PIC16C710-20/P - 8-bit OTP MCU, 20MHz, 13 I/O | Microchip | DIP-18
MPN: PIC16C710-20/P ✓ Hoạt độngPIC16C710-20/P Tóm tắt
Background: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and programmable peripherals into one package. PIC16 mid-range MCUs are 14-bit instruction-word Harvard-architecture devices widely used for cost-sensitive embedded control. PIC16C-series parts use One-Time-Programmable EPROM rather than flash, meaning the program memory can be written once and is then read-only for the rest of its operational life. Within the PIC taxonomy, the PIC16C710 sits under mid-range 8-bit MCUs -> PIC microcontrollers -> microcontrollers -> microcontrollers & processors -> semiconductors.
Key features include 4 channels of 8-bit Analog-to-Digital conversion on-chip, 13 digital I/O pins with programmable direction registers, a 20 MHz external oscillator input, an 8-bit timer/counter (TMR0) with an 8-bit prescaler, a Watchdog Timer with its own on-chip RC oscillator, and a Power-on Reset / Brown-out Reset combined circuit. The core is fully static CMOS, draws low operating current, and supports DC to 20 MHz clock input. Power supply range is 3.0 V to 6.0 V.
Typical applications include entry-level A/D conversion in automotive sensor interfaces, industrial appliance controls, white goods and HVAC controls, and consumer-electronics user-interface boards where cost per node matters and the 4-channel 8-bit ADC is sufficient for the measurement task. Designers should reserve the four analog channels (RA0-RA3) for signals, use the remaining PORTA/B pins for digital I/O, and budget the OTP window-planning tool from Microchip before committing code. Power sequencing should respect the on-chip POR/BOR thresholds to avoid spurious reset events during brown-outs.
Bộ thay thế dễ dàng lắp đặt cho PIC16C710-20/P — 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 PIC16C710-20/P (cùng hình factor và footprint) — khác nhau ở Package, Timers, Program Memory Type, Program Memory Size, Mounting Type.
PIC16C710-04/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F716-I/P
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Xem tài liệu →PIC16C710-20/P Tỷ lệ tối đa & tính chất điện
| Core | PIC16 mid-range 8-bit RISC |
| Instruction Set Architecture | 14-bit Harvard, 35 instructions |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 896 B (512 x 14 words) |
| Data RAM | 36 B |
| Maximum CPU Frequency | 20 MHz |
| Operating Voltage Range | 3.0 V to 6.0 V |
| ADC Channels | 4 (8-bit resolution) |
| I/O Pins | 13 |
| Timers | 1 x 8-bit (TMR0 with 8-bit prescaler) |
| Watchdog Timer | Yes (with on-chip RC oscillator) |
| Reset Circuit | POR + Brown-out Reset |
| Hộp | 18-DIP (0.300 inch, 7.62 mm) |
| Kiểu lắp đặt | Through-Hole |
Cấu hình chân PIC16C710-20/P
| Chân 1 | RA2/AN2 — Bidirectional I/O / analog input channel 2 |
| Chân 2 | RA3/AN3/VREF — Bidirectional I/O / analog input channel 3 / ADC voltage reference |
| Chân 3 | RA4/T0CKI — Bidirectional I/O / TMR0 clock input (open-drain output) |
| Chân 4 | MCLR/VPP — Master Clear reset input (active low) / programming voltage input |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0/INT — Bidirectional I/O / external interrupt input |
| Chân 7 | RB1 — Bidirectional I/O |
| Chân 8 | RB2 — Bidirectional I/O |
| Chân 9 | RB3 — Bidirectional I/O |
| Chân 10 | RB4 — Bidirectional I/O / interrupt-on-change |
| Chân 11 | RB5 — Bidirectional I/O / interrupt-on-change |
| Chân 12 | RB6 — Bidirectional I/O / interrupt-on-change |
| Chân 13 | RA0/AN0 — Bidirectional I/O / analog input channel 0 |
| Chân 14 | RA1/AN1 — Bidirectional I/O / analog input channel 1 |
| Chân 15 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| Chân 16 | OSC2/CLKOUT — Crystal oscillator output / 1/4 of CLKIN output |
| Chân 17 | VDD — Positive supply voltage |
| Chân 18 | RB7 — Bidirectional I/O / interrupt-on-change |
Ứng dụng tiêu biểu
PIC16C710-20/P phù hợp cho 6 Áp dụngs: Automotive Sensor Interface, Industrial Appliance Control, White Goods / HVAC Front Panel, Consumer Electronics User Interface, Battery-Powered Sensor Node, Educational / Hobbyist Embedded Trainer.
Automotive Sensor Interface
The PIC16C710-20/P fits automotive sensor-interface modules because its 4-channel 8-bit ADC directly digitizes thermistor, potentiometer, and switch-sensor signals without external converter ICs. With 13 digital I/O pins, the same chip drives relay coils, status LEDs, and LIN/CAN-front-end enable lines in entry-level body-electronics modules. The 3.0 V to 6.0 V supply range tolerates 12 V automotive bus rails after pre-regulation, and the on-chip Brown-out Reset prevents spurious reset during cranking transients. Engineers typically sample RA0-RA3 at 4 kHz, debounce RB0-RB5 in firmware, and update outputs every 10 ms. Compared with a discrete ADC + 8-bit MCU approach, the PIC16C710-20/P cuts BOM count by at least two parts and PCB area by roughly 30 percent.
Được đề xuất
Industrial Appliance Control
In industrial appliance control boards - washing machines, dishwashers, small HVAC controllers - the PIC16C710-20/P's 4-channel ADC reads water temperature, level sensor, door switch, and rotary knob simultaneously while the 13 I/O pins drive pump relays, valve solenoids, and buzzer indicators. The 20 MHz CPU headroom handles washing-machine state-machine firmware comfortably, and the 896-byte OTP budget is enough for a fixed control algorithm. The Power-on Reset and Watchdog Timer satisfy IEC 60730 safety-class B requirements for unattended appliance operation. Designers place the MCU near the user-interface connector to minimize analog trace length, use the on-chip prescaler for keypad scan timing, and reserve one timer interrupt for the main control loop at 100 Hz.
Được đề xuất
White Goods / HVAC Front Panel
The PIC16C710-20/P is a strong fit for HVAC thermostat and white-goods front panels because the 4-channel 8-bit ADC digitizes set-point potentiometer, room temperature sensor, mode switch, and fan-speed feedback with no extra ICs. With 13 I/O, the same MCU scans a 4x4 keypad matrix, drives a 7-segment or character LCD enable line, and toggles a backlight MOSFET. The 3.0 V to 6.0 V range accepts a regulated 5 V rail from a small switcher. OTP memory locks the firmware against field-tampering, an advantage in commercial HVAC where certification requires the algorithm to be unchanged. Typical firmware fits in 700 bytes and executes at 4 MHz internally divided from the 20 MHz oscillator.
Được đề xuất
Consumer Electronics User Interface
For consumer-electronics user-interface boards such as coffee makers, electric kettles, slow cookers, and entry-level audio amplifiers, the PIC16C710-20/P provides enough compute for button debouncing, rotary encoder reading, LED PWM dimming, and basic fault detection. The 4-channel ADC tracks water level, weight sensor, or potentiometer volume control, while the 13 I/O lines drive relays, status LEDs, and a small character display. OTP locks firmware to prevent consumer firmware modification, supporting warranty and safety claims. Engineers often run the MCU at 4 MHz internal RC to reduce EMI, switching to 20 MHz only during ADC sampling and PWM update.
Được đề xuất
Battery-Powered Sensor Node
The PIC16C710-20/P suits low-duty-cycle battery-powered sensor nodes because the fully-static CMOS core can idle at <1 microamp with the oscillator stopped, and the 3.0 V minimum supply aligns with two alkaline or NiMH cells. The 4-channel ADC wakes periodically to read sensors, the Watchdog Timer with on-chip RC oscillator wakes the CPU every 1-2 seconds, and the 13 I/O pins drive a low-power RF or IR transmit front-end. The 896-byte OTP stores a tiny periodic-measurement-and-transmit state machine. Compared with ARM Cortex-M0 alternatives, the PIC16C710-20/P reduces sleep current by a factor of 5 to 10 at similar task loads.
Được đề xuất
Educational / Hobbyist Embedded Trainer
The PIC16C710-20/P is an effective educational microcontroller for teaching 8-bit embedded programming because the PIC16 mid-range architecture has only 35 instructions, a flat 2K x 14 program space addressing model, and on-chip peripherals (ADC, TMR0, WDT) that map directly to textbook examples. The 18-pin PDIP through-hole package is breadboard-friendly for hobbyists, and OTP enforces the discipline of verifying code in a flash equivalent before committing. The 20 MHz CPU headroom runs all standard mid-range labs (PWM, ADC, interrupts, timer-based scheduling) without timing pressure. University courses and self-learners benefit from extensive Microchip application-note library coverage of this architecture.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C710-20/P — 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 | PIC16C710-04/P | PIC16C710-20/SS | PIC16F716-I/P |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-DIP | 18-DIP - same | 20-SSOP - different | 18-DIP - same |
| Core | 8-bit PIC16 mid-range | 8-bit PIC16 mid-range | 8-bit PIC16 mid-range | 8-bit PIC16 mid-range |
| Max CPU Frequency | 20 MHz | 4 MHz | 20 MHz | 20 MHz |
| Program Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | Flash (reprogrammable) |
| I/O Pins | 13 | 13 | 13 | 13 |
| Operating Voltage | 3.0 V to 6.0 V | 3.0 V to 6.0 V | 3.0 V to 6.0 V | 2.0 V to 5.5 V |
Bảo phân biệt quan trọng
- 20 MHz CPU speed vs 4 MHz sibling (vsPIC16C710-04/P)
- OTP EPROM firmware lock vs Flash reprogrammability (vsPIC16F716-I/P)
- Through-hole 18-DIP package for breadboard and legacy designs (vsPIC16C710-20/SS (20-SSOP))
Ghi chú thiết kế
PIC16C710-20/P operates from 3.0 V to 6.0 V; place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin and a 10 uF bulk capacitor near the VDD-VSS pair. According to Microchip datasheet recommendations, add a series ferrite bead or 10 ohm resistor on VDD if the supply is shared with inductive loads (relays, solenoids). Brown-out Reset should be enabled in the configuration word to prevent code corruption during supply droops in automotive cranking scenarios.
Keep the analog traces (RA0-RA3) short and away from digital switching nodes to preserve ADC accuracy. According to PIC16C71X layout guidelines, route the analog reference (RA3/VREF) with a star connection back to the reference bypass capacitor. Avoid running digital signals directly under the crystal traces (OSC1, OSC2) to prevent clock jitter. The 18-DIP through-hole package allows easy prototype replacement but has higher lead inductance than SMD, so add 100 nF across VDD-VSS at the package pins.
OTP EPROM can be written exactly once. According to Microchip programming specifications, the VPP voltage during programming is typically 13 V applied to MCLR/VPP - exceeding this voltage damages the device permanently. Engineers prototyping with PIC16C710-20/P should first develop and verify firmware on a PIC16F716-I/P drop-in (flash memory), then port the final code to the OTP part for production. Using the OTP part for development is a common and costly mistake because every code-change requires a new chip.
Place the crystal or resonator within 10 mm of the OSC1 and OSC2 pins and ground its case to VSS with a short trace to minimize EMI. According to Microchip oscillator design notes, add a 1 M ohm parallel resistor across the crystal to bias the internal oscillator inverter when using a low-drive crystal. If using an external clock source, drive OSC1 with a CMOS-level signal and leave OSC2 floating. The CLKOUT feature on OSC2 can drive one additional CMOS load without buffering.
Thông tin tuân thủ
RoHS, REACH, lead-free, and halogen-free status depend on date code and manufacturing lot. Microchip phased lead-free assembly into PIC16C family over time. Designers building RoHS-only BOMs should request RoHS-certified date codes from franchised distributor. AEC-Q100 not applicable - this is a commercial-grade OTP MCU.
