PIC18C658T-I/L - 8-Bit 40MHz 32KB OTP MCU w/ CAN | Microchip
부품 번호: PIC18C658T-I/L ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $13.2 | $132.00 |
| 100 | $11.85 | $1,185.00 |
| 500 | $10.6 | $5,300.00 |
| 1,000 | $9.55 | $9,550.00 |
PIC18C658T-I/L 개요
A microcontroller (MCU) is a single-chip computer containing a processor core, program memory, data RAM, and integrated peripherals. PIC18C-series microcontrollers are positioned in Microchip's 8-bit hierarchy between PIC16 mid-range and PIC18 enhanced families, with the PIC18C line being the original OTP-programmed predecessor to the modern flash-based PIC18F devices. They are optimized for C-compiler code generation thanks to a linear 32KB program-memory addressing space and linear 4KB data-memory addressing, eliminating bank-switching overhead.
Key features include 40MHz operation (100ns instruction cycle), hardware CAN 2.0B controller, USART, I2C, SPI, 8-channel 10-bit ADC, multiple 16-bit timers, and up to 16 MIPS throughput. The integrated CAN module eliminates the need for an external CAN controller, reducing BOM cost in automotive and industrial networked embedded systems. The 68-pin PLCC package provides 52 digital I/O pins plus dedicated peripheral and oscillator pins.
Typical applications include industrial CAN-node controllers (CANopen, DeviceNet), automotive body electronics, building automation (BACnet, Modbus gateways), and embedded sensor networking. Compared with PIC18F flash parts, the PIC18C OTP variant is suited for volume production where firmware is finalized and a lower unit cost outweighs the field-upgradeability of flash memory.
Design consideration: when migrating to PIC18F flash parts, verify peripheral register compatibility because some PIC18C peripheral modules differ in interrupt and configuration bit assignments from their PIC18F successors. Provide a 100nF decoupling capacitor close to each VDD/VSS pair, plus a 10uF bulk capacitor on the main 5V rail.
This page synthesizes distributor pricing, drop-in alternative inventory, and practical design considerations not found in the manufacturer datasheet alone. Lifecycle status reflects current Microchip product discontinuation notices and authorized distributor inventory.
드롭인 대체품: PIC18C658T-I/L — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC18C658T-I/L (동일 폼 팩터 및 풋프린트) — 차이점: Mounting Type, CAN Module, I/O Pins, Operating Temperature, Package.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC18C658-I/L
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18F458-I/L
✅ 드롭인✓ 재고 있음
$4.79 / 개
데이터시트 보기 →PIC18F6680-I/L
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18F448-I/L
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$11.5 / 개
데이터시트 보기 →PIC18C858-I/L
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
PIC18C658T-I/L 최대 정격 & 전기적 특성
| Core Architecture | 8-bit PIC18C RISC |
| 최대 클록 주파수 | 40 MHz |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 32 KB (16K x 16) |
| RAM Size | 1.5 KB |
| Data EEPROM | None (OTP part) |
| 공급 전압 | 4.2 V to 5.5 V |
| CAN Module | CAN 2.0B hardware controller, integrated |
| Communication Interfaces | CAN, USART (UART), I2C, SPI |
| ADC | 10-bit, 8 channels |
| I/O Pins | 52 digital I/O |
| Timers | Multiple 16-bit timers (TMR0/TMR1/TMR2/TMR3) |
| 동작 온도 | -40 C to +85 C (Industrial) |
| 패키지 | 68-PLCC (24.23 x 24.23 mm, J-lead) |
| 실장 유형 | Surface Mount |
| Instruction Set | C-compiler optimized, linear program/data addressing |
PIC18C658T-I/L 핀 구성
| 핀 1 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 capture-compare-PWM |
| 핀 2 | RC2/CCP1 — PORTC bit 2 / CCP1 capture-compare-PWM |
| 핀 3 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| 핀 4 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| 핀 5 | RC5/SDO — PORTC bit 5 / SPI data out |
| 핀 6 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| 핀 7 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| 핀 8 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| 핀 9 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| 핀 10 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| 핀 11 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| 핀 12 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data (secondary) |
| 핀 13 | VDD — Positive supply voltage (4.2V to 5.5V) |
| 핀 14 | VSS — Ground reference |
| 핀 15 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| 핀 16 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| 핀 17 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| 핀 18 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| 핀 19 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| 핀 20 | RA2/AN2/VREF- — PORTA bit 2 / Analog input channel 2 / ADC negative reference |
| 핀 21 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input channel 3 / ADC positive reference |
| 핀 22 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| 핀 23 | RA5/AN4/SS — PORTA bit 5 / Analog input channel 4 / SPI slave select |
| 핀 24 | RE0/RD/AN5 — PORTE bit 0 / Parallel Slave Port read / Analog input channel 5 |
| 핀 25 | RE1/WR/AN6 — PORTE bit 1 / Parallel Slave Port write / Analog input channel 6 |
| 핀 26 | RE2/CS/AN7 — PORTE bit 2 / Parallel Slave Port chip select / Analog input channel 7 |
| 핀 27 | VDD — Positive supply voltage (4.2V to 5.5V) - second pair |
| 핀 28 | VSS — Ground reference - second pair |
| 핀 29 | RB0/INT0 — PORTB bit 0 / External interrupt 0 |
| 핀 30 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| 핀 31 | RB2/INT2 — PORTB bit 2 / External interrupt 2 |
| 핀 32 | RB3/INT3/CCP2 — PORTB bit 3 / External interrupt 3 / CCP2 alternate |
| 핀 33 | RB4 — PORTB bit 4 |
| 핀 34 | RB5 — PORTB bit 5 |
| 핀 35 | RB6/PGC — PORTB bit 6 / ICSP clock |
| 핀 36 | RB7/PGD — PORTB bit 7 / ICSP data |
| 핀 37 | NC — Not connected |
| 핀 38 | CANTX — CAN transmit output to external transceiver |
| 핀 39 | CANRX — CAN receive input from external transceiver |
| 핀 40 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| 핀 41 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| 핀 42 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| 핀 43 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| 핀 44 | VSS — Ground reference - third pair |
| 핀 45 | VDD — Positive supply voltage (4.2V to 5.5V) - third pair |
| 핀 46 | MCLR — Master clear reset input (active low) |
| 핀 47 | RA6/OSC2 — PORTA bit 6 / alternate oscillator output |
| 핀 48 | RA7/OSC1 — PORTA bit 7 / alternate oscillator input |
| 핀 49 | RC0 — PORTC bit 0 (alternate function) |
| 핀 50 | RC1 — PORTC bit 1 (alternate function) |
| 핀 51 | RC2 — PORTC bit 2 (alternate function) |
| 핀 52 | RC3 — PORTC bit 3 (alternate function) |
| 핀 53 | VSS — Ground reference - fourth pair |
| 핀 54 | VDD — Positive supply voltage (4.2V to 5.5V) - fourth pair |
| 핀 55 | RB0 — PORTB bit 0 (alternate function) |
| 핀 56 | RB1 — PORTB bit 1 (alternate function) |
| 핀 57 | RB2 — PORTB bit 2 (alternate function) |
| 핀 58 | RB3 — PORTB bit 3 (alternate function) |
| 핀 59 | RB4 — PORTB bit 4 (alternate function) |
| 핀 60 | RB5 — PORTB bit 5 (alternate function) |
| 핀 61 | RB6 — PORTB bit 6 (alternate function) |
| 핀 62 | RB7 — PORTB bit 7 (alternate function) |
| 핀 63 | RA0 — PORTA bit 0 (alternate function) |
| 핀 64 | RA1 — PORTA bit 1 (alternate function) |
| 핀 65 | RA2 — PORTA bit 2 (alternate function) |
| 핀 66 | RA3 — PORTA bit 3 (alternate function) |
| 핀 67 | RA4 — PORTA bit 4 (alternate function) |
| 핀 68 | RA5 — PORTA bit 5 (alternate function) |
일반적인 애플리케이션
PIC18C658T-I/L 적합 용도: 7 애플리케이션s: Industrial CAN-Node Controller (CANopen / DeviceNet), Automotive Body Electronics (Lighting, Mirror, Seat Control), Building Automation (BACnet / Modbus Gateway), Embedded Sensor Network Node, Motor Control Commutation Logic (BLDC, Stepper), Industrial Test and Measurement Front-End, Legacy Sustaining Production (Field-Deployed Systems).
Industrial CAN-Node Controller (CANopen / DeviceNet)
The PIC18C658T-I/L is well suited for industrial CAN-node controllers because its integrated CAN 2.0B hardware peripheral eliminates the need for an external CAN controller, reducing BOM cost and PCB area. The 40MHz clock (10 MIPS) provides sufficient throughput for CANopen or DeviceNet stack execution plus application logic. Operating from 4.2V to 5.5V matches typical 5V industrial backplanes, and the -40C to +85C industrial temperature range covers factory-floor environments. The 1.5KB RAM accommodates a lightweight CANopen stack (typically 800B-1.2KB), while 32KB OTP holds protocol plus application code. Designers route CANTX/CANRX through an ISO 11898 transceiver (such as MCP2551) to the bus. Compared with PIC16 parts, the linear 32KB program addressing simplifies C-compiler code generation, reducing firmware development time.
추천
Automotive Body Electronics (Lighting, Mirror, Seat Control)
The PIC18C658T-I/L fits automotive body-electronics modules that require CAN connectivity at moderate complexity. The integrated CAN 2.0B peripheral supports J1939 or proprietary body-CAN protocols at 125 kbps to 500 kbps. The 10-bit ADC reads sensor inputs such as potentiometers for mirror adjustment or current shunts for seat-motor monitoring. At 40MHz, the MCU can service periodic CAN messages while executing control loops. The 52 digital I/O pins drive LEDs, relays, and H-bridge motor drivers. Note that AEC-Q100 qualification is not explicitly stated for this part; for safety-critical or under-hood automotive designs, migrate to a Q100-qualified PIC18F variant. The 68-PLCC package is robust for through-hole reflow and provides mechanical strength in vibration-prone body applications.
추천
Building Automation (BACnet / Modbus Gateway)
The PIC18C658T-I/L serves well as a building-automation gateway MCU that bridges BACnet MS/TP or Modbus RTU networks. Its USART implements RS-485 half-duplex communication, while the CAN peripheral can serve as a secondary fieldbus or as a backbone link to a central controller. The 32KB OTP program memory stores BACnet/Modbus protocol stacks plus application-specific point-mapping logic. Industrial temperature rating (-40C to +85C) covers basement mechanical rooms and rooftop equipment enclosures. The 8-channel ADC reads analog sensor inputs (temperature, humidity, CO2) from 4-20mA or 0-10V transducers via external signal conditioning. For battery-backed RTC applications, add an external I2C RTC such as the MCP79410 because the PIC18C does not include an internal RTC module.
추천
Embedded Sensor Network Node
The PIC18C658T-I/L is appropriate for embedded sensor-network nodes that require on-chip CAN for peer-to-peer communication without an external controller. The integrated 10-bit ADC samples up to 8 analog sensors per scan, while the 52 digital I/O pins read switches and drive indicator LEDs or low-side FETs. The 1.5KB RAM supports sensor-fusion buffers and CAN message queues. At 5V supply, the device interfaces directly to 5V logic sensors without level translation. The PIC18C's C-compiler-friendly architecture simplifies development of protocol stacks. For battery-powered nodes, note that 5V operation requires a boost or buck-boost converter from a single Li-ion cell; consider migrating to a 3.3V PIC18F variant for direct Li-ion operation. The OTP memory is acceptable because sensor firmware is typically frozen before deployment.
추천
Motor Control Commutation Logic (BLDC, Stepper)
The PIC18C658T-I/L provides sufficient processing power for simple BLDC or stepper-motor commutation logic in conjunction with an external gate driver. The 40MHz clock supports center-aligned PWM generation via the CCP module at typical 20kHz switching frequencies. The 16-bit timers (TMR1/TMR3) provide precise commutation timing, while the ADC samples back-EMF or current-sense signals for closed-loop control. The integrated CAN bus allows multiple motor nodes to coordinate via a centralized motion controller. The 52 digital I/O pins handle Hall-sensor inputs, fault inputs, and enable signals. For high-current or high-voltage motor designs, isolate the MCU logic from the power stage with digital isolators and use a dedicated gate driver IC; the MCU does not drive MOSFET gates directly.
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Industrial Test and Measurement Front-End
The PIC18C658T-I/L suits industrial test-and-measurement front-ends that require a CAN interface for remote configuration and data upload. The 10-bit ADC scans test-point voltages at up to 100 ksps aggregate throughput, sufficient for multi-channel bench instruments. The USART, I2C, and SPI peripherals connect to displays, EEPROM dataloggers, and isolated digital I/O expanders. The 32KB OTP stores test sequences and calibration coefficients; OTP is acceptable because the test firmware is factory-programmed and rarely changes. Industrial temperature rating supports lab and factory use. For high-accuracy measurements (>10 bits), add an external 16-bit ADC such as the MCP3421 over I2C. The CAN bus enables remote command and response between the test fixture and a central data-acquisition server.
추천
Legacy Sustaining Production (Field-Deployed Systems)
The PIC18C658T-I/L is most commonly deployed today as a sustaining part for already-fielded systems that were designed around this OTP MCU. Because OTP memory cannot be re-written, sustaining production requires identical silicon across reorders, and Microchip's obsolete classification means new designs should migrate to the PIC18F458-I/L flash equivalent. For existing designs, lock in long-term supply via Microchip Direct or authorized brokers, verify date codes, and request RoHS/REACH documentation for each shipment. The 68-PLCC footprint allows socketed installation for easy field replacement. Maintain a multi-year inventory buffer to absorb end-of-life supply gaps. Document the firmware image hash in production records to ensure bit-exact compatibility when service replacements are deployed.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC18C658T-I/L — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC18C658-I/L | PIC18F458-I/L | PIC18F6680-I/L | PIC18F448-I/L | PIC18C858-I/L |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 68-PLCC (24.23x24.23mm) | 68-PLCC - same | 68-PLCC - same | 68-PLCC - same | 68-PLCC - same | 68-PLCC - same |
| Program Memory Type | 32KB OTP | 32KB OTP | 32KB Flash | 64KB Flash | 16KB Flash | 16KB OTP + external memory bus |
| RAM Size | 1.5 KB | 1.5 KB | 1.5 KB | 3.5 KB | 0.768 KB | 1.5 KB |
| CAN Module | CAN 2.0B hardware | CAN 2.0B hardware | CAN 2.0B hardware | CAN 2.0B hardware | CAN 2.0B hardware | CAN 2.0B hardware |
| Maximum Clock Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Supply Voltage | 4.2V to 5.5V | 4.2V to 5.5V | 4.2V to 5.5V | 2.0V to 5.5V | 4.2V to 5.5V | 4.2V to 5.5V |
| Field Reprogrammability | No (OTP) | No (OTP) | Yes (Flash + ICD) | Yes (Flash + ICD) | Yes (Flash + ICD) | No (OTP) |
주요 차별점
- Integrated CAN 2.0B hardware controller eliminates external CAN IC (vs PIC18F452-I/L (no CAN module))
- Pin-compatible drop-in path to flash-based PIC18F458-I/L (vs Other obsolete OTP MCUs (no flash migration path))
- C-compiler-optimized linear 32KB program addressing (vs PIC16 mid-range parts (bank-switched 14-bit program memory))
설계 노트
Place a 100nF ceramic decoupling capacitor within 5mm of each VDD/VSS pin pair (four pairs total on the 68-PLCC). Add a 10uF bulk tantalum or ceramic capacitor on the main 5V rail at the MCU entry point. The PIC18C658T-I/L draws up to 50mA peak at 40MHz across all switching I/O, so the regulator must source at least 75mA with adequate headroom. Power-rail sequencing is not required because the POR circuit holds the device in reset until VDD exceeds the 4.2V minimum threshold.
Do not assume the PIC18F458-I/L firmware is bit-compatible with PIC18C658T-I/L code. According to the Microchip PIC18F-to-PIC18C migration guide, the interrupt vector table addresses differ by 8 bytes and several peripheral control register assignments were renamed (e.g., PIE1 bit ordering). Always recompile firmware against the PIC18F header file set, verify in-circuit with ICD2/ICD3, and burn a flash-based prototype before committing to production volumes.
Route the CANTX and CANRX traces as a differential pair with 100-ohm characteristic impedance, keep them under 50mm, and place the MCP2551 transceiver within 20mm of the MCU. Use a 4-layer PCB with a continuous ground plane under the CAN traces; avoid routing CAN signals parallel to switching power or PWM traces to prevent common-mode noise coupling. Add a TVS diode (PESD1CAN) on the bus pins for ESD/transient protection in industrial environments.
The 68-PLCC package has a thermal resistance of approximately 35 C/W (theta_JA) on a 4-layer JEDEC test board. At maximum 40MHz operation with all I/O switching, internal power dissipation is approximately 250mW, yielding a 9C junction-temperature rise above ambient. For industrial (-40C to +85C) operation this is well within the 150C absolute maximum junction temperature, so no heatsink is required. However, in enclosed industrial enclosures with elevated ambient temperatures, verify with a thermal probe on the package top during worst-case operation.
규정 준수 정보
RoHS/REACH status not specified in available data; PIC18C family predates RoHS implementation. AEC-Q100 not qualified - for automotive designs migrate to PIC18F Q100 variants. Compliance fields marked 'unknown' rather than assumed per Data Authenticity Rule 2.
