PIC16LCE623-04I/P - 4MHz 8-bit OTP MCU 896B | Microchip DIP-18
部品番号: PIC16LCE623-04I/P ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.18 | $21.80 |
| 100 | $1.92 | $192.00 |
| 500 | $1.74 | $870.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC16LCE623-04I/P 概要
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and peripheral I/O on one die. PIC microcontrollers use a Harvard RISC architecture with a 14-bit instruction word, which keeps instruction fetch and data access on separate buses for deterministic timing. In the broader taxonomy, this places the PIC16LCE623 in the 8-bit MCU class within the microcontroller family, sitting under embedded computing and above discrete logic. The "LC" low-voltage CMOS prefix extends the original PIC16C die to sub-3V operation, while the "E" denotes an enhanced mid-range core.
Key features include a 4 MHz maximum oscillator frequency, an 8-bit ADC (depending on the specific die variant), internal and external interrupt sources, a watchdog timer with dedicated on-chip RC oscillator, power-saving Sleep mode, and in-circuit serial programming (ICSP). The 14-bit instruction set delivers roughly 200 ns per instruction at 20 MHz (proportionally longer at 4 MHz), giving deterministic interrupt latency that is critical for real-time control loops. The through-hole DIP-18 footprint simplifies breadboarding and field repair, and the industrial temperature range allows deployment in uncontrolled enclosures.
Typical uses include appliance control, low-end sensor interfaces, replacement of discrete logic in glue applications, battery-powered instruments taking advantage of the low-voltage core, and educational or hobbyist projects where OTP and through-hole packaging are advantages. The 4 MHz ceiling indicates the "-04" speed grade; higher "-20" grades exist for the same die.
When designing with this part, ensure Vdd decoupling with at least 100 nF plus bulk capacitance, leave the MCLR pin pulled high through 10 kohm for normal operation, and respect the OTP programming window (one-time programmable - cannot be re-flashed after the programming window is closed). The DIP-18 footprint supports both socketed and soldered installations, easing real prototyping.
ドロップイン代替品: PIC16LCE623-04I/P — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC16LCE623-04I/P （同一形状・フットプリント） — 相違点: Program Memory Size, Package, RAM Size, Program Memory Type, Core.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16LCE623-04E/P
✅ ドロップイン✓ 在庫あり
$1.98 / 個
データシートを見る →PIC16LCE623-04/P
✅ ドロップイン✓ 在庫あり
$1.45 / 個
データシートを見る →PIC16LC622-04I/P
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.55 / 個
データシートを見る →PIC16F630-I/P
✅ ドロップイン✓ 在庫あり
$0.86 / 個
データシートを見る →PIC16F676-I/P
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PIC16LCE623-04I/P 最大定格＆電気的特性
| Core | PIC 8-bit RISC (14-bit instruction) |
| Program Memory Size | 896 bytes (OTP) |
| Program Memory Type | OTP (One-Time Programmable) |
| RAM Size | 96 bytes |
| EEPROM Size | 128 bytes (per family) |
| Maximum CPU Frequency | 4 MHz |
| I/O Pins | 13 |
| Supply Voltage (Vdd) | 2.5 V to 5.5 V |
| 動作温度 | -40C to +85C (Industrial) |
| パッケージ | 18-DIP (0.300 inch, 7.62 mm) through-hole |
| 実装タイプ | Through-Hole |
| ピン数 | 18 |
| データバス幅 | 8-bit |
| Peripherals | Watchdog Timer, Sleep mode, ICSP |
PIC16LCE623-04I/P ピン構成
| ピン 1 | RA2 — Bidirectional I/O port A bit 2 |
| ピン 2 | RA3 — Bidirectional I/O port A bit 3 |
| ピン 3 | RA4/T0CKI — I/O port A bit 4 / Timer 0 clock input |
| ピン 4 | MCLR — Master Clear (reset) input, active low |
| ピン 5 | VSS — Ground reference |
| ピン 6 | RB0/INT — I/O port B bit 0 / External interrupt input |
| ピン 7 | RB1 — Bidirectional I/O port B bit 1 |
| ピン 8 | RB2 — Bidirectional I/O port B bit 2 |
| ピン 9 | RB3 — Bidirectional I/O port B bit 3 |
| ピン 10 | RB4 — Bidirectional I/O port B bit 4 |
| ピン 11 | RB5 — Bidirectional I/O port B bit 5 |
| ピン 12 | RB6 — Bidirectional I/O port B bit 6 |
| ピン 13 | RB7 — Bidirectional I/O port B bit 7 |
| ピン 14 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
| ピン 15 | OSC2/CLKOUT — Oscillator output / Clock output |
| ピン 16 | OSC1/CLKIN — Oscillator input / Clock input |
| ピン 17 | RA0 — Bidirectional I/O port A bit 0 |
| ピン 18 | RA1 — Bidirectional I/O port A bit 1 |
主な用途
PIC16LCE623-04I/P の用途: 7 件s: Appliance Control Boards, Battery-Powered Sensor Interfaces, Educational and Hobbyist Projects, Replacement of Discrete Logic (Glue Logic Consolidation), Industrial Sensor Signal Conditioning, Automotive Aftermarket Accessories (Legacy), Low-Cost Consumer Electronics (Legacy Designs).
Appliance Control Boards
The PIC16LCE623-04I/P fits appliance control boards requiring a simple 8-bit MCU with through-hole DIP-18 packaging for hand-repairable designs. Its 4 MHz CPU delivers ~1 microsecond instruction cycle, sufficient for relay timing, sensor sampling, and LED indicator multiplexing on washing machines, microwave ovens, and HVAC controls. The 13 I/O pins handle keypad scanning (RB0-RB7) and TRIAC/relay drive (RA0-RA4). The 96-byte SRAM accommodates small state machines, while 128 bytes of EEPROM retain user settings across brown-outs. Designers value the OTP variant for low unit cost in high-volume appliances where firmware is final. The industrial -40C to +85C temperature grade supports unheated garage and basement installations where extended-temperature operation is mandatory.
おすすめ
Battery-Powered Sensor Interfaces
Battery-powered sensor interfaces benefit from the PIC16LCE623-04I/P's low-voltage CMOS core, which operates from 2.5 V down and supports Sleep mode current in the microamp range. The 13 I/O pins can drive analog sensors directly, with on-chip ADC channels reading battery voltage, temperature, or light level. The 4 MHz CPU speed is adequate for 10-100 Hz sampling loops used in thermostats, weather stations, and portable instruments. OTP memory prevents accidental firmware corruption in the field, an asset for medical or industrial sensors shipped as sealed units. The DIP-18 package simplifies battery-compartment service: technicians can swap the MCU without surface-mount rework tools. Brown-out detection and the watchdog timer add robustness for unattended, low-duty-cycle sensor nodes.
おすすめ
Educational and Hobbyist Projects
The PIC16LCE623-04I/P is well-suited to educational and hobbyist projects thanks to its DIP-18 through-hole package, breadboard-friendly pinout, and standard PIC16C6x architecture supported by decades of tutorials. The 4 MHz speed grade allows external resonator operation or internal RC oscillator use, simplifying lab prototypes. OTP memory forces students to validate firmware on a flash part first, then port to the OTP device for the final project, instilling disciplined development habits. The industrial temperature rating makes the part forgiving of lab-environment variations. PICkit programmers and the MPLAB IDE ecosystem support the PIC16C6x family natively, lowering the learning curve. Classroom budgets benefit from the PIC16LCE623's low unit cost on legacy stock channels.
おすすめ
Replacement of Discrete Logic (Glue Logic Consolidation)
The PIC16LCE623-04I/P excels at glue-logic consolidation, replacing dozens of 74-series TTL/CMOS gates with a single programmed MCU. Its 13 I/O pins and 4 MHz CPU can implement state machines, sequencers, and PWM generators that would otherwise require dedicated timer or counter ICs. OTP programming locks the final logic, preventing field modification - a feature for cost-sensitive consumer products where reliability matters more than reconfigurability. The DIP-18 package matches common glue-logic footprints, simplifying PCB migration from gate arrays to microcontrollers. Industrial temperature range and 2.5-5.5 V supply tolerance enable direct interface to legacy 5 V logic families. Watchdog timer and brown-out reset add resilience against supply transients in industrial environments.
おすすめ
Industrial Sensor Signal Conditioning
Industrial sensor signal conditioning uses the PIC16LCE623-04I/P for low-speed linearization, calibration, and digital filtering of analog transducer signals. Its on-chip ADC samples thermocouples, strain gauges, and process-voltage inputs at rates compatible with 4-bit to 12-bit effective resolution after averaging. The 96-byte SRAM buffers raw ADC samples before the firmware applies calibration coefficients stored in EEPROM. The industrial temperature grade handles factory-floor environments. OTP memory secures proprietary calibration algorithms, preventing reverse engineering. The DIP-18 package simplifies socketed calibration in test fixtures, where each unit is individually programmed with its transducer compensation data. Brown-out reset ensures a clean restart after industrial power glitches.
おすすめ
Automotive Aftermarket Accessories (Legacy)
Legacy automotive aftermarket accessories, including alarm systems, remote starters, and gauge clusters, historically used the PIC16LCE623-04I/P because of its industrial temperature rating, OTP memory, and through-hole DIP-18 package. The 4 MHz CPU drives LED bar-graph displays, scans 4x4 keypads, and generates PWM for servo control. Brown-out detection and watchdog reset are critical in automotive environments with cranking transients and load-dump events. OTP programming locks aftermarket calibration, preventing end-user tampering with safety-critical parameters. Although new automotive designs should use AEC-Q100-qualified flash parts, repair shops still rely on the PIC16LCE623 for legacy vehicle maintenance. The 2.5-5.5 V supply operates directly from 12 V vehicle rails after a simple regulator stage.
おすすめ
Low-Cost Consumer Electronics (Legacy Designs)
Low-cost consumer electronics - remote controls, toys, digital clocks, simple kitchen timers - have historically used the PIC16LCE623-04I/P for its low unit cost, OTP security, and through-hole DIP-18 package friendly to automated insertion equipment. The 4 MHz CPU supports IR remote decoding, seven-segment LED multiplexing, and basic melody generation. The 96-byte SRAM holds button-debounce state and timing variables; 128 bytes of EEPROM retain user preferences. OTP memory prevents casual firmware copying, important for consumer brands protecting proprietary control sequences. The industrial temperature grade handles shipping and storage extremes. For new designs, however, Microchip recommends the PIC16F family to avoid the obsolescence issues now affecting the OTP PIC16LC line.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC16LCE623-04I/P — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC16LCE623-04E/P | PIC16LCE623-04/P | PIC16LC622-04I/P | PIC16F630-I/P | PIC16F676-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-DIP (PDIP) | 18-DIP (PDIP) - same | 18-DIP (PDIP) - same | 18-DIP (PDIP) - same | 18-DIP (PDIP) - same | 18-DIP (PDIP) - same |
| Program Memory Type | OTP (896 B) | EPROM/EEPROM (896 B) | OTP (896 B) | OTP (896 B) | Flash (1024 words) | Flash (1024 words) |
| Maximum CPU Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz |
| RAM Size | 96 B | 96 B | 96 B | 96 B | 64 B | 64 B |
| I/O Pins | 13 | 13 | 13 | 13 | 12 | 12 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | 0C to +70C (Commercial) | -40C to +85C | -40C to +85C | -40C to +85C |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Active | Active |
主な差別化要因
- Industrial temperature grade in legacy OTP package （vs PIC16LCE623-04/P)
- Flash-based reprogrammability on same footprint （vs PIC16F630-I/P)
- Industrial-grade 8-bit MCU at low unit cost on legacy stock （vs PIC16F676-I/P)
設計ノート
Decouple Vdd (pin 14) with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a 10 microfarad bulk capacitor on the same rail. Estimated: at 4 MHz CPU and full I/O switching, the PIC16LCE623-04I/P draws approximately 2-5 mA active; bulk capacitance prevents digital switching noise from corrupting analog ADC readings. The low-voltage CMOS core permits operation down to 2.5 V, but brown-out detection must be enabled in the configuration bits to guarantee a clean reset on power-up ramps.
Route the MCLR pin (pin 4) with a 10 kohm pull-up to Vdd and a 100 nF capacitor to ground for noise immunity; without these, transient spikes can trigger spurious resets in electrically noisy environments. Estimated: keep oscillator traces (OSC1/OSC2, pins 16/15) under 20 mm and away from switching regulator or relay traces to minimize EMI coupling. For crystal operation, place load capacitors (typically 15-33 pF) within 5 mm of the oscillator pins to reduce startup issues and frequency drift.
Critical: OTP memory can be programmed only ONCE. Validate firmware on a flash-based equivalent (PIC16F630-I/P) before committing code to PIC16LCE623-04I/P devices. Configuration bits must be set correctly or the device may lock out further programming attempts. Brown-out detection should be enabled in the configuration word to prevent undefined behavior during Vdd dips below 2.5 V. Do not exceed 5.5 V on Vdd - the CMOS core does not tolerate over-voltage and lacks internal clamping diodes on I/O pins.
コンプライアンス情報
RoHS and REACH compliance not explicitly confirmed in provided data; legacy OTP PIC16LC family predates widespread RoHS adoption, so many original through-hole variants may not be RoHS compliant. Distributor listings should be checked for the latest RoHS suffix (-04I/P is industrial, no RoHS indicator visible). For new designs requiring compliance, migrate to PIC16F variants with confirmed RoHS status.
