Infineon Technologies MB95F354EWQN-G-SNE1

Overview

MB95F354EWQN-G-SNE1 from Cypress Semiconductor is an 8-bit F2MC-8FX microcontroller with 20 KB Flash, 496 B RAM, 6-channel 8/10-bit ADC, dual I²C (one configurable as UART/SIO), LIN-UART, two 8/16-bit composite timers, and hardware/software watchdog - used in automotive body control modules for sensor interface and actuator sequencing.

For engineers reviewing the MB95F354EWQN-G-SNE1 datasheet, MB95F354EWQN-G-SNE1 pinout, MB95F354EWQN-G-SNE1 application, or MB95F354EWQN-G-SNE1 equivalent, key selection criteria include Flash banked dual-operation capability, sub-CR clock support for low-power wake-up, LIN master/slave operation, and 22-pin CMOS/N-ch open-drain I/O configuration in LCC-32 package.

Technical Context

The MB95F354EWQN-G-SNE1 implements the F2MC-8FX CPU core with 136 instructions, 8-/16-bit arithmetic, bit-test branching, and multiplication/division support. It operates at up to 16.25 MHz machine clock using external or main CR clock sources.

Peripheral integration includes two 8/16-bit composite timers (with PWM, PWC, input capture), a time-base timer (0.256 ms–8.3 s range), full-duplex UART/SIO with double buffer and NRZ format, and dual I²C channels supporting Standard/Fast-mode (400 kHz) with built-in wake-up and arbitration functions.

Key Specifications

Pinout & Package

LCC-32P-M19 (32-pin leadless chip carrier, 7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit automotive microcontroller applications.

Compared with MB95F353EWQN-G-SNE1, the MB95F354EWQN-G-SNE1 provides 67% more Flash for complex LIN protocol stacks and diagnostic routines; versus MB95F354LWQN-G-SNE1, it adds mandatory safety features - LVD reset and clock supervisor - required for automotive body electronics compliance.

Availability

MB95F354EWQN-G-SNE1 is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor gateways, and medical diagnostic peripherals requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for MB95F354EWQN-G-SNE1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability microcontrollers and mixed-signal ICs for automotive, industrial, and consumer applications.

The MB95350L Series targets cost-optimized, low-power 8-bit control in space-constrained automotive modules - emphasizing LIN integration, Flash security, and robust clock supervision for functional safety.

FAQ

What is the maximum machine clock frequency supported by MB95F354EWQN-G-SNE1?

The device supports a maximum machine clock frequency of 16.25 MHz when using the external clock source (up to 32.5 MHz input divided by 2). With main OSC, max machine clock is 8.125 MHz. The sub-CR clock (50–200 kHz) is used for low-power timing functions like watchdog and time-base timer.

Does MB95F354EWQN-G-SNE1 support in-system programming via its on-chip debug interface?

Yes - it supports 1-wire asynchronous serial programming through the DBG pin (P12/EC0/DBG). This enables flash erase, write, and verification without removing the device from the board, using standard UART-level voltage levels and no external debugger hardware beyond a simple level shifter.

Can the two I²C channels operate simultaneously while one is configured as UART/SIO?

No - only one of the two I²C channels (SCL0/SDA0 or SCL1/SDA1) can be active at a time. When SCL1/SDA1 is assigned to LIN-UART, SCL0/SDA0 remains fully functional as a dedicated I²C bus. The UART/SIO channel is mutually exclusive with its paired I²C function on the same pin group.

What is the minimum supply voltage for reliable operation with the on-chip debug function enabled?

When on-chip debug is active, the minimum operating voltage is 3.0 V (per Electrical Characteristics Table on page 25 of Rev. *A datasheet). Below 3.0 V, debug functionality is disabled to prevent corruption; normal application operation remains valid down to 2.7 V with debug disabled.