PIC18F46K80-I/ML - 64KB Flash 8-bit MCU w/ ECAN, XLP, 44-QFN
MPN: PIC18F46K80-I/ML ✓ NakahandaPIC18F46K80-I/ML Ulas
A microcontroller (MCU) is a single-chip computer containing a CPU, program memory, data memory, and programmable I/O peripherals. The PIC18F46K80 belongs to Microchip's PIC18 XLP family, which sits within the broader 8-bit PIC microcontroller hierarchy (PIC10/12/14/16/18). It is engineered for low-power embedded applications with high analog precision and a robust CAN interface.
Key features include 64 KB Flash program memory (32K x 16), 1 KB EEPROM, 4 KB RAM, 12-bit ADC with up to 11 channels, 2 analog comparators, 2 CCP/ECCP modules, an integrated ECAN module compliant with CAN 2.0B, 2 MSSP (SPI/I2C), 2 enhanced USART, and a Charge Time Measurement Unit (CTMU). The 44-QFN package provides a compact 8x8 mm footprint with an exposed pad for thermal dissipation.
Architecturally, the device uses an enhanced Harvard RISC core with a 16-bit instruction word and 8-bit data path, achieving 16 MIPS at 64 MHz. The nanoWatt XLP technology offers sleep currents as low as 20 nA typical, while the integrated ECAN controller supports up to 1 Mbps bus speeds with hardware filtering. The 12-bit ADC delivers up to 100 ksps with acquisition-plus-conversion timing controlled by the CTMU.
Typical applications include automotive body and HVAC control, building automation nodes (BACnet/Modbus bridges), elevator controller boards, industrial sensor nodes with CAN backbone, and battery-powered metering. The wide 1.8 V to 5.5 V range and XLP modes support direct Li-Ion battery operation.
When designing with this part, ensure proper decoupling on VDD/AVDD pairs, route the ECAN TX/RX lines as a differential pair with 120-ohm termination, and follow Microchip's recommended QFN thermal pad soldering pattern (NSMD land, 9 thermal vias). Programming/debugging uses ICSP over the standard PGC/PGD/PGM lines via PICkit or MPLAB ICD.
This page synthesizes distributor pricing, drop-in QFN-44 alternatives, and practical design notes not found in the standalone Microchip datasheet, helping engineers compare MCUs and source reliably.
Mga alternatibo na pwedeng ilagay na PIC18F46K80-I/ML — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok PIC18F46K80-I/ML (parehas na form factor at footprint) — pagkakaiba sa Package, ADC, Operating Temperature, Core Architecture, Core.
PIC18F46K80-E/ML
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC18F46K80T-I/ML
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
PIC18F45K80-I/ML
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
PIC18F46K40-I/ML
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC18F46K42-I/ML
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC18F4682-I/ML
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC18F46K80-I/ML Mga Pinakamataas na Rating at Electrical Characteristics
| Core Architecture | PIC18 (8-bit enhanced Harvard RISC) |
| Maximum CPU Frequency | 64 MHz |
| Performance | 16 MIPS |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data RAM | 4 KB |
| Data EEPROM | 1 KB |
| Operating Voltage Range | 1.8 V to 5.5 V |
| ADC | 12-bit, up to 11 channels |
| CAN Module | ECAN 2.0B, up to 1 Mbps |
| Comparators | 2 analog comparators |
| CCP/ECCP Modules | 2 |
| MSSP (SPI/I2C) | 2 |
| Enhanced USART | 2 |
| CTMU | Yes (Charge Time Measurement Unit) |
| I/O Pins | 35 (typical for 44-QFN variant) |
| Packhaging | 44-pin QFN (8x8 mm) |
| Temperature na Operasyon | -40 C to +85 C (industrial, -I) |
| Tindminan RoHS | Compliant |
Pin Configuration ng PIC18F46K80-I/ML
| Pin 1 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Pin 2 | RA3/AN3 — Port A bit 3 / analog input 3 |
| Pin 3 | RA4/AN4 — Port A bit 4 / analog input 4 |
| Pin 4 | RA5/AN5 — Port A bit 5 / analog input 5 |
| Pin 5 | RA6/OSC2 — Port A bit 6 / oscillator output |
| Pin 6 | RA7/OSC1 — Port A bit 7 / oscillator input |
| Pin 7 | VDD — Positive supply (1.8 V - 5.5 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| Pin 10 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| Pin 11 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| Pin 12 | RB3/INT3 — Port B bit 3 / external interrupt 3 |
| Pin 13 | RB4/ECCP1 — Port B bit 4 / ECCP channel 1 |
| Pin 14 | RB5/ECCP2 — Port B bit 5 / ECCP channel 2 |
| Pin 15 | RB6/PGC — Port B bit 6 / ICSP clock |
| Pin 16 | RB7/PGD — Port B bit 7 / ICSP data |
| Pin 17 | RC0 — Port C bit 0 |
| Pin 18 | RC1 — Port C bit 1 |
| Pin 19 | RC2 — Port C bit 2 |
| Pin 20 | RC3 — Port C bit 3 |
| Pin 21 | RC4 — Port C bit 4 |
| Pin 22 | RC5 — Port C bit 5 |
| Pin 23 | RC6/TX — Port C bit 6 / EUSART TX |
| Pin 24 | RC7/RX — Port C bit 7 / EUSART RX |
| Pin 25 | RD0 — Port D bit 0 |
| Pin 26 | RD1 — Port D bit 1 |
| Pin 27 | RD2 — Port D bit 2 |
| Pin 28 | RD3 — Port D bit 3 |
| Pin 29 | RD4 — Port D bit 4 |
| Pin 30 | RD5 — Port D bit 5 |
| Pin 31 | RD6 — Port D bit 6 |
| Pin 32 | RD7 — Port D bit 7 |
| Pin 33 | RE0 — Port E bit 0 |
| Pin 34 | RE1 — Port E bit 1 |
| Pin 35 | RE2 — Port E bit 2 |
| Pin 36 | RE3 — Port E bit 3 |
| Pin 37 | AVDD — Analog positive supply |
| Pin 38 | AVSS — Analog ground |
| Pin 39 | C1IN-/CVREF — Comparator 1 in- / CV reference |
| Pin 40 | C1IN+ — Comparator 1 in+ |
| Pin 41 | C2IN+ — Comparator 2 in+ |
| Pin 42 | C2IN- — Comparator 2 in- |
| Pin 43 | CANRX — ECAN receive input |
| Pin 44 | CANTX — ECAN transmit output |
Tipikal na mga Gamit
PIC18F46K80-I/ML ay nararapat para sa 6 aplikasyons: Automotive Body and HVAC Control, Building Automation and BACnet Nodes, Elevator Control Boards, Industrial Sensor Nodes with CAN Backbone, Battery-Powered Metering and Telemetry, Touch-Key and Capacitive Sensing Panels.
Automotive Body and HVAC Control
The PIC18F46K80-I/ML fits automotive body controllers and HVAC modules because of its integrated ECAN 2.0B controller (up to 1 Mbps) and 1.8 V to 5.5 V supply tolerance. With 64 KB Flash and 4 KB RAM it can host CANopen or J1939 stacks alongside HVAC control logic. The CTMU enables touch-key and capacitive sensing for climate-control panels, and the 12-bit ADC supports multiple analog sensor inputs for cabin temperature and pressure.
Inirekomenda
Building Automation and BACnet Nodes
The PIC18F46K80-I/ML suits building automation controllers (HVAC, lighting, access) because of its low sleep current (XLP), 64 KB Flash for BACnet/Modbus stacks, and dual USART for RS-485 trunks. The 44-QFN package fits inside compact wall-sensor enclosures, and the 2 MSSP ports support SPI sensors plus I2C IO expanders for keypad/LED control.
Inirekomenda
Elevator Control Boards
The PIC18F46K80-I/ML supports elevator door controllers and floor-node displays because of its ECCP/PWM peripherals for motor control and the 12-bit ADC for current sensing. ECAN links cars to the shaft controller via CANopen DS417, and the 1.8-5.5 V range accepts 24 V industrial rails after regulation. The 64 KB Flash fits full CANopen plus safety logic stacks.
Inirekomenda
Industrial Sensor Nodes with CAN Backbone
The PIC18F46K80-I/ML serves as an industrial sensor node because its ECAN 2.0B controller, 12-bit ADC, and CTMU enable precision analog measurement plus deterministic CAN communication on the factory backbone. The 64 KB Flash fits CANopen or DeviceNet slave stacks, while the 4 KB RAM buffers measurement bursts. XLP sleep modes extend battery life on remote wireless bridges.
Inirekomenda
Battery-Powered Metering and Telemetry
The PIC18F46K80-I/ML supports battery-powered metering because of its nanoWatt XLP modes (sub-100 nA typical sleep) and 1.8 V operation directly from a single Li-Ion or 2xAA cell. The 12-bit ADC with CTMU accurately measures voltage, current, and temperature, while the ECAN interface links the meter to a concentrator over CAN. 64 KB Flash fits metering firmware plus secure OTA bootloader space.
Inirekomenda
Touch-Key and Capacitive Sensing Panels
The PIC18F46K80-I/ML drives capacitive touch panels because its on-chip CTMU provides constant-current charge timing for sliders and buttons, while the 12-bit ADC reads the analog touch waveform. The 64 KB Flash fits Microchip's mTouch library plus the application UI, and the 44-QFN package fits behind thin glass panels. ECAN connectivity allows touch events to be reported over the body network.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for PIC18F46K80-I/ML — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | PIC18F46K80-E/ML | PIC18F46K80T-I/ML | PIC18F45K80-I/ML | PIC18F46K40-I/ML | PIC18F46K42-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB | 64 KB | 64 KB |
| RAM | 4 KB | 4 KB | 4 KB | 2 KB | 4 KB | 8 KB |
| Maximum CPU Frequency | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) |
| ECAN Module | Yes (CAN 2.0B) | Yes | Yes | Yes | No | No |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
Pangunahing mga Pagkakaiba
- Integrated ECAN 2.0B with hardware acceptance filters (kumpara saPIC18F46K40-I/ML)
- On-chip CTMU for capacitive touch and precise timing (kumpara saPIC18F46K42-I/ML)
- Wider 1.8 V to 5.5 V VDD vs K40/K42 family range (kumpara saPIC18F46K40-I/ML)
Talaan ng Disenyo
Place 100 nF decoupling capacitors on every VDD/VSS pair and a bulk 10 uF tantalum near the ICSP VDD pin. The PIC18F46K80's XLP sleep modes draw under 100 nA typical, so the decoupling network must be low-leakage ceramic (X7R) to avoid offsetting the sleep current budget. For ECAN-active nodes, add a ferrite bead between the digital 3.3 V rail and the analog AVDD rail.
The 44-QFN exposed pad (EP) must be soldered to a grounded copper pour with at least 9 thermal vias (0.3 mm drill, 0.5 mm pitch) for heat dissipation. A non-soldered EP can raise junction temperature by 20-30 C at 64 MHz full-load operation, leading to thermal shutdown or ADC drift. Follow Microchip AN246 QFN soldering guidelines for the NSMD land pattern.
Route the ECAN CANTX/CANRX traces as a 120-ohm differential pair with controlled impedance; keep pair length matched within 5 mm and avoid vias on each leg. Place the MCP2562 (or compatible) CAN transceiver within 25 mm of the IC. The ICSP PGC/PGD traces must be less than 100 mm to ensure reliable in-circuit programming with PICkit 4 or ICD 4.
Do not confuse the -I/ML industrial grade (-40 C to +85 C) with the -E/ML extended grade (-40 C to +125 C); the -E variant is required for underhood automotive nodes. Also avoid pulling MCLR low during ECAN traffic - the ECAN module loses bus synchronization if MCLR is held in reset for more than the oscillator start-up time (typ 4 ms).
Impormasyon ng Pagsunod sa Kautusan
RoHS and REACH compliant per Microchip product page. AEC-Q100 qualification not listed for the -I/ML grade; the -E/ML extended temp variant is typically used for underhood automotive. Lead-free and halogen-free per Microchip environmental compliance statements.