Infineon Technologies MB95F318E-CHIP32

Overview

MB95F318E-CHIP32 from Cypress Semiconductor is an 8-bit F2MC-8FX microcontroller with 60 KB Flash, 2032 bytes RAM, 71 I/O ports (68 CMOS + 3 N-ch open drain), 4-channel 8/10-bit ADC, and integrated LCD controller supporting 40 SEG × 4 COM. It operates at up to 16.25 MHz machine clock using main PLL or external clock, and targets embedded control in industrial HMI and appliance panels.

For engineers reviewing the MB95F318E-CHIP32 datasheet, MB95F318E-CHIP32 pinout, MB95F318E-CHIP32 application, or MB95F318E-CHIP32 equivalent, key selection criteria include Flash capacity (60 KB), LCD drive capability (40×4), standby mode support (Stop/Sleep/Watch/Time-base), UART/SIO dual-channel full-duplex operation, and on-chip debug via 1-wire serial interface.

Technical Context

The MB95F318E-CHIP32 implements the F2MC-8FX CPU core with 136 basic instructions, 8-bit instruction width, and 1–3 byte variable-length encoding. It supports 16-bit arithmetic, bit manipulation, multiplication/division, and bit-test branch operations - enabling efficient real-time control logic execution.

Its peripheral set includes two 8/16-bit composite timers (configurable as 8-bit ×2 or 16-bit ×1), one 16-bit reload timer, two 8/16-bit PPG channels, one I²C master/slave interface, two UART/SIO channels with NRZ format and double-buffered full-duplex transfer, and a dedicated LCD controller with internal divider resistors and blinking function.

Key Specifications

Pinout & Package

MB95F318E-CHIP32 is supplied in FPT-80P-M37 - an 80-pin fine-pitch thin QFP package with 0.5 mm pitch, 12 mm × 12 mm body, and exposed thermal pad. Pin assignments are defined per the MB95310L Series datasheet (Document 002-07519 Rev. *A), with dedicated pins for main/sub clocks, reset, VDD/VSS, LCD bias, ADC inputs, UART/SIO, I²C, timers, and general-purpose I/O.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MB95F316E and MB95F314E, the MB95F318E-CHIP32 provides 60 KB Flash and 2032 bytes RAM - enabling richer UIs, larger calibration datasets, and future firmware updates without hardware revision, while maintaining full pin and peripheral compatibility within the MB95310L series.

Availability

MB95F318E-CHIP32 is available at Aetrix Electronics and suitable for industrial HMI panels, home appliance control units, smart meter front ends, and portable medical device interfaces requiring stable component supply and long-term lifecycle support.

Supply support for MB95F318E-CHIP32 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 industrial, automotive, and consumer applications, with emphasis on integration, low-power operation, and embedded security.

The MB95310L Series was developed specifically for cost-sensitive, display-intensive embedded control applications requiring integrated LCD drivers, multiple communication interfaces, and robust low-power modes - targeting appliances, meters, and industrial operator panels.

FAQ

What is the maximum operating frequency of the MB95F318E-CHIP32?

The MB95F318E-CHIP32 achieves a maximum machine clock frequency of 16.25 MHz using the main PLL clock or external clock source. Its minimum instruction execution time is 61.5 ns under this condition. The main OSC clock supports up to 16.25 MHz, but limits machine clock to 8.125 MHz unless PLL is enabled.

Does MB95F318E-CHIP32 support in-circuit debugging?

Yes - it features a 1-wire serial on-chip debug interface supporting asynchronous serial writing and real-time debugging without halting program execution. This interface requires only one dedicated pin and does not conflict with standard I/O or communication peripherals during normal operation.

Can the LCD controller drive custom segment layouts beyond 40×4?

No - the integrated LCDC is fixed at 40 SEG × 4 COM (160 pixels) for MB95F318E-CHIP32. Segment and common outputs are mapped to specific port pins (e.g., P50–P57 for SEG0–SEG7, P60–P63 for COM0–COM3), and no reconfiguration to alternate resolutions or multiplexing schemes is supported in hardware.

Is Flash memory security enabled by default?

No - Flash security must be explicitly programmed via the embedded algorithm command set after initial firmware load. Once enabled, it prevents external readout of Flash contents and blocks unauthorized erase/write access, but requires careful provisioning during production programming to avoid permanent lockout.