| PartNumber | PXAS37KBA/512 | PXAS37KBA,512 | PXAS37KBBE,557 |
| Description | 16-bit Microcontrollers - MCU | Microcontrollers - MCU 16-bit Microcontrollers - MCU OTP32/1K | Microcontrollers - MCU 16-bit Microcontrollers - MCU XA 16BIT 32KOTP/1KRM |
| Manufacturer | NXP | NXP Semiconductors | NXP Semiconductors |
| Product Category | 16-bit Microcontrollers - MCU | Embedded - Microcontrollers | Embedded - Microcontrollers |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | PLCC-68 | - | - |
| Core | XA | - | - |
| Data Bus Width | 16 bit | - | - |
| Height | 3.68 mm (Min) | - | - |
| Length | 24.33 mm (Max) | - | - |
| Width | 24.33 mm (Max) | - | - |
| Brand | NXP Semiconductors | - | - |
| Product Type | 16-bit Microcontrollers - MCU | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Unit Weight | 0.171777 oz | - | - |
| Series | - | XA | XA |
| Packaging | - | Tube | Tray |
| Package Case | - | 68-LCC (J-Lead) | 80-LQFP |
| Operating Temperature | - | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Supplier Device Package | - | 68-PLCC (24.23x24.23) | 80-LQFP (12x12) |
| Number of I O | - | 50 | 50 |
| Speed | - | 30MHz | 30MHz |
| EEPROM Size | - | - | - |
| Core Processor | - | XA | |
| RAM Size | - | 1K x 8 | 1K x 8 |
| Program Memory Type | - | OTP | OTP |
| Peripherals | - | PWM, WDT | PWM, WDT |
| Connectivity | - | EBI/EMI, I2C, UART/USART | EBI/EMI, I2C, UART/USART |
| Voltage Supply Vcc Vdd | - | 2.7 V ~ 5.5 V | 2.7 V ~ 5.5 V |
| Core Size | - | 16-Bit | 16-Bit |
| Program Memory Size | - | 32KB (32K x 8) | 32KB (32K x 8) |
| Data Converters | - | A/D 8x8b | A/D 8x8b |
| Oscillator Type | - | External | External |