PIC18LC658T-I/L - 8-Bit MCU 32KB OTP CAN PLCC-68 | Microchip
Référence : PIC18LC658T-I/L ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.45 | $18,45 |
| 10 | $16.9 | $169,00 |
| 100 | $15.05 | $1 505,00 |
| 500 | $13.4 | $6 700,00 |
| 1 000 | $11.85 | $11 850,00 |
| 3 000 | $10.5 | $31 500,00 |
PIC18LC658T-I/L Présentation
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, and peripherals onto one die. The PIC18 family specifically uses a modified Harvard RISC architecture with 16-bit opcodes and 8-bit data paths, sitting in Microchip's hierarchy of PIC10/12/16/18/24/32 families and the broader 8-bit MCU class. PIC18C variants historically targeted CAN-based industrial and automotive networking because they pair the PIC18 core with a hardware CAN controller - significant when serial protocols such as SPI, I2C, and UART (USART) cannot meet deterministic real-time bus requirements. CAN remains widely used in industrial automation, sensor instrumentation, and automotive body/comfort networking.
Key features include 52 digital I/O pins, an 8-channel 10-bit ADC, two 8-bit plus two 16-bit timers (4 timers total), one 16-bit capture/compare/PWM module, a hardware CAN 2.0B controller, and four interrupt sources. The Harvard bus provides separate 16-bit program and 8-bit data paths for deterministic execution, while the OTP program memory allows rapid prototyping for engineers refining code in late development stages. Industrial-grade operating range, low power consumption, and peripheral integration target automotive, instrumentation, and consumer markets.
The device is fabricated on a non-volatile CMOS process optimized for code-density and power efficiency. The integrated CAN module supports standard 11-bit and extended 29-bit identifiers, plus acceptance filters that offload message filtering from the CPU. The PIC18 instruction set is C-compiler optimized, allowing code development in high-level C while still achieving the deterministic timing the architecture is known for.
Typical applications include CAN-based industrial sensor networks, HVAC control modules, automotive body-control and body-comfort networks, building automation gateways, and embedded instrumentation. Its 32 KB OTP memory suits programs sized around 24-26 KB C-source compiled code. Design engineers also deploy it in legacy systems, transportation equipment, and instrumentation requiring CAN 2.0B hardware but minimal software complexity.
Key design considerations include budgeting interrupt latency for CAN message handling and ensuring the PLCC-68 socket or reflow profile matches standard JEDEC J-leaded pads. The industrial temperature range covers most outdoor and factory-floor requirements but excludes AEC-Q100 automotive Grade-1 applications - choose the PIC18F6585 automotive variant for AEC-Q100 qualified designs.
This page synthesizes distributor pricing, datasheet specs, drop-in same-family alternatives, and practical engineering notes not all present in the standalone datasheet.
Alternatives de remplacement direct pour PIC18LC658T-I/L — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC18LC658T-I/L (même facteur de forme et même empreinte) — différant par CAN Module, Communication Interfaces, Operating Temperature, Program Memory Type, Timers.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F6585-I/L
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F6585T-I/L
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18C658T-I/L
✅ Remplacement direct✓ En stock
$9.55 / unité
Voir la fiche technique →PIC18C658-I/L
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F6680-I/L
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18LC658T-I/L Valeurs maximales et caractéristiques électriques
| Manufacturer | Microchip Technology |
| Series | PIC 18C |
| Core Processor | PIC |
| Core Size | 8-Bit |
| Program Memory Type | OTP |
| Program Memory Size | 32 KB (16K x 16) |
| RAM Size | 1.5 KB |
| Data Memory Addressing | Linear up to 4 Kbytes |
| Maximum Clock Speed | 40 MHz (10 MIPS) |
| Supply Voltage (Vcc/Vdd) | 3.0 V to 5.5 V |
| Number of I/O Pins | 52 |
| Boîtier / Format | 68-PLCC (24.23 x 24.23 mm) |
| Température de fonctionnement | -40 °C to +85 °C (Industrial) |
| A/D Channels x Resolution | 8 x 10-bit |
| Communication Interfaces | CAN, I2C, SPI, UART/USART |
| CAN Module | CAN 2.0B (hardware, 11-bit/29-bit identifiers) |
| Timers | 2 x 8-bit + 2 x 16-bit |
| Type de montage | Surface Mount |
| IC Type | High-performance MCU with CAN module |
Configuration des broches de PIC18LC658T-I/L
| Broche 1 | NC — Not connected (per datasheet) |
| Broche 2 | RB0/INT0 — Digital I/O port B bit 0 / External interrupt 0 |
| Broche 3 | RB1/INT1 — Digital I/O port B bit 1 / External interrupt 1 |
| Broche 4 | RB2/INT2/CANTX — Digital I/O port B bit 2 / External interrupt 2 / CAN TX |
| Broche 5 | RB3/CANRX — Digital I/O port B bit 3 / CAN RX |
| Broche 6 | RB4 — Digital I/O port B bit 4 (interrupt-on-change) |
| Broche 7 | RB5 — Digital I/O port B bit 5 (interrupt-on-change) |
| Broche 8 | RB6/PGC — Digital I/O port B bit 6 / ICSP clock (programming) |
| Broche 9 | RB7/PGD — Digital I/O port B bit 7 / ICSP data (programming) |
| Broche 10 | VSS — Ground reference |
| Broche 11 | VDD — Positive supply voltage (3.0-5.5 V for 'LC' variant) |
| Broche 12 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| Broche 13 | OSC2/CLKOUT — Crystal oscillator output / clock output |
| Broche 14 | RA0/AN0 — Digital I/O port A bit 0 / Analog input channel 0 |
| Broche 15 | RA1/AN1 — Digital I/O port A bit 1 / Analog input channel 1 |
| Broche 16 | RA2/AN2 — Digital I/O port A bit 2 / Analog input channel 2 |
| Broche 17 | RA3/AN3 — Digital I/O port A bit 3 / Analog input channel 3 |
| Broche 18 | RA4/TOCKI — Digital I/O port A bit 4 / Timer0 clock input |
| Broche 19 | RA5/AN4 — Digital I/O port A bit 5 / Analog input channel 4 |
| Broche 20 | AVDD — Analog supply voltage (ADC reference) |
| Broche 21 | AVSS — Analog ground (ADC reference) |
| Broche 22 | RC0/T1OSO/T1CKI — Digital I/O port C bit 0 / Timer1 oscillator output / Timer1 clock input |
| Broche 23 | RC1/T1OSI/CCP2 — Digital I/O port C bit 1 / Timer1 oscillator input / Capture-Compare-PWM 2 |
| Broche 24 | RC2/CCP1 — Digital I/O port C bit 2 / Capture-Compare-PWM 1 |
| Broche 25 | RC3/SCK/SCL — Digital I/O port C bit 3 / SPI clock / I2C clock |
| Broche 26 | RC4/SDI/SDA — Digital I/O port C bit 4 / SPI data in / I2C data |
| Broche 27 | RC5/SDO — Digital I/O port C bit 5 / SPI data out |
| Broche 28 | RC6/TX/CK — Digital I/O port C bit 6 / USART async TX / USART sync clock |
| Broche 29 | RC7/RX/DT — Digital I/O port C bit 7 / USART async RX / USART sync data |
| Broche 30 | RD0/PSP0 — Digital I/O port D bit 0 / Parallel Slave Port bit 0 |
| Broche 31 | RD1/PSP1 — Digital I/O port D bit 1 / Parallel Slave Port bit 1 |
| Broche 32 | RD2/PSP2 — Digital I/O port D bit 2 / Parallel Slave Port bit 2 |
| Broche 33 | RD3/PSP3 — Digital I/O port D bit 3 / Parallel Slave Port bit 3 |
| Broche 34 | RD4/PSP4 — Digital I/O port D bit 4 / Parallel Slave Port bit 4 |
| Broche 35 | RD5/PSP5 — Digital I/O port D bit 5 / Parallel Slave Port bit 5 |
| Broche 36 | RD6/PSP6 — Digital I/O port D bit 6 / Parallel Slave Port bit 6 |
| Broche 37 | RD7/PSP7 — Digital I/O port D bit 7 / Parallel Slave Port bit 7 |
| Broche 38 | RE0/RD — Digital I/O port E bit 0 / Parallel Slave Port read control |
| Broche 39 | RE1/WR — Digital I/O port E bit 1 / Parallel Slave Port write control |
| Broche 40 | RE2/CS — Digital I/O port E bit 2 / Parallel Slave Port chip select |
| Broche 41 | VSS — Ground reference |
| Broche 42 | VDD — Positive supply voltage (3.0-5.5 V) |
| Broche 43 | RF0 — Digital I/O port F bit 0 |
| Broche 44 | RF1 — Digital I/O port F bit 1 |
| Broche 45 | RF2 — Digital I/O port F bit 2 |
| Broche 46 | RF3 — Digital I/O port F bit 3 |
| Broche 47 | RF4 — Digital I/O port F bit 4 |
| Broche 48 | RF5 — Digital I/O port F bit 5 |
| Broche 49 | RF6 — Digital I/O port F bit 6 |
| Broche 50 | RF7 — Digital I/O port F bit 7 |
| Broche 51 | RG0 — Digital I/O port G bit 0 |
| Broche 52 | RG1 — Digital I/O port G bit 1 |
| Broche 53 | RG2 — Digital I/O port G bit 2 |
| Broche 54 | RG3 — Digital I/O port G bit 3 |
| Broche 55 | RG4 — Digital I/O port G bit 4 |
| Broche 56 | NC — Not connected (per datasheet) |
| Broche 57 | NC — Not connected (per datasheet) |
| Broche 58 | NC — Not connected (per datasheet) |
| Broche 59 | NC — Not connected (per datasheet) |
| Broche 60 | NC — Not connected (per datasheet) |
| Broche 61 | NC — Not connected (per datasheet) |
| Broche 62 | NC — Not connected (per datasheet) |
| Broche 63 | MCLR/VPP — Master Clear reset (active low) / Programming voltage input |
| Broche 64 | RA6 — Digital I/O port A bit 6 (alternate oscillator) |
| Broche 65 | RA7 — Digital I/O port A bit 7 (alternate oscillator) |
| Broche 66 | VSS — Ground reference |
| Broche 67 | VDD — Positive supply voltage (3.0-5.5 V) |
| Broche 68 | NC — Not connected (per datasheet) |
Applications typiques
PIC18LC658T-I/L convient pour 7 applications: CAN-Based Industrial Sensor Networks, HVAC Control Modules, Automotive Body-Control Network Nodes, Building Automation Gateways, Embedded Industrial Instrumentation, Legacy Transportation and Utility Systems, Consumer Appliance with CAN Networking.
CAN-Based Industrial Sensor Networks
The PIC18LC658T-I/L is purpose-built for CAN 2.0B sensor nodes on industrial fieldbuses. Its hardware CAN controller handles 11-bit and 29-bit identifiers at bus speeds up to 1 Mbps, offloading message filtering from the CPU via acceptance filters, while 32 KB of OTP accommodates 24-26 KB compiled C code. With 40 MHz core speed and 52 I/O pins, the device can drive sensor analog front-ends, process values via its 10-bit ADC, and publish telemetry at 100-500 Hz frame rates typical of CANopen or DeviceNet networks.
Recommandé
HVAC Control Modules
For commercial HVAC control, the PIC18LC658T-I/L mixes analog sensing (8-channel 10-bit ADC for temperature, humidity, and pressure) with PWM actuator drive and CAN networking to a central building controller. The 32 KB of OTP supports control-loop code with multiple state machines per zone, while four timers (two 8-bit plus two 16-bit) provide time-proportioned outputs for triac-fired heater stages and variable-speed fan control. The industrial -40 to +85 °C range covers rooftop unit enclosures.
Recommandé
Automotive Body-Control Network Nodes
Although not AEC-Q100 qualified, the PIC18LC658T-I/L has historically powered non-safety automotive body nodes such as door modules, seat controllers, mirror actuators, and lighting controllers. Its CAN 2.0B interface talks to the vehicle's body CAN bus at 125-500 kbps while the 52 I/O drive relays, PWM motor control, and LED strings. The 32 KB OTP sized approximately 24-26 KB compiled C, sufficient for state machines, fault logging, and diagnostics required by J1939 or GMLAN protocols.
Recommandé
Building Automation Gateways
The PIC18LC658T-I/L serves as a low-cost gateway between legacy RS-485 / Modbus field wiring and modern CAN-bus based BMS segments. Using its UART/SPI/I2C peripherals to talk to Modbus RTU slaves plus hardware CAN to the central controller, a 32 KB OTP can hold bridging logic and protocol translation tables. The 52 I/O provide flexibility for local override switches, status LEDs, and analog sensor aggregation at the gateway edge.
Recommandé
Embedded Industrial Instrumentation
Engineers deploy the PIC18LC658T-I/L in test-stands, process instrumentation, and laboratory data-acquisition where an integrated CAN interface eliminates the board space of an external controller. The 8-channel 10-bit ADC, two capture/compare modules, and 4 timers handle signal conditioning and timing measurements; the 32 KB OTP holds lookup tables for sensor linearization. Industrial temperature grade supports factory-floor chassis deployments without additional thermal validation.
Recommandé
Legacy Transportation and Utility Systems
Many rail signaling, agricultural equipment, and utility telemetry systems already include Microchip PIC18C658 nodes for CAN communication; the PIC18LC658T-I/L serves as a factory-original replacement when field units need board repair and the original part is no longer available. The same 68-PLCC footprint and PIC18C658 register set ensure drop-in replacement of legacy nodes without firmware changes, preserving the customer-installed base while operators migrate to the PIC18F6585 on new units.
Recommandé
Consumer Appliance with CAN Networking
Premium smart appliances increasingly use CAN to interconnect main controller, user-interface board, motor-drive board, and sensor modules. The PIC18LC658T-I/L fits low-cost appliance nodes (e.g., washing machine subcontroller) where its 32 KB OTP covers state-machine code, 10-bit ADC reads sensor inputs, and CAN 2.0B exchanges status with the main board. Its industrial temperature range exceeds typical residential appliance requirements by ample margin.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18LC658T-I/L — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F6585-I/L | PIC18C658T-I/L | PIC18F6680-I/L |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 68-PLCC | 68-PLCC | 68-PLCC | 68-PLCC |
| Program Memory Type | OTP | Flash | OTP | Flash |
| Program Memory Size | 32 KB | 32 KB (Flash) | 32 KB (OTP) | 16 KB |
| Maximum Clock Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Voltage (LC vs F suffix) | 2.5 V to 5.5 V (LC) | 4.2 V to 5.5 V (F) | 4.2 V to 5.5 V (standard C) | 2.0 V to 5.5 V (F) |
| CAN Module | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B + enhanced filters |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C (I grade) | -40 °C to +85 °C | -40 °C to +85 °C |
| Number of I/O Pins | 52 | 52 | 52 | 52 |
Principaux différenciateurs
- Integrated hardware CAN 2.0B controller eliminates external CAN chip (vs PIC18F258 (non-CAN PIC18 sibling))
- Low-voltage 2.5-5.5 V operating range supports battery-backed designs (vs PIC18C658 (4.2-5.5 V 'C' variant))
- 32 KB OTP memory sizes for production CAN-only firmware (vs PIC18C858 (larger 64 KB OTP version))
- Industrial -40 to +85 °C temperature grade spans factory and outdoor cabinet deployments (vs PIC18C658 commercial (0 to +70 °C))
Notes de conception
PIC18LC658T-I/L is OTP-based - once programmed it cannot be re-flashed. Budget two or three engineering samples during development so firmware revision cycles do not consume final units. For products with field-revisionable firmware, choose PIC18F6585-I/L on the same 68-PLCC footprint. Verify jumper settings for ICSP (PGC/PGD on RB6/RB7) before final programming; a wrong MCLR pull-up prevents code download silently.
Estimated: at 40 MHz and 5 V supply, ICC active is approximately 15 mA, but with CAN module, ADC, and timers active in a typical sensor-node application this rises to 25 mA. The 'LC' (low-voltage) variant supports down to 2.5 V for battery-backed designs; if the supply rail drops below 4.2 V in the field, the LC part continues operating while the standard PIC18C658 simply resets. Add a 100 nF decoupling cap close to every VDD/VSS pair and a 10 µF bulk cap at the board input.
The 68-PLCC J-leaded package requires a JEDEC-standard PLCC-68 socket for prototype swap-out or a reflow profile compatible with J-leads (peak 235-245 °C, 60-90 sec above 220 °C). Keep-out clearance below the J-lead bend must be at least 0.5 mm so the lead bends are not over-strained during IR or forced-air reflow. For rugged environments consider a through-hole socket that absorbs mechanical stress from vibration or thermal cycling.
When using the on-chip CAN module, the CANTX/CANRX pins (RB2/RB3) require a sloped edge to meet CAN bus timing. Place a 120 Ω termination resistor at each end of the bus (and only at each end) per ISO 11898. With an MCP2551 transceiver, expect bus errors if total stub length exceeds 0.3 m at 1 Mbps; use a slower bit rate (125-500 kbps) for long cable assemblies or industrial fieldbus topologies.
Estimated: the device's 10-bit ADC can resolve approximately 5 mV at a 5 V reference, so analog and digital grounds should return through separate vias tied at the package's AVSS pin to avoid digital switching noise. Place the analog inputs on the opposite side of the board from switching regulators and clock-driver outputs. Connect AVSS to the same ground plane as VSS through a single 0 Ω resistor or bead for high-resolution sampling.
Informations de conformité
Lifecycle status: obsolete as of 2026-09-28. RoHS and lead-free compliance should be verified per the lot-specific certificate of conformance; the part is industrial temperature grade only and is not AEC-Q100 qualified for automotive.
