| Part Number | TMS320DM640AGNZA4 | TMS320DM640AZNZA4 | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | Embedded - DSP (Digital Signal Processors) | Embedded - DSP (Digital Signal Processors) | 
|   |   | |
| Product Status | Discontinued at Digi-Key | Obsolete | 
| Type | Fixed Point | Fixed Point | 
| Interface | I²C, McASP, McBSP | I²C, McASP, McBSP | 
| Clock Rate | 400MHz | 400MHz | 
| Non-Volatile Memory | External | External | 
| On-Chip RAM | 160kB | 160kB | 
| Voltage - I/O | 3.30V | 3.30V | 
| Voltage - Core | 1.20V | 1.20V | 
| Operating Temperature | -40°C ~ 105°C (TC) | -40°C ~ 105°C (TC) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 548-BBGA, FCBGA | 548-BBGA, FCBGA | 
| Supplier Device Package | 548-FCBGA (27x27) | 548-FCBGA (27x27) |