CY7C53120E2-10SXIT

Application Specific Microcontrollers Overview

The CY7C53120E2-10SXIT is a Neuron Chip Network Processor manufactured by Infineon Technologies. It implements LonWorks distributed intelligent control network nodes, integrating communication and control functions on a single chip. The device features three 8-bit pipelined processors for concurrent application code and network traffic processing. It includes 2 KB of SRAM, 2 KB of Flash memory, and 10 KB of ROM containing LonTalk network protocol firmware. The component operates at a maximum input clock frequency of 10 MHz over an industrial temperature range of -40°C to 85°C.

Application Specific Microcontrollers Feature Summary

• Three 8-bit pipelined processors enable concurrent processing of application code and network traffic.
• On-chip 10 KB ROM contains LonTalk network protocol firmware and 34 preprogrammed I/O drivers.
• Versatile 5-pin communication port supports direct connect and network transceiver interfaces with configurable modes.
• Integrated Low Voltage Detect (LVD) circuit prevents nonvolatile memory corruption during voltage drops.

Application Specific Microcontrollers Applications

• LonWorks distributed intelligent control networks
• Building automation systems
• Industrial process control applications

Application Specific Microcontrollers Procurement Notes

Verify the package type matches the required design constraints; this specific part number corresponds to the 32-pin SOIC package. Confirm that the system firmware requirements align with the factory-programmed 10 KB ROM content. Ensure the external power supply maintains VDD within the 4.5 V to 5.5 V range to prevent LVI tripping. Check for any specific ordering suffix variations if tape-and-reel packaging is required instead of tube.

Application Specific Microcontrollers Selection Notes

Select the CY7C53120E2-10SXIT when a fixed 10 MHz operating speed and 10 KB of protocol firmware are sufficient for the application. This variant is suitable for designs requiring a 32-pin SOIC footprint. For higher clock speeds or larger ROM capacities, consider the CY7C53120E4 series. Ensure the application does not require external memory addressing, which is exclusive to the CY7C53150 model.

Application Specific Microcontrollers Part Context

This component belongs to the CY7C531x0 Neuron chip family, designed for LonWorks node implementation. It serves as a direct replacement for the Motorola MC143120E2 device due to identical firmware in ROM. The family utilizes 0.35 µm flash process technology to provide cost-effective solutions for networked control systems.

Application Specific Microcontrollers Replacement Considerations

The CY7C53120E2-10SXIT is an exact replacement for the Motorola MC143120E2 device. Designers migrating from legacy parts should verify pin compatibility and ensure the 5.0 V operation level matches the existing system voltage rails.

Application Specific Microcontrollers FAQ

What is the function of the SERVICE pin?

The SERVICE pin is an active LOW I/O that alternates between input and output at a 76-Hz rate, used for service operations.

How does the device protect against voltage drops?

An on-chip Low-voltage Inhibit (LVI) circuit trips whenever the VDD input falls below 4.1 ± 0.3 V, preventing corruption of nonvolatile memory.

Can the user application program be updated after assembly?

Yes, the user application stored in the on-chip Flash memory can be downloaded and updated over the LonTalk network from an external network management tool.