Infineon Technologies CY96F685RBPMC-GS-UJE1

Overview

CY96F685RBPMC-GS-UJE1 from Infineon Technologies (formerly Cypress) is a 16-bit F2MC-16FX microcontroller with integrated CAN 2.0A/B controller, 128.5KB flash, 64.5KB RAM, and 63 I/O pins in an 80-pin LQFP package. It features an on-chip PLL enabling 32MHz CPU operation from a 4–8MHz resonator, 14-channel 8/10-bit SAR ADC, dual-operation flash, and hardware watchdog timer. It targets automotive body control modules requiring real-time CAN communication and motor control.

For engineers reviewing the CY96F685RBPMC-GS-UJE1 datasheet, CY96F685RBPMC-GS-UJE1 pinout, CY96F685RBPMC-GS-UJE1 application, or CY96F685RBPMC-GS-UJE1 equivalent, key selection criteria include CAN bit-rate support up to 1 Mbps, 32-message object buffer depth, sub-31.2ns instruction cycle time, low-voltage detection down to 2.7V, and dual-bank flash for seamless firmware updates during runtime.

Technical Context

The CY96F685RBPMC-GS-UJE1 implements the F2MC-16FX RISC-like architecture with 8-byte instruction queue, signed multiply/divide instructions, and 23 addressing modes optimized for embedded control. Its clock tree supports independent domain selection-CPU, peripheral, and subsystem clocks-enabling simultaneous high-speed computation and low-power peripheral operation.

It integrates a certified ISO16845 CAN controller with programmable FIFO mode, loop-back self-test, and disabled automatic retransmission for time-triggered applications. The stepping motor controller includes two synchronized 8/10-bit PWM channels per SMC unit, dedicated DVcc supply, and internal prescaling options (1/4 to 1/16) for precise torque control.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit CAN microcontroller applications.

Compared with SPCE560B50L5 and RL78/F13, CY96F685RBPMC-GS-UJE1 delivers unique integration of CAN, LCD, and stepping motor control in a single LQFP-80 package-reducing PCB area by ~35% and eliminating 14+ external components in body electronics designs.

Availability

CY96F685RBPMC-GS-UJE1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial stepper drives, smart HVAC panels, and medical infusion pump UIs requiring stable component supply, long lifecycle support, and qualified automotive-grade sourcing.

Supply support for CY96F685RBPMC-GS-UJE1 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 ICs, and security solutions, with global manufacturing and quality certification to IATF 16949 and AEC-Q100 standards.

The CY96F685RBPMC-GS-UJE1 belongs to the CY96680 series-designed specifically for cost-sensitive, safety-aware automotive body electronics where integration of CAN, motor control, and human interface peripherals reduces system complexity and validation effort.

FAQ

What is the maximum operating temperature range for CY96F685RBPMC-GS-UJE1?

The CY96F685RBPMC-GS-UJE1 is rated for industrial temperature range −40°C to +85°C, validated per AEC-Q100 Grade 2 requirements. Its on-chip voltage regulator and thermal shutdown circuitry maintain stable operation across this range without derating, and the internal RC oscillator retains ±2% accuracy from −40°C to +85°C with calibration enabled.

Does CY96F685RBPMC-GS-UJE1 support CAN FD or only classical CAN?

CY96F685RBPMC-GS-UJE1 supports only classical CAN 2.0A/B protocol up to 1 Mbps-not CAN FD. Its message object buffer, identifier filtering, and bit-timing registers align strictly with ISO 11898-1:2003. For CAN FD migration paths, Infineon recommends the AURIX™ TC3xx family, which provides native CAN FD controllers with flexible data-rate switching.

How is flash security implemented on this microcontroller?

Flash security uses a dedicated lock-bit mechanism that disables external read access via serial programming interface and prevents JTAG/OCD readout of flash contents. Once enabled, security cannot be cleared without full chip erase. The boot ROM enforces security checks before executing user code, and low-voltage detection during write/erase operations prevents corruption-induced security bypass.

Can the LCD controller drive a 4COM × 40SEG display?

No-the integrated LCD controller supports up to 4COM × 32SEG (128 segments), not 40SEG. Driving more than 32 segments would require external segment drivers or multiplexing expansion. The controller's internal memory maps exactly 128 segment bits, and attempts to configure beyond SEG12/SEG39/SEG42/SEG45/SEG52–56 result in undefined behavior per Section 17 of the datasheet.