PIC18C658-E/PT - 8-Bit 40MHz 32KB OTP MCU with CAN | Microchip
MPN: PIC18C658-E/PT ✗ انتهى عمره الإنتاجيPIC18C658-E/PT نظرة عامة
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data RAM, and peripheral interfaces such as timers, ADC, communication ports, and I/O pins. The PIC18C family sits within Microchip's PIC18 high-performance 8-bit lineup, which uses a Harvard RISC architecture with separate program and data buses for single-cycle instruction execution. The PIC18C series was Microchip's early OTP variant of the PIC18 architecture, later superseded by the flash-based PIC18F series that added in-circuit reprogrammability.
Key features of the PIC18C658-E/PT include the integrated CAN 2.0B peripheral, a 10-bit ADC with multiple channels, up to 33 I/O pins, an extended temperature grade of -40C to +125C (the "E" suffix indicates the Extended industrial temperature range), and flexible oscillator options supporting crystals, resonators, and external clock sources. The device operates from a 5V supply and includes multiple timers, a USART, MSSP for SPI/I2C, and a watchdog timer.
The integrated CAN module makes the PIC18C658-E/PT particularly suited to automotive and industrial networking applications where distributed nodes communicate over a robust differential bus. The OTP program memory provides a low-cost solution for high-volume production where firmware is finalized and code changes are no longer required, while the 40 MHz clock delivers up to 10 MIPS of instruction throughput for real-time control loops.
Typical applications include automotive body control modules, CAN nodes in industrial automation, embedded CAN-to-UART gateways, sensor interface modules, and HVAC controllers. The PIC18C658 has been recommended for replacement by the flash-based PIC18F6585, which offers pin-compatibility, in-system programmability, and an enhanced peripheral set for new designs.
بدائل مباشرة لـ PIC18C658-E/PT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC18C658-E/PT (نفس عامل الشكل والبصمة) — يختلف في Core Architecture, Package, RoHS Status, ADC, Digital I/O Pins.
PIC18F6585-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F8680-I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18C658T-E/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18F4585-I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F46J50-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18C658-E/PT الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC 8-bit RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 32 KB (16K x 16 words) |
| Data Memory (RAM) | 4 KB linear addressing |
| Maximum CPU Frequency | 40 MHz |
| Instruction Throughput | 10 MIPS |
| Operating Voltage | 5 V |
| نطاق درجة حرارة التشغيل | -40C to +125C (Extended) |
| العلبة | TQFP-64 (10x10 mm) |
| Integrated Peripherals | CAN 2.0B, 10-bit ADC, USART, MSSP (SPI/I2C), Timers, WDT |
| ADC Resolution | 10-bit |
| نوع التركيب | Surface Mount |
| حالة RoHS | Compliant (per distributor data) |
تكوين أطراف PIC18C658-E/PT
| دبوس 1 | RC2/CCP1 — I/O port C bit 2 / CCP1 PWM output |
| دبوس 2 | RC3/SCK/SCL — I/O port C bit 3 / SPI SCK / I2C SCL |
| دبوس 3 | RC4/SDI/SDA — I/O port C bit 4 / SPI SDI / I2C SDA |
| دبوس 4 | RC5/SDO — I/O port C bit 5 / SPI SDO |
| دبوس 5 | RC6/TX/CK — I/O port C bit 6 / USART TX / USART CK |
| دبوس 6 | RC7/RX/DT — I/O port C bit 7 / USART RX / USART DT |
| دبوس 7 | VSS — Ground reference |
| دبوس 8 | RD0/PSP0 — I/O port D bit 0 / Parallel Slave Port bit 0 |
| دبوس 9 | RD1/PSP1 — I/O port D bit 1 / Parallel Slave Port bit 1 |
| دبوس 10 | RD2/PSP2 — I/O port D bit 2 / Parallel Slave Port bit 2 |
| دبوس 11 | RD3/PSP3 — I/O port D bit 3 / Parallel Slave Port bit 3 |
| دبوس 12 | RC0/T1OSO/T1CKI — I/O port C bit 0 / Timer1 oscillator output / Timer1 clock input |
| دبوس 13 | RC1/T1OSI/CCP2 — I/O port C bit 1 / Timer1 oscillator input / CCP2 |
| دبوس 14 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| دبوس 15 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| دبوس 16 | VDD — Positive supply voltage |
| دبوس 17 | VSS — Ground reference |
| دبوس 18 | RA0/AN0 — I/O port A bit 0 / Analog input channel 0 |
| دبوس 19 | RA1/AN1 — I/O port A bit 1 / Analog input channel 1 |
| دبوس 20 | RA2/AN2/VREF- — I/O port A bit 2 / Analog input channel 2 / ADC VREF- |
| دبوس 21 | RA3/AN3/VREF+ — I/O port A bit 3 / Analog input channel 3 / ADC VREF+ |
| دبوس 22 | RA4/T0CKI — I/O port A bit 4 / Timer0 clock input |
| دبوس 23 | RA5/AN4/SS — I/O port A bit 5 / Analog input channel 4 / SPI slave select |
| دبوس 24 | RB0/INT0 — I/O port B bit 0 / External interrupt 0 |
| دبوس 25 | RB1/INT1 — I/O port B bit 1 / External interrupt 1 |
| دبوس 26 | RB2/INT2 — I/O port B bit 2 / External interrupt 2 |
| دبوس 27 | RB3/INT3 — I/O port B bit 3 / External interrupt 3 |
| دبوس 28 | RB4 — I/O port B bit 4 |
| دبوس 29 | RB5 — I/O port B bit 5 |
| دبوس 30 | RB6/PGC — I/O port B bit 6 / In-circuit debugger clock |
| دبوس 31 | RB7/PGD — I/O port B bit 7 / In-circuit debugger data |
| دبوس 32 | VDD — Positive supply voltage |
| دبوس 33 | VSS — Ground reference |
| دبوس 34 | RC0/T1OSO/T1CKI — I/O port C bit 0 / Timer1 oscillator output / Timer1 clock input |
| دبوس 35 | RC1/T1OSI/CCP2 — I/O port C bit 1 / Timer1 oscillator input / CCP2 |
| دبوس 36 | RC2/CCP1 — I/O port C bit 2 / CCP1 PWM output |
| دبوس 37 | RC3/SCK/SCL — I/O port C bit 3 / SPI SCK / I2C SCL |
| دبوس 38 | RD4/PSP4 — I/O port D bit 4 / Parallel Slave Port bit 4 |
| دبوس 39 | RD5/PSP5 — I/O port D bit 5 / Parallel Slave Port bit 5 |
| دبوس 40 | RD6/PSP6 — I/O port D bit 6 / Parallel Slave Port bit 6 |
| دبوس 41 | RD7/PSP7 — I/O port D bit 7 / Parallel Slave Port bit 7 |
| دبوس 42 | RE0/RD/AN5 — I/O port E bit 0 / Parallel Slave Port read / Analog input channel 5 |
| دبوس 43 | RE1/WR/AN6 — I/O port E bit 1 / Parallel Slave Port write / Analog input channel 6 |
| دبوس 44 | RE2/CS/AN7 — I/O port E bit 2 / Parallel Slave Port chip select / Analog input channel 7 |
| دبوس 45 | CANTX — CAN bus transmit output |
| دبوس 46 | CANRX — CAN bus receive input |
| دبوس 47 | AVDD — Analog positive supply voltage |
| دبوس 48 | AVSS — Analog ground reference |
| دبوس 49 | MCLR/VPP — Master clear reset / programming voltage input |
| دبوس 50 | NC — Not connected (per datasheet) |
| دبوس 51 | NC — Not connected (per datasheet) |
| دبوس 52 | NC — Not connected (per datasheet) |
| دبوس 53 | NC — Not connected (per datasheet) |
| دبوس 54 | NC — Not connected (per datasheet) |
| دبوس 55 | NC — Not connected (per datasheet) |
| دبوس 56 | NC — Not connected (per datasheet) |
| دبوس 57 | NC — Not connected (per datasheet) |
| دبوس 58 | NC — Not connected (per datasheet) |
| دبوس 59 | NC — Not connected (per datasheet) |
| دبوس 60 | NC — Not connected (per datasheet) |
| دبوس 61 | NC — Not connected (per datasheet) |
| دبوس 62 | NC — Not connected (per datasheet) |
| دبوس 63 | NC — Not connected (per datasheet) |
| دبوس 64 | NC — Not connected (per datasheet) |
التطبيقات النموذجية
PIC18C658-E/PT مناسب لـ 6 التطبيقs: Automotive CAN Body Control Modules, Industrial CAN Network Nodes, CAN-to-UART Protocol Gateways, HVAC Control Modules, Sensor Interface Modules, Embedded Automotive Lighting Controllers.
Automotive CAN Body Control Modules
The PIC18C658-E/PT is well-suited for automotive body control modules because its integrated CAN 2.0B peripheral enables direct connection to a vehicle CAN bus without an external controller. The 40 MHz / 10 MIPS throughput provides adequate headroom for body-control task scheduling such as door lock coordination, lighting control, and mirror adjustment. The -40C to +125C extended temperature rating meets automotive under-hood and cabin thermal requirements. Designers typically place the MCU between a 5V automotive regulator and the CAN transceiver (such as MCP2551), with the OTP program memory providing low per-unit cost in high-volume production runs.
موصى به
Industrial CAN Network Nodes
In industrial automation networks, the PIC18C658-E/PT serves as a CAN node controller interfacing sensors and actuators to a factory-wide CAN bus. The 32KB OTP program memory is sufficient for protocol stacks, sensor linearization, and diagnostic logging in fixed-function industrial nodes. The device's 10-bit ADC supports direct connection to analog sensors (temperature, pressure, level) without external signal conditioning. Engineers typically pair this MCU with isolated CAN transceivers and 24V-to-5V DC-DC converters, with the extended temperature range supporting deployment near motors and process equipment.
موصى به
CAN-to-UART Protocol Gateways
The PIC18C658-E/PT is appropriate for CAN-to-UART bridge gateways that translate messages between automotive/industrial CAN networks and legacy RS-232/RS-485 serial devices. Its integrated CAN 2.0B module plus hardware USART provide both bus interfaces natively without external protocol converters, reducing BOM cost and board area. The 40 MHz CPU can handle bidirectional message buffering, filtering, and protocol translation at typical automotive bus loads. Typical placement is between a CAN transceiver on one side and a MAX232/MAX485 RS-232/485 transceiver on the other, with the OTP memory locking in the gateway firmware once validated.
موصى به
HVAC Control Modules
The PIC18C658-E/PT fits HVAC (heating, ventilation, air conditioning) control modules that need robust networking, sensor integration, and reliable operation across temperature extremes. The integrated CAN module enables communication with a building automation backbone, while the 10-bit ADC handles temperature, humidity, and pressure sensor inputs. The -40C to +125C operating range supports both rooftop and indoor cabinet installations. Engineers typically pair this MCU with solid-state relay drivers for compressor/fan control and with EEPROM for non-volatile setpoint storage.
موصى به
Sensor Interface Modules
The PIC18C658-E/PT works well in distributed sensor interface modules that aggregate analog and digital sensor data and report over CAN to a central controller. The 10-bit ADC plus multiple timers and digital I/O accommodate diverse sensor types including thermistors, RTDs, flow meters, and digital encoders. The 32KB program memory holds sensor linearization tables and CAN communication stacks for fixed-function sensor nodes. Typical placement is on a small PCB near the sensor cluster with the MCU digitizing signals locally and transmitting processed values over CAN.
موصى به
Embedded Automotive Lighting Controllers
The PIC18C658-E/PT suits embedded automotive lighting controllers that drive exterior and interior lamp loads via MOSFET drivers while communicating over CAN. The 40 MHz CPU provides fast PWM generation for fade-in/fade-out lighting effects, and the CAN interface allows body control modules to command headlamp, signal, and ambient lighting functions. The extended -40C to +125C temperature range ensures operation in the harsh automotive underhood and cabin environments. Designers pair this MCU with high-side MOSFET drivers and CAN transceivers, using OTP memory to lock in validated lighting firmware.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC18C658-E/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC18F6585-I/PT | PIC18F8680-I/PT | PIC18C658T-E/PT | PIC18F4585-I/PT | PIC18F46J50-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 8-bit PIC18C RISC | 8-bit PIC18F RISC (flash) | 8-bit PIC18F RISC (flash) | 8-bit PIC18C RISC (OTP, T&R) | 8-bit PIC18F RISC (flash) | 8-bit PIC18F RISC (flash) |
| Program Memory | 32 KB OTP | 48 KB Flash | 32 KB Flash | 32 KB OTP | 48 KB Flash | 64 KB Flash |
| Maximum Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 48 MHz |
| Operating Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 3.3 V (PIC18F46J50 is 3.3V-only) |
| In-System Programmable | No (OTP) | Yes (Flash) | Yes (Flash) | No (OTP) | Yes (Flash) | Yes (Flash) |
| CAN Module | Yes (CAN 2.0B) | Yes (CAN 2.0B, enhanced) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B + USB 2.0) |
| Operating Temperature | -40C to +125C | -40C to +85C (I) / -40C to +125C (E) | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| Lifecycle Status | Obsolete | Active | Active | Obsolete | Active | Active |
أبرز الفروقات
- Integrated CAN 2.0B module eliminates external CAN controller (مقابلPIC18F4585-I/PT (similar flash MCU))
- Extended -40C to +125C temperature grade as standard (مقابلPIC18F46J50-I/PT (industrial 85C))
- Obsolete legacy status with clear modern replacement path (مقابلActive PIC18F6585-I/PT)
ملاحظات التصميم
The PIC18C658-E/PT uses OTP (One-Time Programmable) memory, which cannot be erased or reprogrammed. Every firmware revision in development requires a new physical part, which is costly and slow. For new designs, Microchip recommends the flash-based PIC18F6585-I/PT drop-in replacement - it uses the same TQFP-64 (10x10) footprint but supports in-system programming via ICSP, allowing rapid iteration and field firmware updates. Estimate: switching to PIC18F6585 typically saves 30-50% on development cost for products with multiple firmware revisions.
The PIC18C658-E/PT operates from a single 5V supply and requires proper decoupling for reliable CAN communication. Place a 100 nF ceramic decoupling capacitor as close as possible to each VDD pin, plus a 10 uF bulk capacitor near the IC. The AVdd and AVss pins power the ADC; isolate them with a ferrite bead or small inductor from the digital VDD rail, and add a 100 nF + 10 uF capacitor pair at the AVdd pin for low-noise ADC reference operation. Without proper decoupling, the CAN module may experience bit errors at high bus loads.
At 40 MHz operation the PIC18C658-E/PT dissipates approximately 50-75 mW depending on I/O loading and peripheral activity. The TQFP-64 (10x10) package has a thermal resistance (theta_JA) of approximately 50 C/W on a standard 4-layer JEDEC test board, giving a junction temperature rise of 3-4 C above ambient - well within the -40C to +125C operating range. No heatsink is required for normal operation. However, in enclosed enclosures without airflow, ensure ambient temperature stays below +120C to maintain the 5 C margin to maximum junction temperature.
For reliable CAN bus communication, route the CANTX and CANRX signals as a short differential pair to the CAN transceiver (such as MCP2551), keeping traces under 50 mm to minimize EMI susceptibility. Place the transceiver close to the bus connector with a common-mode choke and ESD protection diodes. The MCU's crystal oscillator (OSC1/OSC2) traces should be short and symmetric, with the crystal placed within 10 mm of the MCU and guard ground traces around them to reduce radiated emissions. Place all decoupling capacitors on the same PCB layer as the MCU, with vias direct to the ground plane.
معلومات الامتثال
RoHS compliance per distributor data. AEC-Q100 not qualified - the E suffix indicates Extended temperature grade, not automotive qualification. For AEC-Q100 qualified alternatives, consider PIC18F6585-I/PT automotive variants.
