| PartNumber | MC9328MX21VM | MC9328MX21VK | MC9328MX21VKR2 |
| Description | Processors - Application Specialized DB I.MX21 17X17 PB-FR | Processors - Application Specialized DB I.MX21 PB-FR | Processors - Application Specialized DB I.MX21 PB-FR |
| Manufacturer | NXP | NXP | NXP |
| Product Category | Processors - Application Specialized | Processors - Application Specialized | Processors - Application Specialized |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | MAPBGA-289 | MAPBGA-289 | MAPBGA-289 |
| Series | i.MX28 | i.MX21 | - |
| Application | Consumer Applications | Multimedia Applications | Multimedia Applications |
| Core | ARM926EJ-S | ARM926EJ-S | ARM926EJ-S |
| Number of Cores | 1 Core | 1 Core | 1 Core |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 454 MHz | 266 MHz | 266 MHz |
| L1 Cache Instruction Memory | 16 kB | 16 kB | 16 kB |
| L1 Cache Data Memory | 32 kB | 16 kB | 16 kB |
| Operating Supply Voltage | 1.35 V to 1.55 V | 1.45 V to 1.65 V | 1.45 V to 1.65 V |
| Minimum Operating Temperature | - 40 C | 0 C | 0 C |
| Maximum Operating Temperature | + 85 C | + 70 C | + 70 C |
| Packaging | Tray | Tray | Reel |
| Memory Type | DDR, DDR2, LV-DDR2, NAND Flash | SDRAM | SDRAM |
| Brand | NXP / Freescale | NXP / Freescale | NXP / Freescale |
| Data RAM Size | 128 kB | - | - |
| Data ROM Size | 128 kB | - | - |
| Interface Type | CAN, Ethernet, SDIO, USB | 1-Wire, Audio, I2C, IrDA, SPI, UART, USB | 1-Wire, Audio, I2C, IrDA, SPI, UART, USB |
| I/O Voltage | 1.8 V, 3.3 V, 5 V | 1.7 V to 3.3 V | 1.7 V to 3.3 V |
| Moisture Sensitive | Yes | Yes | Yes |
| Processor Series | i.MX28x | i.MX21 | i.MX21 |
| Product Type | Processors - Application Specialized | Processors - Application Specialized | Processors - Application Specialized |
| Factory Pack Quantity | 760 | 760 | 1000 |
| Subcategory | Processors - Application Specialized | Processors - Application Specialized | Processors - Application Specialized |
| Tradename | i.MX | - | - |
| Watchdog Timers | Watchdog Timer | Watchdog Timer | Watchdog Timer |
| Part # Aliases | 935317889557 | 935309396557 | - |
| Unit Weight | 0.016417 oz | 0.017447 oz | 0.017447 oz |
| Qualification | - | AEC-Q100 | - |
| Number of Timers/Counters | - | 3 x 32 bit | 3 x 32 bit |
| Shipping Restrictions | - | - |