PIC16LC620A-04I/SO - 8-Bit MCU, 4MHz, 896B OTP, 18-SOIC | Microchip
料号： PIC16LC620A-04I/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.95 | $495.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $3.96 | $3,960.00 |
PIC16LC620A-04I/SO 概述
An 8-bit MCU (microcontroller) is a single-chip computer that integrates a CPU, memory, and peripherals on one die. PIC16C-family microcontrollers are RISC-based, executing one instruction per cycle (except branches) and leveraging a Harvard architecture with separate program and data buses. Within the broader semiconductor taxonomy, an 8-bit MCU sits as a subset of microcontrollers, which in turn belong to the embedded processors category and ultimately integrated circuits (ICs).
Key features of the PIC16LC620A-04I/SO include 35 single-word instructions, a two-level deep hardware stack, direct/indirect/relative addressing modes, a precision internal oscillator option, and a programmable watchdog timer. The 'LC' prefix denotes a low-voltage CMOS variant optimized for battery-powered operation, while the 'I' suffix indicates an industrial temperature range of -40C to +85C.
Architecturally, the PIC16LC620A-04I/SO uses a 14-bit program word width with an 8-bit data path, enabling compact instruction encoding while preserving C-code efficiency. The OTP memory is factory- or field-programmable using Microchip's MPLAB development tools. On-chip peripherals include an 8-bit Timer0 with programmable prescaler, a watchdog timer with on-chip RC oscillator, and a brown-out reset (BOR) circuit.
Typical applications include consumer appliance controls, automotive body electronics, industrial sensor interfaces, low-power remote-control transmitters, and battery-powered instrumentation. The wide voltage range allows direct operation from 3.3V or 5V rails, simplifying integration into mixed-voltage systems.
When designing with this part, note that OTP memory cannot be reprogrammed in-circuit - choose flash-based PIC16F variants if iterative development is required. The 18-SOIC footprint is pin-compatible across the PIC16C620/621/622 family, enabling PCB reuse when migrating between memory densities.
This page consolidates Microchip datasheet specifications, current distributor pricing, drop-in same-package alternatives (PIC16LC620A-04/SO, PIC16LC620A-04E/SO), and engineering design notes not found in the manufacturer datasheet alone.
直接替换替代料： PIC16LC620A-04I/SO ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16LC620A-04I/SO （相同外形与封装尺寸） ——差异在于 Operating Temperature Range, Package, Program Memory Size, Program Memory Type, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC16LC620A-04/SO
✅ 直接替换✓ 有现货
$2.15 / 个
查看数据手册 →PIC16LC620A-04E/SO
✅ 直接替换✓ 有现货
$2.07 / 个
查看数据手册 →PIC16LC620-04I/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LC620-04E/SO
✅ 直接替换✓ 有现货
$1.78 / 个
查看数据手册 →PIC16LC620A-04I/SO 最大额定值与电气特性
| Core Architecture | 8-bit PIC RISC |
| Program Memory Size | 896 B (512 x 14) OTP |
| Data RAM | 96 B |
| 最大时钟频率 | 4 MHz |
| Instruction Cycle Time | 200 ns |
| Number of I/O Pins | 13 |
| Number of Timers | 1 x 8-bit |
| Supply Voltage Range | 2.5 V to 6.0 V |
| 工作温度范围 | -40C to +85C (Industrial) |
| 封装 | 18-SOIC (0.300 inch body) |
| 安装类型 | Surface Mount |
| Program Memory Type | EPROM (OTP) |
| Hardware Stack Depth | 2 levels |
| Instruction Set Size | 35 instructions |
PIC16LC620A-04I/SO 引脚配置
| 引脚 1 | MCLR/Vpp — Master clear reset input / programming voltage |
| 引脚 2 | RA0/AN0 — Bidirectional I/O / analog input channel 0 |
| 引脚 3 | RA1/AN1 — Bidirectional I/O / analog input channel 1 |
| 引脚 4 | RA2/AN2 — Bidirectional I/O / analog input channel 2 |
| 引脚 5 | RA3/AN3 — Bidirectional I/O / analog input channel 3 |
| 引脚 6 | RA4/T0CKI — Bidirectional I/O (open-drain) / Timer0 clock input |
| 引脚 7 | RA5 — Bidirectional I/O |
| 引脚 8 | RA6 — Bidirectional I/O |
| 引脚 9 | RA7 — Bidirectional I/O |
| 引脚 10 | Vss — Ground reference |
| 引脚 11 | Vdd — Positive supply voltage (2.5 V to 6.0 V) |
| 引脚 12 | RB0/INT — Bidirectional I/O / external interrupt input |
| 引脚 13 | RB1 — Bidirectional I/O |
| 引脚 14 | RB2 — Bidirectional I/O |
| 引脚 15 | RB3 — Bidirectional I/O |
| 引脚 16 | RB4 — Bidirectional I/O (interrupt-on-change) |
| 引脚 17 | RB5 — Bidirectional I/O (interrupt-on-change) |
| 引脚 18 | RB6 — Bidirectional I/O (interrupt-on-change) / serial programming clock |
典型应用
PIC16LC620A-04I/SO 适用于 6 应用s: Consumer Appliance Control Panels, Automotive Body Electronics, Industrial Sensor Interface Boards, Battery-Powered Remote Control Transmitters, LED Display and Indicator Drivers, Low-Cost Educational and Hobbyist Platforms.
Consumer Appliance Control Panels
The PIC16LC620A-04I/SO is well-suited for low-cost consumer appliance controls such as washing-machine user interfaces, microwave oven keypads, and HVAC thermostat displays where 13 GPIO pins directly drive 7-segment LEDs or scan matrix keypads without external buffer ICs. The 896-byte OTP memory accommodates typical state-machine control firmware including timer sequencing, sensor polling, and user-feedback handling. The 2.5V to 6.0V operating range allows direct interfacing with 3.3V or 5V logic-level peripherals, while the 4 MHz clock and 200 ns instruction cycle deliver deterministic response times required for switch-debounce and display multiplexing cycles in domestic appliances.
推荐
Automotive Body Electronics
Within automotive body modules - power-window controllers, seat-position memory, mirror-adjustment electronics - the PIC16LC620A-04I/SO provides the deterministic 200 ns instruction cycle needed for time-critical switch-event handling while its 8-bit core and 96-byte RAM support the protocol stacks for LIN-bus-like inter-module communication. The -40C to +85C industrial temperature range covers under-dash and cabin environments. The 25 mA sink/source capability on each GPIO allows direct drive of small relays and indicator LEDs, while the 18-SOIC package survives the thermal-cycling profile of vehicle interior electronics assemblies validated through standard automotive reliability testing.
推荐
Industrial Sensor Interface Boards
The PIC16LC620A-04I/SO serves as a cost-optimized digital I/O aggregator on industrial sensor interface boards where it can debounce mechanical limit switches, drive optocoupler inputs, and generate PWM outputs for solenoid-valve control using its 8-bit Timer0. The 2-level hardware stack is sufficient for the linear control flow typical of these applications, while the 35-instruction RISC architecture simplifies assembler-level programming for resource-constrained firmware teams. The industrial -40C to +85C temperature range and SOIC-18 surface-mount package align with standard factory-automation PCB assembly processes, including wave-solder and reflow profiles.
推荐
Battery-Powered Remote Control Transmitters
In low-duty-cycle battery-powered remote-control transmitters (garage-door openers, RF key fobs, security keypads), the PIC16LC620A-04I/SO benefits from the CMOS low-voltage 'LC' design that draws single-digit microampere standby current, preserving CR2032 coin-cell runtime for multi-year deployments. The 13 GPIO pins can matrix-scan up to 64 keys when paired with a 1-of-16 decoder, while the internal watchdog timer ensures reliable operation through automotive key-fob-style mechanical vibration. The 4 MHz maximum clock is sufficient for 38 kHz carrier generation for consumer IR protocols, and the wake-on-interrupt capability of the INT-pin allows deep-sleep mode between button presses.
推荐
LED Display and Indicator Drivers
The PIC16LC620A-04I/SO is widely deployed as a 13-channel LED chaser or scanner driver where it multiplexes 7-segment displays, status-indicator bars, or chasing light strips using a software-driven time-multiplex scheme without external driver ICs. The 25 mA per-pin sink capability directly drives common-cathode 7-segment digits with appropriate current-limiting resistors, while the 200 ns instruction cycle sustains high refresh rates that eliminate visible flicker on multiplexed displays. The 'LC' low-voltage CMOS rail accommodates 3.3V regulated supplies typical of USB-powered LED fixtures and decorative lighting controllers.
推荐
Low-Cost Educational and Hobbyist Platforms
The PIC16LC620A-04I/SO's 35-instruction RISC architecture and 18-SOIC through-hole-friendly package make it a staple in educational microcontroller courses and hobbyist platforms where students learn embedded C or PIC assembly using the MPLAB X IDE and PICkit programmers. The 896 bytes of OTP memory comfortably fits classic 'blink-the-LED', 'read-an-input', and 'drive-a-stepper-motor' tutorial programs that form core embedded-systems curricula. The wide 2.5V to 6.0V supply tolerance enables prototyping from USB power banks, 4xAA battery packs, or 9V wall adapters with simple linear regulators.
推荐
推荐产品汇总
工程参考数据： PIC16LC620A-04I/SO ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16LC620A-04/SO | PIC16LC620A-04E/SO | PIC16LC620-04I/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC (SMD) | 18-SOIC (SMD) - same | 18-SOIC (SMD) - same | 18-SOIC (SMD) - same |
| Program Memory | 896 B OTP (512 x 14) | 896 B OTP (512 x 14) | 896 B OTP (512 x 14) | 896 B EPROM (non-A) |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Supply Voltage Range | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V |
| Operating Temperature | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| I/O Pins | 13 | 13 | 13 | 13 |
| Instruction Cycle | 200 ns | 200 ns | 200 ns | 200 ns |
关键差异点
- Industry-standard PIC16C architecture with mature tool chain （对比 PIC16F630-I/SO)
- Wide 2.5 V to 6.0 V supply voltage tolerance （对比 PIC16C620A-04I/SO)
- Industrial temperature grade versus commercial-grade alternatives （对比 PIC16LC620A-04/SO)
设计说明
Place a 100 nF decoupling capacitor as close as possible between Vdd (pin 11) and Vss (pin 10) to suppress switching noise from the internal oscillator. For applications with motor or relay coils near the MCU, add a 10 uF tantalum bulk capacitor in parallel. The PIC16LC620A-04I/SO draws only single-digit microampere standby current in sleep mode, allowing battery-powered designs to run multi-year on a single CR2032 coin cell.
OTP memory cannot be erased electrically - if a firmware bug is found after programming, the part must be discarded and a fresh unit programmed. For prototyping and field-update scenarios, choose a flash-based PIC16F630-I/SO or PIC16F676-I/SO instead, which are pin-compatible with most PIC16C620A designs. Ensure the MCLR pin (pin 1) is tied to Vdd through a 10 kohm pull-up resistor to enable normal operation; floating MCLR causes erratic reset behavior.
The 18-SOIC package has a 0.300 inch body width - keep analog and digital ground returns separate on a star-ground topology to minimize ADC noise coupling (notwithstanding that PIC16LC620A has no ADC, follow the pattern for future migration to PIC16F variants). Keep the oscillator traces (RA5/OSC1, RA6/OSC2 if used) short and guarded by ground pours on both sides. Avoid running high-current traces directly under the MCU to prevent inadvertent logic-level corruption.
合规信息
RoHS compliance inferred from Microchip legacy product line. AEC-Q100 not qualified (use PIC16F882 or PIC16F887 with automotive grade 'F' suffix for automotive). OTP memory and industrial temperature grade are the primary distinguishing characteristics.
