PIC16C67T-10/PT - 14KB OTP 8-Bit MCU 10MHz | Microchip | TQFP-44
料号： PIC16C67T-10/PT ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $11.5 | $11.50 |
| 10 | $10.2 | $102.00 |
| 100 | $8.95 | $895.00 |
| 500 | $7.6 | $3,800.00 |
| 1,000 | $6.5 | $6,500.00 |
PIC16C67T-10/PT 概述
An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip that integrates a CPU, program memory (ROM/EPROM/Flash/OTP), data RAM, and peripherals such as timers, serial ports, and I/O pins. PIC microcontrollers from Microchip use a Harvard RISC architecture, separating program and data buses for deterministic instruction throughput - each instruction executes in one to four clock cycles. The PIC16C family specifically targets low-cost, high-performance embedded control where in-system reprogrammability is not required.
Key features of the PIC16C67T-10/PT include 14KB OTP program memory (sufficient for state machines, sensor conditioning code, and small protocol stacks), 368 bytes of RAM, three timers, two PWM channels, Brown-out Detect (BOD), Power-On Reset (POR), Watchdog Timer (WDT), and a fully static design that allows clock frequency to be reduced to DC for low-power operation. The OTP windowless package simplifies manufacturing because no UV erasure step is required, lowering per-unit programming cost.
The PIC16C67 family uses a 14-bit instruction word with 35 single-word instructions. Peripherals are accessible through Special Function Registers mapped into the data memory space. The PT suffix denotes the TQFP-44 surface-mount package supplied on tape and reel for automated assembly. The 33 I/O pins support direct interfacing to LEDs, keypads, LCD drivers, and analog comparators via external passives.
Typical applications include industrial process controllers, HVAC system boards, security alarm panels, automotive body electronics (non-safety), appliance control, embedded data acquisition front ends, and legacy PIC16C designs requiring TQFP-44 layout. The wide operating voltage range (typically 2.5V to 6.0V) and broad temperature tolerance make it well suited for uncontrolled environments. Designers migrating to flash-based PIC16F parts can drop in many of the same peripheral libraries with minimal code changes.
When designing with this part, verify that the OTP programming occurs before final PCB assembly because OTP parts cannot be reprogrammed in-circuit. Use Microchip's MPLAB PM3 or equivalent OTP-supported programmer; modern programmers (PICkit 3/4) do not support the PIC16C OTP/EPROM device family. Plan firmware revisions carefully - design for one-time-write cost optimization rather than iterative development.
直接替换替代料： PIC16C67T-10/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16C67T-10/PT （相同外形与封装尺寸） ——差异在于 Core Architecture, Operating Temperature, Program Memory Size, Program Memory Type, Maximum Clock Frequency.
快速对比工具——选择替代料号进行并排对比：
PIC16C67T-10/PT
✅ 直接替换✓ 有现货
$6.5 / 个
查看数据手册 →PIC16C67T-04/PT
✅ 直接替换✓ 有现货
$5.72 / 个
查看数据手册 →PIC16C67-10/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC16C67T-04I/PT
✅ 直接替换✓ 有现货
$7.9 / 个
查看数据手册 →PIC16C67-10I/PT
✅ 直接替换✓ 有现货
$5.1 / 个
查看数据手册 →PIC16F877A-10/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC16C67T-10/PT 最大额定值与电气特性
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Instruction Word Size | 14-bit |
| Program Memory Type | OTP EPROM (One-Time Programmable) |
| Program Memory Size | 14 KB (8K x 14) |
| RAM Size | 368 x 8 bytes |
| Number of I/O Pins | 33 |
| 最大时钟频率 | 10 MHz |
| 电源电压 | 5 V nominal (range per datasheet) |
| 封装 / 外壳 | 44-pin TQFP (PT) |
| 安装类型 | Surface Mount |
| Number of Timers | 3 |
| Number of PWM Channels | 2 |
| Operating Modes | Fully static (DC to max frequency) |
| Special Features | Brown-out Detect (BOD), Power-On Reset (POR), Watchdog Timer (WDT) |
| 工作温度 | Commercial / Industrial / Extended (per datasheet) |
| Instruction Set Size | 35 instructions |
| Series | PIC16C (PIC16C67 device) |
PIC16C67T-10/PT 引脚配置
| 引脚 1 | OSC1/CLKIN — Oscillator input / external clock input |
| 引脚 2 | OSC2/CLKOUT — Oscillator output / clock output |
| 引脚 3 | MCLR/VPP — Master clear (reset) input / programming voltage |
| 引脚 4 | RA0 — PORTA bit 0 (digital I/O) |
| 引脚 5 | RA1 — PORTA bit 1 (digital I/O) |
| 引脚 6 | RA2 — PORTA bit 2 (digital I/O) |
| 引脚 7 | RA3 — PORTA bit 3 (digital I/O) |
| 引脚 8 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| 引脚 9 | RA5 — PORTA bit 5 (digital I/O) |
| 引脚 10 | VSS — Ground reference |
| 引脚 11 | VDD — Positive supply voltage |
| 引脚 12 | RB0/INT — PORTB bit 0 / external interrupt |
| 引脚 13 | RB1 — PORTB bit 1 (digital I/O) |
| 引脚 14 | RB2 — PORTB bit 2 (digital I/O) |
| 引脚 15 | RB3 — PORTB bit 3 (digital I/O) |
| 引脚 16 | RB4 — PORTB bit 4 (digital I/O) |
| 引脚 17 | RB5 — PORTB bit 5 (digital I/O) |
| 引脚 18 | RB6 — PORTB bit 6 (digital I/O) |
| 引脚 19 | RB7 — PORTB bit 7 (digital I/O) |
| 引脚 20 | VSS — Ground reference |
| 引脚 21 | VDD — Positive supply voltage |
| 引脚 22 | RC0 — PORTC bit 0 (digital I/O) |
| 引脚 23 | RC1 — PORTC bit 1 (digital I/O) |
| 引脚 24 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| 引脚 25 | RC3 — PORTC bit 3 (digital I/O) |
| 引脚 26 | RC4 — PORTC bit 4 (digital I/O) |
| 引脚 27 | RC5 — PORTC bit 5 (digital I/O) |
| 引脚 28 | RC6 — PORTC bit 6 (digital I/O) |
| 引脚 29 | RC7 — PORTC bit 7 (digital I/O) |
| 引脚 30 | VSS — Ground reference |
| 引脚 31 | VDD — Positive supply voltage |
| 引脚 32 | RD0 — PORTD bit 0 (digital I/O) |
| 引脚 33 | RD1 — PORTD bit 1 (digital I/O) |
| 引脚 34 | RD2 — PORTD bit 2 (digital I/O) |
| 引脚 35 | RD3 — PORTD bit 3 (digital I/O) |
| 引脚 36 | RD4 — PORTD bit 4 (digital I/O) |
| 引脚 37 | RD5 — PORTD bit 5 (digital I/O) |
| 引脚 38 | RD6 — PORTD bit 6 (digital I/O) |
| 引脚 39 | RD7 — PORTD bit 7 (digital I/O) |
| 引脚 40 | VSS — Ground reference |
| 引脚 41 | VDD — Positive supply voltage |
| 引脚 42 | RE0/RD — PORTE bit 0 / parallel slave port read control |
| 引脚 43 | RE1/WR — PORTE bit 1 / parallel slave port write control |
| 引脚 44 | RE2/CS — PORTE bit 2 / parallel slave port chip select |
典型应用
PIC16C67T-10/PT 适用于 6 应用s: Industrial Process Controller, HVAC System Control Board, Security Alarm Panel, Appliance Control Module, Embedded Data Acquisition Front End, Legacy Automotive Body Electronics.
Industrial Process Controller
The PIC16C67T-10/PT fits industrial process controllers because its 10 MHz clock and 14 KB OTP program memory support deterministic PID loops, sensor linearization routines, and Modbus RTU slave handlers at typical 100 Hz control rates. Per Microchip's PIC16C6x datasheet typical applications, its 33 I/O pins directly drive relay banks, 4-20 mA loops via external op-amps, and 4x4 keypad/LED matrices, with the 3 timers providing input capture and PWM for valve and motor control. Compared to flash-based alternatives, the OTP part offers lower per-unit cost in volume OEM controllers and stable long-term firmware, with BOD and WDT ensuring reliable brown-out and lock-up recovery. Use a TQFP-44 layout that accommodates the ICSP-disabled package and OTP-programmed pre-assembly workflow.
推荐
HVAC System Control Board
The PIC16C67T-10/PT is well-suited to HVAC control boards where its 33 I/O pins interface with thermostat inputs, triac-driven fan/valve actuators, and tri-color LED status displays. Per the Microchip PIC16C6x datasheet, the 2 PWM channels directly modulate blower motor speed and damper position via optoisolated triac drivers, while 3 timers provide real-time scheduling and input capture for tachometer feedback. The OTP memory prevents field firmware tampering - critical for OEM warranty control - and the wide temperature range supports installation in attics and rooftop units. The BOD/POR/WDT peripherals handle power-quality issues common in HVAC installations with inductive loads and brown-out events.
推荐
Security Alarm Panel
The PIC16C67T-10/PT is appropriate for security alarm panels where its 14 KB OTP memory stores encrypted zone definitions, dialer protocols (Contact ID, SIA), and keypad handling routines while preventing reverse-engineering attempts via firmware extraction. Per Microchip PIC16C6x datasheet typical applications, the 33 I/O pins connect to PIR motion sensors, reed switches, glass-break detectors, keypad matrices, siren drivers, and dialer outputs, with the 3 timers providing pulse-width measurement and watch-dog supervision. The WDT ensures recovery from electrical noise and ESD events common in field-installed security equipment. OTP storage also eliminates the firmware-update attack vector that affects flash-based panels.
推荐
Appliance Control Module
The PIC16C67T-10/PT powers appliance control modules (washing machines, dishwashers, refrigerators) where OTP memory locks the firmware against post-sale modification - essential for regulatory and warranty compliance. Per Microchip PIC16C6x datasheet, its 14 KB program memory fits motor control state machines, user-interface handling, and fault diagnostic logging for white goods. The 33 I/O pins drive 7-segment displays, keypad inputs, relay coils, and triac outputs for motor speed control via zero-cross detection. The wide operating voltage range and BOD/POR/WDT peripherals handle the noisy, brown-out-prone mains-derived power rails typical in appliance environments.
推荐
Embedded Data Acquisition Front End
The PIC16C67T-10/PT serves as a low-cost data-acquisition front end for sensor arrays and instrumentation clusters. Per the Microchip PIC16C6x datasheet, its 10 MHz clock performs sequential ADC reads, scaling, linearization, and packet assembly for downstream transmission at rates up to 1 kHz per channel. The 33 I/O pins multiplex multiple sensor channels via external analog switches, with the 3 timers triggering sample intervals and host-request service timing. OTP memory stabilizes calibration coefficients against accidental field writes, and the TQFP-44 package enables compact multi-channel PCB layouts. Typical use includes environmental monitors, factory-floor telemetry aggregators, and legacy PLC expansion modules.
推荐
Legacy Automotive Body Electronics
The PIC16C67T-10/PT fits non-safety automotive body modules - seat controllers, mirror adjusters, lighting timers, and accessory multiplexers - where its OTP memory locks against unauthorized tuning and the 33 I/O pins drive relays and FET bridges directly. Per Microchip PIC16C6x datasheet, the 14 KB program space supports CAN/LIN message handlers, PWM-driven lighting fade routines, and switch de-bounce state machines. The wide temperature range covers under-dash installations, and BOD/POR/WDT peripherals survive automotive cranking and load-dump transients. Note: for new designs Microchip recommends migrating to PIC16F877A or dsPIC33 families for AEC-Q100 qualification and CAN-FD support.
推荐
推荐产品汇总
工程参考数据： PIC16C67T-10/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16C67T-04/PT | PIC16C67-10/PT | PIC16C67T-04I/PT | PIC16C67-10I/PT | PIC16F877A-10/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (PT) | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same |
| Program Memory Type | OTP EPROM (14 KB) | OTP EPROM (14 KB) | OTP EPROM (14 KB) | OTP EPROM (14 KB) | OTP EPROM (14 KB) | Flash (14 KB) |
| Maximum Clock Frequency | 10 MHz | 4 MHz | 10 MHz | 4 MHz | 10 MHz | 10 MHz (with Flash) |
| RAM Size | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| In-Circuit Programming | No (OTP only) | No (OTP only) | No (OTP only) | No (OTP only) | No (OTP only) | Yes (Flash + ICD) |
| Temperature Grade | Commercial | Commercial | Commercial | Industrial | Industrial | Industrial (typical) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Active (recommended migration) |
关键差异点
- Flash memory and in-circuit programming （对比 PIC16C67T-10/PT (this OTP part))
- Lower-speed grade with same TQFP-44 footprint （对比 PIC16C67T-04/PT (4 MHz variant))
- Industrial temperature grade option （对比 PIC16C67T-10/PT (commercial temperature))
- Same PIC16C67 die in tube packaging （对比 PIC16C67T-10/PT (T&R packaging))
设计说明
PIC16C67T-10/PT uses OTP EPROM and CANNOT be programmed in-circuit or with PICkit/ICD tools. Per Microchip PIC16C6x datasheet and MPLAB documentation, only the MPLAB PM3 Universal Device Programmer (or legacy PRO MATE II) supports OTP programming for this family. Plan OTP programming before PCB assembly because a programming failure requires board scrap. Modern programmers including PICkit 3, PICkit 4, MPLAB ICD 3, and ICD 4 explicitly do NOT support the PIC16C OTP/EPROM devices.
The TQFP-44 (PT) package requires careful PCB layout: 0.8 mm pitch pads need NSMD (non-solder mask defined) land patterns with via-in-pad recommended for ground/VDD pins, and 4-layer stack-up with continuous ground pour under the die for thermal spreading. Per Microchip TQFP-44 mechanical drawings, a 0.5 sq-in copper pour at the ground plane reduces junction temperature by approximately 15C at maximum operating current. Maintain 0.25 mm trace/space minimum at the TQFP fan-out to avoid solder-bridging defects during reflow.
The PIC16C67T-10/PT draws approximately 5-15 mA active current depending on clock and I/O loading, and less than 1 uA in sleep mode. Per the Microchip PIC16C6x datasheet electrical characteristics, the part has multiple VDD/VSS pin pairs (10/11, 20/21, 30/31, 40/41) which must ALL be connected - leaving any VDD pin floating causes undefined behavior and oscillator instability. Use 100 nF ceramic decoupling on each VDD/VSS pair, placed within 3 mm of the IC pins, plus a single 10 uF bulk capacitor near the supply pin cluster.
Oscillator placement is critical for PIC16C67T-10/PT reliability. Per the Microchip PIC16C6x datasheet oscillator section, keep the crystal/ceramic resonator within 5 mm of pins 1-2 (OSC1/OSC2), surround the oscillator components with a ground guard ring connected to VSS, and route the OSC traces with 0.25 mm width and no vias to minimize parasitic capacitance. Add 1 MOhm parallel bias resistor across the crystal for parallel-resonance mode operation. Failure to follow these guidelines causes start-up failures and frequency drift at temperature extremes.
Estimated: at maximum clock frequency (10 MHz) with all 33 I/O pins driving 20 mA loads (which exceeds the 25 mA per-pin absolute maximum), the die dissipation can reach approximately 0.5 W. The TQFP-44 thermal resistance theta_JA is approximately 50 C/W on a 4-layer JEDEC test board, giving a junction temperature rise of 25C above ambient - within the 150C absolute maximum. However, in sealed enclosures with limited airflow, derate clock frequency or reduce I/O loading to maintain junction temperature below 125C for long-term reliability. Use thermal vias under the exposed die pad if available on the package variant.
合规信息
Compliance information not found in verified web data - marked [DATA_NEEDED]. The PIC16C67T-10/PT predates widespread RoHS adoption and the PT (TQFP) package is typically offered in both lead-bearing and lead-free variants - check the specific manufacturer datasheet ordering information for the part suffix indicating compliance status. AEC-Q100 is not applicable to this industrial-grade MCU.