PIC16C717T-I/SO - 8-Bit 20MHz OTP MCU 18-SOIC | Microchip
MPN： PIC16C717T-I/SO ✓ 啟用中PIC16C717T-I/SO 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, I/O ports, and timing/interrupt logic. The PIC16C717 belongs to the PIC16C family of 14-bit instruction-word OTP MCUs, hierarchically a subfamily of Microchip's broader PIC10/12/16/18 8-bit microcontroller lineup. The 14-bit opcode width gives the PIC16C717 richer instruction set support than the baseline PIC16C5X (12-bit opcodes) while remaining upward compatible with PIC16C5X and PIC12CXXX devices.
Key features include 35 single-word instructions, a hardware USART/SCI port, I2C/SPI capable MSSP module, two 8-bit timers (Timer0, Timer2) and one 16-bit timer (Timer1), a 10-bit 6-channel ADC, and an internal watchdog timer. The 'T' suffix indicates Tape and Reel packaging while the 'I' suffix denotes the industrial temperature grade of -40C to +85C.
The PIC16C717 implements a RISC-style Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and operand access. Its 200 ns instruction cycle at 20 MHz provides deterministic interrupt latency for real-time control loops. CMOS technology yields low power consumption suitable for both battery-powered and line-powered industrial designs.
Typical applications include industrial control systems, sensor signal conditioning with on-chip ADC, low-cost embedded control, appliance control boards, and consumer electronics requiring modest GPIO count with integrated analog. The 6-channel 10-bit ADC makes the PIC16C717 well-suited to multi-sensor monitoring designs.
When designing with this OTP part, plan code carefully - the program memory is not reprogrammable in-circuit. Choose the flash-based PIC16F717 for development and field updates, then migrate to the PIC16C717T-I/SO for cost-sensitive production volume once firmware is finalized. Decoupling VDD with 100 nF ceramic placed within 5 mm of the IC is recommended.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 PIC16C717T-I/SO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16C717T-I/SO （相同外形與佔位） — 差異在於 Package, ADC, Timers, Program Memory Size, Core.
PIC16C717T-I/SS
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16C717-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16C717T-E/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16C717/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16C716T-04/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16C717T-I/SO 最大額定值與電氣特性
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC16C (14-bit RISC Harvard) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 256 bytes |
| 最大時脈頻率 | 20 MHz |
| Instruction Cycle Time | 200 ns |
| Instruction Set Size | 35 single-word instructions |
| ADC | 10-bit, 6 channels |
| Timers | 2 x 8-bit + 1 x 16-bit (Timer0, Timer1, Timer2) |
| I/O Pins | 16 |
| Communication Peripherals | USART/SCI, MSSP (I2C/SPI) |
| 供應電壓 | 2.5 V to 5.5 V (typical 5 V) |
| 工作溫度 | -40C to +85C (Industrial) |
| 封裝 | 18-SOIC (0.295 inch, 7.50 mm width) |
| 安裝類型 | Surface Mount |
| Watchdog Timer | Yes (internal) |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC16C717T-I/SO 腳位配置
| 腳位 1 | RA2/AN2/CVREF — Port A bit 2 / ADC input 2 / comparator voltage reference output |
| 腳位 2 | RA3/AN3/VREF+ — Port A bit 3 / ADC input 3 / ADC voltage reference positive |
| 腳位 3 | RA4/AN4/T0CKI — Port A bit 4 / ADC input 4 / Timer0 clock input |
| 腳位 4 | RA5/AN5/SS/HLVDIN — Port A bit 5 / ADC input 5 / SPI slave select / high-low voltage detect input |
| 腳位 5 | VSS — Ground reference |
| 腳位 6 | OSC1/CLKI — Oscillator crystal input / external clock input |
| 腳位 7 | OSC2/CLKO — Oscillator crystal output / clock output |
| 腳位 8 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / Timer1 clock input |
| 腳位 9 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator input / Capture/Compare/PWM 2 |
| 腳位 10 | RC2/CCP1 — Port C bit 2 / Capture/Compare/PWM 1 |
| 腳位 11 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| 腳位 12 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| 腳位 13 | RC5/SDO — Port C bit 5 / SPI data out |
| 腳位 14 | RC6/TX/CK — Port C bit 6 / USART asynchronous transmit / USART synchronous clock |
| 腳位 15 | RC7/RX/DT — Port C bit 7 / USART asynchronous receive / USART synchronous data |
| 腳位 16 | VSS — Ground reference (second VSS pin) |
| 腳位 17 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
| 腳位 18 | MCLR/VPP/RA1 — Master clear reset (active low) / programming voltage / Port A bit 1 |
典型應用
PIC16C717T-I/SO 適用於 7 應用s: Industrial Sensor Monitoring System, Appliance Control Board, Low-Cost Remote Sensor Node, Automotive Interior Accessory Controller, Smart Meter Edge Controller, Consumer Electronics Control Module, HVAC Damper and Valve Actuator.
Industrial Sensor Monitoring System
The PIC16C717T-I/SO fits industrial multi-sensor monitoring designs via its integrated 6-channel 10-bit ADC and 16 GPIO pins, which eliminate the need for an external ADC in many designs. Sampling up to six analog sensors (temperature, pressure, flow) sequentially, the PIC16C717 can poll at ADC clock rates derived from the 20 MHz system clock. The 16 GPIO handle discrete inputs/outputs for relay control, status LEDs, and keypads. Industrial-grade -40C to +85C operation ensures reliable performance in factory-floor enclosures where ambient temperature swings are common.
推薦
Appliance Control Board
The PIC16C717T-I/SO is well-suited for appliance control boards (washing machines, dishwashers, microwave ovens) thanks to its 3.5 KB OTP memory holding complete state-machine firmware, 16 GPIO driving relays and indicators, and 6 ADC channels reading water level, temperature, and motor current. At 20 MHz, the 200 ns instruction cycle ensures deterministic real-time response for safety interlocks. Industrial temperature rating supports the warm ambient conditions inside appliance cabinets. OTP memory keeps per-unit cost low in high-volume appliance production.
推薦
Low-Cost Remote Sensor Node
For battery-powered remote sensor nodes, the PIC16C717T-I/SO's CMOS implementation draws low active current and supports sleep/idle modes that extend battery life. The 10-bit ADC digitizes sensor data, while the integrated USART interfaces with an external radio module (433 MHz or sub-GHz transceiver) for wireless telemetry. Industrial temperature range enables outdoor deployment. OTP memory keeps the BOM cost minimal compared to flash MCUs, and the 18-SOIC footprint is straightforward to assemble on small sensor-node PCBs.
推薦
Automotive Interior Accessory Controller
Inside the vehicle cabin (non-safety accessory controllers like seat heaters, ambient lighting, mirror adjusters), the PIC16C717T-I/SO handles multi-channel PWM-driven loads via its timers, reads switch inputs through GPIO, and interfaces with the body control module via LIN or UART using its integrated USART. Six ADC channels monitor current feedback for overcurrent detection. The 20 MHz clock provides responsive PWM resolution at typical 1 kHz switching frequencies. For under-hood or safety-critical automotive functions, upgrade to AEC-Q100-qualified parts instead.
推薦
Smart Meter Edge Controller
In smart electricity/water/gas meters, the PIC16C717T-I/SO reads metrology signals via its 10-bit ADC and communicates to the metering concentrator over UART or via the MSSP module interfacing an external modem or PLC chipset. Industrial temperature tolerance handles outdoor meter cabinet environments. The 3.5 KB OTP memory stores the metrology algorithm and tamper-detection logic. Low-cost OTP silicon keeps the BOM within tight utility-meter targets, and the 18-SOIC package is well-suited to conformal-coated meter PCBs.
推薦
Consumer Electronics Control Module
For consumer audio-visual accessories and toys, the PIC16C717T-I/SO delivers responsive button decoding, IR receiver handling via the 16-bit Timer1 capture input, and LED matrix driving via GPIO. The MSSP module interfaces SPI-driven LED drivers or small OLED displays. Industrial temperature rating covers typical indoor consumer environments with margin. OTP memory at low unit cost enables high-volume consumer product launches. The 20 MHz clock delivers glitch-free software-generated IR protocols at 38 kHz carrier frequency for remote-control compatibility.
推薦
HVAC Damper and Valve Actuator
Building HVAC damper and valve actuators benefit from the PIC16C717T-I/SO's industrial temperature range (-40C to +85C) suitable for rooftop and basement equipment rooms. The MCU drives brushless DC or stepper actuators via its timers/PWM, reads position feedback via the 10-bit ADC, and communicates with the building automation bus via USART or MSSP. The 256 bytes RAM is sufficient for the control loop and status buffering. OTP memory prevents firmware tampering in fielded installations.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16C717T-I/SO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16C717T-E/SO | PIC16C717/SO | PIC16C717-I/SO | PIC16C716T-04/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC (0.295 inch) | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 2 KB OTP (-43%) |
| RAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 128 bytes |
| Max Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 4 MHz (low-speed grade) |
| Temperature Grade | Industrial -40C to +85C | Extended -40C to +125C | Commercial 0C to +70C | Industrial -40C to +85C | Industrial -40C to +85C |
| Shipping Carrier | Tape & Reel | Tape & Reel | Tube | Tube | Tape & Reel |
| ADC Channels | 6 x 10-bit | 6 x 10-bit | 6 x 10-bit | 6 x 10-bit | 4 x 8-bit |
主要差異化特點
- Highest program memory in 18-SOIC PIC16C7xx family (對比PIC16C716T-04/SO)
- Industrial temperature grade with Tape and Reel shipping (對比PIC16C717/SO)
- Extended 6-channel 10-bit ADC (對比PIC16C716T-04/SO)
- Industrial-grade thermal rating for harsh environments (對比PIC16C717/SO)
設計說明
Place a 100 nF ceramic decoupling capacitor between VDD (pin 17) and VSS (pins 5 and 16) within 5 mm of the IC, plus a bulk 10 uF electrolytic or ceramic on the supply rail. The PIC16C717 internal VDS features integrated POR (Power-on Reset) and BOR (Brown-out Reset) with configurable trip voltage; enable BOR for reliable startup in industrial environments. Avoid VDD rise times below the BOR minimum to prevent undefined register states at power-up.
Route the MCLR line (pin 18) carefully - it functions both as a master-clear reset and as the programming voltage input. Place the MCLR pull-up resistor (typically 10 kohm) close to the IC and add a clamping diode to VDD if MCLR is exposed to ESD or transient events. For in-system programming (using an ICD header), break the MCLR trace with a jumper or diode-resistor network to allow the programmer to drive the pin without disturbing the rest of the circuit.
The PIC16C717 OTP memory is one-time programmable - any code bug locked into OTP cannot be repaired in-circuit. Mitigate this risk by developing and debugging on the flash-based PIC16F717 (same pinout and peripherals), then committing final code to PIC16C717T-I/SO for production. Configuration bits must be programmed correctly; in particular, set the oscillator mode (HS for high-speed crystal, XT for low-speed, RC for cost-sensitive oscillator), disable Watchdog Timer (WDT) unless explicitly needed, and enable BOR and PWRT (Power-up Timer) for reliable industrial startup.
For the ADC (10-bit, 6 channels on pins RA0-RA5), use separate analog and digital ground planes if possible, joining at a single point near the IC. Drive the ADC inputs through low-impedance sources (<=10 kohm) to settle the sample-and-hold capacitor within the acquisition window. Add a small RC filter (100 ohm + 100 nF) on noisy ADC inputs near the IC pin to filter out clock harmonics from the digital domain.
合規資訊
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this part is not designed for safety-critical automotive applications.