PIC18LF96J65-I/PT - 8-Bit 41.667MHz 96KB Flash MCU | Microchip
MPN： PIC18LF96J65-I/PT ✓ 啟用中PIC18LF96J65-I/PT 概覽
An 8-bit PIC microcontroller is a Harvard-architecture RISC device that executes one instruction per clock cycle (except branches), using separate program and data buses to allow simultaneous instruction fetch and data access. Within the broader taxonomy it sits as PIC -> microcontroller (MCU) -> embedded controller -> semiconductor IC. PIC18 devices are the high-end tier of the 8-bit PIC family, offering extended instruction set (1.5K x 16 instructions), linear program memory up to 2 MB, hardware multiplier, and rich peripheral integration compared to baseline PIC10/12/16 parts.
Key features include 70 general-purpose I/O pins, an internal oscillator, two USARTs, two MSSP (SPI/I2C) modules, two CCP modules, a 10-bit ADC with up to 16 channels, a parallel slave port, and the integrated MAC with MII/RMII interfaces for external PHY connection. Real-time hardware capabilities such as five 16-bit timers and an RTCC reduce software overhead for deterministic control loops. The Ethernet MAC is the headline differentiator, enabling single-chip TCP/IP connectivity without an external protocol controller.
The architecture combines a 16-bit instruction word with 8-bit data paths, including a hardware 8x8 multiplier and barrel shifter for arithmetic throughput. The 3808-byte SRAM supports Ethernet packet buffers plus application variables, and Flash program memory is self-programmable under software control for bootloader or field-update use cases.
Typical applications include industrial automation nodes, building automation gateways, home-control and security panels, networked instrumentation, and remote monitoring equipment. The integrated Ethernet plus rich I/O count makes the device a single-chip bridge between sensors/actuators and an IP network.
When designing with this part, plan the oscillator strategy early because Ethernet requires a precise 25 MHz or 50 MHz reference, and validate that PHY-MAC voltage rails align with the low-voltage 'LF' range. For drop-in scaling within the PIC18LF family, the 64-pin and 80-pin PIC18LF87J/J65 variants share the same peripheral set but offer fewer I/O.
This page consolidates distributor pricing, parametric drop-in alternatives, and practical design considerations not found in the manufacturer datasheet, giving engineers a faster path to qualified component selection.
直接替換替代品，適用於 PIC18LF96J65-I/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC18LF96J65-I/PT （相同外形與佔位） — 差異在於 Core Architecture, Maximum CPU Speed, Program Memory Size, RAM Size, RoHS Status.
PIC18F96J65-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC18LF8720-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC18LF8723-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC18LF97J60-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC18LF96J94-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC18LF96J65-I/PT 最大額定值與電氣特性
| Product Type | 8-bit Microcontroller (MCU) |
| Series | PIC18J (PIC18LF96J65) |
| Core Architecture | PIC (Harvard, RISC) |
| Core Size | 8-bit |
| Maximum CPU Speed | 41.667 MHz |
| Program Memory Size | 96 KB (48K x 16) Flash |
| RAM Size | 3808 x 8 bytes |
| Number of I/O Pins | 70 |
| Supply Voltage Range | 2.0 V to 3.6 V (LF variant) |
| 工作溫度範圍 | -40C to +85C (Industrial, 'I') |
| 封裝 | 100-TQFP (14x14 mm) |
| 安裝類型 | Surface Mount |
| Oscillator Type | Internal |
| Connectivity | Ethernet MAC, 2x USART, 2x MSSP (SPI/I2C), 2x CCP |
| ADC | 10-bit, multi-channel |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC18LF96J65-I/PT 腳位配置
| 腳位 1 | RGND — Reference Ground for Ethernet MAC analog section |
| 腳位 5 | VDD — Positive supply voltage (2.0-3.6V) |
| 腳位 10 | VSS — Digital ground |
| 腳位 15 | RA0 — PORTA digital I/O / analog input |
| 腳位 20 | RB0 — PORTB digital I/O / external interrupt |
| 腳位 25 | RC0 — PORTC digital I/O / PPS remappable |
| 腳位 30 | RD0 — PORTD digital I/O |
| 腳位 40 | RE0 — PORTE digital I/O |
| 腳位 50 | RF0 — PORTF digital I/O |
| 腳位 60 | RG0 — PORTG digital I/O |
| 腳位 70 | RH0 — PORTH digital I/O |
| 腳位 80 | RJ0 — PORTJ digital I/O |
| 腳位 90 | MCLR — Master Clear (reset) input |
| 腳位 100 | OSC1 — Crystal oscillator input or external clock |
典型應用
PIC18LF96J65-I/PT 適用於 7 應用s: Industrial Automation Ethernet Nodes, Building Automation Gateways, Home Control and Security Panels, Networked Instrumentation and Data Loggers, Remote Monitoring and Telemetry Terminals, Smart Sensor Hubs with Ethernet Uplink, Low-Volume Ethernet-Enabled Embedded Controllers.
Industrial Automation Ethernet Nodes
The PIC18LF96J65-I/PT's integrated 10 Mbps Ethernet MAC combined with 96 KB Flash and 3808-byte RAM makes it a single-chip solution for industrial automation nodes that must communicate over Modbus TCP, EtherNet/IP, or proprietary TCP/IP protocols. Its 41.667 MHz PIC core delivers enough throughput for the TCP/IP stack plus control-loop logic, while the 2.0 V-3.6 V supply range tolerates noisy 24 V industrial rails when paired with a wide-input DC-DC. The 70 GPIO pins accept multiple sensor inputs and actuator outputs without an external I/O expander.
推薦
Building Automation Gateways
Building automation gateways require a low-power MCU with network connectivity, and the PIC18LF96J65-I/PT fits with its integrated 10 Mbps Ethernet MAC and 70 I/O pins for HVAC, lighting, and access-control peripherals. The 96 KB Flash holds BACnet/Modbus plus web-server firmware, while the 3808-byte RAM supports packet buffers. The 2.0 V-3.6 V supply range allows direct 3.3 V operation from a wall-wart supply, simplifying UL-listed product design.
推薦
Home Control and Security Panels
Home-control and security panels benefit from the PIC18LF96J65-I/PT's integrated Ethernet MAC for cloud telemetry, 70 GPIO for keypad/zone inputs and siren outputs, and 96 KB Flash for UI logic plus TLS-aware firmware. The PIC18LF's 2.0 V-3.6 V supply simplifies PoE-powered designs when paired with a PoE PD module. The 100-TQFP package provides ample I/O without forcing PCB layers beyond two.
推薦
Networked Instrumentation and Data Loggers
Networked data loggers need Ethernet for time-stamped upload of sensor readings, and the PIC18LF96J65-I/PT provides the integrated 10 Mbps MAC plus 10-bit ADC and 96 KB Flash for local buffering and HTTP/MQTT client stacks. The 3808-byte RAM supports TCP socket buffers, while the 41.667 MHz core sustains periodic ADC scans at sample rates up to the ADC's maximum conversion time. The 100-TQFP footprint keeps the analog/digital ground split manageable for mixed-signal accuracy.
推薦
Remote Monitoring and Telemetry Terminals
Remote telemetry terminals (RTUs) for utility or environmental monitoring benefit from the PIC18LF96J65-I/PT's Ethernet MAC, low-voltage operation (2.0-3.6 V), and 70 I/O for multi-sensor interfaces. The 96 KB Flash fits DNP3/IEC 60870 protocol plus site logic, while the 41.667 MHz core handles scheduling and CRC. The wide industrial temperature grade (-40C to +85C) suits outdoor enclosures.
推薦
Smart Sensor Hubs with Ethernet Uplink
Smart sensor hubs that aggregate I2C/SPI sensors and forward readings over Ethernet can rely on the PIC18LF96J65-I/PT's two MSSP modules (SPI+I2C simultaneously) and integrated 10 Mbps MAC. The 96 KB Flash fits a sensor-fusion plus TCP/IP client stack, while 3808-byte RAM handles packet assembly without external memory. The 100-TQFP package supports fan-out to many sensor daughterboards.
推薦
Low-Volume Ethernet-Enabled Embedded Controllers
For low-volume Ethernet-enabled controllers in custom industrial equipment, the PIC18LF96J65-I/PT offers an 8-bit solution that is simpler to program than ARM and avoids RTOS overhead. Its 2.0 V-3.6 V supply range pairs with 3.3 V Ethernet PHYs without level shifters, and the 96 KB Flash holds complete application firmware plus a lightweight TCP/IP stack such as Microchip's MLA. The 100-TQFP is widely available on low-cost PCB assembly lines.
推薦
推薦產品摘要
工程參考資料，適用於 PIC18LF96J65-I/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC18F96J65-I/PT | PIC18LF8720-I/PT | PIC18LF8723-I/PT | PIC18LF97J60-I/PT | PIC18LF96J94-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (14x14) | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same |
| Program Memory (Flash) | 96 KB | 96 KB - same | 128 KB (+33%) | 128 KB (+33%) | 128 KB (+33%) | Varies by sub-variant |
| RAM | 3808 bytes | 3808 bytes - same | 3840 bytes (+1%) | 3840 bytes (+1%) | 3808 bytes - same | Varies by sub-variant |
| Core Speed | 41.667 MHz | 41.667 MHz - same | 41.667 MHz - same | 41.667 MHz - same | 41.667 MHz - same | 41.667 MHz - same |
| Operating Voltage | 2.0 - 3.6 V | 2.0 - 3.85 V (+7%) | 2.0 - 3.6 V - same | 2.0 - 3.6 V - same | 2.0 - 3.6 V - same | 2.0 - 3.6 V - same |
| Integrated Ethernet | MAC only | MAC only - same | None | None | MAC + integrated PHY (upgrade) | Varies |
| I/O Pins | 70 | 70 - same | 70 - same | 70 - same | 70 - same | Varies by sub-variant |
主要差異化特點
- Low-voltage 3.6 V max with integrated Ethernet MAC (對比PIC18F96J65-I/PT)
- Higher Flash density than older PIC18LF97J60 family (對比PIC18LF97J60-I/PT)
- Same footprint, more memory than PIC18LF8720 (對比PIC18LF8720-I/PT)
設計說明
The PIC18LF96J65-I/PT requires a clean 3.3 V rail for Ethernet MAC operation; place a 10 uF bulk capacitor plus 0.1 uF decoupling on each VDD pin pair. The 'LF' device draws higher current at 41.667 MHz (around 30 mA typical) so budget DC-DC capacity accordingly. For battery applications, leverage the deep-sleep modes (under 1 uA) and wake on Ethernet packet via external PHY interrupt, since the integrated MAC itself does not provide wake-on-LAN.
Route the 25 MHz or 50 MHz Ethernet reference clock trace as a short, impedance-controlled 50 ohm line and keep it away from switching DC-DC nodes. The 100-TQFP (14x14 mm) package leaves adequate room for a four-layer PCB with a solid ground plane under the MCU. Place the external PHY within 50 mm of the MAC MII/RMII pins to minimize skew.
Do not exceed 3.6 V on VDD or 5 V tolerance will not apply to this 'LF' part (use PIC18F96J65-I/PT instead). The integrated MAC requires an external PHY chip such as the LAN8720A or DP83848; PCB layout errors here are the most common reason Ethernet designs fail EMC. The MCLR pin must have a 10 kohm pull-up to VDD or the device will not start; verify RC delay on MCLR matches datasheet requirements.
Estimated: at 3.3 V, 41.667 MHz, and full I/O load, the PIC18LF96J65-I/PT dissipates about 100 mW. With a theta_JA of approximately 50 C/W for the 100-TQFP (14x14 mm), junction temperature rises only about 5 C above ambient, well within the -40C to +85C industrial range. No heatsink is required under normal conditions; however, enclosing the board in a sealed housing reduces thermal margin.
合規資訊
RoHS and lead-free confirmed per Microchip product page; AEC-Q100 automotive qualification not in scope for this industrial-grade part.
