PIC16F570T-I/MV - 8-bit MCU 3KB Flash 28-Pin UQFN | Microchip
MPN: PIC16F570T-I/MV ✓ Hoạt độngPIC16F570T-I/MV Tóm tắt
An 8-bit microcontroller (MCU) is a compact programmable processor that combines a CPU, on-chip memory, and a fixed set of peripherals (ADC, timers, communications, analog) into a single device. Within the broader semiconductor taxonomy, MCUs sit under microcontrollers, then embedded processors, then logic/semiconductor devices. Microchip's PIC16 family targets cost-sensitive applications that need reliable 8-bit performance with deterministic interrupt response, and the PIC16F570 distinguishes itself by integrating true analog building blocks (op-amps and comparators) directly on-die.
Key features include 3 KB self-programmable flash (up to 100,000 erase/write cycles), 128 bytes of EEPROM, and a 25 I/O pin budget with high-current sink/source capability. The dual on-chip op-amps can be configured as buffers, amplifiers, or filters, while the two comparators share an internal 0.6 V/1.2 V/2.5 V reference. Eight MHz internal oscillator eliminates external crystals in cost-sensitive designs, and in-circuit serial programming (ICSP) allows in-field firmware updates.
Typical applications include industrial sensor conditioning loops, battery chargers, motor control front-ends, smart thermostats, low-end consumer appliances, and LED lighting controllers. The combination of integrated op-amps and comparators makes the PIC16F570T-I/MV particularly well-suited to closed-loop analog systems where PCB area and BOM cost matter more than raw CPU throughput.
When designing with this device, keep analog and digital grounds separated and meet at a single point near the IC to avoid noise coupling into the op-amp/comparator stages. Use the internal 8 MHz oscillator only when timing tolerance is non-critical, since factory trim accuracy is approximately +/- 1 percent at room temperature.
Bộ thay thế dễ dàng lắp đặt cho PIC16F570T-I/MV — 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 PIC16F570T-I/MV (cùng hình factor và footprint) — khác nhau ở ADC, Data EEPROM, Package, Timers, Internal Oscillator.
PIC16F570-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F570-E/MV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F570T-I/SS
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F570T-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F570T-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F570T-I/MV Tỷ lệ tối đa & tính chất điện
| Architecture | 8-bit PIC16 Harvard RISC |
| Program Memory (Flash) | 3 KB |
| RAM | 64 bytes |
| Data EEPROM | 128 bytes |
| Data Memory (RAM) | 64 bytes |
| Maximum CPU Speed | 20 MHz (8 MIPS at 20 MHz) |
| Operating Voltage Range | 2.0 V to 5.5 V |
| Internal Oscillator | 8 MHz (factory calibrated) |
| Number of I/O Pins | 25 (high-current sink/source) |
| ADC | 8-channel, 8-bit |
| Integrated Operational Amplifiers | 2 (configurable) |
| Comparators | 2 with selectable internal reference |
| Timers | 2x 8-bit / 1x 16-bit (Timer0/1/2) |
| Watchdog Timer | Yes (software enabled) |
| Program Memory Endurance | 100,000 erase/write cycles (typical) |
| In-Circuit Programming | ICSP (In-Circuit Serial Programming) |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp | 28-pin UQFN (MV), 4x4 mm with exposed pad |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F570T-I/MV
| Chân 1 | RA0/AN0 — Bidirectional I/O / Analog channel 0 / CVREF |
| Chân 2 | RA1/AN1 — Bidirectional I/O / Analog channel 1 |
| Chân 3 | RA2/AN2 — Bidirectional I/O / Analog channel 2 |
| Chân 4 | RA3/AN3 — Bidirectional I/O / Analog channel 3 / VREF+ |
| Chân 5 | RA4/AN4 — Bidirectional I/O / Analog channel 4 |
| Chân 6 | RA5/AN5 — Bidirectional I/O / Analog channel 5 |
| Chân 7 | RA6/OSC2 — Bidirectional I/O / Oscillator output |
| Chân 8 | RA7/OSC1 — Bidirectional I/O / Oscillator input |
| Chân 9 | VSS — Ground reference |
| Chân 10 | VDD — Positive supply (2.0 V to 5.5 V) |
| Chân 11 | RB0/INT — Bidirectional I/O / External interrupt |
| Chân 12 | RB1 — Bidirectional I/O |
| Chân 13 | RB2 — Bidirectional I/O |
| Chân 14 | RB3 — Bidirectional I/O / ICSP programming clock |
| Chân 15 | RB4 — Bidirectional I/O / ICSP programming data |
| Chân 16 | RB5 — Bidirectional I/O |
| Chân 17 | RB6 — Bidirectional I/O |
| Chân 18 | RB7 — Bidirectional I/O |
| Chân 19 | RC0/AN6 — Bidirectional I/O / Analog channel 6 |
| Chân 20 | RC1/AN7 — Bidirectional I/O / Analog channel 7 |
| Chân 21 | RC2 — Bidirectional I/O |
| Chân 22 | RC3 — Bidirectional I/O |
| Chân 23 | RC4 — Bidirectional I/O |
| Chân 24 | RC5 — Bidirectional I/O |
| Chân 25 | RC6 — Bidirectional I/O |
| Chân 26 | RC7 — Bidirectional I/O |
| Chân 27 | VSS — Ground (duplicate pin, recommended for layout) |
| Chân 28 | VDD — Positive supply (duplicate pin, recommended for layout) |
Ứng dụng tiêu biểu
PIC16F570T-I/MV phù hợp cho 6 Áp dụngs: Industrial Sensor Signal Conditioning, Battery Chargers (Lead-Acid / Li-Ion), Smart Thermostats and HVAC Controls, LED Lighting Controllers and Dimmers, Low-End Consumer Appliance Control, Portable Battery-Powered Instruments.
Industrial Sensor Signal Conditioning
The PIC16F570T-I/MV's two on-chip op-amps, two comparators, and 8-channel 8-bit ADC allow a single chip to condition a thermocouple or thermistor bridge, digitize the result, and drive a load driver - replacing what would otherwise require two op-amp ICs plus a discrete MCU. With 3 KB flash and 64 bytes RAM, firmware fits comfortably for PID loops or simple hysteresis control. Operating from 2.0 V to 5.5 V on internal 8 MHz oscillator, the part simplifies factory-floor sensor modules that must start immediately on power-up with no external components.
Được đề xuất
Battery Chargers (Lead-Acid / Li-Ion)
Charging algorithms for small lead-acid or Li-Ion packs rely on voltage and current comparators, plus a programmable timer to terminate charging. The PIC16F570T-I/MV's two comparators (with internal 0.6 V / 1.2 V / 2.5 V reference) and 16-bit Timer1 provide exactly this infrastructure without external trip-circuit ICs. The wide 2.0 V to 5.5 V supply range tolerates USB, wall-adapter, or solar input. EEPROM storage (128 bytes) preserves charge-cycle counters across power cycles, and the 25 mA sink-source capability drives status LEDs and optocouplers directly.
Được đề xuất
Smart Thermostats and HVAC Controls
An 8-bit MCU is well-matched to thermostat duty cycles that sample temperature every few seconds, run a bang-bang or PID algorithm, and toggle relays. The PIC16F570T-I/MV's 8-channel ADC reads multiple thermistor inputs (room, outdoor, coil), and its on-chip op-amps buffer high-impedance temperature sensors without external analog components. The 25 I/O pins control a 5x7-segment or character LCD, pushbuttons, the HVAC relay, and a fan-speed triac. Operating at 8 MIPS from 2.0 V to 5.5 V, it runs on two AA cells with a 32 kHz real-time clock.
Được đề xuất
LED Lighting Controllers and Dimmers
LED dimming requires both analog (sensed current for constant-current regulation) and digital (PWM or I2C-controlled brightness) channels; the PIC16F570T-I/MV integrates both. The two on-chip op-amps can sense load current via a sense resistor, while Timer2's PWM output drives the MOSFET gate at up to several hundred kHz. With 25 I/O and 25 mA sink/source per pin, status LED arrays and key-cap backlights are driven directly. Flash-based ICSP also enables in-field firmware upgrades to add new dimming protocols (0-10 V, DALI, ZigBee) without hardware rework.
Được đề xuất
Low-End Consumer Appliance Control
Coffee makers, blenders, slow cookers, and similar white-goods appliances need a single MCU that can read a few buttons, drive a seven-segment display, time a process, and PWM-control a heater or motor - none of which requires more than 3 KB firmware. The PIC16F570T-I/MV's integrated analog (op-amps + comparators + ADC) lets designers monitor NTC temperature probes without an external analog front-end, while EEPROM retains the last-used settings across mains power loss. Industrial -40 C to +85 C rating survives the kitchen-equipment environment.
Được đề xuất
Portable Battery-Powered Instruments
The PIC16F570T-I/MV's 2.0 V to 5.5 V operating range makes it ideal for two-cell AA / AAA or single-cell Li-Ion handheld tools like multimeters, IR thermometers, or pH meters. Low-power sleep modes (down to a few uA when peripherals are gated) stretch battery life, and the internal 8 MHz oscillator eliminates the crystal that would otherwise dominate the BOM. The 8-bit ADC reads sensor inputs while the comparators handle threshold detection (battery-low, over-temperature) without CPU load, freeing the 8 MIPS core to run the human-interface firmware.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F570T-I/MV — 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 | PIC16F570-I/MV | PIC16F570-E/MV | PIC16F570T-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | UQFN-28 (MV) | UQFN-28 (MV) - same | UQFN-28 (MV) - same | SSOP-28 (SS) - different |
| Architecture | PIC16 8-bit | PIC16 8-bit | PIC16 8-bit | PIC16 8-bit |
| Flash Memory | 3 KB | 3 KB | 3 KB | 3 KB |
| RAM | 64 bytes | 64 bytes | 64 bytes | 64 bytes |
| EEPROM | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Integrated Op-Amps | 2 | 2 | 2 | 2 |
| Comparators | 2 | 2 | 2 | 2 |
| ADC | 8 ch x 8-bit | 8 ch x 8-bit | 8 ch x 8-bit | 8 ch x 8-bit |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| I/O Pin Count | 25 | 25 | 25 | 25 |
Bảo phân biệt quan trọng
- On-chip analog engine (2 op-amps + 2 comparators + 8-ch 8-bit ADC) (vsPIC16F506T-I/MG)
- 128 bytes of integrated EEPROM for non-volatile parameter storage (vsPIC12F529T-I/MC)
- 25 I/O pins with 25 mA sink/source capability (vsPIC16F570T-I/SP (SPDIP-28))
Ghi chú thiết kế
Estimated: For 28-pin UQFN layout, fan out the 0.4 mm-pitch perimeter pads with short, equal-length traces to maintain assembly yield. Tie both VDD pins (10, 28) and both VSS pins (9, 27) with wide copper pours and stitch VDD/VSS planes underneath; the exposed thermal pad must be soldered down (preferably to GND) for mechanical rigidity and to dissipate the I/O driver current. Place a 100 nF decoupling cap within 3 mm of each VDD pin and a bulk 4.7 uF within 10 mm. Avoid routing the ICSP RB3/RB4 signals near high-current traces or analog op-amp outputs to prevent programming noise coupling.
Do not assume the internal 8 MHz oscillator is accurate enough for UART or I2C communications - factory trim is approximately +/- 1 percent at room temperature but drifts with temperature and VDD. For any baud-rate-critical design, add an external 20 MHz crystal or switch to the PIC16F1938 family which offers better analog. Also, the on-chip op-amps have a limited input common-mode range (typically 0 V to VDD - 1.4 V at 5 V supply) - rail-to-rail input is not supported; buffer external signals with an MCP6002 if needed.
Keep analog traces (AN0-AN7, op-amp inputs, comparator references) away from RB0-RB7 digital I/O switching lines by at least 2x the trace-to-trace gap to prevent digital noise injection into the ADC. Reference the digital and analog grounds to a single point near the IC's GND pin. The PIC16F570 datasheet section 11 specifies an analog input RC filter (typically 1 kohm + 100 pF) for ADC channels driving high-impedance sources, which is critical when reading thermistors.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; standard part is not AEC-Q100 qualified - choose PIC16F570-E/MV (Extended temperature, -40 C to +125 C) for harsh industrial environments. Halogen-free per Microchip environmental reporting.
