PIC18F1230-E/P - 8-bit 4KB Flash MCU 40MHz DIP-18 | Microchip
MPN: PIC18F1230-E/P ✓ Hoạt độngPIC18F1230-E/P Tóm tắt
An 8-bit PIC microcontroller belongs to the class of reduced-instruction-set computing (RISC) microcontrollers based on Harvard architecture, where program and data buses are physically separate. This architecture, combined with a 16-bit instruction word, allows most instructions to execute in a single instruction cycle. PIC microcontrollers sit within the broader category of microcontrollers (MCUs), embedded computing subsystems that integrate CPU, RAM, Flash, and peripherals on a single silicon die. The PIC18F family is Microchip's mid-range 8-bit line, positioned between baseline PIC10/12/16 families and high-pin-count PIC24/dsPIC parts, offering a balance of performance, peripheral integration, and cost for general embedded designs.
Key features of the PIC18F1230-E/P include 4 KB Flash program memory, 256 bytes of RAM, 16 I/O pins, a 10-bit A/D converter with multiple channels, an enhanced PWM module with dedicated 14-bit resolution for motor-control-class waveforms, and nanoWatt Technology sleep/Idle modes that reduce quiescent current to microampere levels. The integrated power-management PWM makes this part particularly suited to switched-mode and digital-motor-control applications where a separate PWM controller would otherwise be required.
Architecturally, the PIC18F1230 leverages a modified Harvard core with a 16-bit wide program memory bus and an 8-bit data bus, a hardware multiplier for 8x8 unsigned operations in one cycle, and an interrupt controller with multiple priority levels. The 40 MHz oscillator drives a four-phase instruction pipeline, achieving 10 MIPS peak throughput. The 10-bit successive-approximation A/D converter supports up to 8 channels with automatic acquisition timing.
Typical applications include DC motor control (BLDC, brushed, and stepper), power-conversion control loops, low-cost PWM-driven LED dimming, and general-purpose embedded control where the integrated high-resolution PWM eliminates the need for an external PWM IC. The 18-pin PDIP footprint also makes it attractive for hobbyist, educational, and through-hole prototyping applications.
When designing with the PIC18F1230-E/P, ensure that the ICSP programming header is accessible and that decoupling capacitors (typically 100 nF ceramic) are placed as close as possible to VDD/VSS pins. The Extended temperature grade (-40C to +125C) makes this specific variant suitable for industrial and automotive-under-hood applications, but a less expensive Industrial (-40C to +85C) grade is also available in the same package.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18F1230-E/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 PIC18F1230-E/P (cùng hình factor và footprint) — khác nhau ở Package, Program Memory (Flash), Operating Temperature, Mounting Type, Supply Voltage (VDD).
PIC18F1230-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1220-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1220-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1220-H/P
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F1330-I/P
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F1230-E/P Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Microcontroller (MCU) |
| Family | PIC18F |
| Program Memory (Flash) | 4 KB |
| RAM | 256 bytes |
| Maximum Clock Speed | 40 MHz |
| Instruction Throughput | 10 MIPS |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 16 |
| A/D Converter | 10-bit, multi-channel |
| PWM Module | Enhanced, dedicated 14-bit |
| Hộp | 18-pin PDIP (DIP-18, 0.300") |
| Nhiệt độ hoạt động | -40C to +125C (Extended grade) |
| Kiểu lắp đặt | Through-Hole |
| ROM Type | Flash |
| Lifecycle Stage | Active (In Production) |
Cấu hình chân PIC18F1230-E/P
| Chân 1 | MCLR/VPP/RA5 — Master Clear (Reset) input / programming voltage / digital I/O |
| Chân 2 | RA0/AN0 — Digital I/O / analog input channel 0 |
| Chân 3 | RA1/AN1 — Digital I/O / analog input channel 1 |
| Chân 4 | RA2/AN2/VREF- — Digital I/O / analog input channel 2 / A/D negative voltage reference |
| Chân 5 | RA3/AN3/VREF+ — Digital I/O / analog input channel 3 / A/D positive voltage reference |
| Chân 6 | RA4/AN4 — Digital I/O / analog input channel 4 |
| Chân 7 | VSS — Ground reference |
| Chân 8 | RA6/OSC2/CLKO — Digital I/O / oscillator output / clock output |
| Chân 9 | RA7/OSC1/CLKI — Digital I/O / oscillator input / clock input |
| Chân 10 | RB0/PWM1 — Digital I/O / enhanced PWM output 1 |
| Chân 11 | RB1/PWM2 — Digital I/O / enhanced PWM output 2 |
| Chân 12 | RB2/PWM3 — Digital I/O / enhanced PWM output 3 |
| Chân 13 | RB3 — Digital I/O |
| Chân 14 | RB4 — Digital I/O |
| Chân 15 | RB5 — Digital I/O |
| Chân 16 | RB6/PGC — Digital I/O / ICSP clock input |
| Chân 17 | RB7/PGD — Digital I/O / ICSP data input/output |
| Chân 18 | VDD — Positive supply voltage (4.2 V to 5.5 V) |
Ứng dụng tiêu biểu
PIC18F1230-E/P phù hợp cho 6 Áp dụngs: Brushless DC (BLDC) Motor Control, Switched-Mode Power Supply (SMPS) Control, PWM-Driven LED Lighting and Dimming, Industrial Sensor Signal Conditioning, Educational and Hobbyist Embedded Projects, Automotive Under-Hood Auxiliary Controls.
Brushless DC (BLDC) Motor Control
The PIC18F1230-E/P's enhanced Power-Control PWM module with six dedicated outputs and 14-bit resolution directly drives the gate drivers of a 3-phase BLDC motor bridge, replacing a dedicated motor-control IC. With a 40 MHz clock and 10 MIPS throughput, the firmware can execute field-oriented control or trapezoidal commutation at 20 kHz without CPU saturation. The 10-bit A/D converter samples back-EMF and current-sense signals at PWM-synchronized intervals, while nanoWatt sleep modes cut idle current to under 1 uA for battery-powered tools. The 18-pin PDIP form factor suits through-hole hobbyist motor-control boards.
Được đề xuất
Switched-Mode Power Supply (SMPS) Control
In isolated and non-isolated DC-DC converters, the PIC18F1230-E/P provides closed-loop PWM control with 14-bit duty-cycle resolution, fast PWM interruption on analog comparator events, and high-speed 10-bit A/D for output-voltage sensing. The 40 MHz / 10 MIPS throughput supports peak-current-mode control at switching frequencies above 200 kHz. Hardware fault inputs immediately latch the PWM outputs low, providing cycle-by-cycle current limiting. nanoWatt modes allow standby power reduction when the load is light, meeting energy-efficiency targets such as 80 PLUS for AC-DC adapters.
Được đề xuất
PWM-Driven LED Lighting and Dimming
The PIC18F1230-E/P delivers flicker-free logarithmic or linear dimming curves for architectural and horticultural LED drivers via its enhanced PWM module, which supports complementary outputs with programmable dead-band for synchronous-buck topologies. Multiple PWM channels enable individual RGB-channel or warm/cool white control without external timer ICs. The 10-bit A/D reads ambient-light sensors or potentiometers for closed-loop brightness control, while nanoWatt Idle mode and interrupt-driven wakeup preserve battery life in portable lighting fixtures.
Được đề xuất
Industrial Sensor Signal Conditioning
Industrial 4-20 mA loop-powered transmitters and bridge-sensor interfaces benefit from the PIC18F1230-E/P's integrated 10-bit A/D, hardware multipliers, and extended -40C to +125C temperature range. The chip acquires ratiometric sensor measurements, applies digital filtering, and linearizes outputs without external op-amps, while the nanoWatt Sleep mode keeps idle current under 1 uA for intrinsically safe loops. The 18-pin PDIP package also suits legacy through-hole industrial backplanes and legacy PLC I/O modules.
Được đề xuất
Educational and Hobbyist Embedded Projects
The PIC18F1230-E/P's 18-pin PDIP through-hole footprint is breadboard-friendly, allowing hobbyists and university students to insert the chip directly into solderless breadboards without SMD reflow. The PIC18 instruction set, MPLAB X IDE, and XC8 compiler form a free development chain supported by thousands of tutorials. The 4 KB Flash comfortably fits introductory programs including servo control, sensor reading, and UART communication. The Extended temperature grade also tolerates student-lab mishandling.
Được đề xuất
Automotive Under-Hood Auxiliary Controls
The Extended -40C to +125C operating temperature grade of the PIC18F1230-E/P supports automotive under-hood auxiliary functions such as fan-speed controllers, water-pump PWM drivers, and HVAC damper actuators. The enhanced PWM module with fault shutdown handles inductive loads safely, while the 10-bit A/D monitors thermistor inputs for thermal protection. While not AEC-Q100 qualified in this exact MPN, designers targeting AEC-Q100 should consider the PIC18F1220-H/P automotive grade or PIC18F-K40 family.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F1230-E/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 | PIC18F1230-I/P | PIC18F1220-E/P | PIC18F1220-I/P | PIC18F1220-H/P | PIC18F1330-I/P |
|---|---|---|---|---|---|---|
| Package | PDIP-18 (DIP-18) | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 4 KB | 4 KB | 2 KB (-50%) | 2 KB (-50%) | 2 KB (-50%) | 8 KB (+100%) |
| Maximum Clock Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +150C (Automotive) | -40C to +85C (Industrial) |
| I/O Pins | 16 | 16 | 16 | 16 | 16 | 16 |
| Supply Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V |
| A/D Converter | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| PWM Module | Enhanced 14-bit | Enhanced 14-bit | Enhanced 14-bit | Enhanced 14-bit | Enhanced 14-bit | Enhanced 14-bit |
Bảo phân biệt quan trọng
- Extended temperature grade in standard PDIP-18 package (vsPIC18F1230-I/P)
- 4 KB Flash - twice the PIC18F1220 family (vsPIC18F1220-E/P)
- Integrated 14-bit enhanced PWM module (vsPIC18F1330-I/P)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD/VSS pin pair (pin 7 VSS, pin 18 VDD for DIP-18). Add a bulk 10 uF tantalum or aluminum-polymer capacitor at the board power-entry point. The PIC18F1230-E/P's internal voltage regulator requires a low-impedance supply; noisy rails can cause brown-out resets or corrupted Flash writes during ICSP. For battery-powered designs, the nanoWatt Sleep mode draws <1 uA typical at 25C - verify against datasheet DC characteristics at your specific VDD and temperature corner.
Route the MCLR/VPP/RA5 pin to a 10 kohm pull-up to VDD and to the ICSP programming header. Without this pull-up the device may randomly enter Reset state in noisy environments. Keep high-current switching traces (PWM outputs driving FET gates) at least 5 mm away from the analog input pins (RA0-RA4) and use a ground guard ring around analog traces to minimize switching noise coupling into A/D measurements.
Do not connect an external crystal directly across OSC1/OSC2 without loading capacitors - 18-pin PIC18 devices require 15-33 pF load caps selected per crystal manufacturer ESR specifications. When using the internal 8 MHz oscillator (INTOSC) for cost savings, the PLL can synthesize up to 32 MHz but PLLEN must be configured in CONFIG1L. Also: configuration bits (CONFIG1H, CONFIG2L, etc.) are Flash-programmed and lock device options - verify FOSC, WDTE, and LVP settings before bulk programming.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page (verified 2026-09-26). PIC18F1230-E/P is not AEC-Q100 qualified; for automotive-grade equivalent in 18-pin PDIP, consider PIC18F1220-H/P (AEC-Q100).
