CAN Transceiver - ASM1042S
The ASM1042S is a high‑performance CAN FD transceiver. It supports data rates up to 5 Mbps, offers a ±30 V receiver common‑mode voltage range, and provides ±70 V bus fault protection. The device is compatible with both 3.3 V and 5 V I/O levels. It’s suitable for demanding automotive, industrial, space, and defense applications.
Designed with an advanced radiation‑hardened architecture, the ASM1042S delivers reliable operation in high‑safety environments such as commercial space and military systems. The device is AEC‑Q100 qualified. It is drop‑in compatible with TJA1042 and TCAN1042.
Product Details
- Low-power standby mode with wake-up function
- I/O voltage range supports 3.3V and 5V MCU
- High-speed CAN, supporting 5Mbps CAN FD (Flexible Data Rate)
- High anti-electromagnetic interference capability
- Ideal passive behavior when unpowered
- – Bus and logic pins are in high-impedance state (no load)
- – No interference operation during power-up/power-down on bus and RXD output
- Receiver common-mode input voltage: ±30V
- Typical loop delay: 110ns
- SEU : ≥75MeV.cm²/mg or times/device·day
- SEL : ≥75MeV.cm²/mg
- Bus fault protection: ±70V
- Undervoltage protection for VCC and VIO power terminals
- Driver dominant timeout (TXD DTO), data rate as low as 10kbps
- Thermal shutdown protection (TSD)
- Built-in over-temperature protection function
Package : SOIC8
- High security
- IO interface supports high resistance for power failure
- Over-temperature protection
- Undervoltage protection
- Radiation resistance: SEU≥75MeV.cm²/mg or 10^(-5) times/device.day; SEL≥75MeV.cm²/mg.
- Automotive specification certification: AEC-Q100.
Product Manual
ASM1042S Data sheet V1.1.pdf
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