Build with MCP2518FD — Datasheet Specs & AI Design Help

00 — Overview

What the MCP2518FD does

The MCP2518FD is an external CAN FD controller with an SPI interface, available in SOIC14 and VDFN14 packages. It supports data bit rates up to 8Mbps, arbitration rates up to 1Mbps, and SPI clock speeds reaching 20MHz. The device features 31 configurable FIFOs, 32 flexible filter objects, and 2KB of message RAM. It operates on a single supply of 2.7 to 5.5V with a typical sleep current of 15µA. This component is designed for microcontrollers lacking native CAN FD peripherals or requiring additional channels. It complies with ISO 11898-1:2015 and is AEC-Q100 qualified for automotive applications across extended, high, and industrial temperature ranges.

Next step

Start building with MCP2518FD → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.

01 — Key specifications

Datasheet parameters

Datasheet parameters for MCP2518FD
Parameter	Min	Typ	Max	Conditions	Source
supply voltage range	2.7 V	—	5.5 V		Microchip datasheet, p. 78 — TABLE 7-1: DC CHARACTERISTICS
operating temperature (abs max)	-40 °C	—	150 °C	Temperature Ranges	Microchip datasheet, p. 81 — TABLE 7-7: TEMPERATURE SPECIFICATIONS
data rate (abs max)	500 kbps	2 Mbps	8 Mbps	BRDATA ≥ BRNOM; CAN BIT RATE	Microchip datasheet, p. 80 — TABLE 7-4: CAN BIT RATE
fall time	—	—	100 ns	Note 2; SPI AC CHARACTERISTICS	Microchip datasheet, p. 81 — TABLE 7-6: SPI AC CHARACTERISTICS
output voltage low	—	—	600 mV	IOL = 2 mA, VDD = 2.7V; vol; Digital Output Pins	Microchip datasheet, p. 78 — TABLE 7-1: DC CHARACTERISTICS

02 — Alternatives

Closest matches to MCP2518FD

MCP2515 3.0× lower standby current, 2.4× lower operating temperature, 2.0× higher data rate

SN65HVD230 2.0× lower rise time, 1.2× higher fall time, 1.2× lower supply voltage range

GM3085E 5.3× higher fall time, 2.4× lower operating temperature, 2.0× higher data rate

MCP2551 5.5× lower supply voltage range, 5.0× higher quiescent current, 2.0× higher data rate

TLE6250C 2.0× higher data rate, 1.3× lower supply voltage range, similar operating temperature

ISO1050 8.3× lower quiescent current, 5.0× lower rise time, 3.0× lower output voltage low

GM75176E 20.0× higher data rate, 20.0× higher propagation delay, 7.1× lower fall time

TJA1042BT 10.0× higher data rate, 3.0× lower quiescent current, 1.2× higher supply voltage range

03 — FAQ

Frequently asked questions

What is the maximum data rate when BRDATA is greater than or equal to BRNOM?

The data rate is 2 Mbps.

What is the fall time specified in the SPI AC CHARACTERISTICS (Note 2)?

The fall time is 100 ns.

What is the maximum operating temperature for the MCP2518FD under Temperature Ranges conditions?

The operating temperature is 150 °C.

What is the output voltage low (vol) for the Digital Output Pins when IOL = 2 mA and VDD = 2.7V?

The output voltage low is 600 mV.

What is the maximum supply voltage for the MCP2518FD?

The maximum supply voltage is 5.5 V.