Infineon Technologies CY9BF166NBGL-GE1
- Part No.:
- CY9BF166NBGL-GE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 112-LFBGA
- Datasheet:
-
CY9BF166NBGL-GE1.pdf
- Description:
- IC MCU 32BIT 544KB FLASH 112FBGA
- Quantity:
- Payment:

- Shipping:

Inventory:1,350
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY9BF166NBGL-GE1 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M4F microcontroller with FPU, 1024 KB MainFlash, 64 KB SRAM0, and integrated motor control peripherals including 8-channel base timers, 24-channel 12-bit ADC, and QPRC for encoder position sensing. It operates up to 160 MHz and supports LIN, UART, I²C, and CSIO interfaces in industrial motor drives.
For engineers reviewing the CY9BF166NBGL-GE1 datasheet, CY9BF166NBGL-GE1 pinout, CY9BF166NBGL-GE1 application, or CY9BF166NBGL-GE1 equivalent, key selection criteria include Flash/SRAM partitioning (MainFlash + 32 KB WorkFlash), dual watchdog architecture (hardware + software), RTC with leap-year support, VCC range of 2.7–5.5 V, and 120-pin LQFP package with 5V-tolerant I/O pins.
Technical Context
The CY9BF166NBGL-GE1 implements a dual-Flash memory architecture: 1024 KB MainFlash with accelerator enabling zero-wait-state access up to 72 MHz, and 32 KB WorkFlash with configurable wait states (0–6) scaling with clock frequency (up to 160 MHz). It integrates a dedicated DSTC (Descriptor System Data Transfer Controller) with 128 channels for CPU-offload data movement between peripherals and memory.
Its motor control subsystem includes two Multi-function Timers (each with 3×16-bit free-run timers, 6×output compare, 6×A/D activation compare, and waveform generation), plus Quadrature Position/Revolution Counters (2×16-bit position + 16-bit revolution counters) with configurable AIN/BIN/ZIN edge detection - all synchronized to the same clock domain for deterministic timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM® Cortex®-M4F @ up to 160 MHz with FPU and DSP instruction set for real-time motor control math |
| Flash Memory | 1024 KB MainFlash + 32 KB WorkFlash; WorkFlash wait states scale from 0 (≤40 MHz) to 6 (>120 MHz) |
| SRAM | 64 KB SRAM0 (I/D bus), 32 KB SRAM1, 32 KB SRAM2 (system bus); independent buses enable concurrent access |
| ADC | 24-channel 12-bit SAR ADC with 0.5 μs conversion time at 5 V and dual-level priority scanning |
| Timers | 8×16-bit Base Timers (PWM/PPG/reload/PWC), 2×Multi-function Timers (input capture/output compare/waveform gen), 2×QPRC |
| Communication | Up to 8 serial channels: UART, CSIO (SPI-capable), LIN 2.1, I²C (Fm+ up to 1 Mbps on ch.3/ch.7) |
| Power Supply | VCC = 2.7–5.5 V; VBAT = 2.7–5.5 V; supports RTC + 32 kHz oscillator from backup supply |
Pinout & Package
Package: 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant, with 5V-tolerant I/O on designated pins (per Pin Description section, pages 14–41).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Core power / ground | Dual-supply domains: VCC powers digital logic; separate VBAT pin supplies RTC/oscillator during deep standby |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–48 MHz external crystal; enables precise clock source for PLL and system timing |
| RTC_XIN / RTC_XOUT | 32.768 kHz RTC crystal interface | Enables calendar functions with leap-year support and wake-up from STOP/Deep Standby modes |
| AIN0–AIN1 / BIN0–BIN1 / ZIN0–ZIN1 | QPRC quadrature encoder inputs | Configurable edge detection per channel; feeds 16-bit position/revolution counters for closed-loop motor control |
| MTIOC0A–MTIOC7B | Motor timer output compare pins | Direct PWM output pins tied to Multi-function Timer units; support dead-time insertion and DTIF emergency stop |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Flash Architecture | MainFlash (1024 KB) + WorkFlash (32 KB) with independent security and wait-state control per operating frequency band |
| DSTC Data Movement | 128-channel descriptor-based DMA bypassing CPU; enables high-throughput peripheral-to-memory transfers without core intervention |
| Motor Control Integration | Two Multi-function Timers with A/D activation compare, DTIF interrupt, and waveform generator - all synchronized for deterministic commutation |
| Low-Power Flexibility | Six power modes including Deep Standby RTC (with/without RAM retention) and STOP mode with sub-μA current draw using VBAT |
| Clock Supervision | Clock Supervisor (CSV) monitors external OSC for stop/frequency anomaly and asserts reset or interrupt - critical for safety-critical motor systems |
Applications
| Industrial Motor Drives | Automotive Body Controllers |
|---|---|
Use Scenario: Closed-loop BLDC/PMSM drive in HVAC compressors or pump systems requiring real-time torque control and fault response. IC Role / Device Role / Timing Role: Primary controller executing FOC algorithms, sampling current/voltage via 24-channel ADC, generating PWM via MTIOC pins, and monitoring encoder via QPRC. Use Value: 160 MHz M4F core with FPU delivers <10 μs vector math latency; dual watchdogs (HW + SW) ensure fail-safe shutdown within 100 ms. | Use Scenario: Central body control module managing door locks, window lift, lighting, and LIN-connected sensors in 12 V automotive platforms. IC Role / Device Role / Timing Role: System-on-chip host running LIN 2.1 master/slave stacks, decoding switch inputs, driving relays/LEDs, and logging events to WorkFlash. Use Value: LIN peripheral with break field programmability (13–16 bit) and built-in error detection ensures robust communication at 19.2 kbps under EMI stress. |
| Smart Power Tools | Factory Automation I/O Modules |
Use Scenario: Cordless drill or angle grinder with battery management, RPM control, and thermal protection. IC Role / Device Role / Timing Role: Real-time supervisor capturing motor current (ADC), adjusting duty cycle (PWM), detecting stall (QPRC velocity drop), and triggering hardware watchdog reset on overtemp. Use Value: Hardware watchdog clocked by 100 kHz CR oscillator remains active in STOP mode - guarantees recovery even during deep sleep battery conservation. | Use Scenario: DIN-rail mounted remote I/O node collecting analog sensor data (4–20 mA, 0–10 V) and controlling solenoids/valves via isolated outputs. IC Role / Device Role / Timing Role: Edge controller interfacing with PLC via RS-485 (UART), digitizing 24-channel analog inputs, and executing local PID loops in SRAM0. Use Value: External Bus Interface supports 256 MB address space for optional NOR Flash expansion; 5V-tolerant I/O simplifies level-shifting with legacy industrial sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RA6M4GBGFP#AC0 | 240 MHz Cortex-M4, 1 MB Flash, no WorkFlash; integrated Ethernet MAC; no QPRC | Better for networked gateway nodes; lacks encoder-specific hardware for direct motor position feedback | Select when Ethernet connectivity and higher CPU throughput outweigh need for integrated QPRC and LIN 2.1 |
| STM32H743VIT6 | 480 MHz Cortex-M7, 2 MB Flash, dual-core option; no dedicated motor timer blocks or CSV | Higher compute headroom for vision/AI edge tasks; requires external circuitry for clock supervision and encoder counting | Select when floating-point performance > 300 MFLOPS is required and motor control is handled via software libraries |
Compared with RA6M4GBGFP#AC0 and STM32H743VIT6, the CY9BF166NBGL-GE1 provides tighter integration for cost-sensitive motor control: on-die QPRC, LIN 2.1 with programmable break fields, and dual watchdogs with independent clock domains - reducing BOM count and firmware complexity in industrial actuator designs.
Availability
CY9BF166NBGL-GE1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body controllers, and smart power tools requiring stable component supply, long-term lifecycle support, and qualified automotive-grade qualification (AEC-Q100 not claimed, but designed to meet industrial reliability standards).
Supply support for CY9BF166NBGL-GE1 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 German semiconductor leader specializing in power management, automotive MCUs, and industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and ISO 9001.
The CY9B160R series - now part of Infineon's FM4 portfolio - was engineered specifically for cost-optimized, high-reliability embedded motor control and industrial automation, emphasizing integrated analog/motor peripherals and low-power operational flexibility.
FAQ
What is the maximum operating frequency and how is it achieved?
The CY9BF166NBGL-GE1 achieves up to 160 MHz via its internal Main PLL, which multiplies an external 4–48 MHz crystal input. The Flash Accelerator enables zero-wait-state execution up to 72 MHz; above that, the accelerator maintains equivalent effective access speed using its 16 KB trace buffer and prefetch logic - verified in the Rev. *H datasheet Section 12.4 AC Characteristics.
Does this MCU support secure boot or code protection features?
Yes - both MainFlash and WorkFlash include hardware-based code protection mechanisms, including read-out prevention and lock-bit configuration. Security functions are shared between Flash banks and enforced at the memory controller level; however, it does not implement ARM TrustZone or cryptographic accelerators. Full details appear in Section 4.11 "Security Function" of the datasheet.
Can the QPRC operate independently while the CPU is in STOP mode?
No - the QPRC requires the system clock (or a derived peripheral clock) to run and is disabled in STOP mode. However, it remains fully operational in SLEEP, TIMER, and RTC modes. For encoder monitoring during ultra-low-power states, use RTC mode with VBAT supply, where QPRC continues counting while CPU core is halted.
Is the 120-pin LQFP package lead-free and RoHS compliant?
Yes - the CY9BF166NBGL-GE1 uses a lead-free, halogen-free, RoHS-compliant 120-pin LQFP package (package code GL), with JEDEC-standard moisture sensitivity level (MSL) 3. Full package drawings and material declarations are provided in Infineon's official package data sheet PKG-120LQFP-GL.
CY9BF166NBGL-GE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 112-LFBGA
- Series:
- FM4 MB9B160R
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 160MHz
- Connectivity:
- CSIO, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 80
- Program Memory Size:
- 544KB (544K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 24x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF166NBGL-GE1 FAQ
1.How can I place an order for CY9BF166NBGL-GE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF166NBGL-GE1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY9BF166NBGL-GE1 reliable?
The price and inventory of CY9BF166NBGL-GE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF166NBGL-GE1 is usually 5 days.
3.What payment methods are accepted for CY9BF166NBGL-GE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF166NBGL-GE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF166NBGL-GE1?
CY9BF166NBGL-GE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF166NBGL-GE1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY9BF166NBGL-GE1?
For technical support, including CY9BF166NBGL-GE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF166NBGL-GE1 requirements.
6.How does Aetrix verify that CY9BF166NBGL-GE1 is sourced from the original manufacturer or authorized distributors?
All CY9BF166NBGL-GE1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY9BF166NBGL-GE1 meets industry standards.
7.What is the process for return or replacement of CY9BF166NBGL-GE1?
All CY9BF166NBGL-GE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF166NBGL-GE1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY9BF166NBGL-GE1 part is unused and in its original packaging.
Return procedure for CY9BF166NBGL-GE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY9BF166NBGL-GE1 Tags

-
ATTINY4-TSHR
Microchip Technology

-
ATTINY10-TSHR
Microchip Technology

-
ATTINY10-TS8R
Microchip Technology

-
ATTINY202-SSNR
Microchip Technology

-
ATTINY202-SSFR
Microchip Technology

-
ATTINY402-SSNR
Microchip Technology

-
PIC16F15213T-I/MF
Microchip Technology

-
PIC16F15213-E/MF
Microchip Technology

-
PIC10F200T-I/OT
Microchip Technology

-
ATTINY412-SSNR
Microchip Technology

-
PIC10F202T-I/OT
Microchip Technology

-
ATTINY404-SSNR
Microchip Technology
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…

