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Automotive SPI Communication Interface (ASCI)

Enables Robust Daisy-Chain EMC/EMI Performance and Cost Effective Isolation Solution

Product Details

Key Features

Parametric specs for UART-to-SPI Bridge
µP I/F SPI
# Channels 1
ICC (mA) (typ) 2.3
VSUPPLY (V) 5
Oper. Temp. (°C) -40 to +105
Package/Pins TSSOP/16
Budgetary
Price (See Notes)
3.81
View Less

Simplified Block Diagram

Technical Docs

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Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Parameters

Parametric specs for UART-to-SPI Bridge
µP I/F SPI
# Channels 1
ICC (mA) (typ) 2.3
VSUPPLY (V) 5
Oper. Temp. (°C) -40 to +105
Package/Pins TSSOP/16
Budgetary
Price (See Notes)
3.81

Key Features

  • Supports Maxim’s Battery Management UART Protocol
  • SPI Interface Up to 4MHz
  • UART Baud Rate Programmable Up to 2Mbps
  • 3.3V or 5V Operation
  • Ultra-Low Quiescent Current
  • Transmit and Receive Buffers with Programmable Interrupts Allow for Queuing of UART Messages
  • Manchester Encoder and Decoder Reduces Host Controller Burden
  • Operating Temperature Range from -40°C to +105°C (AEC-Q100 Type 2)
  • Supports ASIL Requirements

Applications/Uses

  • Battery Management Systems (BMS)
  • Electric and Hybrid Vehicles (EV/HEV)
  • Energy Storage Systems (ESS)

Description

The MAX17841B ASCI combines an SPI port with a universal asynchronous receiver transmitter (UART) specially designed to interface with Maxim battery management devices.

The UART can be configured to automatically perform Manchester encoding/decoding, message framing, parity, wake-up, and keep-alive signaling as required for Maxim’s battery management UART protocol.

The UART has programmable baud rates of 0.5Mbps, 1Mbps, or 2Mbps and supports either single-ended or differential signaling. For host efficiency, the UART contains a 28-byte transmit buffer and a 62-byte receive buffer with host-configurable interrupt events.

Simplified Block Diagram

MAX17841B: Simplified Operating Circuit MAX17841B: Simplified Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.