Infineon Technologies CY9BF128TABGL-GK7E1
- Part No.:
- CY9BF128TABGL-GK7E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 192-LFBGA
- Datasheet:
-
CY9BF128TABGL-GK7E1.pdf
- Description:
- IC MCU 32B 1.0625MB FLSH 192FBGA
- Quantity:
- Payment:

- Shipping:

Inventory:4,981
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Product details
Overview
CY9BF128TABGL-GK7E1 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 1.5 MB dual-bank Flash, 192 KB SRAM (96 KB SRAM0 + 96 KB SRAM1), and operation up to 60 MHz. It integrates UART, CSIO, I²C, LIN, HDMI-CEC, 24-channel 12-bit ADC, 2-channel 10-bit DAC, QPRC, RTC, and six low-power modes - deployed in industrial motor control and automotive body electronics.
For engineers reviewing the CY9BF128TABGL-GK7E1 datasheet, CY9BF128TABGL-GK7E1 pinout, CY9BF128TABGL-GK7E1 application, or CY9BF128TABGL-GK7E1 equivalent, key selection criteria include dual-bank Flash security, 176-pin LQFP package compatibility, 2.7–5.5 V supply range, hardware watchdog independence from main clock, and FM3 peripheral manual TYPE12 classification.
Technical Context
The device implements an Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus SysTick for OS task scheduling. Its memory subsystem features dual-operation Flash enabling background programming and secure code protection, alongside two independent SRAM banks connected to I/D-code and system buses for concurrent CPU/DMA access.
Peripheral architecture includes a multi-function serial interface with 16 channels configurable as UART/CSIO/LIN/I²C, each with double-buffered full-duplex operation and dedicated baud rate generators. The A/D converter delivers 1.0 µs conversion time across 24 channels, while the QPRC supports position and revolution counting with configurable edge detection on AIN/BIN/ZIN inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, 60 MHz max - enables deterministic real-time execution with nested interrupt handling |
| Flash Memory | 1.5 MB dual-bank (1008 KB ROM0 + 512 KB ROM1 upper + 16 KB ROM0 lower + 64 KB ROM1 work) - supports read-while-write and secure boot partitioning |
| SRAM | 192 KB total (96 KB SRAM0 on I/D bus + 96 KB SRAM1 on system bus) - enables parallel instruction fetch and DMA data movement |
| A/D Converter | 24-channel, 12-bit SAR, 1.0 µs conversion @ 2.7–5.5 V - meets fast-sampling requirements for motor current sensing |
| Low-Power Modes | SLEEP, TIMER, RTC, STOP, Deep standby RTC, Deep standby STOP - allows sub-µA retention in deep standby with RAM state option |
| Supply Voltage | 2.7 V to 5.5 V - compatible with industrial 3.3 V and automotive 5 V rail systems without level-shifting |
| Package | 176-pin LQFP (24 × 24 mm, 0.5 mm pitch) - provides 154 high-speed GPIOs with 5V-tolerant capability on selected pins |
Pinout & Package
Package: 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pin functions defined per "List of Pin Functions" and "I/O Circuit Type" sections in FM3 Peripheral Manual TYPE12 documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC domains (core/analog) with dedicated VSS returns - required for noise isolation in mixed-signal operation |
| XTAL / EXTAL | Main clock oscillator input/output | Supports 4–48 MHz crystal or external clock source - feeds main PLL for system clock generation |
| RTCXTAL / RTCXTAL | Sub-clock oscillator input/output | 32.768 kHz crystal interface for RTC and low-power wake-up timing |
| INITX | Reset input | Active-low asynchronous reset pin - triggers power-on, software, or watchdog-initiated reset sequences |
| PA0–PA15, PB0–PB15, etc. | Multi-function GPIO | Configurable as UART/CSIO/I²C/LIN/ADC/DAC/QPRC signals - port relocate function enables flexible peripheral mapping |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash with security lock | Enables over-the-air firmware updates without halting application execution; prevents unauthorized code readout |
| 16-channel multi-function serial interface | Single peripheral block supports UART/CSIO/LIN/I²C per channel - reduces PCB routing complexity in multi-protocol systems |
| Hardware CRC accelerator (CRC16/CRC32) | Offloads integrity checking from CPU during CAN/LIN frame reception or Flash data verification - improves real-time response |
| Quadrature Position/Revolution Counter (QPRC) | Direct encoder interface with 16-bit position + 16-bit revolution counters and dual compare registers - eliminates need for external counter IC |
| Two independent watchdog timers | Hardware watchdog clocked by 100 kHz CR oscillator remains active in all low-power modes except STOP/Deep standby - ensures fail-safe recovery |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop BLDC motor control in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Real-time PWM generation, current sensing via 24-channel ADC, and QPRC-based rotor position feedback. Use Value: 1.0 µs ADC conversion and dead-time insertion in multi-function timer enable precise field-oriented control at 60 MHz core speed. | Use Scenario: Door module managing window lift, mirror fold, and seat position memory. IC Role / Device Role / Timing Role: LIN slave node with automatic ACK reply, RTC-based event scheduling, and EEPROM-emulated Flash wear leveling. Use Value: Dual-bank Flash allows safe firmware updates over LIN while maintaining runtime functionality and parameter storage. |
| Smart Energy Metering | Factory Automation I/O Hub |
Use Scenario: DIN-rail mounted meter with harmonic analysis and tamper detection. IC Role / Device Role / Timing Role: High-accuracy 12-bit ADC sampling at 10 kSPS, CRC32 validation of metrology data, and RTC timestamping. Use Value: Independent SRAM0/SRAM1 banks allow simultaneous metrology processing and communication stack operation without bus contention. | Use Scenario: Remote I/O controller interfacing with PLCs via RS-485 and local sensors via analog/digital inputs. IC Role / Device Role / Timing Role: Multi-protocol serial hub (UART/CSIO/I²C), 154 GPIOs with port relocation, and external bus interface for expansion memory. Use Value: 8-chip-select EBI supports NOR/NAND Flash and SRAM expansion - enables local firmware caching and configuration storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit Arm Cortex-M3 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F103ZET6 | 72 MHz Cortex-M3, 512 KB Flash, 64 KB SRAM, no dual-bank Flash or QPRC | Lacks integrated quadrature encoder interface and hardware CRC acceleration | Select when cost-sensitive designs require basic motor control without position-revolution tracking |
| RA4M1 (R7FA4M1AB3CFM) | 48 MHz Cortex-M4F, 1 MB Flash, 256 KB SRAM, no LIN or HDMI-CEC support | Includes FPU and TrustZone but omits LIN protocol stack and CEC physical layer drivers | Select when floating-point math and security isolation outweigh protocol-specific peripheral needs |
Compared with STM32F103ZET6 and RA4M1, CY9BF128TABGL-GK7E1 uniquely combines dual-bank Flash security, LIN 2.1 compliance, QPRC hardware, and HDMI-CEC transceivers - making it optimal for automotive body domain controllers requiring concurrent protocol support and firmware update resilience.
Availability
CY9BF128TABGL-GK7E1 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart energy metering, and factory automation I/O hubs requiring stable component supply and long-term lifecycle support.
Supply support for CY9BF128TABGL-GK7E1 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 manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and manufacturing infrastructure.
This part belongs to the FM3 family - a line of 32-bit Arm Cortex-M3 microcontrollers designed specifically for cost-sensitive, low-power embedded control in automotive and industrial applications requiring rich analog/motor/peripheral integration.
FAQ
What is the maximum operating frequency and supported clock sources?
The CY9BF128TABGL-GK7E1 operates up to 60 MHz using five selectable clock sources: two external oscillators (4–48 MHz main, 32.768 kHz sub), two built-in CR oscillators (4 MHz high-speed, 100 kHz low-speed), and the main PLL. The PLL can accept either the main clock or the 4 MHz CR oscillator as input, enabling flexible clock tree configuration for performance or low-power trade-offs.
Does this MCU support LIN 2.1 protocol natively, and what hardware features enable it?
Yes, it supports LIN 2.1 natively through its multi-function serial interface configured as LIN mode. Hardware features include automatic break field generation (13–16 bit length), break delimiter generation (1–4 bit), master/slave mode selection, and built-in error detection (parity, framing, overrun). These eliminate software overhead for LIN frame assembly and timing-critical signal generation.
How does the dual-bank Flash architecture improve firmware update reliability?
Dual-bank Flash allows one bank (e.g., ROM0) to run active firmware while the other (e.g., ROM1) is reprogrammed - enabling seamless over-the-air updates without system interruption. Combined with Flash security lock bits and CRC-accelerated integrity checks, it prevents partial writes, unauthorized access, and corrupted image execution during field upgrades.
What low-power modes are available, and which peripherals remain active in STOP mode?
Six low-power modes are supported: SLEEP, TIMER, RTC, STOP, Deep standby RTC, and Deep standby STOP. In STOP mode, the CPU, flash, and most clocks halt, but the RTC, LVD, and selected wakeup sources (e.g., external interrupt, RTC alarm) remain active. RAM content is retained unless configured for Deep standby STOP with RAM-off option.
CY9BF128TABGL-GK7E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 192-LFBGA
- Series:
- FM3 MB9B120TA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 60MHz
- Connectivity:
- CSIO, EBI/EMI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 154
- Program Memory Size:
- 1.0625MB (1.0625M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 160K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 24x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF128TABGL-GK7E1 FAQ
1.How can I place an order for CY9BF128TABGL-GK7E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF128TABGL-GK7E1 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 CY9BF128TABGL-GK7E1 reliable?
The price and inventory of CY9BF128TABGL-GK7E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF128TABGL-GK7E1 is usually 5 days.
3.What payment methods are accepted for CY9BF128TABGL-GK7E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF128TABGL-GK7E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF128TABGL-GK7E1?
CY9BF128TABGL-GK7E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF128TABGL-GK7E1 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 CY9BF128TABGL-GK7E1?
For technical support, including CY9BF128TABGL-GK7E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF128TABGL-GK7E1 requirements.
6.How does Aetrix verify that CY9BF128TABGL-GK7E1 is sourced from the original manufacturer or authorized distributors?
All CY9BF128TABGL-GK7E1 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 CY9BF128TABGL-GK7E1 meets industry standards.
7.What is the process for return or replacement of CY9BF128TABGL-GK7E1?
All CY9BF128TABGL-GK7E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF128TABGL-GK7E1, 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 CY9BF128TABGL-GK7E1 part is unused and in its original packaging.
Return procedure for CY9BF128TABGL-GK7E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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