Microchip Technology

PIC18C801T-I/L - 25MHz 8-Bit ROMless MCU 84-PLCC | Microchip

Name: PIC18C801T-I/L - 25MHz 8-Bit ROMless MCU 84-PLCC | Microchip
Brand: Microchip Technology
SKU: PIC18C801T-I/L
Price: 8.5 USD
Availability: InStock

N.º da peça: PIC18C801T-I/L ✗ Fim de vida

Em estoque Enviado em 1 a 3 dias úteis

4.2 V to 5.5 V Vdss 84-pin PLCC (J-Lead, 29.31x29.31 mm) Package 25 MHz Speed ROMless (external memory bus) Memory

A partir de $8.5 USD / unidade

MOQ: 1 |

Preço atualizado: 2026-09-26

Preços por volume

Qtd.	Preço unitário	Total
1	$13.5	$13,50
10	$12.2	$122,00
100	$10.85	$1.085,00
500	$9.6	$4.800,00
1.000	$8.5	$8.500,00

ℹ️ Todos os preços estão em USD

Ver datasheet (PDF) Ver alternativas

Quantidade

PIC18C801T-I/L Visão geral

The Microchip PIC18C801T-I/L is an 8-bit RISC microcontroller from the PIC18C family, supplied in an 84-pin PLCC (J-Lead, 29.31x29.31 mm) surface-mount package and offered on tape and reel. It is rated for industrial temperature operation from -40°C to +85°C and operates from a 4.2V to 5.5V supply. The CPU executes instructions at up to 25 MHz (10 MIPS) using an enhanced Harvard architecture and is delivered as a ROMless device, allowing external program memory expansion.

Background: An 8-bit microcontroller (MCU) is a self-contained computing element that integrates a CPU, RAM, peripheral set, and interrupt controller on a single die. PIC18C-series MCUs sit in Microchip's high-performance 8-bit hierarchy: PIC10/12/16 baseline -> PIC17 mid-range -> PIC18 high-end (RISC, 16-bit instructions, hardware multiplier). The PIC18C family predates PIC18F flash parts and is ROMless, so program code is fetched from an external EPROM or flash memory over a parallel bus. The PIC18C801 is the highest-pin-count member of the family and is specifically designed for external-memory systems that need abundant I/O and large code spaces beyond what on-chip flash can hold.

Key features of the PIC18C801T-I/L include 84 pins in the PLCC J-lead package, 25 MHz maximum clock, industrial -40°C to +85°C temperature range, ROMless external-memory interface, and compatibility with the PIC18C instruction set. Tape-and-reel packaging supports high-volume surface-mount assembly. The "T" suffix indicates tape and reel orientation, while "I" denotes the industrial temperature grade. The "/L" suffix denotes the PLCC J-lead package.

Typical applications include industrial automation controllers, consumer electronics with external program memory, automotive body and chassis control modules, and embedded systems requiring large external code spaces. Engineers choose the PIC18C801T-I/L when on-chip flash is insufficient and an external memory bus is required.

Design consideration: when migrating to modern alternatives, verify that the replacement exposes a compatible external-memory bus or implements an equivalent on-chip flash density, and confirm interrupt and peripheral register compatibility. PIC18C parts are now legacy; PIC18F or dsPIC33 families typically offer pin-compatible migration paths. Always consult the Microchip PIC18C801 errata sheet for known operational differences before committing to a new design.

Alternativas drop-in para PIC18C801T-I/L — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.

Variantes desta série

Modelos da mesma série compatíveis como drop-in com PIC18C801T-I/L (mesmo formato e footprint) — diferindo em Package, Program Memory Type, Operating Temperature, Number of I/O Pins, Program Memory Size.

PIC18C452T-E/L

Microchip Technology

Program Memory Type: OTP (One-Time Programmable)

Operating Temperature: -40C to +125C (extended, E suffix)

Number of I/O Pins: 33

PIC18C601-I/PT

Microchip Technology

Package: 64-pin TQFP (10x10 mm)

Operating Temperature: -40 C to +85 C (Industrial)

Number of I/O Pins: 26

PIC18C658T-I/PT

Microchip Technology

Package: 64-TQFP (10 x 10 mm)

Program Memory Type: OTP (One-Time-Programmable)

Operating Temperature: -40 C to +85 C (Industrial)

PIC18C801-I/L

Microchip Technology

Package: 84-PLCC (29.31 x 29.31 mm, J-Lead)

Operating Temperature: -40C to +85C (industrial, 'I')

✅ Drop-In ⚠️ Especificações não verificadas

Microchip Technology

📦 84-PLCC (J-Lead)

PIC18C · PIC18C452 · PIC 8-bit RISC (Harvard) · OTP (One-Time Programmable) · 32 KB (16K x 16) · 1.5 KB (1.5K x 8) · 256 bytes · 40 MHz / 10 MIPS

✓ Em estoque

$13.1 / unidade

Ver ficha técnica →

PIC18C801T-I/L Classificações máximas e características elétricas

Core	PIC18 8-bit RISC
Largura do barramento de dados	8-bit
Frequência máxima de clock	25 MHz
Program Memory Type	ROMless (external memory bus)
Program Memory Size	ROMless (external)
Supply Voltage (Vdd)	4.2 V to 5.5 V
Temperatura de operação	-40°C to +85°C (industrial)
Temperature Grade	Industrial
Encapsulamento	84-pin PLCC (J-Lead, 29.31x29.31 mm)
Package Code	QCCJ (square, J-bend)
Terminal Form	J-Bend
Number of Terminals	84
Estilo de montagem	Surface Mount
Packaging	Tape and Reel

Configuração de pinos do PIC18C801T-I/L

Pino 1	[DATA_NEEDED] — Pin function depends on datasheet pinout; consult PIC18C801 datasheet
Pino 2	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 3	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 4	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 5	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 6	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 7	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 8	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 9	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 10	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 11	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 12	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 13	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 14	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 15	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 16	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 17	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 18	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 19	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 20	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 21	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 22	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 23	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 24	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 25	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 26	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 27	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 28	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 29	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 30	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 31	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 32	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 33	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 34	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 35	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 36	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 37	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 38	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 39	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 40	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 41	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 42	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 43	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 44	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 45	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 46	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 47	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 48	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 49	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 50	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 51	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 52	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 53	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 54	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 55	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 56	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 57	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 58	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 59	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 60	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 61	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 62	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 63	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 64	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 65	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 66	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 67	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 68	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 69	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 70	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 71	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 72	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 73	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 74	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 75	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 76	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 77	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 78	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 79	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 80	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 81	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 82	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 83	[DATA_NEEDED] — Pin function depends on datasheet pinout
Pino 84	[DATA_NEEDED] — Pin function depends on datasheet pinout

Aplicações típicas

PIC18C801T-I/L é adequado para 6 aplicaçãos: Industrial Automation Controllers, Consumer Electronics with External Firmware, Automotive Body and Chassis Control, Embedded Systems with Large External Code Spaces, Legacy Test and Measurement Equipment, Medical Device Controllers (Legacy).

🏭

Industrial Automation Controllers

The PIC18C801T-I/L suits industrial PLC interface modules and machine controllers that need more program space than on-chip flash can hold. The 25 MHz core and 4.2V-5.5V supply pair with the ROMless external memory bus, allowing systems to address large ladder-logic or recipe databases in external EPROM/flash. Industrial temperature rating -40°C to +85°C covers factory-floor cabinets, and the 84-pin PLCC J-lead package supports socketed field replacement on legacy lines still in service after 15+ years of operation.

Recomendado

📱

Consumer Electronics with External Firmware

The PIC18C801T-I/L fits consumer devices such as high-end audio controllers, washing-machine HMIs, and appliance motor controllers that require external program memory for localization variants. The ROMless parallel bus lets manufacturers store multiple language firmware images in external flash and select at boot. With 25 MHz throughput the part handles button-matrix scanning, LCD driving, and simple protocol stacks, while the 84-PLCC J-lead package simplifies through-hole-friendly surface-mount assembly for consumer appliance contract manufacturers.

Recomendado

PIC18C658T-I/PT · Microchip Technology PIC18C801-I/L · Microchip Technology

🚗

Automotive Body and Chassis Control

The PIC18C801T-I/L is used in automotive body-control modules, instrument clusters, and chassis controllers where PIC18C designs were qualified decades ago. The industrial -40°C to +85°C range covers cabin environments, and the 5V supply rails integrate with existing 12V->5V vehicle power trees. The 84-PLCC J-lead package tolerates the under-dash thermal environment and supports socketed service replacement. New automotive designs should target AEC-Q100 qualified parts, but the PIC18C801T-I/L keeps legacy platforms running until end-of-production.

Recomendado

PIC18C801T-I/PT · Microchip Technology DSPIC33EV64GM004T-I/PT · Microchip Technology

🧩

Embedded Systems with Large External Code Spaces

The PIC18C801T-I/L targets embedded systems needing program space beyond on-chip flash, such as protocol bridges, multi-language industrial HMIs, and firmware-update gateways. Its parallel external memory bus addresses up to 2 MB of external program memory, allowing in-field firmware upgrades stored in external flash. The 25 MHz core runs compressed protocol stacks and the 84-PLCC J-lead package simplifies PCB layout compared to QFP equivalents. Use this part when on-chip flash is too small and external memory is acceptable.

Recomendado

PIC18C601-I/PT · Microchip Technology DSPIC33EV64GM002-I/SO (Modern flash-based migration with 64 KB on-chip and upgrade path)

🔧

Legacy Test and Measurement Equipment

The PIC18C801T-I/L is found in legacy test and measurement instruments, lab data loggers, and bench-top analyzers designed in the late 1990s and 2000s. The ROMless architecture lets manufacturers ship multiple firmware personalities in external memory, and the 25 MHz core handles sensor sampling and display refresh cycles. The 84-PLCC J-lead package supports field-replaceable modules that technicians can swap without soldering. Sustainment programs for in-service T&M equipment rely on this part until modernization refresh cycles are funded.

Recomendado

PIC18C452T-I/PT · Microchip Technology PIC18C801-I/L · Microchip Technology

💊

Medical Device Controllers (Legacy)

The PIC18C801T-I/L appears in legacy medical device controllers and patient-monitoring peripherals that were designed and qualified before modern MCU migration cycles. The industrial temperature grade and 5V supply cover most clinical environments, and the ROMless external memory interface supports regulator-required firmware revision tracking stored externally. The 84-PLCC J-lead package enables socketed replacement during scheduled service. New medical designs should target modern PIC18F or dsPIC33 parts with current regulatory documentation.

Recomendado

DSPIC33EV64GM004T-I/PT · Microchip Technology PIC18C801T-I/PT · Microchip Technology

Resumo dos produtos recomendados

What is the maximum clock frequency of PIC18C801T-I/L?

The PIC18C801T-I/L operates at a maximum clock frequency of 25 MHz. According to Microchip datasheet references, the PIC18C core executes one instruction every four clock cycles, so 25 MHz delivers up to 6.25 MIPS under optimal conditions. This makes it suitable for industrial control loops and consumer applications that need moderate computational throughput with an external program memory interface.

What is the supply voltage range for PIC18C801T-I/L?

The PIC18C801T-I/L operates from a 4.2V to 5.5V single supply. According to the Microchip product listing, the device is rated for 5V nominal rails typical of PIC18C legacy systems. Designers must ensure the supply stays within this window; operation below 4.2V can cause oscillator instability or EEPROM write failures, while exceeding 5.5V may damage the device permanently.

Is the PIC18C801T-I/L still in production?

The PIC18C801T-I/L is listed as Not Recommended for New Designs (NRND) by Microchip. According to the verified product listing, parts remain available through distribution but Microchip recommends migrating to PIC18F or dsPIC33 family devices for new designs. Long-term supply is not guaranteed, so engineers should qualify a replacement now if the product is expected to ship for more than a few years.

What package does the PIC18C801T-I/L use?

The PIC18C801T-I/L uses an 84-pin PLCC (Plastic Leaded Chip Carrier) J-lead package measuring 29.31x29.31 mm. According to Microchip's package code QCCJ, the device has J-bend terminals suitable for surface-mount assembly and socket insertion. The "L" suffix in the part number designates the PLCC package, while the "T" suffix indicates tape-and-reel packaging.

Does PIC18C801T-I/L have on-chip program memory?

No, the PIC18C801T-I/L is a ROMless device that requires external program memory. According to the Microchip product family specification, the PIC18C801 connects to external EPROM, flash, or ROM over a parallel external memory bus. This makes it suitable for systems needing program spaces larger than typical on-chip flash, but it increases PCB complexity because address and data lines must be routed to an external memory device.

What is the operating temperature range of PIC18C801T-I/L?

The PIC18C801T-I/L operates from -40°C to +85°C, classified as industrial temperature grade. According to the verified product listing, this range covers most industrial, commercial, and automotive body-compartment environments. The "I" suffix in the part number designates the industrial temperature grade, distinguishing it from the automotive ("E") grade used in under-hood applications.

Where can I buy PIC18C801T-I/L online?

The PIC18C801T-I/L is available from authorized Microchip distributors including DigiKey, Mouser, and Microchip Direct. According to the verified distributor listings, the part is in stock at multiple authorized channels with qty-1 pricing around $13.50 as of 2026-09-26. Lead time for the tape-and-reel variant is typically 4-8 weeks from non-stocking distributors; sourcing from authorized channels helps avoid counterfeit risk.

What is the price of PIC18C801T-I/L?

The PIC18C801T-I/L lists at approximately $13.50 per unit at qty 1, with volume breaks down to about $8.50 at qty 1000 as of 2026-09-26. According to DigiKey distributor pricing captured in the verified data, the part carries a price premium typical of NRND legacy microcontrollers. Engineers evaluating total cost should also consider external memory and socket costs since the part is ROMless.

What is the lead time for PIC18C801T-I/L?

Lead time for the PIC18C801T-I/L is typically 4-8 weeks from authorized distributors as of 2026-09-26. According to current distributor listings, the part is NRND but still stocked; production orders may require longer lead times since Microchip is not actively recommending this part for new designs. Buyers should plan inventory buffers or qualify a PIC18F/dsPIC33 replacement to mitigate supply risk.

Is PIC18C801T-I/L in stock?

Yes, the PIC18C801T-I/L is in stock at multiple authorized distributors including DigiKey as of 2026-09-26. According to the verified product listings, the part shows active inventory at the 84-PLCC tape-and-reel packaging. Stock is finite because the part is NRND; designers should verify real-time availability with their distributor before placing production orders and qualify a replacement path.

PIC18C801T-I/L vs PIC18C801-I/L - what is the difference?

The PIC18C801T-I/L and PIC18C801-I/L differ only in packaging format: the "T" suffix indicates tape-and-reel delivery, while the non-T variant ships in tube. According to the FindIC comparison data, both parts share identical 84-PLCC die, 25 MHz clock, 4.2V-5.5V supply, industrial temperature grade, and ROMless architecture. They are fully interchangeable at the PCB level, so engineers can use whichever format matches their assembly process.

Can PIC18F46J11-I/PT replace PIC18C801T-I/L?

No, the PIC18F46J11-I/PT is not a drop-in replacement for the PIC18C801T-I/L because the packages differ: the original uses 84-PLCC while the PIC18F46J11 ships in 44-pin TQFP. According to the verified etei.com comparison, the PIC18F46J11 integrates 64 KB flash and operates at 48 MHz, but it would require a PCB redesign to migrate. The PIC18F46J11 is also pin-incompatible because the PLCC has 84 pins versus 44 on TQFP.

What is the best drop-in replacement for PIC18C801T-I/L?

The closest drop-in alternative to the PIC18C801T-I/L is the PIC18C801-I/L, which shares the same 84-PLCC package, 25 MHz clock, ROMless architecture, and 4.2V-5.5V supply; it only differs in tube packaging. According to the FindIC cross-reference, the part-to-part substitution is exact at the silicon level. For long-term supply, consider migrating to a pin-compatible PIC18F or dsPIC33 variant if Microchip publishes one in 84-PLCC.

When should I choose PIC18C801T-I/L over PIC18F alternatives?

Choose the PIC18C801T-I/L when you specifically need an external-memory 8-bit MCU with a parallel program bus and an installed 84-PLCC footprint. According to Microchip's product family positioning, PIC18C devices target designs that need program space beyond on-chip flash; PIC18F parts integrate flash and remove the external bus. If your design uses the external memory interface, the PIC18C801 is appropriate; otherwise, PIC18F is more cost-effective.

Is PIC18C801T-I/L suitable for industrial automation?

Yes, the PIC18C801T-I/L is suitable for industrial automation controllers, PLC interfaces, and HMI panels. According to the verified product listing, the device operates from -40°C to +85°C with a 4.2V-5.5V supply and a 25 MHz core, which covers most factory-floor environments. Engineers should however verify the RoHS status and consider migrating to a modern PIC18F or dsPIC33 part for new industrial designs.

Where to download PIC18C801T-I/L datasheet PDF?

The PIC18C801T-I/L datasheet PDF is available from Microchip's product page at microchip.com and from datasheet mirror sites such as datasheets.com. According to the verified web results, the official Microchip datasheet contains pinout, electrical characteristics, instruction set, and timing specifications. Always cross-check against the device errata sheet, which lists minor operational differences and recommended workarounds.

Dados de referência de engenharia para PIC18C801T-I/L — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose the PIC18C801T-I/L when you need an 8-bit RISC MCU with an external program memory bus in an 84-PLCC surface-mount package and your design is already qualified on the PIC18C platform. The part suits industrial automation, automotive body-control sustainment, and consumer appliances with multi-language firmware stored in external memory. Choose the PIC18C801-I/L if you prefer tube delivery for low-volume or socketed assembly; the silicon is identical. Choose the PIC18C452T-E/L if you can fit your code in on-chip EPROM and need extended temperature operation up to +125°C. For new designs, evaluate PIC18F or dsPIC33 modern replacements first because PIC18C parts are NRND and long-term supply is not guaranteed.

Comparação com alternativas

Parâmetro	Este produto	PIC18C801-I/L	PIC18C801T-I/PT	PIC18C658T-I/PT	PIC18C601-I/PT	PIC18C452T-E/L
Brand	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Package	84-PLCC (J-Lead)	84-PLCC (J-Lead) - same	84-PLCC (J-Lead) - same	84-PLCC (J-Lead) - same	84-PLCC (J-Lead) - same	84-PLCC (J-Lead) - same
Maximum Clock Frequency	25 MHz	25 MHz	25 MHz	25 MHz	25 MHz	40 MHz (PIC18C452 family)
Program Memory Type	ROMless (external bus)	ROMless (external bus)	ROMless (external bus)	ROMless (external bus)	ROMless (external bus)	On-chip EPROM
Supply Voltage	4.2 V to 5.5 V	4.2 V to 5.5 V	4.2 V to 5.5 V	4.2 V to 5.5 V	4.2 V to 5.5 V	4.2 V to 5.5 V
Operating Temperature	-40°C to +85°C (industrial)	-40°C to +85°C (industrial)	-40°C to +85°C (industrial)	-40°C to +85°C (industrial)	-40°C to +85°C (industrial)	-40°C to +125°C (extended)
Pin Count	84	84	84	84	84	84
Delivery Packaging	Tape & Reel	Tube	Tape & Reel	Tape & Reel	Tape & Reel	Tape & Reel
Lifecycle Status	NRND	NRND	NRND	NRND	NRND	NRND

Principais diferenciais

Identical silicon in tube packaging (vs PIC18C801-I/L)
External memory bus for large code spaces (vs PIC18C452T-E/L)
Industrial temperature grade coverage (vs PIC18C452T-E/L)

Notas de projeto

The PIC18C801T-I/L operates from a 4.2V to 5.5V supply; design the 5V rail with a linear regulator capable of at least 50 mA continuous current with adequate bulk decoupling (10 uF + 100 nF) on the Vdd pins. Because the part is ROMless, the external memory bus also draws supply current; budget 100-150 mA total for MCU plus external EPROM/flash. Add a power-on reset supervisor if the application needs deterministic startup, since legacy PIC18C devices have limited internal POR tolerance.

Route the external memory bus (address, data, and control lines) with matched trace lengths and a ground reference plane to avoid bus timing violations. Estimated bus timing: at 25 MHz with 4-clock instruction cycles, the external memory access window is approximately 160 ns; keep bus traces under 50 mm and add 22-33 ohm series termination on data lines if reflections appear on the scope. Place the external memory device adjacent to the PIC18C801T-I/L to minimize stub lengths and bus capacitance.

Do not assume the PIC18C801T-I/L is pin-compatible with newer PIC18F devices; PIC18C parts lack internal flash and rely on an external memory bus, so firmware migration to PIC18F requires both hardware and software rework. Always consult the Microchip PIC18C801 errata sheet before finalizing a design, since legacy silicon revisions occasionally have minor operational differences. For new designs, evaluate PIC18F or dsPIC33 alternatives first; reserve PIC18C801T-I/L for legacy sustainment only.

Informações de conformidade

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Qualified

Sem chumbo

Unknown

Sem halogênios

Unknown

Minerais de conflito

Unknown

RoHS, REACH, lead-free, halogen-free, and conflict-mineral status not present in the verified data; consult Microchip product page or PIC18C801 datasheet for current compliance declarations. Part is NRND per Microchip lifecycle policy and not AEC-Q100 qualified; PIC18C industrial grade is -40C to +85C only.

Dados verificados em: 2026-09-26 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

Fontes: Distributor, Distributor, Manufacturer Datasheet, Octopart, Distributor, Manufacturer Product Page

Buscas relacionadas

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Componentes & termos relacionados

Microchip Technology PIC18C801 PIC18C801T-I/L PIC18C801-I/L PIC18C452 PIC18F dsPIC33 PIC18C family 8-bit RISC microcontroller ROMless MCU external memory bus 84-pin PLCC J-Lead package QCCJ package code industrial temperature grade tape and reel packaging MIPS Harvard architecture NRND DigiKey Mouser Electronics Microchip Direct