| PartNumber | MB9AF421LWQN-G-JNE2 | MB9AF421LPMC1-G-JNE2 | MB9AF421LPMC-G-JNE2 |
| Description | ARM Microcontrollers - MCU 64KB FLASH 4KB RAM ARM Cortex M3 | ARM Microcontrollers - MCU 64KB FLASH 4KB RAM ARM Cortex M3 | Microcontrollers - MCU ARM Microcontrollers - MCU 64KB FLASH 4KB RAM ARM Cortex M3 |
| Manufacturer | Cypress Semiconductor | Cypress Semiconductor | Cypress Semiconductor Corp |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | Embedded - Microcontrollers |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | QFN-64 | LQFP-64 | - |
| Series | MB9A420L | MB9A420L | FM3 MB9A420L |
| Core | ARM Cortex M3 | ARM Cortex M3 | ARM Cortex M3 |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 40 MHz | 40 MHz | 40 MHz |
| Program Memory Size | 64 kB | 64 kB | 64KB (64K x 8) |
| Data RAM Size | 4 kB | 4 kB | 4 kB |
| Number of I/Os | 51 I/O | 51 I/O | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 105 C | + 105 C | + 105 C |
| Packaging | Tray | Tray | Tray |
| Program Memory Type | Flash | Flash | FLASH |
| Brand | Cypress Semiconductor | Cypress Semiconductor | - |
| Data RAM Type | SRAM | SRAM | SRAM |
| Data ROM Size | 64 kB | 64 kB | 64 kB |
| Data ROM Type | Flash | Flash | Flash |
| Interface Type | I2C, UART, USART, USB | I2C, UART, USART, USB | I2C UART USART USB |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| Factory Pack Quantity | 260 | 160 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Unit Weight | 0.007277 oz | 0.012088 oz | 0.012088 oz |
| Package Case | - | - | LQFP-64 |
| Operating Temperature | - | - | -40°C ~ 105°C (TA) |
| Supplier Device Package | - | - | 64-LQFP (10x10) |
| Number of I O | - | - | 51 |
| Speed | - | - | 40MHz |
| EEPROM Size | - | - | - |
| Core Processor | - | - | ARMR CortexR-M3 |
| RAM Size | - | - | 8K x 8 |
| Peripherals | - | - | LVD, POR, WDT |
| Connectivity | - | - | CAN, CSIO, I2C, LIN, UART/USART |
| Voltage Supply Vcc Vdd | - | - | 2.7 V ~ 5.5 V |
| Core Size | - | - | 32-Bit |
| Data Converters | - | - | A/D 8x12b, D/A 1x10b |
| Oscillator Type | - | - | Internal |
| Number of I Os | - | - | 51 I/O |