PIC16LC620T-04E/SO - 8-Bit 4MHz OTP MCU 18-SOIC | Microchip
MPN: PIC16LC620T-04E/SO ✓ Hoạt độngPIC16LC620T-04E/SO Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, and peripherals such as timers, A/D converters, and communication interfaces. In the broader system hierarchy, the PIC16LC620 belongs to the PIC16C family of RISC microcontrollers, which sits under the 8-bit MCU category, which itself is a subset of embedded microcontrollers and, ultimately, microprocessors and semiconductors. Low-power (LC) variants are optimized for battery-powered applications through reduced core voltage operation.
Key features of the PIC16LC620T-04E/SO include a RISC instruction set with 35 single-word instructions, a two-level deep hardware stack, 12-bit-wide instructions and an 8-bit-wide data path, plus seven or eight special-function hardware registers. Brown-out Detect/Reset and Power-on Reset peripherals are integrated, and the device supports direct, indirect, and relative addressing modes for efficient C and assembly development.
The architecture employs a Harvard-style memory layout with separate program and data buses, allowing instruction fetch and data access to occur in the same cycle. This delivers deterministic 4 MHz throughput with single-cycle instruction execution, which is critical for real-time control loops. On-chip peripherals such as timers, a comparator, and an internal oscillator reduce external component count.
Typical applications include automotive body controllers, sensor conditioning front-ends, low-power remote keyless entry transmitters, industrial control modules, and small appliance control boards. The wide supply range (2.5 V to 6.25 V) allows direct connection to 3.3 V or 5 V rails.
When designing with this part, note that OTP memory is one-time programmable and cannot be re-flashed - choose PIC16F variants for in-circuit reprogrammability. Place a 0.1 uF decoupling capacitor adjacent to VDD and keep oscillator traces short.
This page synthesizes distributor stock data, drop-in OTP/EPROM alternatives, and practical design notes not consolidated on any single distributor listing.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC620T-04E/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 PIC16LC620T-04E/SO (cùng hình factor và footprint) — khác nhau ở Package, Program Memory Size, Program Memory Type, Instruction Cycle, Operating Temperature Range.
PIC16LC620AT-04E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC620A-04E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC620-04E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC620AT-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC558-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C558T-04/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC620T-04E/SO Tỷ lệ tối đa & tính chất điện
| Core Processor | PIC |
| Core Size | 8-Bit |
| CPU Speed | 4 MHz |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 896 B (512 x 14) |
| I/O Pins | 12 |
| Supply Voltage Range | 2.5 V to 6.25 V |
| Hộp | 18-SOIC (0.295", 7.50 mm width) |
| Kiểu lắp đặt | Surface Mount |
| Instruction Width | 12-bit |
| Data Path Width | 8-bit |
| Hardware Stack | 2-level deep |
| Addressing Modes | Direct, Indirect, Relative |
| Special Function Registers | 7 or 8 |
| Lifecycle Stage | Active |
| Integrated Peripherals | Brown-out Detect/Reset, POR |
Cấu hình chân PIC16LC620T-04E/SO
| Chân 1 | MCLR — Master Clear (Reset) input, active low |
| Chân 2 | RA0 — Bidirectional digital I/O pin |
| Chân 3 | RA1 — Bidirectional digital I/O pin |
| Chân 4 | RA2 — Bidirectional digital I/O pin |
| Chân 5 | RA3 — Bidirectional digital I/O pin |
| Chân 6 | RA4 — Bidirectional digital I/O / timer output |
| Chân 7 | RA5 — Bidirectional digital I/O pin |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1 — Oscillator input / external clock input |
| Chân 10 | OSC2 — Oscillator output |
| Chân 11 | RC0 — Bidirectional digital I/O pin |
| Chân 12 | RC1 — Bidirectional digital I/O pin |
| Chân 13 | RC2 — Bidirectional digital I/O pin |
| Chân 14 | RC3 — Bidirectional digital I/O pin |
| Chân 15 | RC4 — Bidirectional digital I/O pin |
| Chân 16 | RC5 — Bidirectional digital I/O pin |
| Chân 17 | RC6 — Bidirectional digital I/O pin |
| Chân 18 | RC7 — Bidirectional digital I/O pin |
Ứng dụng tiêu biểu
PIC16LC620T-04E/SO phù hợp cho 6 Áp dụngs: Automotive Body Control Modules, Remote Keyless Entry (RKE) Transmitters, Industrial Sensor Signal Conditioning, Small Appliance Control Boards, Battery-Powered Wireless Sensor Nodes, LED Lighting Controllers.
Automotive Body Control Modules
The PIC16LC620T-04E/SO's automotive temperature rating and 2.5-6.25 V supply range suit 12 V automotive body controllers after regulation. With 12 I/O pins and integrated brown-out reset, it can directly drive small loads such as courtesy lamps, mirror actuators, and seat controls via external MOSFETs. The 4 MHz MIPS throughput handles PWM dimming and switch debounce in real time. Compared with flash MCUs, the OTP memory prevents unauthorized firmware reads, which is a security advantage for OEM automotive subsystems.
Được đề xuất
Remote Keyless Entry (RKE) Transmitters
The PIC16LC620T-04E/SO's low-power CMOS design fits battery-powered RKE keyfobs where standby current dominates battery life. The 12 I/O pins can drive four matrix-scan button inputs and an RF transmitter enable line, while internal brown-out reset prevents corrupted transmission when battery voltage sags. The 4 MHz instruction rate is sufficient for rolling-code encryption and button debounce in < 10 ms response time. EPROM OTP also gives OEMs a security advantage over flash, since firmware cannot be read back.
Được đề xuất
Industrial Sensor Signal Conditioning
Industrial sensor front-ends benefit from the PIC16LC620T-04E/SO's 2.5-6.25 V supply range and 4 MHz throughput for linearizing thermocouple or RTD signals before ADC. With 12 I/O pins, the MCU can multiplex several sensors, drive an LCD, and handle a UART link to a host controller. The integrated brown-out detect prevents erratic ADC readings during brown-out events, and the wide supply tolerance simplifies 24 V industrial bus designs after a simple linear regulator.
Được đề xuất
Small Appliance Control Boards
In coffee makers, microwave ovens, and washing machines, the PIC16LC620T-04E/SO's 12 I/O pins can scan keypads, drive seven-segment displays, and control TRIAC/relay outputs for heater or motor elements. The 4 MHz throughput handles simple state machines and timer functions; the wide 2.5-6.25 V supply supports direct 5 V regulated rails. OTP memory reduces per-unit cost versus flash MCUs, which is important in cost-sensitive consumer appliances.
Được đề xuất
Battery-Powered Wireless Sensor Nodes
The PIC16LC620T-04E/SO's low-power CMOS core and 2.5 V minimum supply extend battery life in remote wireless sensor nodes. With 12 I/O pins, the MCU can wake a sub-GHz radio module, read a sensor, and return to sleep, all within tight power budgets. The 4 MHz throughput is adequate for sensor linearization and packet formatting, while the brown-out detector protects against brown-outs as the battery discharges. EPROM OTP also protects proprietary sensor-calibration firmware from reverse engineering.
Được đề xuất
LED Lighting Controllers
The PIC16LC620T-04E/SO can serve as a low-cost LED controller for decorative or architectural lighting. Its 4 MHz instruction rate supports PWM generation at frequencies above 100 Hz, avoiding visible flicker, while 12 I/O pins can drive multiple LED channels via external MOSFET drivers. The 2.5-6.25 V supply range supports direct connection to 3.3 V or 5 V LED driver rails, and the small 18-SOIC footprint enables compact PCB designs for inline LED controllers and strip-light dimmers.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC620T-04E/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 | PIC16LC620AT-04E/SO | PIC16LC620A-04E/SO | PIC16LC620-04E/SO | PIC16LC620AT-04I/SO | PIC16LC558-04I/SO | PIC16C558T-04/SO |
|---|---|---|---|---|---|---|---|
| Package | 18-SOIC | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| CPU Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory | 896 B (512 x 14) OTP | 896 B OTP | 896 B OTP | 896 B OTP | 896 B OTP | 768 B OTP (-14%) | 768 B EPROM (-14%) |
| Supply Voltage | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 3.0 V to 5.5 V |
| I/O Pins | 12 | 13 | 13 | 12 | 13 | 13 | 13 |
| Memory Type | OTP | OTP | OTP | OTP | OTP | OTP | EPROM |
Bảo phân biệt quan trọng
- Wider supply voltage range than PIC16C558 variants (vsPIC16C558T-04/SO)
- Larger program memory than PIC16LC558 family (vsPIC16LC558-04I/SO)
- Automotive temperature grade for harsh environments (vsPIC16LC620A-04E/SO)
Ghi chú thiết kế
Place a 0.1 uF ceramic decoupling capacitor as close as possible to the VDD pin (pin 14 area) to suppress switching transients. Add a bulk capacitor of 1-10 uF at the supply rail entry point. The PIC16LC620T-04E/SO draws low quiescent current thanks to its CMOS design, but I/O switching transients still require local bypass. For battery applications, gate peripheral power through a MOSFET controlled by an I/O pin to reach nanoampere standby currents.
Keep oscillator traces (OSC1/OSC2) short and route them over a continuous ground plane to minimize EMI and improve clock stability. If using a crystal oscillator, place load capacitors within 5 mm of the OSC pins and keep them on the same PCB layer. Avoid routing high-current signals parallel to the clock traces, as capacitive coupling can inject jitter into the system clock.
OTP memory cannot be erased or rewritten - verify firmware thoroughly with a PIC16F equivalent flash part during development, then commit the final image to PIC16LC620T-04E/SO for production. MCLR must be pulled high through a 10 kohm resistor; leaving MCLR floating causes erratic resets. Ensure the supply rises monotonically during power-up; the brown-out reset peripheral will hold the device in reset if VDD sags below the brown-out threshold.
Thông tin tuân thủ
RoHS status, REACH status, and halogen-free status not explicitly stated in the provided data; lead-free per Microchip packaging standards for SOIC variants. AEC-Q100 not applicable for the standard 18-SOIC part - check Microchip documentation for automotive-qualified variants.