PIC18F2620-E/SO - 8-Bit MCU 25MHz 64KB Flash 28-SOIC | Microchip
MPN: PIC18F2620-E/SO ✓ Hoạt độngPIC18F2620-E/SO Tóm tắt
Key features include 10 MIPS performance from a C-compiler-optimized RISC architecture, single-cycle 8x8 hardware multiplier, Fail-Safe Clock Monitor for safe shutdown on clock failure, and a separate-oscillator Watchdog Timer for robust field operation. The PIC18F2620 family introduces design enhancements that make these microcontrollers a logical choice for many high-performance and power-sensitive applications. NanoWatt power management, Enhanced Capture/Compare/PWM (ECCP) modules, and a 10-bit ADC round out the peripheral set.
What is a PIC18F microcontroller? The PIC18F is Microchip's enhanced 8-bit Harvard-architecture RISC MCU family - a microcontroller is a single-chip computer integrating CPU, memory, and peripherals. PIC18F -> PIC18 family -> PIC microcontrollers -> 8-bit MCU -> microcontroller -> embedded IC. This taxonomy positions the part at the high end of the 8-bit performance range, between baseline PIC16 parts and the 16-bit dsPIC/PIC24 line.
Typical applications include industrial control nodes, sensor conditioning with on-chip ADC, USB-less (pre-PIC18F2550 family) embedded control, white-goods motor control via ECCP, and battery-backed instrumentation where nanoWatt modes extend runtime. The -E suffix denotes the -40C to +125C extended operating-temperature range suitable for industrial and outdoor environments.
When designing with this device, place a 0.1 uF decoupling capacitor within 5 mm of each power pin (VDD/VSS pairs) and use a 10 uF bulk capacitor near the IC. Configure the MCLR pin with the recommended 10 kohm pull-up to VDD to avoid spurious resets during power-up. The internal 8 MHz oscillator trims via OSCCON registers and the PLL can multiply the internal clock, allowing BOM savings versus an external crystal.
Bộ thay thế dễ dàng lắp đặt cho PIC18F2620-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 PIC18F2620-E/SO (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Core Architecture, Program Memory (Flash).
PIC18F2620-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2620T-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2520-E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F25K22-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2580-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F2620-E/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Core | PIC18F |
| Family | PIC18F2525/2620/4525/4620 |
| Maximum CPU Speed | 25 MHz (10 MIPS) |
| Program Memory | 64 KB Flash (32K x 16) |
| RAM | 3,968 bytes |
| I/O Pins | 25 |
| Điện áp cung cấp | 4.2 V to 5.5 V |
| Nhiệt độ hoạt động | -40 C to +125 C (Extended, -E suffix) |
| Hộp | 28-pin SOIC (wide-body) |
| Kiểu lắp đặt | Surface Mount |
| ADC | 10-bit |
| Internal Oscillator | 31 kHz to 8 MHz |
| Hardware Multiplier | 8 x 8 single-cycle |
| Watchdog Timer | Yes, with separate RC oscillator |
| Fail-Safe Clock Monitor | Yes |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F2620-E/SO
| Chân 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| 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 / ADC VREF- |
| Chân 5 | RA3/AN3/VREF+ — Digital I/O / analog input channel 3 / ADC VREF+ |
| Chân 6 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — Digital I/O / analog input channel 4 / SPI slave select |
| Chân 8 | OSC1/RA7 — Crystal oscillator input / digital I/O |
| Chân 9 | OSC2/RA6 — Crystal oscillator output / digital I/O |
| Chân 10 | VSS — Ground reference |
| Chân 11 | VDD — Positive supply (4.2 V to 5.5 V) |
| Chân 12 | RB0/INT0 — Digital I/O / external interrupt 0 |
| Chân 13 | RB1/INT1 — Digital I/O / external interrupt 1 |
| Chân 14 | RB2 — Digital I/O |
| Chân 15 | RB3 — Digital I/O |
| Chân 16 | RB4 — Digital I/O |
| Chân 17 | RB5 — Digital I/O |
| Chân 18 | RB6/PGC — Digital I/O / ICSP clock |
| Chân 19 | RB7/PGD — Digital I/O / ICSP data |
| Chân 20 | VSS — Ground reference |
| Chân 21 | VDD — Positive supply (4.2 V to 5.5 V) |
| Chân 22 | RC0 — Digital I/O |
| Chân 23 | RC1 — Digital I/O |
| Chân 24 | RC2/CCP1 — Digital I/O / Capture/Compare/PWM 1 |
| Chân 25 | RC3 — Digital I/O |
| Chân 26 | RC4 — Digital I/O |
| Chân 27 | RC5 — Digital I/O |
| Chân 28 | RC6/TX/CK — Digital I/O / USART TX / clock |
Ứng dụng tiêu biểu
PIC18F2620-E/SO phù hợp cho 6 Áp dụngs: Industrial Control Nodes, White-Goods Motor Control, Sensor Conditioning with On-Chip ADC, Battery-Backed Instrumentation, HVAC and Building Automation, Automotive Body Electronics (Non-Safety).
Industrial Control Nodes
The PIC18F2620-E/SO fits industrial control nodes because its 64 KB Enhanced Flash holds large ladder-logic firmware and its 25 I/O pins drive sensors, relays, and HMI interfaces at 5 V. The -40 C to +125 C operating range lets the same PCB survive factory-floor cabinets and outdoor enclosures without thermal derating. The Fail-Safe Clock Monitor allows safe shutdown if the external crystal fails, while the 10-bit ADC digitizes 4-20 mA loop signals directly. Pair with a PIC18F25K22-I/SO for new low-power variants.
Được đề xuất
White-Goods Motor Control
The PIC18F2620-E/SO's Enhanced Capture/Compare/PWM (ECCP) module generates precise PWM outputs for washing-machine, dishwasher, and refrigerator motor control at 5 V logic. The hardware 8x8 multiplier executes single-cycle PID math for closed-loop speed regulation, while 64 KB Flash accommodates the full motor-control state machine and lookup tables. The wide-temperature grade survives compressor-coastal heat soak. Use PIC18F2520-E/SO for cost-down designs with reduced firmware footprint.
Được đề xuất
Sensor Conditioning with On-Chip ADC
The PIC18F2620-E/SO's 10-bit ADC and 25 MHz core digitize thermocouple, strain-gauge, and pressure-sensor signals in real time. With 64 KB Flash, designers embed calibration tables and digital-filter routines (FIR/IIR) without external memory; the 3,968 bytes RAM buffers multi-channel sample streams. The internal oscillator eliminates an external crystal, reducing BOM cost for sealed sensor probes. Pair with PIC18F2585-I/SO when CAN bus reporting is required.
Được đề xuất
Battery-Backed Instrumentation
The PIC18F2620-E/SO's nanoWatt power-management modes reduce sleep current to microamp levels, extending runtime in battery-backed metering and remote-monitoring instruments. The internal 31 kHz-8 MHz oscillator lets the MCU wake on RTCC interrupts without external components, while 64 KB Flash stores months of logging data with circular buffers. The wide supply range (4.2-5.5 V) accepts direct battery connections with simple LDO regulation.
Được đề xuất
HVAC and Building Automation
The PIC18F2620-E/SO suits HVAC and building-automation controllers because its 25 I/O pins interface directly to relays, TRIAC drivers, and 0-10 V analog actuator outputs at 5 V. The ECCP module produces phase-angle or zero-cross TRIAC firing pulses for AC load dimming, while 64 KB Flash stores schedule logic and Modbus/RTU stacks. The industrial -E temperature grade tolerates rooftop and basement cabinet environments without active cooling.
Được đề xuất
Automotive Body Electronics (Non-Safety)
The PIC18F2620-E/SO fits automotive body-electronics modules (interior lighting, seat controllers, mirror adjusters) where the -40 C to +125 C range handles under-dash thermal stress and 64 KB Flash holds body-control firmware. The internal oscillator with PLL simplifies PCB layout versus external crystals, while 25 I/O drive low-side MOSFET switches directly. For safety-critical domains, migrate to PIC18F46K22 family; for CAN bus, choose PIC18F2580-I/SO.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F2620-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 | PIC18F2620-I/SO | PIC18F2520-E/SO | PIC18F25K22-I/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (wide-body) | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Program Memory | 64 KB Flash | 64 KB Flash | 32 KB Flash (-50%) | 32 KB Flash (-50%) |
| Maximum CPU Speed | 25 MHz (10 MIPS) | 25 MHz (10 MIPS) | 25 MHz (10 MIPS) | 64 MHz (16 MIPS) |
| RAM | 3,968 bytes | 3,968 bytes | 1,536 bytes | 1,536 bytes |
| Operating Temperature | -40 C to +125 C (-E extended) | -40 C to +85 C (industrial) | -40 C to +125 C (-E) | -40 C to +85 C (industrial) |
| Supply Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 1.8 V to 5.5 V (XLP) |
| Internal Oscillator | 31 kHz to 8 MHz | 31 kHz to 8 MHz | 31 kHz to 8 MHz | 31 kHz to 16 MHz (HF) |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit |
| nanoWatt XLP Power Modes | No (legacy nanoWatt) | No (legacy nanoWatt) | No (legacy nanoWatt) | Yes (XLP) |
Bảo phân biệt quan trọng
- Extended -40 C to +125 C temperature grade in same 28-SOIC package (vsPIC18F2620-I/SO)
- 64 KB Enhanced Flash vs 32 KB Flash for legacy firmware reuse (vsPIC18F2520-E/SO)
- Mature legacy silicon with wide 5 V supply tolerance (vsPIC18F25K22-I/SO)
Ghi chú thiết kế
Place a 0.1 uF decoupling capacitor within 5 mm of each VDD/VSS pair (pins 11/10 and 21/20) and add a single 10 uF bulk tantalum or ceramic capacitor on the same 5 V rail. Estimated: at 25 MHz and 5 V supply the PIC18F2620-E/SO typically draws ~15-20 mA active; bulk decoupling prevents supply droop during Flash program/erase. Keep analog VREF+ (RA3) and VREF- (RA2) traces short and bypass them with 0.1 uF capacitors if used in ADC mode.
Route the crystal traces (OSC1/RA7 pin 8 and OSC2/RA6 pin 9) as short, symmetric differential pairs with a ground guard ring; keep them away from switching signals and the ICSP lines (RB6/PGC pin 18, RB7/PGD pin 19). When using the internal oscillator, leave OSC1/OSC2 as GPIO (RA6/RA7) but still bypass them with 0.1 uF to VDD if unused. Provide a 10 kohm pull-up on MCLR/VPP (pin 1) to VDD to avoid spurious resets.
Do not exceed 5.5 V on any pin including MCLR; the part is 5 V-only and has no 3.3 V tolerance without level translation. Configuration bits (CONFIG1H/2L/3H/4L registers) must be programmed before Flash programming or the part may not boot - refer to the datasheet Section 25 (CPU Features) for defaults. The BOR (brown-out reset) and PWRT (power-up timer) should remain enabled for industrial deployments. Watchdog Timer postscaler must be cleared in firmware or unexpected resets will occur.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; lead-free and halogen-free. Not AEC-Q100 qualified - PIC18F2620-E/SO is general industrial grade; for AEC-Q100 qualified parts use PIC18F46K22 family.
