| PartNumber | TMS320C6421ZWT5 | TMS320C6421ZWT6 | TMS320C6421ZWT4 |
| Description | Digital Signal Processors & Controllers - DSP, DSC Fixed-Pt Dig Signal Proc | Digital Signal Processors & Controllers - DSP, DSC Fixed-Pt Dig Signal Proc | Digital Signal Processors & Controllers - DSP, DSC Fixed-Pt Dig Signal Proc |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Digital Signal Processors & Controllers - DSP, DSC | Digital Signal Processors & Controllers - DSP, DSC | Digital Signal Processors & Controllers - DSP, DSC |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | nFBGA-361 | nFBGA-361 | nFBGA-361 |
| Series | TMS320C6421 | TMS320C6421 | TMS320C6421 |
| Product | DSPs | DSPs | DSPs |
| Core | TMS320 | TMS320 | TMS320 |
| Maximum Clock Frequency | 500 MHz | 600 MHz | 400 MHz |
| Operating Supply Voltage | 1.2 V | 1.2 V | 1.05 V, 1.2 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 90 C | + 90 C | + 90 C |
| Packaging | Tube | Tube | Tube |
| Program Memory Type | Asynchronous, SRAM, DDR2, SDRAM, NAND Flash | Asynchronous, SRAM, DDR2, SDRAM, NAND Flash | Asynchronous, SRAM, DDR2, SDRAM, NAND Flash |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Data ROM Size | 64 kB | 64 kB | 64 kB |
| Number of I/Os | 111 I/O | 111 I/O | 111 I/O |
| Data Bus Width | 16 bit | 16 bit | 16 bit |
| Instruction Type | Fixed Point | Fixed Point | Fixed Point |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | DSP - Digital Signal Processors & Controllers | DSP - Digital Signal Processors & Controllers | DSP - Digital Signal Processors & Controllers |
| Factory Pack Quantity | 90 | 90 | 90 |
| Subcategory | Embedded Processors & Controllers | Embedded Processors & Controllers | Embedded Processors & Controllers |
| Unit Weight | 0.027845 oz | 0.027845 oz | 0.027845 oz |