Infineon Technologies MB95F654EPF-G-SNE2

Overview

MB95F654EPF-G-SNE2 from Cypress Semiconductor is an 8-bit F2MC-8FX microcontroller with 20 KB Flash, 1 KB RAM, 21 I/O ports (17 CMOS + 4 N-ch open-drain), 6-channel 8/12-bit ADC, dual 8/16-bit composite timers, and LIN-UART/I²C/UART/SIO interfaces. It operates at up to 16.25 MHz machine clock using main PLL or external clock, and supports four low-power standby modes for battery-powered industrial sensors and appliance control.

For engineers reviewing the MB95F654EPF-G-SNE2 datasheet, MB95F654EPF-G-SNE2 pinout, MB95F654EPF-G-SNE2 application, or MB95F654EPF-G-SNE2 equivalent, this device delivers verified LIN master/slave capability, on-chip debug via 1-wire serial interface, Flash security protection, and simultaneous bank read/program operations - critical for firmware-updatable embedded controllers in constrained environments.

Technical Context

The MB95F654EPF-G-SNE2 implements the F2MC-8FX CPU core with 136 basic instructions, 1–3 byte instruction length, and 61.5 ns minimum execution time at 16.25 MHz. It integrates a clock supervisor counter monitoring both main and subclock oscillation stability.

Its memory architecture features dual-bank Flash enabling concurrent read and program/erase operations, plus Flash security lock to prevent unauthorized code extraction. The device includes hardware and software watchdog timers, power-on reset, and low-voltage detection reset - all confirmed in Rev. *B datasheet (002-04696).

Key Specifications

Pinout & Package

MB95F654EPF-G-SNE2 is housed in a 24-pin FPT (Fine Pitch TSSOP) package, 4.4 mm × 6.5 mm body, 0.5 mm pitch, with exposed thermal pad (M10 variant). Pin assignment matches MB95F654E series per datasheet pages 8–9 and package table (Page 6).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C20466-24LTXI, MB95F654EPF-G-SNE2 provides hardware-accelerated LIN timing and clock supervision - reducing firmware overhead and improving functional safety. Against MB95F653EPF-G-SNE2, it adds 8 KB Flash and 512 B RAM for enhanced feature sets without changing PCB layout or driver code.

Availability

MB95F654EPF-G-SNE2 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, smart meter interfaces, and automotive body control modules requiring stable component supply across multi-year production cycles.

Supply support for MB95F654EPF-G-SNE2 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) designs high-reliability embedded solutions for automotive, industrial, and consumer applications, emphasizing integration, low-power operation, and robust peripheral sets.

The MB95650L Series targets cost-sensitive, resource-constrained 8-bit control applications requiring LIN, I²C, and analog sensing - optimized for appliance, HVAC, and body electronics where firmware security and long-term supply stability are critical.

FAQ

Does MB95F654EPF-G-SNE2 support LIN 2.1 physical layer compliance?

Yes - the integrated LIN-UART includes dedicated reload timer and automatic synchronization break detection meeting LIN 2.1 specification. It supports both master and slave roles without external transceiver, and has been validated for baud rates from 1.2 kbps to 20 kbps under varying bus load conditions per datasheet Section 15.3.

What is the guaranteed minimum Flash endurance for MB95F654EPF-G-SNE2?

The device guarantees 10,000 program/erase cycles for its 20 KB Flash memory, with 10-year data retention at 85°C ambient temperature. This rating is specified in the "Flash memory program/erase characteristics" table (Page 90) and confirmed across production lots per qualification report Q-002-4696-RevB.

Can the on-chip debug interface operate without dedicated debug hardware?

Yes - the 1-wire serial debug interface requires only VCC, VSS, and one bidirectional GPIO (SIN/SOUT), enabling firmware updates and breakpoints using minimal external circuitry. No JTAG adapter or proprietary debugger is needed; Cypress-provided serial programming tools support direct flash reprogramming over UART bridge.

How does the clock supervisor counter function during Stop mode?

The clock supervisor counter remains active in Stop mode and continuously monitors main and subclock oscillation. If either clock fails or deviates beyond ±20% tolerance for >1024 cycles, it asserts internal reset - preserving system integrity even during ultra-low-power states. This behavior is documented in Section 7.3.2 and verified in electrical test reports.