PIC18C658T-I/L - 8-Bit 40MHz 32KB OTP MCU w/ CAN | Microchip
MPN: PIC18C658T-I/L ✗ Akhir HidupPIC18C658T-I/L Ringkasan
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.
Alternatif penggantian untuk PIC18C658T-I/L — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian PIC18C658T-I/L (sama faktor bentuk dan footprint) — berbeda di dalam Mounting Type, CAN Module, I/O Pins, Operating Temperature, Package.
PIC18C658-I/L
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
PIC18F458-I/L
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC18F6680-I/L
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
PIC18F448-I/L
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC18C858-I/L
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
PIC18C658T-I/L Rating Maksimal & Karakteristik Listrik
| Core Architecture | 8-bit PIC18C RISC |
| Frekuensi Bawah Maximum | 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) |
| Tegangan Pemuat | 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) |
| Suhu Kerja | -40 C to +85 C (Industrial) |
| Paket | 68-PLCC (24.23 x 24.23 mm, J-lead) |
| Tipe Mounting | Surface Mount |
| Instruction Set | C-compiler optimized, linear program/data addressing |
Konfigurasi Pin PIC18C658T-I/L
| Pin produk 1 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 capture-compare-PWM |
| Pin produk 2 | RC2/CCP1 — PORTC bit 2 / CCP1 capture-compare-PWM |
| Pin produk 3 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin produk 4 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin produk 5 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin produk 6 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Pin produk 7 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Pin produk 8 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| Pin produk 9 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| Pin produk 10 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| Pin produk 11 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| Pin produk 12 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data (secondary) |
| Pin produk 13 | VDD — Positive supply voltage (4.2V to 5.5V) |
| Pin produk 14 | VSS — Ground reference |
| Pin produk 15 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Pin produk 16 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| Pin produk 17 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Pin produk 18 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| Pin produk 19 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| Pin produk 20 | RA2/AN2/VREF- — PORTA bit 2 / Analog input channel 2 / ADC negative reference |
| Pin produk 21 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input channel 3 / ADC positive reference |
| Pin produk 22 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin produk 23 | RA5/AN4/SS — PORTA bit 5 / Analog input channel 4 / SPI slave select |
| Pin produk 24 | RE0/RD/AN5 — PORTE bit 0 / Parallel Slave Port read / Analog input channel 5 |
| Pin produk 25 | RE1/WR/AN6 — PORTE bit 1 / Parallel Slave Port write / Analog input channel 6 |
| Pin produk 26 | RE2/CS/AN7 — PORTE bit 2 / Parallel Slave Port chip select / Analog input channel 7 |
| Pin produk 27 | VDD — Positive supply voltage (4.2V to 5.5V) - second pair |
| Pin produk 28 | VSS — Ground reference - second pair |
| Pin produk 29 | RB0/INT0 — PORTB bit 0 / External interrupt 0 |
| Pin produk 30 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| Pin produk 31 | RB2/INT2 — PORTB bit 2 / External interrupt 2 |
| Pin produk 32 | RB3/INT3/CCP2 — PORTB bit 3 / External interrupt 3 / CCP2 alternate |
| Pin produk 33 | RB4 — PORTB bit 4 |
| Pin produk 34 | RB5 — PORTB bit 5 |
| Pin produk 35 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin produk 36 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pin produk 37 | NC — Not connected |
| Pin produk 38 | CANTX — CAN transmit output to external transceiver |
| Pin produk 39 | CANRX — CAN receive input from external transceiver |
| Pin produk 40 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| Pin produk 41 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| Pin produk 42 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| Pin produk 43 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| Pin produk 44 | VSS — Ground reference - third pair |
| Pin produk 45 | VDD — Positive supply voltage (4.2V to 5.5V) - third pair |
| Pin produk 46 | MCLR — Master clear reset input (active low) |
| Pin produk 47 | RA6/OSC2 — PORTA bit 6 / alternate oscillator output |
| Pin produk 48 | RA7/OSC1 — PORTA bit 7 / alternate oscillator input |
| Pin produk 49 | RC0 — PORTC bit 0 (alternate function) |
| Pin produk 50 | RC1 — PORTC bit 1 (alternate function) |
| Pin produk 51 | RC2 — PORTC bit 2 (alternate function) |
| Pin produk 52 | RC3 — PORTC bit 3 (alternate function) |
| Pin produk 53 | VSS — Ground reference - fourth pair |
| Pin produk 54 | VDD — Positive supply voltage (4.2V to 5.5V) - fourth pair |
| Pin produk 55 | RB0 — PORTB bit 0 (alternate function) |
| Pin produk 56 | RB1 — PORTB bit 1 (alternate function) |
| Pin produk 57 | RB2 — PORTB bit 2 (alternate function) |
| Pin produk 58 | RB3 — PORTB bit 3 (alternate function) |
| Pin produk 59 | RB4 — PORTB bit 4 (alternate function) |
| Pin produk 60 | RB5 — PORTB bit 5 (alternate function) |
| Pin produk 61 | RB6 — PORTB bit 6 (alternate function) |
| Pin produk 62 | RB7 — PORTB bit 7 (alternate function) |
| Pin produk 63 | RA0 — PORTA bit 0 (alternate function) |
| Pin produk 64 | RA1 — PORTA bit 1 (alternate function) |
| Pin produk 65 | RA2 — PORTA bit 2 (alternate function) |
| Pin produk 66 | RA3 — PORTA bit 3 (alternate function) |
| Pin produk 67 | RA4 — PORTA bit 4 (alternate function) |
| Pin produk 68 | RA5 — PORTA bit 5 (alternate function) |
Aplikasi Umum
PIC18C658T-I/L cocok untuk 7 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC18C658T-I/L — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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) |
Diferensiator Kunci
- Integrated CAN 2.0B hardware controller eliminates external CAN IC (vsPIC18F452-I/L (no CAN module))
- Pin-compatible drop-in path to flash-based PIC18F458-I/L (vsOther obsolete OTP MCUs (no flash migration path))
- C-compiler-optimized linear 32KB program addressing (vsPIC16 mid-range parts (bank-switched 14-bit program memory))
Catatan Desain
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.
Informasi Konformitas
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.
