PIC16LC558-04E/SS - 8-bit OTP MCU 4MHz 3.5KB 20-SSOP | Microchip
Артикул: PIC16LC558-04E/SS ⚠ Последняя закупка| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $4.95 | $4,95 |
| 10 | $4.45 | $44,50 |
| 100 | $3.96 | $396,00 |
| 500 | $3.55 | $1.775,00 |
| 1.000 | $3.15 | $3.150,00 |
PIC16LC558-04E/SS Обзор
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripherals on one die. The PIC16C/LC family uses a Harvard RISC architecture with a 14-bit instruction word, which improves code density compared to byte-oriented 8-bit CISC cores. Within the broader taxonomy, the PIC16LC558 sits between PIC12/14 sub-families and higher-end PIC18 devices, and historically competed with 8051-core MCUs and early AVR tiny/Classics. The 'LC' suffix indicates a low-voltage (2.5V-5.5V) variant versus the standard PIC16C range.
Key features of the PIC16LC558-04E/SS include a 4 MHz maximum operating frequency, 13 digital I/O pins, an integrated watchdog timer, brown-out reset, power-on reset, and a programmable 8-bit timer/counter. The OTP memory is factory- or field-programmable once and is non-erasable, which lowers per-unit cost for high-volume production but rules out firmware updates. The 'E' suffix denotes an extended industrial temperature grade of -40C to +125C, making this part suitable for harsh-environment applications.
Architecturally, the PIC16LC558 employs a two-stage pipeline and 14-bit-wide instruction fetch to execute most instructions in one instruction cycle (4 clock periods). On-chip peripherals include a 5-channel 8-bit ADC, an analog comparator, and a USART/SCI port. The Harvard bus separates program and data fetches, allowing simultaneous access and deterministic interrupt latency. Power management is handled via Sleep mode with wake-on-change, and the brown-out reset thresholds are factory-trimmed.
Typical applications for the PIC16LC558-04E/SS include automotive body electronics (window lifters, seat controllers), industrial sensor interfaces, low-end white goods and appliance controllers, battery chargers, LED drivers, and remote-control transmitters. The extended temperature grade and OTP economics are well-matched to high-volume, sealed-unit products where field firmware updates are unnecessary.
When designing with this part, note that OTP memory prevents in-system firmware iteration; engineering samples should be evaluated on a windowed (JW) or UV-erasable variant before committing to OTP for production. Programming requires a Microchip ICD or compatible device programmer, and code must fit within 2K x 14 instructions. Plan for worst-case I/O count, as some pins are multiplexed with the reset or oscillator functions.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the manufacturer datasheet.
Аналоги без доработки для PIC16LC558-04E/SS — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с PIC16LC558-04E/SS (тот же форм-фактор и посадочное место) — отличается по Package, Mounting Type, Core, Internal Oscillator, RAM Size.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC16F648A-I/SS
✅ Прямая замена✓ В наличии
$1.78 / шт.
Открыть даташит →PIC16F88-I/SS
✅ Прямая замена✓ В наличии
$3.08 / шт.
Открыть даташит →PIC16F877A-I/SS
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16LC558-04I/SS
✅ Прямая замена✓ В наличии
$1.38 / шт.
Открыть даташит →PIC16C711-04/P
✅ Прямая замена✓ В наличии
$2.54 / шт.
Открыть даташит →PIC16LC558-04E/SS Максимальные параметры и электрические характеристики
| Family | PIC16C |
| Core | 8-bit RISC (14-bit instruction word) |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 x 8 bytes |
| Максимальная тактовая частота | 4 MHz |
| I/O Pins | 13 |
| Корпус | 20-pin SSOP |
| Тип монтажа | Surface Mount (Gull Wing) |
| Temperature Grade | Extended (E): -40C to +125C |
| AEC-Q100 | not_applicable (PIC16C OTP, not automotive-qualified) |
| Peripherals | Watchdog Timer, Brown-Out Reset, Power-On Reset, 8-bit Timer |
| Terminal Form | GULL WING |
Конфигурация выводов PIC16LC558-04E/SS
| Контакт 1 | RA2 — Port A bit 2 (digital I/O, analog input channel 2) |
| Контакт 2 | RA3 — Port A bit 3 (digital I/O, analog input channel 3) |
| Контакт 3 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input (open-drain) |
| Контакт 4 | RA5 — Port A bit 5 (digital I/O, analog input channel 4) |
| Контакт 5 | Vss — Ground |
| Контакт 6 | RB0/INT — Port B bit 0 / External interrupt |
| Контакт 7 | RB1 — Port B bit 1 |
| Контакт 8 | RB2 — Port B bit 2 |
| Контакт 9 | RB3 — Port B bit 3 |
| Контакт 10 | RB4 — Port B bit 4 |
| Контакт 11 | RB5 — Port B bit 5 |
| Контакт 12 | RB6 — Port B bit 6 |
| Контакт 13 | RB7 — Port B bit 7 |
| Контакт 14 | Vdd — Positive supply voltage |
| Контакт 15 | OSC2/CLKOUT — Oscillator output / clock out |
| Контакт 16 | OSC1/CLKIN — Oscillator input / external clock in |
| Контакт 17 | RA0 — Port A bit 0 (digital I/O, analog input channel 0) |
| Контакт 18 | RA1 — Port A bit 1 (digital I/O, analog input channel 1) |
| Контакт 19 | MCLR/Vpp — Master Clear (reset) / Programming voltage input |
| Контакт 20 | NC — Not connected (per datasheet) |
Типичное применение
PIC16LC558-04E/SS подходит для 6 применениеs: Automotive Body Electronics, Industrial Sensor Interface, Low-End White Goods Appliance Controller, Battery Charger Controller, LED Driver / Lighting Controller, Remote Control Transmitter.
Automotive Body Electronics
The PIC16LC558-04E/SS is well-suited for automotive body controllers such as window lifters, mirror adjusters, and seat controllers. The extended -40C to +125C temperature grade handles under-dash thermal stress, and the OTP memory provides low per-unit cost for sealed, high-volume modules. With 13 I/O pins and an integrated analog comparator, the part can drive relay logic and read switch contacts directly. Its 4 MHz core executes roughly 1 MIPS, sufficient for debounce, sequencing, and PWM control. For designs that may need firmware updates over the vehicle lifetime, however, an AEC-Q100 flash alternative such as PIC16F648A is preferred.
Рекомендуется
Industrial Sensor Interface
The PIC16LC558-04E/SS is appropriate for industrial sensor conditioning modules, including 4-20 mA loop interfaces, simple limit switches, and encoder counters. The 5-channel 8-bit ADC allows direct connection to analog sensors, while the analog comparator provides fast threshold detection for safety cutoffs. Operating from 2.5 V to 5.5 V (LC family), the device can be powered from industrial 24 V rails via a simple linear regulator. The 13 I/O pins are sufficient for typical sensor-multiplexing front-ends, and the brown-out reset protects against brown-out-induced corruption in noisy industrial settings.
Рекомендуется
Low-End White Goods Appliance Controller
The PIC16LC558-04E/SS serves well as the controller in small household appliances such as coffee makers, rice cookers, and microwave keypads. The OTP memory and SSOP-20 package minimize BOM cost, while the 4 MHz core is more than adequate for user-interface scanning, timer logic, and triac/SCR phase control. The integrated watchdog timer and brown-out reset improve field reliability by recovering from power-line glitches. For sealed consumer units where the firmware will never change after production, the OTP variant offers the lowest total system cost in the Microchip PIC16 portfolio.
Рекомендуется
Battery Charger Controller
The PIC16LC558-04E/SS can act as the supervisor MCU in low-power NiMH or lead-acid battery chargers, where OTP cost-down matters and the LC supply range supports 2-cell or 3-cell battery stacks. The integrated ADC monitors charge current and battery voltage, while PWM outputs drive the charging FET. Sleep mode with wake-on-change achieves quiescent currents below 1 microampere, extending shelf life. The brown-out reset prevents firmware corruption during deep discharge events, and the 13 I/O pins are sufficient for status LEDs, pushbutton input, and the charge-control FET.
Рекомендуется
LED Driver / Lighting Controller
The PIC16LC558-04E/SS is a practical controller for decorative LED strips, RGB lighting modules, and architectural dimmers. Its PWM-capable I/O pins drive MOSFET gate drivers directly for low-side switching of LED strings, and the analog comparator enables zero-cross detection for phase-controlled dimming. The 4 MHz core handles color-mixing math and DMX-style protocol parsing for simple fixtures. OTP memory keeps the BOM low in high-volume decorative products, while the extended temperature range allows outdoor installation in sealed luminaires.
Рекомендуется
Remote Control Transmitter
The PIC16LC558-04E/SS suits low-cost RF or IR remote control transmitters used in consumer electronics and toy applications. The 13 I/O pins easily accommodate 4x4 key matrices, status LEDs, and encoder outputs, while the Sleep mode with wake-on-change extends battery life in handhelds. The integrated watchdog timer improves reliability in low-battery conditions. OTP memory is ideal for sealed remote units where the firmware is finalized at production and per-unit cost is paramount. Migration to PIC16F648A-I/SS provides flash flexibility if model variants require different code pages.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC16LC558-04E/SS — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC16F648A-I/SS | PIC16F88-I/SS | PIC16F877A-I/SS | PIC16LC558-04I/SS | PIC16C711-04/P |
|---|---|---|---|---|---|---|
| Package | 20-pin SSOP | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin PDIP (not SSOP) |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Core | 8-bit PIC16 RISC | 8-bit PIC16 RISC - same | 8-bit PIC16 RISC - same | 8-bit PIC16 RISC - same | 8-bit PIC16 RISC - same | 8-bit PIC16 RISC - same |
| Program Memory Type | OTP (3.5 KB) | Flash (7 KB) | Flash (7 KB) | Flash (14 KB) | OTP (3.5 KB) - same | OTP (1.75 KB) |
| Max Clock Frequency | 4 MHz | 20 MHz (+400%) | 20 MHz (+400%) | 20 MHz (+400%) | 4 MHz - same | 4 MHz - same |
| RAM Size | 128 bytes | 256 bytes (+100%) | 368 bytes (+188%) | 368 bytes (+188%) | 128 bytes - same | 68 bytes (-47%) |
| I/O Pins | 13 | 16 (+23%) | 16 (+23%) | 33 (+154%) | 13 - same | 13 - same |
| Temperature Grade | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C (narrower) | Industrial -40C to +85C (narrower) |
Ключевые отличия
- Only OTP alternative with extended -40C to +125C temperature grade (против PIC16LC558-04I/SS)
- Flash memory and higher clock headroom for product evolution (против PIC16F648A-I/SS)
- Same footprint, more peripherals, larger memory headroom (против PIC16F877A-I/SS)
Заметки по проектированию
The PIC16LC558-04E/SS contains One-Time-Programmable memory that cannot be erased or rewritten. Engineers evaluating firmware must use a windowed PIC16LC558-04/JW or a flash-based PIC16F648A-I/SS during development. Programming a production OTP device with buggy firmware is irreversible and the unit must be discarded, so allocate sufficient development cycles on a flash or windowed sample before committing the OTP part to production programming. Microchip's MPLAB X IDE with ICD 2/3 supports in-circuit debugging only on flash variants.
The PIC16LC558's brown-out reset (BOR) voltage threshold is factory-trimmed and active at power-up by default. When operating from a slowly rising supply (such as a heavily filtered industrial 24 V bus stepped down to 5 V), the BOR can hold the device in reset longer than expected. If the application needs faster startup, the BOR can be disabled in the configuration word, but at the cost of corruption protection. Add a 10 microfarad bulk capacitor at Vdd plus a 100 nF ceramic decoupling capacitor as close to the Vdd pin as possible, per Microchip PIC16 datasheet recommendations.
Place the decoupling capacitor directly across the Vdd and Vss pins of the PIC16LC558-04E/SS with traces no longer than 5 mm, to suppress switching noise on the internal logic. The MCLR/Vpp pin should be tied to Vdd through a 10 kohm resistor and include a 100 nF capacitor to ground for reset signal integrity; during ICSP programming, Vpp is driven high, so the MCLR trace must not be heavily loaded. The OSC1/OSC2 traces should be kept short and away from high-current switching traces to avoid clock corruption.
Информация о соответствии
RoHS/REACH/lead-free status not provided in the verified web data. The PIC16LC558-04E/SS is not AEC-Q100 qualified - use AEC-Q100 automotive PIC16F equivalents (e.g. PIC16F648A-I/SS with automotive suffix) for automotive applications. Conflict minerals compliance per Microchip corporate policy.
