PIC16F1508T-I/SO - 8-Bit MCU, 7KB Flash, 20MHz, 20-SOIC | Microchip
MPN: PIC16F1508T-I/SO ✓ Hoạt độngPIC16F1508T-I/SO Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (typically Flash), working RAM, peripheral interfaces (timers, ADC, communication ports), and general-purpose I/O on one die. The PIC16F1508 belongs to the product hierarchy: microcontroller -> 8-bit MCU -> PIC16 family -> enhanced mid-range core -> Microchip mid-range portfolio, and is targeted at cost-sensitive embedded control that needs more analog and timer hardware than legacy PIC16F parts.
Key features include a 10-bit ADC with up to 12 channels, a 5-bit DAC, Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), multiple 8/16-bit timers with PWM, an Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART), and I2C/SPI peripherals. The nanoWatt XLP technology delivers deep-sleep currents in the microamp range, making the device suitable for always-on battery applications.
Architecturally, the PIC16F1508 uses Microchip's enhanced mid-range 14-bit instruction set with a single-cycle hardware multiplier and a vectored interrupt controller, providing deterministic real-time response. The internal 16 MHz high-accuracy oscillator (HFINTOSC, ±1% typical after calibration) supports operation without an external crystal in space-constrained designs.
Typical applications include consumer appliances, LED lighting controllers, sensor nodes, low-power IoT endpoints, battery chargers, and small motor-control subsystems. Industrial use cases span HVAC actuator interfaces, simple PLC I/O expansion, and human-machine interface (HMI) button/keypad scanning.
When designing with this MCU, reserve one I/O line for the In-Circuit Serial Programming (ICSP) interface and another for MCLR reset if in-circuit debugging is required; if not, internal weak pull-up on MCLR allows a smaller BOM. Always derate the maximum FOSC against VDD per the datasheet electrical characteristics to avoid oscillator instability at low voltage.
This page combines current distributor pricing, drop-in same-footprint alternatives, and practical design considerations to support engineering evaluation and procurement decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1508T-I/SO — 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 PIC16F1508T-I/SO (cùng hình factor và footprint) — khác nhau ở Package, Program Memory (Flash), ADC, Operating Temperature, Timers.
PIC16F1508-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1509-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1507-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1508T-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1508T-I/SO Tỷ lệ tối đa & tính chất điện
| Core | PIC16 enhanced mid-range 8-bit |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| SRAM | 256 B |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| Supply Voltage (VDD) | 2.3 V to 5.5 V |
| Digital I/O Pins | 18 |
| ADC | 10-bit, up to 12 channels |
| DAC | 5-bit, 1 channel |
| Timers | Multiple 8/16-bit with PWM |
| Communication | EUSART, I2C, SPI |
| Special Peripherals | CLC, CWG, NCO |
| Low-Power Feature | nanoWatt XLP |
| Nhiệt độ hoạt động | -40 °C to +85 °C (Industrial, "I") |
| Hộp | 20-pin SOIC (SO), wide-body, tape and reel |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F1508T-I/SO
| Chân 1 | RA3/AN3/C1IN+/VREF+ — Bidirectional I/O / analog input / comparator input / ADC reference |
| Chân 2 | RA4/AN4/T0CKI — Bidirectional I/O / analog input / Timer0 clock input |
| Chân 3 | RA5/MCLR/VPP — Bidirectional I/O / Master Clear (reset) / ICSP programming voltage |
| Chân 4 | RA6/OSC2/CLKOUT — Bidirectional I/O / oscillator output / clock out |
| Chân 5 | RA7/OSC1/CLKIN — Bidirectional I/O / oscillator input / external clock in |
| Chân 6 | VSS — Ground reference |
| Chân 7 | VDD — Positive supply voltage |
| Chân 8 | RB4/AN10/SDI/SDA — Bidirectional I/O / analog input / SPI data in / I2C data |
| Chân 9 | RB5/AN11/RX/DT — Bidirectional I/O / analog input / EUSART RX |
| Chân 10 | RB6/ICSPCLK/SCK/SCL — Bidirectional I/O / ICSP clock / SPI clock / I2C clock |
| Chân 11 | RB7/ICSPDAT/TX/CK — Bidirectional I/O / ICSP data / EUSART TX |
| Chân 12 | RA0/AN0/DACOUT — Bidirectional I/O / analog input / DAC output |
| Chân 13 | RA1/AN1 — Bidirectional I/O / analog input |
| Chân 14 | RA2/AN2 — Bidirectional I/O / analog input |
| Chân 15 | RC0/AN8 — Bidirectional I/O / analog input |
| Chân 16 | RC1/AN9 — Bidirectional I/O / analog input |
| Chân 17 | RC2/AN6 — Bidirectional I/O / analog input |
| Chân 18 | RC3/AN7 — Bidirectional I/O / analog input |
| Chân 19 | RC4/AN5 — Bidirectional I/O / analog input |
| Chân 20 | RC5 — Bidirectional I/O |
Ứng dụng tiêu biểu
PIC16F1508T-I/SO phù hợp cho 6 Áp dụngs: Consumer Appliance Control, LED Lighting Controllers, Battery-Powered IoT Sensor Nodes, Industrial HVAC Actuator Interfaces, HMI Button and Keypad Scanning, Small Motor Control Subsystems.
Consumer Appliance Control
The PIC16F1508T-I/SO fits consumer appliance control boards (rice cookers, coffee machines, washing machine user interfaces) because its 20 MHz core, 18 I/O, and 7 KB Flash easily handle button-scanning state machines and PWM-driven indicator or buzzer control. The 2.3–5.5 V supply tolerates direct 3.3 V or 5 V rails without a regulator, and nanoWatt XLP deep-sleep currents below 1 µA keep standby power within Energy Star limits on always-on appliances.
Được đề xuất
LED Lighting Controllers
For LED drivers and addressable RGB strips, the PIC16F1508T-I/SO provides dedicated CWG and NCO peripherals for clean PWM generation at fixed frequencies without CPU overhead, plus a 10-bit ADC for ambient-light feedback loops. Running at 20 MHz from a 5 V rail, the MCU generates multiple PWM channels simultaneously with precise duty resolution, while deep-sleep mode keeps idle power negligible when lighting is off.
Được đề xuất
Battery-Powered IoT Sensor Nodes
The PIC16F1508T-I/SO targets coin-cell or 2xAA battery sensor nodes thanks to nanoWatt XLP sleep currents under 1 µA and a 2.3 V minimum VDD that lets it run directly from a single Li-MnO2 cell without boost. Its 12-channel 10-bit ADC handles multiple analog sensors, EUSART supports module-based wireless daughter boards, and 7 KB Flash accommodates sensor-fusion or LoRaWAN/Sigfox application code with periodic wake/sleep duty cycling.
Được đề xuất
Industrial HVAC Actuator Interfaces
In HVAC damper and valve actuators, the PIC16F1508T-I/SO's 18 I/O drives multiple opto-isolated relay or TRIAC outputs while the 10-bit ADC reads thermistor/pressure inputs, all within the industrial -40 °C to +85 °C temperature window. The EUSART and I2C peripherals expose a service-port interface for field technicians, and the 7 KB Flash stores calibration curves and PID control loops without external memory.
Được đề xuất
HMI Button and Keypad Scanning
The PIC16F1508T-I/SO is well suited to matrix keypad or capacitive-touch scanning because its CLC peripheral combines logic gates in hardware, freeing the CPU from polling duty. With 18 I/O available, it scans 4x4 or 5x5 key matrices directly, while interrupt-on-change wakes the MCU from sleep on keypress, minimizing power and reducing BOM cost versus dedicated touch controllers.
Được đề xuất
Small Motor Control Subsystems
The PIC16F1508T-I/SO controls small DC, stepper, or BLDC motors in low-power subsystems using its 16-bit PWM and CWG peripherals for complementary gate-drive signals. The 20 MHz core handles trapezoidal or simple FOC commutation loops, and the 5-bit DAC provides an offset reference for current-sense amplifiers. Designers value the 2.3–5.5 V range, which supports direct operation from 1S Li-ion or 3.3 V rails.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1508T-I/SO — 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 | PIC16F1508-I/SO | PIC16F1509-I/SO | PIC16F1507-I/SO | PIC16F1508T-I/SS |
|---|---|---|---|---|---|
| Package | 20-SOIC (SO) | 20-SOIC (SO) | 20-SOIC (SO) | 20-SOIC (SO) | 20-SSOP (SS) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 7 KB | 7 KB | 14 KB | 3.5 KB | 7 KB |
| SRAM | 256 B | 256 B | 512 B | 128 B | 256 B |
| I/O Pins | 18 | 18 | 18 | 18 | 18 |
| Maximum CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| Packaging Suffix | Tape & Reel | Tray | Tray | Tray | Tape & Reel |
| Unit Price (qty 1, USD) | 1.65 | 1.60 | 1.78 | 1.42 | 1.70 |
Bảo phân biệt quan trọng
- Configurable Logic Cells (CLC) and Complementary Waveform Generator (CWG) (vsPIC16F1507-I/SO)
- Higher Flash and RAM headroom in same footprint (vsPIC16F1507-I/SO)
- Cost-effective general-purpose 8-bit MCU at low price point (vsPIC16F1509-I/SO)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 7) on the 20-SOIC package, plus a bulk 1–10 µF tantalum or ceramic capacitor on the supply rail. If using the ADC, add a small ferrite bead or resistor in series with the analog VDD to isolate digital switching noise from analog references; this typically improves ADC SNR by 2–3 dB.
The MCLR pin (RA5, pin 3) is the ICSP programming voltage input. If you tie MCLR directly to VDD without a series resistor or filter, ESD events or programmer misoperation can latch-up the part; the datasheet recommends a 10–47 kΩ pull-up to VDD with an optional 100 nF cap for in-circuit programming. Always reserve the ICSPDAT and ICSPCLK pins (RB7/RB6) - they must not be hardwired to ground or VDD during programming.
When targeting nanoWatt XLP deep-sleep currents under 1 µA, ensure all unused I/O are configured as outputs (driven low to avoid floating-input leakage) and disable unused peripherals via their PMD (peripheral module disable) registers. Wake-on-interrupt from sleep requires the ADC and comparators to be turned off before SLP instruction; otherwise sleep current can rise to tens of µA.
Keep the 20-SOIC footprint's pin 1 dot/marker orientation consistent with your schematic symbol; the part is symmetrical-looking at a glance but pin 1 carries VPP/MCLR with special handling. Route the high-current motor or LED PWM outputs on RC2/RC3/RC4/RC5 away from the analog ADC inputs (AN0–AN11) to minimize capacitive coupling into the ADC sample-and-hold.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page; not AEC-Q100 qualified (industrial grade only). Halogen-free status not explicitly confirmed in the provided data.
