PIC16LC622-04I/SO - 8-bit OTP MCU, 4MHz, 18-SOIC | Microchip
MPN: PIC16LC622-04I/SO ✓ Hoạt độngPIC16LC622-04I/SO Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that contains a CPU, RAM, non-volatile program memory (ROM/EPROM/Flash), and I/O peripherals on one die. The PIC16C family represents Microchip's classic mid-range architecture, with the PIC16LC622 positioned between the smaller PIC16C55x/56x and the larger PIC16C6x/7x devices, offering a balance of OTP memory size and I/O capability. The 'L' prefix indicates a low-voltage (2.5V-6.25V) CMOS part suitable for battery-powered and 3.3V/5V mixed systems.
Key features of the PIC16LC622-04I/SO include 35 single-cycle instructions (only program branches are two-cycle), a 12-bit-wide instruction word with an 8-bit-wide data path, seven or eight special-function hardware registers, a two-level deep hardware stack, and direct, indirect, and relative addressing modes. The 4 MHz clock input and 200 ns instruction cycle enable deterministic control loop execution. The 'I' suffix denotes the industrial temperature grade (-40C to +85C), and the /SO suffix denotes the surface-mount 18-pin SOIC package.
The internal architecture combines a Harvard-style separate program and data buses, a precision 4 MHz internal oscillator option (depending on configuration), and built-in peripherals such as timers and a watchdog timer. Compared with later PIC16F Flash parts, the PIC16LC622 uses one-time-programmable (OTP) EPROM, which is appropriate for low-volume production or mature production runs where code stability outweighs in-field reprogrammability.
Typical applications include industrial control logic, low-cost consumer appliance controllers, sensor signal pre-processing, simple motor-control sequencers, and legacy system retrofits that require pin-compatibility with earlier PIC16C sockets. The 2.5V-6.25V supply range supports operation directly from a 3.3V regulated rail or from a 5V USB/BUS supply.
When designing with this device, ensure the OTP program memory is programmed before final PCB assembly in production, since OTP parts cannot be re-programmed in-circuit. For new designs where in-field firmware updates may be required, prefer a Flash-based PIC16F equivalent such as the PIC16F648A or PIC16F88, which use the same mid-range instruction set and offer similar peripheral sets with re-programmability.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC622-04I/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 PIC16LC622-04I/SO (cùng hình factor và footprint) — khác nhau ở Program Memory Size, Program Memory Type, Operating Temperature Range, Package, Mounting Type.
PIC16C622A-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC622-04I/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LC622-04/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC622-04E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC622-04I/SO Tỷ lệ tối đa & tính chất điện
| Core Processor | PIC |
| Core Size | 8-bit |
| Program Memory Type | OTP (EPROM) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 bytes |
| EEPROM Size | None |
| Maximum Clock Speed | 4 MHz |
| Instruction Cycle | 200 ns |
| Number of I/O Pins | 13 |
| Supply Voltage Range | 2.5 V to 6.25 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial grade 'I') |
| Package Type | 18-pin SOIC (SO-18, 0.300 inch plastic body) |
| Kiểu lắp đặt | Surface Mount |
| Number of Instructions | 35 (single-cycle, except branches) |
| Stack Depth | 2 levels (hardware) |
| Address Modes | Direct, Indirect, Relative |
| Instruction Width | 12-bit |
| Data Path Width | 8-bit |
Cấu hình chân PIC16LC622-04I/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 / Timer 0 clock input |
| Chân 4 | MCLR/VPP — Master Clear (active low reset) / Programming voltage |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0/INT — Bidirectional I/O, Port B bit 0 / External interrupt input |
| 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 (interrupt-on-change) |
| Chân 11 | RB5 — Bidirectional I/O, Port B bit 5 (interrupt-on-change) |
| Chân 12 | RB6 — Bidirectional I/O, Port B bit 6 (interrupt-on-change / ICSP clock) |
| Chân 13 | RB7 — Bidirectional I/O, Port B bit 7 (interrupt-on-change / ICSP data) |
| Chân 14 | VDD — Positive supply voltage (2.5V to 6.25V) |
| Chân 15 | OSC2/CLKOUT — Oscillator output / Clock output |
| 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
PIC16LC622-04I/SO phù hợp cho 6 Áp dụngs: Industrial Control Logic, Consumer Appliance Controllers, Sensor Signal Pre-Processing, Legacy System Retrofits, Simple Motor Control Sequencing, Battery-Powered Remote Controls.
Industrial Control Logic
The PIC16LC622-04I/SO is well suited to industrial control logic where a deterministic 8-bit core and the 2.5V-6.25V supply range suffice. With 4 MHz operation delivering a 200 ns instruction cycle, the part executes real-time control loops with predictable timing. The 13 I/O pins drive relays, optocouplers, and LED indicators directly, while the 3.5KB OTP memory holds modest state machines (a few hundred instructions for sequencing plus tables). Industrial temperature grading (-40C to +85C) covers factory-floor environments. Design note: use the brown-out reset and watchdog timer to recover from supply transients typical of motor loads.
Được đề xuất
Consumer Appliance Controllers
The PIC16LC622-04I/SO fits low-cost consumer appliance controllers such as coffee makers, washing-machine user interfaces, and small kitchen appliances. Its 35-instruction RISC core lets engineers write compact control firmware in 1-2KB of the available 3.5KB OTP memory, leaving room for lookup tables and EEPROM-emulation in unused program memory. The 2.5V-6.25V supply range accepts a 3.3V regulated rail or a 5V USB-derived supply. Surface-mount 18-SOIC supports automated PCB assembly for high-volume production. For consumer SKUs with frequent firmware changes, evaluate the Flash-based PIC16F88 family for in-system updates.
Được đề xuất
Sensor Signal Pre-Processing
The PIC16LC622-04I/SO performs front-end sensor signal pre-processing in instruments that feed processed data to a higher-level processor. The 4 MHz CPU executes simple FIR/IIR filters, linearization routines, and unit conversions at sub-millisecond rates, offloading the main CPU. The 13 I/O pins accept digital sensor inputs (Hall-effect, limit switches, quadrature encoders) and drive status LEDs. The industrial temperature range supports outdoor instrumentation. Design note: pair with Microchip MCP3x0x ADC for analog sensor acquisition upstream.
Được đề xuất
Legacy System Retrofits
The PIC16LC622-04I/SO supports legacy system retrofits where original PIC16C622 sockets must be re-populated with new production parts after end-of-life of older inventory. Because the PIC16LC622 shares the PIC16C mid-range instruction set and the 18-SOIC footprint, existing PCB layouts and firmware remain valid. OTP memory ensures that the part behaves deterministically once programmed, matching the reliability expectations of industrial retrofit markets. The active life-cycle status confirms ongoing Microchip production, which is critical for long-life industrial and medical equipment requiring 10+ year component availability guarantees.
Được đề xuất
Simple Motor Control Sequencing
The PIC16LC622-04I/SO handles simple motor-control sequencing in low-power BLDC or stepper drivers where a dedicated motor-control IC is overkill. The 13 I/O pins drive half-bridge gate signals, monitor back-EMF, and read end-of-travel switches. The 200 ns instruction cycle supports commutation loops running at a few kHz, which is fast enough for small fans, pumps, and peristaltic pumps. The 2.5V-6.25V supply range covers both 3.3V logic-level and 5V driver configurations. Critical: never drive motor power directly from the MCU - use gate drivers such as MCP14x series to handle the inductive switching currents.
Được đề xuất
Battery-Powered Remote Controls
The PIC16LC622-04I/SO is suitable for battery-powered remote controls that need a low-voltage CMOS core and a deterministic real-time response. The PIC16LC (low-voltage CMOS) variant operates from 2.5V-6.25V, allowing direct connection to two AA alkaline cells (3.0V nominal) or a single Li-ion cell (3.7V nominal). The 4 MHz clock and 200 ns cycle support IR protocol bit-banging and button-debouncing in 3.5KB of OTP memory. With the watchdog timer enabled and the CPU spending most of its time in sleep, average current draw drops well below 1 mA for multi-year battery life.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC622-04I/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 | PIC16C622A-04I/SO | PIC16LC622-04/SO | PIC16LC622-04E/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Core Size | 8-bit | 8-bit | 8-bit | 8-bit |
| Maximum Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| I/O Pins | 13 | 13 | 13 | 13 |
| Supply Voltage | 2.5V to 6.25V | 2.5V to 6.25V | 2.5V to 6.25V | 2.5V to 6.25V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | -40 C to +125 C (Extended) |
Bảo phân biệt quan trọng
- Industrial temperature grade on the original silicon (vsPIC16LC622-04/SO)
- Improved silicon revision with the A-suffix (vsPIC16C622A-04I/SO)
Ghi chú thiết kế
Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin, plus a bulk 10 uF tantalum or aluminum polymer cap on the supply rail. The PIC16LC622 draws a few mA at 4 MHz and 5V; noise on VDD can cause code-fetch errors or watchdog resets. Avoid routing switching converter grounds near the MCU ground pin - star-ground the MCU to a quiet ground point.
Do not assume this OTP part can be re-programmed in-circuit. PIC16LC622 requires external programming in a dedicated device programmer; once programmed, the memory is immutable. For prototypes or low-volume production, consider the Flash-based PIC16F88 or PIC16F648A family that uses the same mid-range instruction set with ICSP. Also: the MCLR/VPP pin must be pulled high through a 10 kohm resistor for normal operation, and low for hardware reset.
Choose the oscillator mode configuration bits before programming. The PIC16LC622 supports four oscillator modes: RC (low-cost, low-accuracy), XT (low-frequency crystal, up to 4 MHz), HS (high-speed crystal, used for external clocks above 4 MHz - although this part is limited to 4 MHz), and LP (low-power crystal for 32.768 kHz). For timing-critical applications, the XT mode with a parallel-resonant 4 MHz crystal and 22 pF load caps gives best frequency stability.
Thông tin tuân thủ
RoHS and REACH status marked [DATA_NEEDED: confirm from Microchip product declaration document]. PIC16LC622 is NOT AEC-Q100 qualified - not suitable for automotive under-hood applications.
