| VRS51C1000 |  | Ramtron International | Versa 8051 MCU with 64KB of IAP/ISP Flash | Original | PDF | 482.08KB | 48 | 
| VRS51C1000-40-L |  | Ramtron International | Versa 8051 MCU with 64KB of IAP/ISP Flash | Original | PDF | 482.08KB | 48 | 
| VRS51C1000-40-P |  | Ramtron International | Versa 8051 MCU with 64KB of IAP/ISP Flash | Original | PDF | 482.09KB | 48 | 
| VRS51C1000-40-Q |  | Ramtron International | Versa 8051 MCU with 64KB of IAP/ISP Flash | Original | PDF | 482.08KB | 48 | 
| VRS51C1100 |  | Unknown | Versa 8051 MCU with 128KB of IAP/ISP Flash | Original | PDF | 2.17MB | 50 | 
| VRS51C1100-40-L |  | Unknown | Versa 8051 MCU with 128KB of IAP/ISP Flash | Original | PDF | 2.17MB | 50 | 
| VRS51C1100-40-LG |  | Ramtron International | Versa 8051 MCU with 128KB of IAP/ISP Flash | Original | PDF | 2.17MB | 50 | 
| VRS51C1100-40-P |  | Unknown | Versa 8051 MCU with 128KB of IAP/ISP Flash | Original | PDF | 2.17MB | 50 | 
| VRS51C1100-40-PG |  | Ramtron International | Versa 8051 MCU with 128KB of IAP/ISP Flash | Original | PDF | 2.17MB | 50 | 
| VRS51C1100-40-Q |  | Unknown | Versa 8051 MCU with 128KB of IAP/ISP Flash | Original | PDF | 2.17MB | 50 | 
| VRS51C1100-40-QG |  | Ramtron International | Versa 8051 MCU with 128KB of IAP/ISP Flash | Original | PDF | 2.17MB | 50 | 
| VRS51C540-40-L |  | Unknown | Versa 8051 MCU with 4KB Flash | Original | PDF | 1.74MB | 40 | 
| VRS51C540-40-Q |  | Unknown | Versa 8051 MCU with 4KB Flash | Original | PDF | 1.74MB | 40 | 
| VRS51C560-40-L |  | Unknown | Versa 8051 MCUs with 8/16KB Flash | Original | PDF | 1.75MB | 40 | 
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| VRS51C560-40-P |  | Unknown | Versa 8051 MCUs with 8/16KB Flash | Original | PDF | 1.75MB | 40 | 
| VRS51C560-40-Q |  | Unknown | Versa 8051 MCUs with 8/16KB Flash | Original | PDF | 1.75MB | 40 | 
| VRS51C580-40-L |  | Unknown | Versa 8051 MCUs with 32/64KB | Original | PDF | 2.11MB | 49 | 
| VRS51C580-40-Q |  | Unknown | Versa 8051 MCUs with 32/64KB | Original | PDF | 2.11MB | 49 | 
| VRS51L1050 |  | Unknown | Versa 3.3 Volt 8051 MCU with 64KB of IAP/ISP Flash | Original | PDF | 66.32KB | 1 | 
| VRS51L1050 |  | Ramtron International | Versa 8051 3.3V MCU with 64KB of IAP/ISP Flash | Original | PDF | 512.92KB | 49 |