SC18IS602BIPW/S8HP

Controllers Overview

The SC18IS602BIPW/S8HP is an I²C-bus to SPI bridge manufactured by NXP USA Inc. It enables microcontrollers with only an I²C interface to communicate directly with SPI devices. The device operates as an I²C slave and an SPI master, handling all protocol and timing sequences internally. Key electrical parameters include an operating supply voltage range of 2.4 V to 3.6 V and a data buffer depth of 200 bytes. The I²C interface supports speeds up to 400 kHz, while the SPI master interface operates at frequencies up to 1.8 Mbit/s. The component is housed in a 16-lead TSSOP package.

Controllers Feature Summary

• Acts as a hardware bridge allowing I²C masters to control SPI peripherals without software bit-banging.
• Features an internal oscillator and manages all SPI bus-specific sequences, protocols, and timing autonomously.
• Includes a 200-byte data buffer for storing transmitted and received information between the two buses.
• Provides four configurable chip select outputs that can be repurposed as general-purpose I/O pins.

Controllers Applications

• Converting standard I²C-bus interfaces to SPI for driving SPI-enabled sensors or memory.
• Adding additional SPI bus controllers to existing systems limited to I²C connectivity.
• Interfacing microcontrollers with multiple SPI slave devices using programmable chip selects.

Controllers Procurement Notes

Verify the specific ordering suffix /S8HP against current NXP documentation, as the datasheet indicates potential discontinuation for the /S8 variant within the 2024-2025 timeframe. Confirm availability of detailed failure analysis services if required, as standard Failure Analysis may be restricted to ATE and electrical overstress verification for these devices. Ensure compatibility with industrial temperature ranges (-40°C to +85°C) specified in the product data sheet.

Controllers Selection Notes

Select this component when a system requires bridging I²C masters to SPI slaves without consuming MCU GPIO resources. Verify that the target SPI devices support the available clock modes (Mode 0 to Mode 3) and frequency limits up to 1.8 Mbit/s. Consider the 200-byte buffer capacity for burst transfers and ensure the I²C address configuration via A0-A2 pins fits the system topology. Check power consumption requirements against the specified operating and idle mode currents.

Controllers Part Context

The SC18IS602B series serves as a dedicated protocol converter within NXP's interface controller portfolio. It simplifies embedded designs by offloading SPI timing management from the main processor. The device integrates an internal oscillator, reducing external component count. It is designed for industrial applications requiring robust communication between disparate bus standards.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Consult NXP technical support for alternative bridge ICs if the SC18IS602BIPW/S8HP is unavailable due to the noted discontinuation plans for the /S8 family.

Controllers FAQ

How many SPI slave devices can be addressed simultaneously?

The device supports up to four SPI slave select outputs (SS0-SS3). Multiple SS pins can be enabled simultaneously for a single transmission, though users must manage potential data output contention on connected SPI slaves.

Can the SPI chip select pins be used for other purposes?

Yes, the four SPI chip select outputs (SS0, SS1, SS2, SS3) can be configured as general-purpose I/O (GPIO) pins if they are not required for SPI slave selection functions.

What is the maximum I²C clock speed supported?

The I²C-bus slave interface operates at speeds up to 400 kHz.