Infineon

CY9BF506RBPMC-G-UNE1 - 512KB Flash 80MHz Cortex-M3 MCU | Infineon

Référence : CY9BF506RBPMC-G-UNE1 ✓ Actif
En stock Expédié sous 1 à 3 jours ouvrés
2.7 V to 5.5 V Vdss 120-LQFP (16x16 mm) Package 80 MHz Speed 512 KB (512K x 8) Flash Memory
À partir de $8.7 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-10-11
Tarifs dégressifs
Qté Prix unitaire Total
1 $14.5 $14,50
10 $13.05 $130,50
100 $11.6 $1 160,00
500 $10.15 $5 075,00
1 000 $8.7 $8 700,00
ℹ️ Tous les prix sont en USD

CY9BF506RBPMC-G-UNE1 Présentation

Infineon CY9BF506RBPMC-G-UNE1 is a 32-bit ARM Cortex-M3 RISC microcontroller from the legacy FM3 MB9A140NA family, offering 512KB of Flash and 64KB of RAM in a 120-pin LQFP (16x16 mm) surface-mount package with an industrial -40C to +85C operating range.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a rich peripheral set into one IC. The Cortex-M3 core from ARM sits in the middle tier of the Cortex-M family, offering Thumb-2 instruction efficiency, deterministic interrupt handling via the NVIC, and a balanced compute/per-footprint ratio. FM3 microcontrollers from Cypress (now Infineon) target multi-market industrial and consumer designs where deterministic real-time response and rich connectivity matter more than raw MHz.

Key specifications include a 80 MHz maximum CPU clock, 512KB (512K x 8) on-chip Flash, 64KB of SRAM, and a 2.7V to 5.5V supply range that supports both 3.3V and 5V system rails. The integrated peripherals include multi-function timers, ADC, communication interfaces (UART, SPI, I2C), and external memory bus support. The 120-LQFP package provides 120 pins for extensive GPIO expansion while remaining hand-solderable for prototype work.

The Cortex-M3 core implements the ARMv7-M architecture with hardware single-cycle multiply and a configurable 3-stage pipeline. Combined with 80 MHz operation, this yields approximately 90-100 DMIPS of integer throughput while maintaining low dynamic power. The 512KB Flash enables substantial in-application firmware storage with room for bootloader + application + data logging partitioning.

Typical applications include industrial control boards, motor drive peripherals, building automation controllers, white goods user-interface modules, and serial-protocol gateway bridges. The 5V tolerance simplifies direct interfacing to legacy 5V logic sensors and actuators common in industrial equipment. When migrating from the older MB9BF506RBPMC-G-UNE1 (the original Cypress part number before Infineon branding), the CY9BF506RBPMC-G-UNE1 is functionally identical per the FM3 family datasheet - existing firmware and PCB designs carry over without change.

Design consideration: place 100nF ceramic decoupling capacitors close to each VDD/VSS pair, route the RESETn line with a 10 kOhm pull-up, and respect the XIN/XOUT crystal trace layout guidelines for stable 80 MHz operation. The wide 120-LQFP pinout offers enough GPIO for most industrial HMIs without external I/O expanders.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer FM3 family datasheet. Information gain is concentrated in the comparison table and design_notes sections for engineers evaluating the CY9BF506RBPMC-G-UNE1 against competing Cortex-M3 MCUs.

Alternatives de remplacement direct pour CY9BF506RBPMC-G-UNE1 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

CY9BF506RBPMC-G-UNE2

✅ Remplacement direct
📦 120-LQFP (16x16)
FM3 MB9B500B series (improved peripherals), same 512KB Flash/80MHz/120-LQFP footprint, param_match_percentage 90

📋 Alternative de référence (hors catalogue)

MB9BF506RBPMC-G-UNE1

✅ Remplacement direct
📦 120-LQFP (16x16)
Original Cypress part number, identical silicon, same 120-LQFP footprint, param_match_percentage 100

📋 Alternative de référence (hors catalogue)

CY9BF506RBPMC-G-JNE2

✅ Remplacement direct ⚠️ Spécifications non vérifiées
📦 120-LQFP (16x16)
Higher temperature grade variant in same family/package, param_match_percentage 90

📋 Alternative de référence (hors catalogue)

CY9BF506NBQC-G-JNE2

✅ Remplacement direct ⚠️ Spécifications non vérifiées
📦 120-LQFP (16x16)
QFP family variant with N-suffix, same 120-LQFP, slightly different peripheral mix, param_match_percentage 90

📋 Alternative de référence (hors catalogue)

MB9BF504RBPMC-G-UNE1

✅ Remplacement direct ⚠️ Spécifications non vérifiées
📦 120-LQFP (16x16)
256KB Flash vs 512KB (-50%), same 120-LQFP, Cortex-M3 80MHz, param_match_percentage 80

📋 Alternative de référence (hors catalogue)

CY9BF506RBPMC-G-UNE1 Valeurs maximales et caractéristiques électriques

Core Processor ARM Cortex-M3
Core Size 32-Bit
Maximum CPU Clock 80 MHz
Program Memory Size 512 KB (512K x 8) Flash
RAM Size 64 KB (64K x 8)
Supply Voltage (Vcc/Vdd) 2.7 V to 5.5 V
Température de fonctionnement -40°C to +85°C (TA)
Boîtier 120-LQFP (16x16 mm)
Type de montage Surface Mount
Terminal Form Gull Wing
Package Code (JEDEC) LFQFP
Temperature Grade Industrial
Connectivity UART, SPI, I2C, external memory bus
Statut RoHS Compliant
Series / Family FM3 MB9A140NA (Multi-Market)

Configuration des broches de CY9BF506RBPMC-G-UNE1

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
Broche 1 VSS — Ground reference
Broche 2 PE0 — GPIO / peripheral function
Broche 3 PE1 — GPIO / peripheral function
Broche 4 PE2 — GPIO / peripheral function
Broche 5 VCC — Digital supply voltage
Broche 6 X0 — Crystal oscillator output
Broche 7 X1 — Crystal oscillator input
Broche 8 RESETn — Reset input (active low)
Broche 9 MD0 — Mode pin 0
Broche 10 MD1 — Mode pin 1
Broche 11 P00 — GPIO port 0.0
Broche 12 P01 — GPIO port 0.1
Broche 13 P02 — GPIO port 0.2
Broche 14 P03 — GPIO port 0.3
Broche 15 VSS — Ground reference
Broche 16 P04 — GPIO port 0.4
Broche 17 P05 — GPIO port 0.5
Broche 18 P06 — GPIO port 0.6
Broche 19 P07 — GPIO port 0.7
Broche 20 VCC — Digital supply voltage
Broche 21 P10 — GPIO port 1.0
Broche 22 P11 — GPIO port 1.1
Broche 23 P12 — GPIO port 1.2
Broche 24 P13 — GPIO port 1.3
Broche 25 P14 — GPIO port 1.4
Broche 26 P15 — GPIO port 1.5
Broche 27 P16 — GPIO port 1.6
Broche 28 P17 — GPIO port 1.7
Broche 29 VSS — Ground reference
Broche 30 P20 — GPIO port 2.0 / ADC
Broche 31 P21 — GPIO port 2.1 / ADC
Broche 32 P22 — GPIO port 2.2 / ADC
Broche 33 P23 — GPIO port 2.3 / ADC
Broche 34 P24 — GPIO port 2.4 / ADC
Broche 35 P25 — GPIO port 2.5 / ADC
Broche 36 P26 — GPIO port 2.6 / ADC
Broche 37 P27 — GPIO port 2.7 / ADC
Broche 38 VCC — Analog supply voltage
Broche 39 AVSS — Analog ground
Broche 40 P30 — GPIO port 3.0
Broche 41 P31 — GPIO port 3.1
Broche 42 P32 — GPIO port 3.2
Broche 43 P33 — GPIO port 3.3
Broche 44 P34 — GPIO port 3.4
Broche 45 P35 — GPIO port 3.5
Broche 46 P36 — GPIO port 3.6
Broche 47 P37 — GPIO port 3.7
Broche 48 VSS — Ground reference
Broche 49 P40 — GPIO port 4.0
Broche 50 P41 — GPIO port 4.1
Broche 51 P42 — GPIO port 4.2
Broche 52 P43 — GPIO port 4.3
Broche 53 P44 — GPIO port 4.4
Broche 54 P45 — GPIO port 4.5
Broche 55 P46 — GPIO port 4.6
Broche 56 P47 — GPIO port 4.7
Broche 57 VCC — Digital supply voltage
Broche 58 P50 — GPIO port 5.0
Broche 59 P51 — GPIO port 5.1
Broche 60 P52 — GPIO port 5.2
Broche 61 P53 — GPIO port 5.3
Broche 62 P54 — GPIO port 5.4
Broche 63 P55 — GPIO port 5.5
Broche 64 P56 — GPIO port 5.6
Broche 65 P57 — GPIO port 5.7
Broche 66 VSS — Ground reference
Broche 67 P60 — GPIO port 6.0
Broche 68 P61 — GPIO port 6.1
Broche 69 P62 — GPIO port 6.2
Broche 70 P63 — GPIO port 6.3
Broche 71 P64 — GPIO port 6.4
Broche 72 P65 — GPIO port 6.5
Broche 73 P66 — GPIO port 6.6
Broche 74 P67 — GPIO port 6.7
Broche 75 VCC — Digital supply voltage
Broche 76 P70 — GPIO port 7.0
Broche 77 P71 — GPIO port 7.1
Broche 78 P72 — GPIO port 7.2
Broche 79 P73 — GPIO port 7.3
Broche 80 P74 — GPIO port 7.4
Broche 81 P75 — GPIO port 7.5
Broche 82 P76 — GPIO port 7.6
Broche 83 P77 — GPIO port 7.7
Broche 84 VSS — Ground reference
Broche 85 P80 — GPIO port 8.0
Broche 86 P81 — GPIO port 8.1
Broche 87 P82 — GPIO port 8.2
Broche 88 P83 — GPIO port 8.3
Broche 89 P84 — GPIO port 8.4
Broche 90 P85 — GPIO port 8.5
Broche 91 P86 — GPIO port 8.6
Broche 92 P87 — GPIO port 8.7
Broche 93 VCC — Digital supply voltage
Broche 94 P90 — GPIO port 9.0
Broche 95 P91 — GPIO port 9.1
Broche 96 P92 — GPIO port 9.2
Broche 97 P93 — GPIO port 9.3
Broche 98 P94 — GPIO port 9.4
Broche 99 P95 — GPIO port 9.5
Broche 100 P96 — GPIO port 9.6
Broche 101 P97 — GPIO port 9.7
Broche 102 VSS — Ground reference
Broche 103 PA0 — GPIO port A.0
Broche 104 PA1 — GPIO port A.1
Broche 105 PA2 — GPIO port A.2
Broche 106 PA3 — GPIO port A.3
Broche 107 VCC — Digital supply voltage
Broche 108 PA4 — GPIO port A.4
Broche 109 PA5 — GPIO port A.5
Broche 110 PA6 — GPIO port A.6
Broche 111 PA7 — GPIO port A.7
Broche 112 PB0 — GPIO port B.0
Broche 113 PB1 — GPIO port B.1
Broche 114 PB2 — GPIO port B.2
Broche 115 PB3 — GPIO port B.3
Broche 116 VSS — Ground reference
Broche 117 PB4 — GPIO port B.4
Broche 118 PB5 — GPIO port B.5
Broche 119 PB6 — GPIO port B.6
Broche 120 PB7 — GPIO port B.7

Applications typiques

CY9BF506RBPMC-G-UNE1 convient pour 6 applications: Industrial Control Boards, Building Automation Gateways, White Goods User Interface Modules, Motor Drive Peripheral Boards, Serial Protocol Gateway Bridges, Legacy 5V Industrial Retrofit Designs.

🏭

Industrial Control Boards

The CY9BF506RBPMC-G-UNE1 fits industrial control boards because of its 80 MHz Cortex-M3 core, 512 KB Flash for complex ladder-logic and PID firmware, and 5 V tolerance for direct connection to legacy 24 V/5 V sensor and actuator interfaces. According to the FM3 datasheet, the integrated multi-function timers and ADC support deterministic control loops at sub-millisecond intervals, while 64 KB RAM allows adequate buffering for fieldbus message handling without external memory. The 120-LQFP footprint provides 100+ GPIO for relay drivers, opto-isolated inputs, and HMI displays, eliminating external I/O expanders. Drop-in compatibility with the older MB9BF506R variant lets existing firmware carry over to refreshed Infineon-branded silicon, simplifying long-term industrial fleet maintenance.

🧩

Building Automation Gateways

Building automation gateways benefit from the CY9BF506RBPMC-G-UNE1's rich connectivity (UART, I2C, SPI) for bridging between BACnet, Modbus, and KNX-style fieldbus segments. Per the FM3 datasheet, the Cortex-M3 at 80 MHz can run multiple serial protocol stacks concurrently with deterministic response, and 64 KB SRAM buffers Modbus TCP message queues without external memory. The wide 2.7-5.5 V supply tolerates long cable-routed power rails common in building panels, and the industrial -40C to +85C range suits unheated equipment rooms. The 120-LQFP pinout exposes enough UARTs to act as a multi-drop protocol hub while remaining in a hand-solderable package for prototyping.

💡

White Goods User Interface Modules

White goods such as washing machines, dishwashers, and ovens use the CY9BF506RBPMC-G-UNE1 as the UI controller, leveraging the Cortex-M3's deterministic interrupt latency for button-debounce and encoder handling at low MHz to save power. According to the FM3 family datasheet, the 512 KB Flash supports rich graphical UI assets, multi-language strings, and safety firmware in a single image, while 64 KB RAM holds display framebuffers for segment or small TFT panels. The 5 V tolerance interfaces directly to LED drivers and buzzer amplifiers without level shifting, reducing BOM. The 120-LQFP package gives enough pins for capacitive touch sensing, motor direction relays, and serial diagnostic ports all on one MCU.

🏭

Motor Drive Peripheral Boards

Motor drive peripheral boards leverage the CY9BF506RBPMC-G-UNE1's multi-function timers to generate center-aligned PWM for 3-phase inverter control loops running at 10-20 kHz switching frequency. Per the FM3 datasheet, the Cortex-M3's single-cycle hardware multiply accelerates Clarke/Park transforms for field-oriented control, while 64 KB RAM fits sensorless observer state variables. The 5 V tolerance directly drives optocouplers to IGBT/MOSFET gate drivers, simplifying isolation. The 120-LQFP exposes enough ADC channels for current sensing on multiple shunts plus encoder inputs, eliminating the need for an external DSP. Industrial -40C to +85C rating suits motor bay thermal environments.

🌐

Serial Protocol Gateway Bridges

Serial protocol gateway bridges use the CY9BF506RBPMC-G-UNE1 to convert between UART, SPI, and I2C buses with protocol translation at line rates up to several Mbaud. According to the FM3 family datasheet, the Cortex-M3 at 80 MHz handles full-duplex protocol conversion with cycle-accurate DMA transfers, freeing the CPU for application logic. The 512 KB Flash holds multiple protocol stacks simultaneously (Modbus, DLMS/COSEM, M-Bus), while 64 KB RAM buffers packet reassembly without external memory. Industrial temperature grade and 5 V tolerance suit outdoor metering cabinets. The 120-LQFP footprint provides multiple UART channels for multi-drop bus aggregation.

🔧

Legacy 5V Industrial Retrofit Designs

Legacy 5V industrial retrofit designs benefit from the CY9BF506RBPMC-G-UNE1's wide 2.7-5.5 V supply and 5 V GPIO tolerance, allowing direct drop-in replacement of older 8051 or Cortex-M0 designs without reworking power rails. According to the FM3 datasheet, the Cortex-M3 core delivers roughly 10x the Dhrystone MIPS of legacy 8-bit MCUs at similar clock rates, enabling modern firmware features (TLS, GUI) on unchanged 5V hardware. The 120-LQFP footprint matches older 120-pin 5V MCU layouts, minimizing PCB rework. Industrial -40C to +85C range and long-term Infineon supply support multi-decade industrial fleet lifecycles without obsolescence risk.

What is the core and clock speed of CY9BF506RBPMC-G-UNE1?
The CY9BF506RBPMC-G-UNE1 integrates a 32-bit ARM Cortex-M3 core running up to 80 MHz. According to the Infineon FM3 MB9A140NA datasheet, the core implements the ARMv7-M architecture with hardware single-cycle multiply and a 3-stage pipeline, delivering approximately 90-100 DMIPS of integer throughput at the 80 MHz maximum frequency.
How much Flash and RAM does CY9BF506RBPMC-G-UNE1 have?
The CY9BF506RBPMC-G-UNE1 provides 512 KB (512K x 8) of on-chip Flash and 64 KB (64K x 8) of SRAM. Per the DigiKey listing, the Flash is organized as a single 512K x 8 bank, suitable for combined bootloader + application + data-logging partitions typical of industrial firmware.
What is the operating voltage range of CY9BF506RBPMC-G-UNE1?
The CY9BF506RBPMC-G-UNE1 operates from a single 2.7 V to 5.5 V supply, supporting both 3.3 V and 5 V system rails. Per the Arrow.com listing, the 5 V tolerance simplifies direct connection to legacy 5 V logic sensors and actuators without level shifters, a common requirement in industrial control retrofits.
What package does CY9BF506RBPMC-G-UNE1 use?
The CY9BF506RBPMC-G-UNE1 is housed in a 120-pin LQFP package measuring 16x16 mm with surface-mount gull-wing leads. The Vyrian listing confirms the JEDEC package code is LFQFP. The 120-pin count provides enough GPIO and peripheral pinout flexibility for industrial HMI and motor-control applications without external I/O expanders.
Is CY9BF506RBPMC-G-UNE1 the same as MB9BF506RBPMC-G-UNE1?
Yes, the CY9BF506RBPMC-G-UNE1 is functionally identical to the older MB9BF506RBPMC-G-UNE1. The CY prefix indicates Infineon branding after acquiring Cypress Semiconductor, while the MB9 prefix was the original Cypress part number. Both share the same FM3 MB9A140NA silicon and are drop-in compatible on the same 120-LQFP footprint.
Where can I buy CY9BF506RBPMC-G-UNE1 and what is the price?
As of 2026-10-11, the CY9BF506RBPMC-G-UNE1 is available from DigiKey, Mouser, Arrow, and Octopart-listed distributors. According to distributor listings, the unit price at qty 1 is approximately $14.50, with volume pricing down to around $8.70 at qty 1000. Stock varies by distributor; Arrow lists tray packaging.
What is the lead time for CY9BF506RBPMC-G-UNE1?
The CY9BF506RBPMC-G-UNE1 typically ships from authorized distributors within 1-2 weeks for small quantities, with longer lead times for volume orders. According to the Arrow.com listing, the part ships in tray packaging. Always confirm current stock directly with distributors as of 2026-10-11 before committing to a production schedule.
What is the difference between CY9BF506RBPMC-G-UNE1 and CY9BF506RBPMC-G-UNE2?
The CY9BF506RBPMC-G-UNE1 is from the FM3 MB9A140NA series, while the CY9BF506RBPMC-G-UNE2 is from the FM3 MB9B500B series. Both share the same 120-LQFP package, 512 KB Flash, and 80 MHz clock per DigiKey listings, but the MB9B500B series offers different peripheral mixes and improved peripheral features for newer designs.
Can I drop-in replace CY9BF506RBPMC-G-UNE1 with another MCU?
The CY9BF506RBPMC-G-UNE1 shares the 120-LQFP footprint with several FM3 family variants and some STM32 Cortex-M3 MCUs. Direct firmware-compatible drop-in replacements require matching peripheral maps, Flash/RAM sizes, and pinout. According to the FM3 datasheet, the CY9BF506R variants are firmware-compatible within the same series.
When should I choose CY9BF506RBPMC-G-UNE1 over a newer Cortex-M4 MCU?
Choose the CY9BF506RBPMC-G-UNE1 when you need a proven, cost-effective Cortex-M3 with industrial-grade 5 V tolerance for legacy industrial retrofits, building automation, and white-goods designs. According to the FM3 datasheet, its Cortex-M3 core is sufficient when DSP extensions and higher MHz are not required, saving cost and power over Cortex-M4 alternatives.
Is CY9BF506RBPMC-G-UNE1 suitable for motor drive peripherals?
Yes, the CY9BF506RBPMC-G-UNE1 is well suited for motor drive peripheral boards thanks to its 80 MHz Cortex-M3 core, 120 GPIO-rich pins, and 5 V tolerance for direct gate-driver interfacing. Per the FM3 family datasheet, its multi-function timers support PWM generation for variable-speed drives and stepper motor sequencing.
Where do I download the CY9BF506RBPMC-G-UNE1 datasheet PDF?
The CY9BF506RBPMC-G-UNE1 datasheet is published as part of the FM3 MB9BF506R family document on the Infineon website. According to the LCSC datasheet listing, the PDF is also mirrored at lcsc.com. The Alldatasheet listing cites a 115-page PDF for the closely related MB9BF506RBPMC-G-UNE1, which applies to this part.
Where can I find the CY9BF506RBPMC-G-UNE1 pinout diagram?
The CY9BF506RBPMC-G-UNE1 pinout is documented in the FM3 MB9BF506R family datasheet, which includes a 120-LQFP pin assignment table and ball-map diagram. According to the Vyrian listing, the package code is LFQFP and terminal form is gull wing, consistent with the standard 120-LQFP pin numbering convention used in this page's pinout.
What is the best cross-brand equivalent for CY9BF506RBPMC-G-UNE1?
The best cross-brand equivalent depends on your pin and peripheral requirements. For Cortex-M3 firmware compatibility in a different brand, STMicroelectronics STM32F103 series MCUs in 100-pin or 144-pin LQFP are common substitutes, though peripheral mapping requires firmware changes. Per distributor cross-reference results, true drop-in 120-LQFP replacements within Infineon FM3 family are more reliable than cross-brand.
What are the key specifications of CY9BF506RBPMC-G-UNE1 that engineers should know?
The CY9BF506RBPMC-G-UNE1 key specifications are: 32-bit ARM Cortex-M3 core at 80 MHz, 512 KB Flash, 64 KB SRAM, 2.7-5.5 V supply, 120-LQFP package, industrial -40C to +85C temperature grade, and UART/SPI/I2C connectivity. According to the Infineon FM3 datasheet, this combination targets multi-market industrial and consumer designs requiring 5 V tolerance and rich GPIO.

Données de référence d'ingénierie pour CY9BF506RBPMC-G-UNE1 — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the CY9BF506RBPMC-G-UNE1 when you need a proven ARM Cortex-M3 MCU with 5V tolerance for legacy industrial designs, building automation gateways, or white-goods user-interface modules. The 512KB Flash, 64KB RAM, and 120-LQFP pin count provide ample resources without external memory or I/O expanders. If you require extended temperature range (-40C to +105C), consider the CY9BF506RBPMC-G-JNE2 variant which uses the same 120-LQFP footprint. For lower Flash requirements (256KB), the MB9BF504RBPMC-G-UNE1 is a cost-optimized alternative within the same footprint. If you need a newer peripheral set, the CY9BF506RBPMC-G-UNE2 (MB9B500B series) is the direct successor with enhanced peripheral IP. All FM3 family parts share the same 120-LQFP footprint, enabling PCB layout reuse across variants and simplifying BOM management.

Comparaison avec les alternatives

Paramètre Ce produit CY9BF506RBPMC-G-UNE2 MB9BF506RBPMC-G-UNE1 CY9BF506RBPMC-G-JNE2 CY9BF506NBQC-G-JNE2 MB9BF504RBPMC-G-UNE1
Package 120-LQFP (16x16) 120-LQFP (16x16) 120-LQFP (16x16) 120-LQFP (16x16) 120-LQFP (16x16) 120-LQFP (16x16)
Brand Infineon Infineon Infineon (formerly Cypress) Infineon Infineon Infineon (formerly Cypress)
Core ARM Cortex-M3 ARM Cortex-M3 ARM Cortex-M3 ARM Cortex-M3 ARM Cortex-M3 ARM Cortex-M3
Maximum Clock 80 MHz 80 MHz 80 MHz 80 MHz 80 MHz 80 MHz
Flash Size 512 KB 512 KB 512 KB 512 KB 512 KB 256 KB
RAM Size 64 KB 64 KB 64 KB 64 KB 64 KB 64 KB
Supply Voltage 2.7 V to 5.5 V 2.7 V to 5.5 V 2.7 V to 5.5 V 2.7 V to 5.5 V 2.7 V to 5.5 V 2.7 V to 5.5 V
Operating Temperature -40C to +85C -40C to +85C -40C to +85C -40C to +105C -40C to +105C -40C to +85C
Series / Family FM3 MB9A140NA FM3 MB9B500B FM3 MB9A140NA FM3 MB9A140NA FM3 MB9A140NA FM3 MB9A140NA

Principaux différenciateurs

  • 5V supply tolerance for legacy industrial design (vs STM32F103 Cortex-M3 MCUs)
  • Identical silicon with two part number prefixes (vs MB9BF506RBPMC-G-UNE1 (Cypress prefix))
  • FM3 MB9B500B upgrade path (vs CY9BF506RBPMC-G-UNE2 (MB9B500B series))

Notes de conception

Per the FM3 MB9A140NA datasheet, place a 100nF ceramic decoupling capacitor within 5 mm of every VCC/VSS pair on the CY9BF506RBPMC-G-UNE1, plus a bulk 10uF tantalum or ceramic cap on each major supply rail. The 5 V supply tolerance simplifies direct connection to 5V peripherals, but high-current GPIO transitions can inject switching noise into VCC - adequate decoupling prevents brown-out resets during heavy motor-drive or relay switching events.

For the CY9BF506RBPMC-G-UNE1's external crystal on X0/X1 pins, keep traces short (<10 mm), symmetric, and guarded by a ground pour on both sides per FM3 datasheet recommendations. Route RESETn with a 10 kOhm pull-up to VCC and a 100nF capacitor to ground for noise immunity. Avoid routing high-speed signals (SPI, UART) directly under the crystal area to prevent capacitive coupling that can degrade oscillator stability at 80 MHz.

A common pitfall with the CY9BF506RBPMC-G-UNE1 is failing to strap the MD0/MD1 mode pins correctly during reset - leaving them floating can cause boot failure or unexpected Flash read modes. Per the FM3 datasheet, MD0 and MD1 must be tied to defined logic levels (typically VCC or VSS through 10 kOhm resistors) before RESETn de-assertion. Also, when migrating from the older MB9BF506R, verify that the boot vector configuration matches; the CY-prefix variant uses the same memory map but newer firmware tools may default to different linker scripts.

Estimated: at 80 MHz full Cortex-M3 activity with all peripherals enabled, the CY9BF506RBPMC-G-UNE1 draws approximately 50-70 mA from VCC, dissipating 0.25-0.35 W in the 120-LQFP. The 120-LQFP has a thermal resistance theta_JA of approximately 50 C/W (typical for plastic LQFP packages), yielding a junction temperature rise of 12-18C above ambient at full load - well within the 125C maximum junction rating at 85C ambient. For high-temperature installations near motor heat sources, add thermal vias under the exposed die attach pad or improve airflow.

Informations de conformité

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Sans plomb
Yes
Sans halogène
Unknown
Minerais de conflit
Compliant

RoHS compliant per Arrow.com and DigiKey listings. Halogen-free status not explicitly mentioned in verified distributor data - set to unknown. Not AEC-Q100 qualified - this is an industrial-grade MCU, not automotive-grade.

Données vérifiées le : 2026-10-11 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

CY9BF506RBPMC-G-UNE1 CY9BF506RBPMC-G-UNE1 datasheet Infineon FM3 MB9A140NA Cortex-M3 512KB Flash 80MHz MCU 120-LQFP ARM Cortex-M3 microcontroller 5V industrial ARM Cortex-M3 MCU CY9BF506 vs MB9BF506 CY9BF506RBPMC-G-UNE1 buy price stock FM3 MB9B500B successor building automation Cortex-M3 MCU white goods appliance MCU 5V tolerant motor drive Cortex-M3 controller LQFP-120 drop-in replacement for CY9BF506RBPMC Infineon CY9BF506RBPMC pinout what is the flash size of CY9BF506RBPMC-G-UNE1

Composants & termes associés

Infineon Cypress Semiconductor CY9BF506RBPMC-G-UNE1 MB9BF506RBPMC-G-UNE1 CY9BF506RBPMC-G-UNE2 MB9BF504RBPMC-G-UNE1 ARM Cortex-M3 ARMv7-M architecture Thumb-2 instruction set FM3 MB9A140NA FM3 MB9B500B microcontroller MCU RISC 120-LQFP LQFP gull wing JEDEC LFQFP package code Flash memory SRAM UART SPI I2C ADC PWM timer RoHS industrial temperature grade 5V tolerance building automation white goods motor drive
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