PIC16F18856-E/SP - 8-bit MCU, 28KB Flash, 32MHz | Microchip
MPN: PIC16F18856-E/SP ✓ Hoạt độngPIC16F18856-E/SP Tóm tắt
An 8-bit microcontroller is a single-chip computer that integrates a CPU, RAM, program Flash, EEPROM, and peripherals into one package; it sits at the bottom of the embedded hierarchy (8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC). PIC16F18856-E/SP belongs to Microchip's enhanced mid-range PIC16 core family using a modified Harvard RISC architecture with 14-bit instruction words optimized for deterministic, low-power operation across industrial and consumer applications.
Key features include 28KB (16K x 14) self-programmable Flash program memory, 2KB RAM, 256B EEPROM, 32MHz internal oscillator operation, and an integrated 12-bit ADC with computation (ADC2). The device includes CIPs such as Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), and Zero-Cross Detect (ZCD), reducing external component count and BOM cost. Functional Safety hardware diagnostics, CRC/SCAN, and Hardware Limit Timer (HLT) support IEC 61508 SIL-2 capable designs.
The device uses a 14-bit instruction width RISC pipeline with a hardware stack and 31-level deep interrupt priority, supporting C-friendly development through MPLAB XC8 compilers. The internal 32MHz oscillator can be tuned using HFINTOSC and provides selectable frequency steps, eliminating the need for an external crystal in many designs while keeping accurate UART and timing performance.
Typical applications include industrial sensor interfaces, battery-powered IoT nodes, low-power remote controls, motor control peripheral drivers, automotive body electronics, home-automation controllers, and general-purpose logic-replacement boards. The 28-SPDIP package and -40C to +125C extended temperature range make it ideal for prototyping on breadboards or through-hole production boards requiring easy rework.
When designing with this device, ensure decoupling with a 100nF ceramic capacitor close to VDD/AVDD and VSS, place the ICSP/PGD/PGC traces away from noisy switching nodes, and verify that the configuration-word settings match the application voltage and oscillator mode. The device's CIPs can replace several discrete logic ICs, simplifying PCB layout and reducing cost.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the standalone manufacturer datasheet, providing a single reference for sourcing, replacement, and design decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC16F18856-E/SP — 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 PIC16F18856-E/SP (cùng hình factor và footprint) — khác nhau ở Program Memory (Flash), ADC, Core Architecture, Package, Mounting Type.
PIC16F18856-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18857-E/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18855-E/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18876-E/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18855-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18854-E/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18856-E/SP Tỷ lệ tối đa & tính chất điện
| Product Family | PIC16F1885x/7x (XLP, FuSa, CIP) |
| Core Architecture | 8-bit PIC Enhanced Mid-Range (14-bit instruction) |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data RAM | 2 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Nhiệt độ hoạt động | -40C to +125C (E = Extended) |
| Hộp / Vỏ | 28-SPDIP (Skinny Plastic DIP), 0.300 inch / 7.62 mm row spacing |
| Số chân | 28 |
| Kiểu lắp đặt | Through-Hole |
| Core Independent Peripherals (CIP) | CLC, CWG, NCO, ZCD, CRC/SCAN, HLT |
| Functional Safety | FuSa features supporting IEC 61508 SIL-2 capable designs |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 1 (unlimited floor life at <30C / 85% RH) |
Cấu hình chân PIC16F18856-E/SP
| Chân 1 | RA3/MCLR/VPP — Master Clear (Reset, active-low) / ICSP programming voltage |
| Chân 2 | RA4/OSC2/CLKOUT — GPIO RA4 / oscillator output / clock output |
| Chân 3 | RA5/OSC1/CLKIN — GPIO RA5 / oscillator input / clock input |
| Chân 4 | RA6 — GPIO RA6 |
| Chân 5 | RA7 — GPIO RA7 |
| Chân 6 | RC0 — GPIO RC0 |
| Chân 7 | RC1 — GPIO RC1 |
| Chân 8 | RC2 — GPIO RC2 |
| Chân 9 | RC3 — GPIO RC3 |
| Chân 10 | RC4 — GPIO RC4 |
| Chân 11 | RC5 — GPIO RC5 |
| Chân 12 | RC6 — GPIO RC6 |
| Chân 13 | RC7 — GPIO RC7 |
| Chân 14 | VSS — Ground reference |
| Chân 15 | VDD — Positive supply voltage (1.8V to 5.5V) |
| Chân 16 | RB4 — GPIO RB4 |
| Chân 17 | RB5 — GPIO RB5 |
| Chân 18 | RB6/PGC — GPIO RB6 / ICSP clock (PGC) |
| Chân 19 | RB7/PGD — GPIO RB7 / ICSP data (PGD) |
| Chân 20 | RD0 — GPIO RD0 |
| Chân 21 | RD1 — GPIO RD1 |
| Chân 22 | RD2 — GPIO RD2 |
| Chân 23 | RD3 — GPIO RD3 |
| Chân 24 | RD4 — GPIO RD4 |
| Chân 25 | RD5 — GPIO RD5 |
| Chân 26 | RD6 — GPIO RD6 |
| Chân 27 | RD7 — GPIO RD7 |
| Chân 28 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC16F18856-E/SP phù hợp cho 8 Áp dụngs: Industrial Sensor Interface, Battery-Powered IoT Nodes, Low-Power Remote Controls, Automotive Body Electronics, Home-Automation Controllers, Logic Replacement Boards, Motor Control Peripheral Drivers, Sensor Modules and Prototyping Boards.
Industrial Sensor Interface
The PIC16F18856-E/SP fits industrial sensor interfaces thanks to its 12-bit ADC with computation (ADC2) and CIPs that handle signal conditioning autonomously. With 32MHz CPU clock and 28KB Flash, the MCU can run multi-protocol sensor stacks while the CLC and NCO replace external timer/logic ICs. Its -40C to +125C extended temperature grade and 28-SPDIP package simplify factory-floor PCBs.
Được đề xuất
Battery-Powered IoT Nodes
XLP technology makes the PIC16F18856-E/SP ideal for battery-powered IoT nodes running at 1.8V to 5.5V from a single cell or two AA cells. The 32MHz HFINTOSC eliminates the external crystal, and nA-range sleep currents extend battery life to years. CIPs like ZCD and CWG let the MCU wake on AC zero-cross or generate waveforms without waking the CPU, further lowering average power.
Được đề xuất
Low-Power Remote Controls
The PIC16F18856-E/SP suits remote controls because it can stay in deep sleep at nA current and wake on a peripheral interrupt to drive IR or RF transmitters through the CWG. The 28KB Flash is plenty for protocol stacks (NEC, RC5, BLE HCI command sets), while 2KB RAM holds buffers and timers. The through-hole 28-SPDIP package simplifies hand-built remote-control prototypes.
Được đề xuất
Automotive Body Electronics
The PIC16F18856-E/SP suits automotive body electronics like interior lighting, seat controllers, and door modules where Functional Safety (FuSa) diagnostics and -40C to +125C operation matter. Hardware Limit Timer (HLT), CRC/SCAN, and the IEC 61508 SIL-2 capable design path support ASIL-A subsystems. The 28-SPDIP package aids bench rework and field replacement in service environments.
Được đề xuất
Home-Automation Controllers
The PIC16F18856-E/SP can act as a home-automation hub node, controlling relays, dimmers, and sensors across UART, I2C, or SPI. The 12-bit ADC measures analog sensors, while CLC and CWG generate PWM for LED dimming and motor control without CPU overhead. XLP keeps idle nodes under 1uA, letting them run years on coin cells.
Được đề xuất
Logic Replacement Boards
The PIC16F18856-E/SP replaces discrete logic ICs on glue-logic boards using its CLCs, NCO, and CWG peripherals to synthesize AND/OR/XOR gates, frequency synthesis, and complementary PWM waveforms in hardware. The 28-SPDIP package fits retrofits of legacy through-hole logic boards, while MPLAB XC8 C-friendly development cuts firmware cost. Functional Safety diagnostics add reliability for industrial retrofits.
Được đề xuất
Motor Control Peripheral Drivers
The PIC16F18856-E/SP drives stepper, brushed DC, and small BLDC motors through its CWG peripheral producing complementary PWM with dead-band, and the NCO for precise commutation timing. The 12-bit ADC reads back current and back-EMF while 32MHz CPU clock supports FOC algorithms. The 28-SPDIP package simplifies bench testing of motor-control prototypes.
Được đề xuất
Sensor Modules and Prototyping Boards
The PIC16F18856-E/SP suits hobbyist and educational sensor modules because the 28-SPDIP package plugs directly into breadboards and strip-boards. The integrated 12-bit ADC, internal 32MHz oscillator, and 28KB Flash are sufficient for environmental sensing, robotics, and STEM course labs. The XLP feature lets students measure deep-sleep currents for low-power lessons.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F18856-E/SP — 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 | PIC16F18856-I/SP | PIC16F18857-E/SP | PIC16F18855-E/SP | PIC16F18876-E/SP | PIC16F18855-I/SP | PIC16F18854-E/SP |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Max CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) |
| Core Independent Peripherals | CLC, CWG, NCO, ZCD, CRC/SCAN, HLT | Same CIP set | Same CIP set | Same CIP set | Same CIP set | Same CIP set | Same CIP set |
Bảo phân biệt quan trọng
- Larger Flash memory than PIC16F18855 (vsPIC16F18855-E/SP)
- Extended temperature grade over PIC16F18856-I/SP (vsPIC16F18856-I/SP)
- Higher-Flash upgrade path on same footprint (vsPIC16F18854-E/SP)
Ghi chú thiết kế
Place a 100nF ceramic decoupling capacitor as close as possible to each VDD/AVDD pin, with a 10uF bulk capacitor near the IC supply pin. The PIC16F18856-E/SP supports an extremely wide 1.8V to 5.5V supply; for noisy environments add a ferrite bead and 10uF + 100nF decoupling on AVDD separately to keep ADC readings clean. Use the internal 32MHz HFINTOSC and disable the FVR when unused to minimize quiescent current.
Keep ICSP/PGD (pin 19) and ICSP/PGC (pin 18) traces short and away from high-frequency switching nodes to avoid programming issues. MCLR/VPP (pin 1) requires a 10kohm pull-up to VDD and a 100nF cap to ground for in-circuit programming. Route the 32kHz secondary oscillator pins away from high-current traces if you use the timer1 external crystal.
The integrated 12-bit ADC with computation (ADC2) can resolve 1 LSB down to ~200uV at 5V VREF. For accurate readings, enable the FVR as ADC reference, average 16+ samples, and add an RC anti-aliasing filter on analog inputs (typically 1kohm + 100nF). The CIPs like CLC and NCO can run independently of the CPU, allowing deterministic signal generation without CPU jitter.
Do not leave unused I/O pins floating - configure them as outputs low or inputs with internal weak pull-ups to avoid spurious interrupts. Verify the configuration-word BOR/OST/PWRTE settings match the application's brownout and startup requirements. When migrating from PIC16F18855 (14KB Flash), verify the linker script accounts for the larger 28KB Flash region on PIC16F18856, or the build will overflow silently.
Estimated: at 32MHz CPU clock and 5V VDD, the PIC16F18856-E/SP typical active current is ~5mA and core power dissipation is ~25mW. The 28-SPDIP package thermal resistance (theta_JA) is approximately 60 C/W, so junction temperature rise above ambient is ~1.5 C - well within the -40C to +125C extended grade. No heatsink is required.
Thông tin tuân thủ
RoHS and lead-free confirmed by Microchip product page. Not AEC-Q100 qualified; the E suffix denotes extended industrial temperature grade only. Functional Safety features support IEC 61508 SIL-2 capable designs but require additional system-level qualification.
