Infineon Technologies CY95F636KNWQN-G-118-UNE1

Overview

CY95F636KNWQN-G-118-UNE1 from Infineon Technologies (formerly Cypress) is an 8-bit Flash microcontroller based on the F2MC-8FX CPU core, featuring 36 KB flash memory, 1024 bytes 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 CY95F636KNWQN-G-118-UNE1 datasheet, CY95F636KNWQN-G-118-UNE1 pinout, CY95F636KNWQN-G-118-UNE1 application, or CY95F636KNWQN-G-118-UNE1 equivalent, key selection criteria include its QFN32 (WNP032) package, LIN master/slave capability, dual-bank Flash for concurrent read/program, and built-in low-voltage detection reset - critical for automotive body electronics and industrial motor control designs.

Technical Context

The device implements a dedicated LIN-UART peripheral with full-duplex double buffer, programmable baud rate via reload timer, and support for both LIN master and slave roles - enabling direct integration into automotive sub-networks without external transceivers. Its multi-pulse generator includes a waveform sequencer with buffered 16-bit timer and compare-clear function, optimized for precise timing of multi-phase DC motor commutation.

The F2MC-8FX core delivers deterministic interrupt response (0.6 µs min at 16.25 MHz), 136-instruction set with bit manipulation and 16-bit arithmetic, and hardware/software watchdog timers. Clock supervision covers both main (up to 16.25 MHz) and subclock (32.768 kHz or 100 kHz CR) domains, with configurable detection/release thresholds for low-voltage reset on K-series variants.

Key Specifications

Pinout & Package

Package: WNP032 - 32-pin QFN, 5 mm × 5 mm body, 0.5 mm pitch, exposed thermal pad (EPAD) connected to VSS for thermal management and noise reduction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RL78/F12 and MC9S08AC60CFGE, CY95F636KNWQN-G-118-UNE1 provides hardware LIN protocol handling and dedicated motor timing logic in a single chip - reducing BOM count by two ICs and eliminating timing jitter from software-based frame generation.

Availability

CY95F636KNWQN-G-118-UNE1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, smart appliance control units, and battery-powered sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for CY95F636KNWQN-G-118-UNE1 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 microcontrollers, and security solutions.

This device belongs to the CY95630H Series - Infineon's legacy 8-bit microcontroller family designed for cost-sensitive, real-time control applications in automotive body electronics and industrial equipment where hardware-peripheral integration reduces system complexity.

FAQ

What is the maximum machine clock frequency supported by CY95F636KNWQN-G-118-UNE1?

The device supports a maximum machine clock frequency of 16.25 MHz, achieved when using the external clock source at 32.5 MHz with divide-by-2 prescaler. This timing governs instruction execution, peripheral counter clocks, and interrupt latency - all specified in the AC Characteristics table (Section 18.4) of the datasheet.

Does CY95F636KNWQN-G-118-UNE1 include a hardware LIN physical layer?

No, it integrates only the LIN protocol controller (LIN-UART), not the physical transceiver. An external LIN PHY such as TJA1020 or MCP2021 is required for bus-level signaling. The LIN-UART handles frame formatting, checksum calculation, and synchronization - offloading 85% of protocol processing from firmware.

How many I/O pins support analog input functionality?

Eight pins (P00–P07) serve as analog inputs for the 8-channel 8/10-bit ADC. Each pin supports both analog acquisition and digital I/O functions, with dedicated internal routing to the ADC sample-and-hold circuit. Input voltage range is 0 V to VCC, with 10-bit resolution providing 4.88 mV LSB at 5 V supply.

Is the Flash memory security feature enabled by default after programming?

No, Flash security must be explicitly activated via the Flash security lock bit during programming. Once set, it prevents read-out of Flash contents and disables serial programming until a full chip erase is performed. Security activation is irreversible and requires dedicated programming tools compliant with Cypress/Infineon's Embedded Algorithm protocol.