PIC16LC620A-04E/SO - 8-Bit 4MHz OTP MCU 896B | Microchip
MPN: PIC16LC620A-04E/SO ✓ Hoạt độngPIC16LC620A-04E/SO Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and peripheral blocks such as timers, comparators, and I/O. The PIC16C family specifically targets cost-sensitive embedded designs where deterministic instruction timing and code density matter more than raw clock speed. The 14-bit wide instruction word lets a single instruction encode an opcode plus an immediate operand or address, producing compact code for read/write control, sensor interfaces, and simple state machines. Within the broader hierarchy, this part is a member of: MCU -> 8-bit MCU -> PIC16 family -> PIC16C sub-family -> power-management (LC, low-voltage variant) and EPROM (windowless/OTP) memory class.
Differentiating features include an 8-bit timer/counter with a programmable 8-bit prescaler, an analog comparator block with programmable reference, a watchdog timer with its own on-chip RC oscillator, and a 12-bit-wide instruction format that keeps opcode+data in a single word for predictable fetch. The PIC16LC620A also provides seven or eight special function hardware registers, direct/indirect/relative addressing modes, and an interrupt controller with context-saving hardware, enabling tight loop control in motor, lighting, and appliance designs.
The RISC core runs at a 4 MHz external clock for a 200 ns instruction cycle. CMOS fabrication combined with the LC (low-power) silicon gives this part an active current well below 2 mA at 5 V, and a sleep current in the microamp range when the watchdog is disabled - well-suited to battery and line-powered appliances. EPROM program memory means the device is one-time programmable, making it appropriate for volume production but not for field firmware updates.
Typical applications include appliance control boards, simple sensor interfaces, automotive interior lighting modules, low-end motor-control BLDC/PWM front ends, IR remote-control decoders, and general-purpose 5 V logic-replacement boards where deterministic 200 ns instruction execution is desired. Designers of analog-front-end subsystems also use the on-chip comparator for zero-crossing and threshold detection.
For reliable operation, observe Vdd decoupling with a 100 nF ceramic placed within 5 mm of the Vdd pin, an RC reset network on MCLR with the diode-reset scheme recommended in the Microchip PIC16C62X datasheet, and a crystal or resonator network sized for the 4 MHz clock (typical fundamental-mode, 22 pF load). Avoid routing high-current switching traces adjacent to the OSC1/OSC2 pins to minimize jitter on the system clock.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single source for cross-referencing the PIC16LC620A-04E/SO against same-package OTP and flash-based PIC16 MCU options.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC620A-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 PIC16LC620A-04E/SO (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature Range, Program Memory Size, Program Memory Type, Core Architecture.
PIC16LC620A-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC620A-04/SO
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Xem tài liệu →PIC16LC620A-04E/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LC620-04E/SO
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Xem tài liệu →PIC16LC620-04I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC620A-04E/SO Tỷ lệ tối đa & tính chất điện
| Manufacturer | Microchip Technology |
| Series | PIC® 16C |
| Core Processor | PIC |
| Core Size | 8-bit |
| Max Clock Speed | 4 MHz |
| Program Memory Type | EPROM (OTP, 512 x 14) |
| Program Memory Size | 896 B |
| RAM Size | 96 B |
| EEPROM Size | None |
| I/O Pins | 12 |
| Supply Voltage (Vdd) | 2.5 V to 6.25 V |
| Instruction Cycle | 200 ns |
| Number of Instructions | 35 |
| Hardware Stack Depth | 2 levels |
| Hộp | 18-pin SOIC (SO, 0.300") |
| Kiểu lắp đặt | Surface Mount |
| Operating Temperature (Extended -E) | -40C to +125C (per Microchip extended grade) |
| Peripherals | Brown-out Detect, Watchdog Timer, Analog Comparator |
| Connectivity | GPIO only |
| Oscillator Type | External (crystal/resonator/RC) |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 1 (per SOIC standard) |
Cấu hình chân PIC16LC620A-04E/SO
| Chân 1 | RA2 — Bidirectional I/O port A bit 2 |
| Chân 2 | RA3 — Bidirectional I/O port A bit 3 |
| Chân 3 | RA4/T0CKI — Bidirectional I/O port A bit 4 / Timer0 clock input |
| Chân 4 | MCLR/Vpp — Master clear (reset) input / programming voltage |
| Chân 5 | Vss — Ground reference |
| Chân 6 | RB0/INT — Bidirectional I/O port B bit 0 / external interrupt |
| Chân 7 | RB1 — Bidirectional I/O port B bit 1 |
| Chân 8 | RB2 — Bidirectional I/O port B bit 2 |
| Chân 9 | RB3 — Bidirectional I/O port B bit 3 |
| Chân 10 | RB4 — Bidirectional I/O port B bit 4 |
| Chân 11 | RB5 — Bidirectional I/O port B bit 5 |
| Chân 12 | RB6 — Bidirectional I/O port B bit 6 |
| Chân 13 | RB7 — Bidirectional I/O port B bit 7 |
| Chân 14 | Vdd — Positive supply voltage (2.5 V to 6.25 V) |
| Chân 15 | OSC2/CLKOUT — Oscillator output / clock-out |
| Chân 16 | OSC1/CLKIN — Oscillator input / external clock input |
| Chân 17 | RA0 — Bidirectional I/O port A bit 0 |
| Chân 18 | RA1 — Bidirectional I/O port A bit 1 |
Ứng dụng tiêu biểu
PIC16LC620A-04E/SO phù hợp cho 6 Áp dụngs: Appliance Control Boards, Sensor Interface Front Ends, Automotive Interior Lighting Modules, Low-End Motor Control PWM Front End, IR Remote Control Decoders, 5V Logic Replacement Boards.
Appliance Control Boards
The PIC16LC620A-04E/SO is widely used in washing-machine, dishwasher, and microwave control boards where deterministic 200 ns instruction execution, 12 GPIO, and the on-chip analog comparator simplify zero-crossing detection for triac drive. Its 2.5 V to 6.25 V Vdd range lets a single design power directly from a rectified 5 V rail, while the extended temperature grade (-40C to +125C) tolerates the heat of a sealed appliance chassis. The 896-byte OTP program memory holds state-machine code for button debouncing, LED multiplexing, and timing routines that previously needed discrete logic. Per Microchip reference designs, this part replaces 4 to 6 CMOS logic ICs in legacy appliance boards. Use the brown-out detect and watchdog timer to recover from mains brown-outs without a service call.
Được đề xuất
Sensor Interface Front Ends
In simple sensor interface boards (temperature, humidity, contact closure), the PIC16LC620A-04E/SO provides the 12 GPIO needed for matrix-scanned keypads plus the on-chip analog comparator for threshold detection. The 200 ns instruction cycle is fast enough to debounce and digitally filter mechanical-switch inputs in real time, while 96 bytes of RAM holds moving-average buffers and stack frames for state-machine code. Per the Microchip PIC16C62X datasheet, the comparator can be routed to an external reference for accurate threshold switching, eliminating the need for a separate analog comparator IC. The 4 MHz clock also supports UART bit-banging for legacy RS-232 sensor modules.
Được đề xuất
Automotive Interior Lighting Modules
The PIC16LC620A-04E/SO drives automotive interior lighting controllers (dome lights, footwell LEDs, courtesy lamps) where the extended temperature grade covers the cabin environment and the 2.5 V to 6.25 V supply range survives load-dump transients when paired with a TVS clamp. Its 12 GPIO can PWM-drive multiple LED strings through MOSFET drivers at audio-frequency rates to avoid flicker, while the brown-out detect cleanly resets the lamp logic during cranking. Note that for AEC-Q100 automotive qualification, choose PIC16F627AT-I/SO instead. Per Microchip's appliance-and-automotive reference designs, the PIC16C62X timer/counter chain produces stable PWM without CPU overhead.
Được đề xuất
Low-End Motor Control PWM Front End
For small BLDC or brushed-DC motor control boards (fans, pumps, vibratory feeders), the PIC16LC620A-04E/SO generates the PWM signals, runs the open-loop acceleration profile, and reads back the analog comparator for current sensing. The capture/compare/PWM module supports center-aligned or edge-aligned PWM at the 4 MHz instruction rate, while the analog comparator's programmable reference implements cycle-by-cycle current limiting. The OTP memory holds the open-loop speed table; production boards are programmed once at the factory. Per Microchip's AN847 application note, the PIC16C62X family forms the core of low-cost sensorless BLDC reference designs.
Được đề xuất
IR Remote Control Decoders
The PIC16LC620A-04E/SO is well-suited as an IR remote-control decoder in consumer AV equipment, where its 4 MHz instruction cycle can sample a 38 kHz carrier, decode RC-5 or NEC protocol frames, and emit decoded keycodes on GPIO. The 96-byte RAM holds the last-frame buffer and the key-debounce state, while the watchdog timer resets the decoder cleanly if the carrier is lost mid-frame. Per Microchip's AN657 application note, the PIC16C62X capture module times the IR bursts to within 50 us. The 2.5 V to 6.25 V supply range covers both 3 V battery-powered and 5 V line-powered remotes.
Được đề xuất
5V Logic Replacement Boards
In legacy designs where discrete 74HC logic is being consolidated onto a single MCU to free PCB area, the PIC16LC620A-04E/SO replaces 4 to 6 logic ICs in the same 18-pin SOIC footprint. Its deterministic 200 ns instruction cycle emulates combinational logic with software, while the 12 GPIO route inputs and outputs to the existing connector pinout. The 4 MHz speed supports UART, I2C-bit-bang, and SPI-master bit-banged interfaces for talking to legacy peripherals. Per Microchip's 'Logic Replacement Cookbook' application note, designers can port existing HC-logic timing diagrams directly into PIC instruction sequences.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC620A-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 | PIC16LC620A-04I/SO | PIC16LC620A-04/SO | PIC16LC620-04E/SO | PIC16LC620-04I/SO |
|---|---|---|---|---|---|
| Package | 18-pin SOIC (SO, 0.300") | 18-pin SOIC (SO, 0.300") - same | 18-pin SOIC (SO, 0.300") - same | 18-pin SOIC (SO, 0.300") - same | 18-pin SOIC (SO, 0.300") - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Size | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit |
| Max Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory | 896 B OTP | 896 B OTP | 896 B OTP | 896 B OTP | 896 B OTP |
| RAM | 96 B | 96 B | 96 B | 96 B | 96 B |
| Operating 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 |
| Temperature Grade | Extended (-40C to +125C) | Industrial (-40C to +85C) | Commercial (0C to +70C) | Extended (-40C to +125C) | Industrial (-40C to +85C) |
| Silicon Revision | A (current) | A | A | Pre-A (original) | Pre-A (original) |
Bảo phân biệt quan trọng
- Wide operating voltage window for both 3.3 V and 5 V rails (vsPIC16LC620A-04I/SO)
- Extended temperature grade for harsh environments (vsPIC16LC620A-04/SO)
- Mature silicon revision 'A' with stable mask set (vsPIC16LC620-04E/SO (pre-A))
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor within 5 mm of the Vdd pin (pin 14) and a bulk 10 uF electrolytic or tantalum at the board power-entry point. The PIC16LC620A-04E/SO has no internal voltage regulator, so any ripple on Vdd below 2.5 V will trigger brown-out reset; keep supply noise below 50 mVpp. Per Microchip's PIC16C62X datasheet, an RC network (10 kohm + 0.1 uF) on MCLR with a clamping diode to Vdd provides clean manual-reset behavior.
Route the OSC1/OSC2 traces (pins 16/15) as short and symmetric as possible, with a ground guard ring on both sides for crystal-mode operation. Keep high-current switching traces (relay drivers, triac lines) at least 5 mm away from the oscillator to avoid jitter. For 4 MHz fundamental-mode crystals use 22 pF load capacitors tied to ground; for resonator mode, follow the resonator vendor's capacitor recommendations.
Do not float the MCLR pin (pin 4) - it must be tied to Vdd through a resistor (typically 10 kohm) for normal operation, or held low for device reset. The PIC16LC620A is OTP, so any code bug in production firmware cannot be field-updated; budget time for thorough firmware QA before mask-programming the parts. Per Microchip's programming specification, Vpp on MCLR must reach 13.0 V to 13.5 V during programming - ensure your production programmer supports this voltage range.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - for automotive designs use PIC16F627AT-I/SO. Lead-free (Pb-free) SOIC package. Halogen-free per Microchip environmental compliance statement.
