Infineon Technologies MB95F634KPMC-G-SNE2

Overview

MB95F634KPMC-G-SNE2 from Infineon Technologies (formerly Cypress) is an 8-bit Flash microcontroller based on the F2MC-8FX CPU core, featuring 20 KB on-chip Flash, 1 KB RAM, 29 I/O ports (25 CMOS + 4 N-ch open-drain), and integrated peripherals including dual 8/16-bit composite timers, 8/10-bit 8-channel ADC, LIN-UART, I²C, UART/SIO, multi-pulse generator for DC motor control, and hardware/software watchdog timers. It operates at up to 16.25 MHz machine clock and supports four low-power standby modes.

For engineers reviewing the MB95F634KPMC-G-SNE2 datasheet, MB95F634KPMC-G-SNE2 pinout, MB95F634KPMC-G-SNE2 application, or MB95F634KPMC-G-SNE2 equivalent, key selection criteria include Flash memory size (20 KB), ADC resolution (8/10-bit selectable), LIN-UART support with master/slave capability, multi-pulse generator integration for motor timing, and LQFP32 package compatibility with debug interface via single-wire serial control.

Technical Context

The MB95F634KPMC-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 features dual-bank Flash memory enabling concurrent read and program/erase operations, plus a clock supervisor counter that monitors both main (up to 16.25 MHz) and subclock (32.768 kHz or 100 kHz CR) oscillation stability.

Its peripheral set includes a dedicated multi-pulse generator (MPG) with 16-bit PPG timer, 16-bit reload timer, event counter, and waveform sequencer - all optimized for closed-loop DC motor control. The LIN-UART channel supports configurable baud rates, full-duplex double-buffered transfer, and LIN 2.0-compliant master/slave operation without external transceiver dependency.

Key Specifications

Pinout & Package

LQFP32 (32-pin Low-Profile Quad Flat Package, 7 mm × 7 mm, 0.8 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MB95F633K and MB95F636K, the MB95F634K offers optimal balance: sufficient Flash (20 KB) for feature-rich motor control firmware while maintaining lower cost than the 36 KB variant and higher headroom than the 12 KB version - ideal for mid-tier industrial and automotive ECUs.

Availability

MB95F634KPMC-G-SNE2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart appliance management, and medical device subsystems requiring stable component supply, long-term lifecycle support, and qualified automotive-grade traceability.

Supply support for MB95F634KPMC-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

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and industrial control solutions, with global R&D and manufacturing infrastructure.

The CY95630H Series - now part of Infineon's legacy 8-bit MCU portfolio - was originally designed for cost-effective, low-power embedded control in automotive body electronics and industrial actuators where LIN connectivity and motor timing precision are essential.

FAQ

Does MB95F634KPMC-G-SNE2 support in-system programming via its single-wire debug interface?

Yes. The MB95F634KPMC-G-SNE2 supports full in-system programming (ISP) and debugging through the P12/DBG pin using Infineon's CY8CKIT-002 MiniProg3 or compatible programmers. Firmware can be updated without removing the device from the PCB, and the 1-wire interface requires only Vcc, Vss, DBG, and reset connections - no additional pins or level shifters.

What is the maximum operating frequency of the main oscillator, and how does it relate to machine clock speed?

The main oscillator supports up to 16.25 MHz crystal or external clock input, which directly defines the maximum machine clock frequency. When using the main oscillation clock, the machine clock equals the input frequency; when using external clock mode, the machine clock can reach 16.25 MHz. PLL modes (e.g., CR+PLL) generate 8/10/12/16 MHz clocks with ±2% tolerance, but these are derived from the 4 MHz CR source, not the main oscillator.

Can the on-chip 8/10-bit ADC operate concurrently with PWM generation from the PPG timers?

Yes. The ADC and PPG peripherals operate independently on separate clock domains. The ADC can be triggered by software, timer overflow, or external events (e.g., PPG0 output), and conversion results are stored in dedicated registers without CPU intervention. This enables synchronized sampling of motor current during PWM on-time, critical for accurate field-oriented control.

Is the LIN-UART interface compliant with ISO 17987-4 (LIN Physical Layer) without external components?

No. While the LIN-UART peripheral implements full protocol handling (header detection, checksum, scheduling), it requires an external LIN transceiver (e.g., TLE7259-3GE) to meet ISO 17987-4 electrical specifications. The MCU drives the transceiver's IN pin and receives from its OUT pin; the transceiver handles bus voltage level shifting, slew rate control, and fault protection.