CY90F543GPF-GE1 - 16-bit F²MC-16LX MCU, 128KB Flash, 100-QFP | Infineon
MPN: CY90F543GPF-GE1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.37 | $12.37 |
| 10 | $11.5 | $115.00 |
| 100 | $9.8 | $980.00 |
| 500 | $8.75 | $4,375.00 |
| 1,000 | $7.95 | $7,950.00 |
CY90F543GPF-GE1 Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash/ROM), working memory (RAM), and programmable peripherals. It belongs to the hierarchy: microcontroller -> embedded processor -> system-on-chip -> semiconductor. Within the 16-bit MCU tier, the F²MC-16LX architecture bridges 8-bit legacy designs and 32-bit ARM Cortex-M devices, offering deterministic interrupt handling and rich timer/counter resources that engineers favored for automotive body controllers in the 2000s.
Key features of the CY90F543GPF-GE1 include 128KB (128K x 8) embedded Flash for program storage, 16-bit data path width, and 16MHz maximum CPU clock supporting up to ~8 MIPS throughput. The 100-QFP (14x20 mm) package provides generous I/O access for legacy parallel buses, CAN/LIN peripherals, and analog channels, while the -40C to +105C operating temperature range targets under-hood and industrial cabinet environments. The Cypress 'CY' prefix denotes the Cypress legacy product line that has been carried into the Infineon catalog following the 2020 acquisition.
From an architectural perspective, the F²MC-16LX core uses a CISC-style instruction set optimized for embedded control with hardware multiply/divide and a multi-channel DMA engine. The MB90540G series integrates CAN, UART, timers, A/D converters, and GPIO into a single die, eliminating external glue logic in automotive body and chassis applications.
Typical applications include automotive body control modules, instrument clusters, HVAC controllers, industrial PLCs, and white-goods motor controllers. Designers select this family for proven long-term supply and stable firmware toolchains (Softune Workbench).
When designing with this part, verify the variant's peripheral mix against the CY90F543GPFR-GE1 (tape-and-reel) and CY90F543PF-GE1 (lower-pin alternative) before committing to a footprint. The device is in active distribution but is generally considered legacy; verify lifecycle status with Infineon for new designs.
This page synthesizes distributor pricing, drop-in alternates from the same MB90540G family, and practical migration notes not found in the standalone datasheet.
Drop-in alternatives for CY90F543GPF-GE1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with CY90F543GPF-GE1 (same form factor and footprint) — differing in Data Bus Width, Program Memory Size, Program Memory Type, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
CY90F543GPFR-GE1
✅ Drop-In📋 Reference alternative (not in catalog)
CY90F543GSPFR-GE1
✅ Drop-In✓ In Stock
$11.95 / Unit
View Datasheet →CY90F598GPFR-GE1
✅ Drop-In📋 Reference alternative (not in catalog)
CY90F543GPF-GE1 Maximum Ratings & Electrical Characteristics
| Core Processor | F²MC-16LX |
| Series | F²MC-16LX MB90540G |
| Data Bus Width | 16-bit |
| Core Speed | 16 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| Program Memory Type | FLASH |
| Package | 100-QFP (14x20 mm), 100-BQFP |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40°C to +105°C (TA) |
| Supplier Package | Tray |
| Manufacturer | Infineon (legacy Cypress Semiconductor) |
| Family | MB90540G automotive MCU |
| Peripherals | CAN, UART, Timers, A/D Converter (per family datasheet) |
| AEC-Q100 | Automotive qualified (per family) |
| RoHS Status | Compliant (per LCSC listing) |
CY90F543GPF-GE1 tray Pin Configuration Guide
Pin configuration for CY90F543GPF-GE1 (tray package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for CY90F543GPF-GE1.
Refer to the datasheet for full pin configuration.
Typical Applications
CY90F543GPF-GE1 is suitable for 6 applications: Automotive Body Control Module, Instrument Cluster Driver, HVAC Control Unit, Industrial PLC and Motor Controller, White Goods Motor Controller, Chassis and Powertrain Peripheral Controller.
Automotive Body Control Module
The CY90F543GPF-GE1 fits automotive body control modules because its F²MC-16LX core integrates CAN and UART peripherals on-die, eliminating external transceivers for low-speed body networks. At 16MHz and 128KB Flash, the MCU comfortably runs lighting, door-lock, and wiper control firmware with deterministic interrupt handling. The -40C to +105C automotive temperature grade supports under-dash and under-hood mounting, while the 100-QFP package provides the wide I/O count needed for multi-load driver interfaces. Designers should pair the MCU with a CAN transceiver such as the TLE7250-3GE and use the integrated A/D channels for switch and sensor feedback. This combination has been field-proven in OEM body controllers throughout the 2010s.
Recommended
Instrument Cluster Driver
Instrument clusters benefit from the CY90F543GPF-GE1's 16-bit data path and 16MHz throughput, which drive gauge stepper motors and segment-LCD glass without external driver ICs. The 128KB Flash holds gauge calibration tables, warning-light logic, and CAN message parsing for vehicle bus data, while the integrated timers generate the PWM signals for needle and gauge control. The 100-QFP footprint accommodates the wide parallel bus to the cluster's display and indicator LEDs. Automotive -40C to +105C operation ensures reliable pointer and backlight behavior from cold-start Canadian winters to desert heat soak.
Recommended
HVAC Control Unit
HVAC controllers rely on the CY90F543GPF-GE1's combination of A/D converters, PWM timers, and CAN/LIN interfaces to read temperature sensors and drive blower/valve actuators. The 128KB Flash stores the climate-control algorithm and OEM calibration maps, while 16-bit math handles proportional-integral control loops without floating-point overhead. The 100-QFP package exposes sufficient GPIO for keypad inputs, mode-door feedback, and LCD status display. Automotive temperature grade supports engine-bay-adjacent mounting where ambient swings from -40C cold-soak to +85C soak are routine.
Recommended
Industrial PLC and Motor Controller
The CY90F543GPF-GE1's deterministic F²MC-16LX core and hardware timers suit small industrial PLCs controlling conveyor motors, solenoid valves, and packaging machinery. The 16-bit data path accelerates ladder-logic execution versus legacy 8-bit PLCs, while 128KB Flash stores ladder programs and HMI menu strings. The 100-QFP package allows direct PCB routing of opto-isolated 24V I/O without buffer ICs. The -40C to +105C operating range handles unconditioned factory cabinets. The Softune Workbench toolchain supports C and assembly for code portability across the broader F²MC-16LX family.
Recommended
White Goods Motor Controller
Washing machines, dishwashers, and dryers embed F²MC-16LX MB90540G MCUs like the CY90F543GPF-GE1 to drive BLDC and universal motors for drum and pump control. The integrated timers generate the complementary PWM and capture motor back-EMF, while 128KB Flash holds wash-cycle algorithms and diagnostic logs. The 100-QFP package provides the wide I/O count for keypad, buzzer, door-lock, and water-level sensor interfaces. The -40C to +105C range survives the thermal stress of motor-compartment mounting and the humidity of laundry environments when conformal coating is applied.
Recommended
Chassis and Powertrain Peripheral Controller
The CY90F543GPF-GE1 functions as a satellite ECU in distributed chassis architectures, handling tasks like active suspension sensor conditioning, electric power-steering assist monitoring, or transmission shift-by-wire feedback. The F²MC-16LX core's deterministic interrupt latency ensures sensor-to-CAN communication within millisecond budgets, and 128KB Flash accommodates calibration tables per vehicle variant. The integrated CAN controller interfaces directly to the chassis CAN bus at 500 kbps. The 100-QFP package and -40C to +105C grade support harsh under-body mounting near wheel wells and exhaust manifolds.
Recommended
Recommended Products Summary
Engineering reference data for CY90F543GPF-GE1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | CY90F543GPFR-GE1 | CY90F543GSPFR-GE1 | CY90F598GPFR-GE1 |
|---|---|---|---|---|
| Package | 100-QFP (14x20) | 100-QFP (14x20) - same | 100-QFP (14x20) - same | 100-QFP (14x20) - same |
| Brand | Infineon | Infineon - same | Infineon - same | Infineon - same |
| Core | F²MC-16LX | F²MC-16LX - same | F²MC-16LX - same | F²MC-16LX - same |
| Core Speed | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Flash Size | 128 KB | 128 KB | 128 KB base | Higher (per family datasheet) |
| Data Bus Width | 16-bit | 16-bit | 16-bit | 16-bit |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
| Packaging | Tray (-GE1) | Tape & Reel | Tape & Reel | Tape & Reel |
Key Differentiators
- Automotive-grade F²MC-16LX MCU with proven long-term supply (vs CY90F598GPFR-GE1)
- Standard tray packaging for hand-prototype builds (vs CY90F543GPFR-GE1)
- Wide I/O count with full automotive temperature range (vs CY90F543PF-GE1)
Design Notes
Estimated: at 5V VCC and a typical 16-bit F²MC-16LX active current of 30 mA, the CY90F543GPF-GE1 dissipates roughly 0.15 W. The 100-QFP (14x20 mm) package has a typical theta_JA near 50-60 C/W on a 4-layer JEDEC test board, yielding a junction-to-ambient rise of 8-10 C - well within the 125 C junction limit at 105 C ambient. For sealed enclosures without convection, derate by adding thermal vias under the exposed die pad or specifying a copper pour on top and bottom layers. Always verify with the manufacturer's thermal characterization in the family datasheet before final layout.
Route the F²MC-16LX debug pins (MDATA, MDO, MDI, X0/X1) as short, impedance-controlled traces and keep them isolated from switching power and CAN bus traces to avoid debug-session glitches. Place the 100-QFP decoupling network as 100 nF X7R capacitors within 3 mm of each power pin, plus a single 10 uF bulk capacitor per supply rail. Use a guard ring around the crystal oscillator pins and route the oscillator traces as a matched-length differential pair with a continuous ground plane beneath. For CAN bus applications, keep the CANH/CANL traces as an impedance-matched differential pair (120 ohm) without stubs.
Do not confuse the -GE1 tray variant with the -GE1R tape-and-reel variant when ordering for SMT lines - both share identical silicon, but the wrong packaging suffix delays production. Verify the family datasheet for the precise Flash/RAM split before committing firmware; MB90540G variants differ in peripheral mix (CAN count, A/D channel count, timer count). The F²MC-16LX core requires Softune Workbench or a compatible compiler - GCC ports exist but are not officially supported by Infineon for all derivatives. Finally, the MB90540G family is considered legacy; confirm lifecycle status with Infineon before committing to a 5-year production run.
Compliance Information
RoHS compliance confirmed via LCSC and distributor listings. AEC-Q100 qualification asserted by family datasheet. Halogen-free status not stated in the publicly available excerpt.
