Infineon Technologies CY95F634KNPMC-G-UNE2

Overview

CY95F634KNPMC-G-UNE2 from Infineon Technologies (formerly Cypress) is an 8-bit Flash microcontroller based on the F2MC-8FX CPU core, featuring 20 KB flash memory, 1 KB RAM, and integrated LIN-UART, I²C, UART/SIO, 8/10-bit ADC (8 channels), and multi-pulse generator for DC motor control. It operates at up to 16.25 MHz machine clock and supports four low-power standby modes including deep standby.

For engineers reviewing the CY95F634KNPMC-G-UNE2 datasheet, CY95F634KNPMC-G-UNE2 pinout, CY95F634KNPMC-G-UNE2 application, or CY95F634KNPMC-G-UNE2 equivalent, key selection considerations include its LQFP32 package with 29 I/O ports (25 CMOS + 4 N-ch open-drain), on-chip debug via 1-wire serial interface, dual-bank Flash for concurrent read/program, and built-in clock supervisor counter for main/subclock monitoring.

Technical Context

The device implements the F2MC-8FX CPU core with 136 basic instructions, 1–3 byte instruction length, and 61.5 ns minimum instruction execution time at 16.25 MHz. It integrates a clock supervisor counter that independently monitors both main oscillation (up to 16.25 MHz) and subclock (32.768 kHz or 100 kHz CR) stability.

Peripheral architecture includes three 8/16-bit PPG channels, one 16-bit PPG timer, one 16-bit reload timer, two 8/16-bit composite timers, and a dedicated multi-pulse generator with waveform sequencer - all supporting DC motor control with synchronized PWM, trigger start, and buffer-equipped compare-clear timing.

Key Specifications

Pinout & Package

LQFP32 (LQB032) package with 32-pin quad flat no-lead outline, 0.8 mm pitch, and exposed thermal pad; suitable for automated SMT assembly and moderate-power embedded control applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY95F634KNPMC-G-UNE2, the RL78/G13 offers higher performance and memory but requires external LIN transceiver, while the STM8AF6266TAY provides AEC-Q100 qualification and native LIN PHY-making it suitable for harsher environments but less optimized for cost-sensitive industrial motor control where CY95F634K's MPG and dual-bank Flash deliver direct design value.

Availability

CY95F634KNPMC-G-UNE2 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, smart appliance control, and medical pump systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for CY95F634KNPMC-G-UNE2 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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and security solutions with strong industrial and automotive market presence.

This device belongs to the CY95630H Series - a family of general-purpose 8-bit microcontrollers designed specifically for cost-sensitive, low-power embedded control applications requiring integrated motor timing, LIN communication, and robust on-chip supervision.

FAQ

What is the maximum operating frequency of the CY95F634KNPMC-G-UNE2?

The CY95F634KNPMC-G-UNE2 supports an external clock input up to 32.5 MHz, yielding a maximum machine clock frequency of 16.25 MHz. When using the main CR PLL clock, selectable frequencies include 8 MHz, 10 MHz, 12 MHz, and 16 MHz ±2%, all derived from a 4 MHz ±2% internal CR oscillator.

Does this MCU support in-system programming via a single pin?

Yes - the device features 1-wire on-chip debug (pin P12/DBG/EC0), enabling serial programming and debugging using only one dedicated pin plus Vcc and Vss. This eliminates the need for multi-pin debug headers and reduces PCB routing complexity during development and field updates.

Is low-voltage detection (LVD) available on CY95F634KNPMC-G-UNE2?

Yes - the "K" suffix variant (CY95F634K) includes a built-in low-voltage detection reset circuit with four selectable combinations of detection and release voltages. This feature ensures reliable reset behavior during brown-out conditions without external supervisory ICs.

How many I/O pins support analog input and external interrupt simultaneously?

All eight P0x pins (P00–P07) support both analog input (AN00–AN07) and external interrupt (INT00–INT07) functions. Each pin can be configured independently for ADC sampling or edge-triggered wake-up, enabling flexible mixed-signal sensing and low-power event-driven operation.