPROM which cannot be erased or reprogrammed. Validate firmware on a flash-based PIC16F877-04/PT prototype first, then commit the final image to OTP for production. Estimated: each blank OTP unit costs ~USD 5.72 at 1k quantity, so rework is expensive. Always generate CRC checksums on the programmed image and read-back-verify before sealing the device.
Power the PIC16C67T-04/PT from a low-dropout regulator such as the MCP1700 to keep VDD clean within 2.5 V to 6.0 V. Decouple VDD with 100 nF X7R ceramic placed within 5 mm of the VDD pins (11 and 32), plus a bulk 10 uF tantalum. The MCLR/VPP pin requires a 10 kohm pull-up to VDD and a 100 nF decoupling capacitor for reliable brown-out reset operation.
Route the 4 MHz crystal traces between OSC1 (pin 13) and OSC2 (pin 14) symmetrically, with a ground guard ring, to suppress radiated EMI. Place the crystal within 10 mm of the MCU. Keep the MCLR trace short and isolated from high-current switching nodes. The 44-TQFP package has a thermal pad-less bottom; copper pour under the package improves heat dissipation but is not strictly required at 4 MHz speeds.
Impormasyon ng Pagsunod sa Kautusan
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose AEC-Q100 qualified variants for automotive. NRND (Not Recommended for New Designs) per latest Microchip product lifecycle information.