PIC18F1230-E/SO - 8-bit MCU 4KB Flash 25MHz 18-SOIC | Microchip
MPN: PIC18F1230-E/SO ✓ Hoạt độngPIC18F1230-E/SO Tóm tắt
A PIC18F microcontroller is an 8-bit RISC flash MCU belonging to the PIC (Peripheral Interface Controller) family -> 8-bit microcontroller -> microcontroller -> embedded control IC hierarchy. The PIC18F series adds a 16-bit instruction word, hardware multiplier, linear program memory up to 2 MB, and C-friendly architecture to the classic PIC16 baseline, while remaining code-compatible with smaller PIC devices. The 'F' suffix indicates Flash program memory, enabling reprogrammable in-circuit development via ICSP.
Key features include 4 KB (2K x 16) self-programmable Flash, 256 bytes RAM, 16 digital I/O pins, a 10-bit A/D converter, an enhanced 14-bit PWM module with dedicated time-base, and nanoWatt power-managed sleep modes that drop Iq below 1 uA. The 8-bit RISC core executes most instructions in a single 100 ns cycle (at 40 MHz oscillator, FOSC/4 = 10 MHz instruction rate). On-chip peripherals include a USART/SCI, MSSP (SPI/I2C), two analog comparators, and a power-managed timer with 4-bit prescaler.
Typical applications include motor control (BLDC, brushed DC, stepper), low-end digital power conversion, LED lighting drivers with analog dimming, sensor conditioning front-ends, and small appliance controls. The extended -E temperature grade supports outdoor and industrial installations.
When designing with this device, ensure the 5V supply rail has 4.2V-5.5V tolerance under all load transients and that the ICSP programming header is accessible on the PCB. Place a 100 nF decoupling capacitor within 5 mm of the VDD pin and route the MCLR pull-up close to the IC to avoid spurious resets.
This page synthesizes distributor pricing, cross-manufacturer drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the PIC18F1230-E/SO for both new designs and legacy system refresh.
Bộ thay thế dễ dàng lắp đặt cho PIC18F1230-E/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 PIC18F1230-E/SO (cùng hình factor và footprint) — khác nhau ở A/D Converter, Core Architecture, Package, I/O Pins, RoHS Status.
PIC18F1230-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1230T-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F1320-E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1220-E/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F1230-E/SO Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC18 RISC, 8-bit data / 16-bit instruction word |
| Program Memory | 4 KB Flash (2K x 16) |
| RAM | 256 bytes |
| Maximum CPU Clock | 25 MHz (FOSC = 40 MHz, 4 TCY per instruction) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 16 |
| A/D Converter | 10-bit |
| PWM Module | Enhanced 14-bit PWM, 3 channels |
| Communication Peripherals | USART/SCI, MSSP (SPI / I2C) |
| Analog Comparators | 2 |
| Timers | Timer0, Timer1, Timer2 with PWM time-base |
| Power-Saving Modes | nanoWatt (Sleep, Idle, Doze) |
| Operating Temperature (E suffix) | -40C to +125C (Extended Industrial) |
| Hộp | 18-SOIC (0.295", 7.50 mm width) |
| Kiểu lắp đặt | Surface Mount |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F1230-E/SO
| Chân 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| Chân 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| Chân 3 | RA2/AN2/VREF- — Digital I/O / Analog input 2 / A/D VREF- |
| Chân 4 | RA3/AN3/VREF+ — Digital I/O / Analog input 3 / A/D VREF+ |
| Chân 5 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| Chân 6 | RA5/AN4 — Digital I/O / Analog input 4 |
| Chân 7 | RA6/OSC2/CLKO — Digital I/O / Oscillator output |
| Chân 8 | RA7/OSC1/CLKI — Digital I/O / Oscillator input |
| Chân 9 | MCLR/VPP/RE3 — Master Clear (reset) / Programming voltage |
| Chân 10 | VSS — Ground reference |
| Chân 11 | VDD — Positive supply voltage (4.2V-5.5V) |
| Chân 12 | RB0/INT0 — Digital I/O / External interrupt 0 |
| Chân 13 | RB1/INT1 — Digital I/O / External interrupt 1 |
| Chân 14 | RB2/PWM1 — Digital I/O / PWM1 output |
| Chân 15 | RB3/PWM2 — Digital I/O / PWM2 output |
| Chân 16 | RB4/PWM3 — Digital I/O / PWM3 output |
| Chân 17 | RB5/CCP1 — Digital I/O / Capture/Compare/PWM1 |
| Chân 18 | RB6/PGC — Digital I/O / ICSP clock |
Ứng dụng tiêu biểu
PIC18F1230-E/SO phù hợp cho 6 Áp dụngs: Brushed DC Motor Control, LED Lighting Drivers with Analog Dimming, Small Appliance and Home-Appliance Controls, Sensor Conditioning and Signal-Processing Front-Ends, Automotive Cabin and Body Electronics, Battery-Powered IoT Sensor Nodes.
Brushed DC Motor Control
The PIC18F1230-E/SO is purpose-built for low-cost brushed DC motor drives. Its 14-bit enhanced PWM module generates 3 complementary channels with programmable dead-band, while the 25 MHz CPU executes the PID loop at sub-millisecond rates. Two on-chip analog comparators feed the back-EMF zero-cross detection directly into the PWM fault input, eliminating external op-amps. The extended -40C to +125C temperature grade and 4.2V-5.5V supply tolerance cover automotive under-hood and industrial cabinet environments. Compared with discrete motor controllers, this IC reduces BOM count by 30-40% and supports in-field firmware updates via ICSP.
Được đề xuất
LED Lighting Drivers with Analog Dimming
The PIC18F1230-E/SO drives constant-current LED strings via its 14-bit PWM outputs, achieving smooth analog dimming with 16384 brightness steps. The 10-bit A/D reads photodiode sensors for ambient-light feedback, while the nanoWatt sleep modes drop quiescent current below 1 uA when the lamp is off. USART and MSSP peripherals enable DALI or 0-10V dimming protocol stacks without an external transceiver. The 18-SOIC footprint is mechanically compatible with standard LED-driver PCB layouts, and the extended temperature grade suits outdoor luminaires from -40C to +125C junction.
Được đề xuất
Small Appliance and Home-Appliance Controls
Coffee machines, washing-machine pumps, and kitchen-hood fans are ideal applications for the PIC18F1230-E/SO. The 25 MHz CPU handles user-interface debouncing, PWM heating-element control, and safety timers simultaneously. 16 digital I/O pins drive 7-segment displays, capacitive-touch buttons, and relay outputs. The 4 KB Flash accommodates full state-machine firmware plus a USB-to-UART bootloader via the ICSP interface. The -E temperature grade ensures reliability near heating elements and steam, while the 4.2V-5.5V supply tolerates rectified-transformer rail droop at motor startup.
Được đề xuất
Sensor Conditioning and Signal-Processing Front-Ends
The PIC18F1230-E/SO serves as an intelligent analog front-end for industrial sensors. Its 10-bit A/D converter samples up to 9 channels at 100 ksps, while the hardware multiplier accelerates digital filters and scaling math. Dual analog comparators provide window detection for over/under-range alarms without CPU intervention. The MSSP peripheral drives SPI or I2C sensors, and the USART outputs RS-232 or RS-485 to the host PLC. With 4 KB Flash and nanoWatt sleep modes, the IC forms a compact, low-power bridge between analog transducers and digital control networks.
Được đề xuất
Automotive Cabin and Body Electronics
Although not AEC-Q100 qualified, the PIC18F1230-E/SO is widely used in non-safety automotive subsystems such as HVAC actuators, mirror controllers, and seat-adjustment modules. The -E temperature grade (-40C to +125C) covers cabin conditions, and the 5V supply aligns with the automotive 12V-bus post-regulation. The 14-bit PWM produces precise motor-positioning signals for servo-driven mirrors and vents, while the LIN-compatible USART plus timer captures support body-network protocols. Hardware CRC and the 16-bit instruction word enable deterministic, real-time control without an RTOS.
Được đề xuất
Battery-Powered IoT Sensor Nodes
For low-duty-cycle IoT nodes, the PIC18F1230-E/SO delivers extended battery life via nanoWatt sleep modes with <1 uA Iq, periodic wake-up via the watchdog timer, and integrated 10-bit ADC for sensor reads. The 4 KB Flash accommodates simple LoRaWAN or Zigbee MAC stacks, and the USART interfaces with sub-GHz transceivers such as the Microchip MRF89XA. The 256-byte RAM is sufficient for queued sensor samples and protocol buffers. The 18-SOIC package is hand-solderable for prototype IoT boards, and the 4.2V-5.5V supply works directly from a 2x AA alkaline or single Li-ion cell with an LDO.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F1230-E/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 | PIC18F1230-I/SO | PIC18F1230T-I/SO | PIC18F1320-E/SO | PIC18F1220-E/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC (0.295") | 18-SOIC (0.295") - same | 18-SOIC (0.295") - same | 18-SOIC (0.295") - same | 18-SOIC (0.295") - same |
| Program Flash | 4 KB (2K x 16) | 4 KB | 4 KB | 8 KB (+100%) | 4 KB |
| RAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Maximum CPU Clock | 25 MHz / 10 MIPS | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| PWM Module | Enhanced 14-bit, 3 channels | Enhanced 14-bit, 3 channels | Enhanced 14-bit, 3 channels | Standard 10-bit (downgrade) | 10-bit CCP (downgrade) |
| Operating Temperature | -40C to +125C (-E grade) | -40C to +85C (-I grade) | -40C to +85C (-I grade) | -40C to +125C | -40C to +125C |
| I/O Pins | 16 | 16 | 16 | 16 | 16 |
Bảo phân biệt quan trọng
- Enhanced 14-bit PWM module vs standard 10-bit CCP (vsPIC18F1220-E/SO)
- Extended industrial temperature grade (-40C to +125C) vs industrial (-40C to +85C) (vsPIC18F1230-I/SO)
- 4 KB optimized Flash vs 8 KB in PIC18F1320 (vsPIC18F1320-E/SO)
Ghi chú thiết kế
Estimated: the PIC18F1230-E/SO draws ~15 mA active at 25 MHz CPU and <1 uA in Sleep mode. Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 11) and a bulk 10 uF tantalum or aluminum cap on the supply rail. The 4.2V-5.5V VDD range is intentionally narrow to keep ADC accuracy; design the upstream LDO or switching regulator for <50 mV ripple to avoid degrading the 10-bit A/D effective number of bits (ENOB) at full sample rate.
The PIC18F1230-E/SO MCLR pin (pin 9) is internally pulled high by configuration-bit selection. Always include an external 10 kohm pull-up to VDD with a 100 nF cap to ground to prevent spurious resets during noisy motor-drive events. ICSP programming requires the PGC/PGD pins (RB6/RB7) to be free of loading above 50 pF; do not place large LEDs or relays directly on these pins during development.
Route the oscillator traces (OSC1/OSC2, pins 8/7) symmetrically and within 5 mm of the IC with a guard ground on both sides to suppress radiated EMI. The PWM outputs (RB2/RB3/RB4) carry high dV/dt signals; keep these traces short and add series ferrite beads if they exceed 25 mm in length to comply with FCC/CE radiated-emission limits.
Estimated: at VDD = 5.5 V, 25 MHz active CPU, and all I/O toggling at 10 MHz, the 18-SOIC package dissipates roughly 80-100 mW. The 18-SOIC thermal resistance (theta_JA) is approximately 100 C/W, giving a junction temperature rise of 8-10 C above ambient. The -E temperature grade permits ambient up to 125 C, leaving minimal headroom; verify by thermal imaging during prototype characterization.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page; lead-free reflow profile JEDEC J-STD-020 supported. Not AEC-Q100 qualified - for automotive safety applications use PIC18F K-series with AEC-Q100 grade.