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| Part Number | ADSP-21990BSTZ | ADSP-21992BSTZ | ADSP-21991BSTZ | ADSP-21990BST |
|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Obsolete | Active | Obsolete | Obsolete |
| Type | Fixed Point | Fixed Point | Fixed Point | Fixed Point |
| Interface | SPI, SSP | SPI, SSP | SPI, SSP | SPI, SSP |
| Clock Rate | 160MHz | 160MHz | 160MHz | 160MHz |
| Non-Volatile Memory | External | External | External | External |
| On-Chip RAM | 20kB | 128KB | 112kB | 20kB |
| Voltage - I/O | 3.30V | 3.30V | 3.30V | 3.30V |
| Voltage - Core | 2.50V | 2.50V | 2.50V | 2.50V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 176-LQFP | 176-LQFP | 176-LQFP | 176-LQFP |
| Supplier Device Package | 176-LQFP (24x24) | 176-LQFP (24x24) | 176-LQFP (24x24) | 176-LQFP (24x24) |
