PIC18LC801T-I/L - 8-bit 25MHz ROMless MCU, 84-PLCC | Microchip
部品番号: PIC18LC801T-I/L ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.7 | $2,350.00 |
| 1,000 | $4.3 | $4,300.00 |
PIC18LC801T-I/L 概要
An 8-bit microcontroller (MCU) is a small, self-contained computing element that integrates a CPU, RAM, non-volatile program memory, and peripherals onto a single die. The PIC18 family is Microchip's high-performance 8-bit line, employing a 16-bit opcode modified Harvard architecture and a RISC instruction set that allows most instructions to execute in a single clock cycle. Within that hierarchy, ROMless parts such as the PIC18LC801 omit on-chip program memory entirely; instead, they fetch every instruction from an external EPROM/Flash or mask-ROM device through a parallel memory port, which is the typical topology for cost-sensitive high-volume products where firmware is stable and memory density is high.
The defining features of this device include 37 GPIO pins, 1.5 KB of on-chip SRAM, a 25 MHz maximum clock, an external memory bus capable of addressing up to 2 MB, two 8-bit timer/counters, three 16-bit timer/counters, two Capture/Compare/PWM modules, two USART modules with LIN support, an MSSP (SPI/I2C) port, a 10-bit ADC, two analog comparators, and a watchdog timer. The low-voltage LC silicon permits operation from a single Li-ion cell or two alkaline cells, and the industrial temperature grade supports outdoor and factory-automation deployments.
The PIC18LC801 uses Microchip's nanoWatt power-management technology to provide multiple idle and sleep modes, reducing quiescent current to a few microamps in sleep. The 84-pin PLCC package offers through-hole-style robust leads while still being surface-mountable on the same footprint, simplifying wave-solder prototyping and rework. Programmable weak pull-ups on most I/O pins and configurable interrupt edge selection reduce external component count.
Typical applications include industrial control front-ends, sensor hubs, low-voltage consumer appliances, automotive body controllers (non-safety), smart-metering peripherals, and any volume product where external program memory is preferred over on-chip flash. The PIC18LC801 is also a frequent companion controller to a host processor or DSP, providing deterministic 8-bit glue logic, keypad scanning, and display driving in mixed-architecture systems.
When designing with this part, ensure the external memory bus timing matches the selected program memory device, as access-time mismatches cause fetch stalls. Provide adequate decoupling (100 nF + 10 uF) near both VDD and AVSS pins and reserve MCLR pull-up, and observe the 5.5V absolute maximum on any pin to prevent latch-up in noisy industrial environments.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, and gives engineers a concise entry-point for platform reuse across the PIC18LC801 family.
ドロップイン代替品: PIC18LC801T-I/L — 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: PIC18LC801T-I/L （同一形状・フットプリント） — 相違点: Package, ADC, Operating Temperature, 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:
PIC18LC801-I/L
✅ ドロップイン✓ 在庫あり
$9.62 / 個
データシートを見る →PIC18LC801-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC18LC801T-I/PT
✅ ドロップイン✓ 在庫あり
$9.2 / 個
データシートを見る →PIC18LC452T-I/L
✅ ドロップイン✓ 在庫あり
$7.1 / 個
データシートを見る →PIC18LC442T-I/L
✅ ドロップイン✓ 在庫あり
$5.45 / 個
データシートを見る →PIC18LC452T-I/PT
✅ ドロップイン✓ 在庫あり
$9.5 / 個
データシートを見る →PIC18LC801T-I/L 最大定格＆電気的特性
| Architecture | 8-bit PIC18 RISC (modified Harvard) |
| Core Sub-Architecture | PIC18 |
| Program Memory Type | ROMless (external memory bus) |
| On-chip Flash/ROM | 0 (none - external program memory only) |
| RAM Size | 1.5 KB (1.5K x 8) |
| Maximum CPU Clock | 25 MHz |
| Instruction Cycle | 4 clock periods (10 MIPS at 40 MHz, scaled to 25 MHz) |
| Supply Voltage Range | 2.0 V to 5.5 V (LC low-voltage family) |
| Number of I/O Pins | 37 |
| パッケージ | 84-LCC (PLCC, J-Lead), tape and reel |
| 実装タイプ | Surface Mount (J-Lead) |
| 動作温度 | -40 C to +85 C (Industrial, 'I' suffix) |
| External Memory Bus | Parallel, up to 2 MB addressable |
| Communication Interfaces | 2x USART (LIN-capable), 1x MSSP (SPI/I2C) |
| ADC | 10-bit, multi-channel |
| Timers | 2x 8-bit + 3x 16-bit timer/counter |
| PWM / Capture-Compare | 2x CCP modules |
| Watchdog Timer | Yes (on-chip, software-enabled) |
| Analog Comparators | 2 |
| Power-Saving Modes | nanoWatt idle/sleep, multiple low-power states |
PIC18LC801T-I/L 84-lcc (plcc, j-lead), tape and reel ピン配置ガイド
PIC18LC801T-I/L (84-lcc (plcc, j-lead), tape and reel パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: PIC18LC801T-I/L.
詳細は データシート をご参照ください。
主な用途
PIC18LC801T-I/L の用途: 6 件s: Industrial Sensor Hub Controller, Battery-Powered Smart Metering, Automotive Body Controller (Non-Safety), Low-Voltage Consumer Appliance Controller, Glue Logic / Co-Processor for DSP or Host CPU, Display and Keypad Front-End.
Industrial Sensor Hub Controller
The PIC18LC801T-I/L fits industrial sensor hubs through its 37 GPIO pins, dual USART (LIN-capable), MSSP SPI/I2C, and 10-bit ADC, allowing direct connection to multi-channel sensor front-ends without external glue logic. Its ROMless architecture lets designers pair the MCU with cost-optimized external program memory, lowering BOM cost in volume production. The 25 MHz CPU executes deterministic sensor-read cycles in single instruction ticks, while the 2.0V-5.5V supply range accepts industrial 24V-bus-derived rails after regulation. Estimated: 37 GPIO with 8 ADC channels covers 4-8 sensor channels plus status LEDs and an SPI display, keeping all logic inside a single 84-PLCC part. Same-brand companions such as PIC18LC452T-I/L provide a flash-based alternate for engineering builds while the ROMless part handles the production run.
おすすめ
Battery-Powered Smart Metering
The PIC18LC801T-I/L fits battery-powered metering through its 2.0 V minimum VDD, which supports single Li-ion cell operation down to cut-off voltage, and its nanoWatt idle/sleep modes that drop quiescent current into the microamp range between metering intervals. The 10-bit ADC and dual analog comparators digitize sensor signals without external amplifier stages, and the 25 MHz clock performs measurement and accumulation cycles quickly enough to keep active duty-cycle below 1 percent on metrology-grade duty cycles. Estimated: with VDD=3.0 V and average active current of 5 mA at 1 percent duty cycle, average drain is approximately 50 uA, supporting multi-year battery life on a single 2.4 Ah cell.
おすすめ
Automotive Body Controller (Non-Safety)
The PIC18LC801T-I/L fits non-safety body-electronics modules such as seat controllers, mirror modules, and lighting drivers through its dual LIN-capable USARTs, 37 GPIO that can source/sink indicator LEDs and small relays, and industrial -40C to +85C temperature grade that survives under-dash and door-module thermal loads. The ROMless architecture lowers cost on high-volume vehicle programs where firmware is locked at production, and the 84-PLCC package withstands vibration better than fine-pitch QFN in door and seat environments. The LC silicon's 5.5 V maximum tolerates typical 12 V automotive rails after pre-regulation.
おすすめ
Low-Voltage Consumer Appliance Controller
The PIC18LC801T-I/L fits low-voltage consumer appliances such as battery shavers, cordless vacuums, and handheld kitchen devices, where the 2.0V-5.5V range supports direct Li-ion or 2x alkaline operation and the nanoWatt sleep modes extend charge-cycle life. The 10-bit ADC reads battery voltage, motor current, and user-interface potentiometers directly, while the PWM-capable CCP modules drive brushless-DC or brushed-DC motor gates through external FET bridges. Estimated: a 25 MHz core completes a 1 ms control loop in 25,000 instruction cycles, more than sufficient for FOC and trapezoidal commutation algorithms on small BLDC motors.
おすすめ
Glue Logic / Co-Processor for DSP or Host CPU
The PIC18LC801T-I/L fits glue-logic and co-processor roles in mixed-architecture systems where a DSP or 32-bit host CPU offloads deterministic 8-bit tasks such as keypad scanning, character-LCD driving, rotary-encoder decoding, and discrete I/O expansion. Its dual USART bridges the host CPU to legacy RS-232/485 devices, and its SPI MSSP can act as either controller or peripheral for additional memory or display ICs. The 25 MHz instruction rate supports up to 10 MIPS throughput, enough to handle UART at 115.2 kbaud plus real-time keypad debouncing with sub-5 ms response.
おすすめ
Display and Keypad Front-End
The PIC18LC801T-I/L fits character-LCD and matrix-keypad front-ends in industrial HMI panels through its 37 GPIO, which can simultaneously drive a 16x2 character LCD, scan a 4x4 keypad, and provide interface to a host CPU via SPI or UART. The ROMless architecture lets the firmware live in inexpensive external EPROM, ideal for fixed-function HMIs that never require firmware updates. The 84-PLCC footprint is also convenient for through-hole-style prototyping, which simplifies hand rework during UI layout iterations.
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: PIC18LC801T-I/L — 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 | PIC18LC801-I/L | PIC18LC801-I/PT | PIC18LC801T-I/PT | PIC18LC452T-I/L | PIC18LC442T-I/L | PIC18LC452T-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 84-LCC (PLCC, J-Lead) | 84-LCC (PLCC, J-Lead) - same | TQFP-80 - different | TQFP-80 - different | 84-LCC (PLCC, J-Lead) - same | 84-LCC (PLCC, J-Lead) - same | TQFP-80 - different |
| Architecture / Family | PIC18 RISC, 8-bit, LC low-voltage | PIC18 RISC, 8-bit, LC low-voltage - same | PIC18 RISC, 8-bit, LC low-voltage - same | PIC18 RISC, 8-bit, LC low-voltage - same | PIC18 RISC, 8-bit, LC low-voltage - same family, on-chip flash | PIC18 RISC, 8-bit, LC low-voltage - same family, on-chip flash | PIC18 RISC, 8-bit, LC low-voltage - same family, on-chip flash |
| Program Memory | ROMless (external bus) | ROMless - same | ROMless - same | ROMless - same | 32 KB on-chip flash | 16 KB on-chip flash | 32 KB on-chip flash |
| Maximum Clock | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 40 MHz | 40 MHz | 40 MHz |
| RAM Size | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB |
| Number of I/O Pins | 37 | 37 | 47 | 47 | 34 | 34 | 44 |
| Supply Voltage Range | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
主な差別化要因
- ROMless external-memory architecture for the lowest-cost high-volume production （vs PIC18LC452T-I/L)
- Industrial -40C to +85C temperature grade in 84-PLCC J-Lead for vibration tolerance （vs PIC18LC801-I/PT (TQFP-80))
- Tape-and-reel packaging for high-throughput pick-and-place lines （vs PIC18LC801-I/L (tube))
設計ノート
Decouple each VDD/AVDD pair with a 100 nF X7R ceramic plus a bulk 10 uF aluminum-polymer or tantalum capacitor placed within 5 mm of the package pin pair. Estimated: at 25 MHz operation, the LC silicon draws approximately 10-15 mA active and 5-15 uA in sleep; choose the bulk value large enough to handle in-rush without dropping VDD more than 50 mV during oscillator start-up.
Route the external memory bus (Port D and Port E upper bytes on this family) as matched-length parallel tracks with ground shielding between byte groups; this minimizes bus skew that would otherwise cause fetch-stalls at 25 MHz. Keep the MCLR pull-up (typically 10 kohm) close to the pin and add a 100 nF cap to ground to reject noise, since MCLR glitches can trigger unwanted resets on industrial sensor hubs.
Do not exceed the 5.5 V absolute maximum on any pin, including I/O pins used as analog inputs; even brief transients above VDD cause latch-up. When migrating from a flash-based PIC18 part (for example PIC18LC452T-I/L), verify that the external memory bus pins are re-purposed correctly in firmware, because PORTD and PORTE alternate-function assignments differ between ROMless and flash variants even on the same pin number.
The 84-pin PLCC package dissipates approximately 1 W at maximum CPU load in still air; the J-Lead frame provides adequate thermal mass for industrial environments. Estimated: at 25 MHz and full GPIO toggle load, junction temperature rise above ambient is roughly 25-35 C with no airflow on a 100x100 mm FR-4 board, well within the -40 C to +85 C industrial spec. For sealed enclosures, derate ambient by 10-15 C or add a small copper heatsink pad under the PLCC.
コンプライアンス情報
RoHS, REACH, lead-free, halogen-free, and conflict-minerals status not stated in the verified web data; consult Microchip product page or manufacturer compliance letter before volume commitment. AEC-Q100 not qualified - this part targets industrial, not automotive safety, applications.
